СПОСОБ ИЗВЛЕЧЕНИЯ НИКЕЛЯ И/ИЛИ КОБАЛЬТА ИЗ РУДЫ ИЛИ КОНЦЕНТРАТА

Изобретение может быть использовано для гидрометаллургического извлечения никеля и/или кобальта из руд и концентратов. Предложенный способ предусматривает окисление руды или концентрата под давлением при 130oС - 250oС в присутствии кислорода и кислого раствора, содержащего серную кислоту или сульфат металла, гидролизуемый в кислом растворе, а также ионы галогена, с получением раствора извлекаемого металла, обеспечивается удешевление процесса и повышение степени извлечения металлов. 21 з. п. ф-лы, 7 ил. , 1 табл.

СПОСОБ ПЕРЕРАБОТКИ ОБОРОТНОГО СКАНДИЙСОДЕРЖАЩЕГО РАСТВОРА УРАНОВОГО ПРОИЗВОДСТВА

Изобретение относится к извлечению скандия из техногенных и продуктивных скандийсодержащих растворов, образующихся при извлечении урана. Способ включает экстракцию скандия на твердом экстрагенте (ТВЭКС), реэкстракцию скандия, возвращение реэкстрагированного ТВЭКС на экстракцию скандия, осаждение фторида тория из раствора реэкстракции скандия, осаждение концентрата фторида скандия соединением кальция из дезактивированного раствора реэкстракции скандия с получением фильтрата, который насыщают по фтористоводородной кислоте и повторно направляют на реэкстракцию скандия и концентрата фторида скандия, который обрабатывают с получением труднорастворимого соединения скандия. Концентрат фторида скандия обрабатывают концентрированной серной кислотой, получают отходящие кислые газы и спек, из которого впоследствии осаждают труднорастворимое соединение скандия или направляют непосредственно на получение оксида скандия и нерастворимого остатка. Остаток обрабатывают раствором гидроксида натрия или карбоната ...

СПОСОБ ВЫДЕЛЕНИЯ СПОСОБНЫХ К ПОГЛОЩЕНИЮ ВОДОРОДА МЕТАЛЛОВ ИЗ РАСТВОРОВ И УСТАНОВКА ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

FIELD: metallurgy. SUBSTANCE: reduction is performed with hydrogen generated in solution; at that, reduction is catalysed with reduced metal itself, which is contained in finely dispersed state. Reduction process is performed in multi-pass reactor at variable pressure that is changed with frequency of 1-5 Hz from maximum to minimum values of 8 kg/cm 2 to 0.25 kg/cm 2 . Extraction plant of metals capable of hydrogen absorption from solutions includes dosing device, modified displacement pump, electrolyser for hydrogen generation and multi-pass reactor in the form of labyrinth. EFFECT: simplifying the process and improving the purity of extracted metal. 10 cl, 9 dwg, 8 tbl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 471 007 (13) C1 (51) МПК C22B 3/46 (2006.01) C22B 3/02 (2006.01) C22B 11/00 (2006.01) B22F 9/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011140220/02, 04.10.2011 (24) Дата начала отсчета срока действия патента: 04.10.2011 (73) Патентообладатель(и): Тарарыкин Александр Геннадьевич (RU) R U Приоритет(ы): (22) Дата подачи заявки: 04.10.2011 (72) Автор(ы): Тарарыкин Александр Геннадьевич (RU) (45) Опубликовано: 27.12.2012 Бюл. № 36 2 4 7 1 0 0 7 (56) Список документов, цитированных в отчете о поиске: SU 426400 A1, 23.02.1985. RU 2150354 C1, 10.06.2000. RU 2422545 C1, 27.06.2011. JP 6145827 A, 27.05.1994. RU 2242429 C1, 20.12.2004. JP 6299211 A, 25.10.1994. JP 6145727 A, 27.05.1994. EP 0073108 A1, 02.03.1983. (57) Реферат: Изобретение относится к способу выделения способных к поглощению водорода металлов из растворов, а также к установке для его осуществления. Восстановление проводят генерируемым в растворе водородом, причем восстановление катализируют самим восстановленным металлом, находящимся в высокодисперсном состоянии. Процесс восстановления ведут в многоходовом реакторе при переменном давлении, которое меняют с частотой 1-5 Гц от максимального и до минимального значений от 8 кг/см ...

СПОСОБ СЕЛЕКТИВНОГО ИЗВЛЕЧЕНИЯ ЖЕЛЕЗА (III) И МАРГАНЦА (II) ИЗ ВОДНЫХ РАСТВОРОВ

FIELD: hydrometallurgy. SUBSTANCE: invention relates to hydrometallurgy of non-ferrous metals and can be used in processing concentrates, industrial products and solid wastes containing metals. Method involves contacting the extractant and the solution, stirring the mixture, settling and separating the phases. First, extraction of Fe (III) ions with tributyl phosphate is carried out from an aqueous solution with concentration of 3N HCl, 240 NaCl g/dm 3 and temperature of 60 °C is added portionwise with minimum contact time of the solution and extractant. Method then includes re-extraction of iron ions from extract with water with precipitation from solution of oxide Fe 2 O 3 . Manganese precipitation is carried out from raffinate with ammonia while blowing solution with air at pH 8–8.5 and temperature of 50–55 °C. EFFECT: technical result consists in efficiency of selective extraction of Fe (III) and Mn (II) ions from aqueous solutions. 1 cl, 3 dwg, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 698 083 C1 (51) МПК C22B 3/38 (2006.01) C22B 47/00 (2006.01) C01G 49/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 3/20 (2019.05) (21)(22) Заявка: 2019109857, 03.04.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 21.08.2019 (73) Патентообладатель(и): Воропанова Лидия Алексеевна (RU) (45) Опубликовано: 21.08.2019 Бюл. № 24 (56) Список документов, цитированных в отчете о поиске: RU 2572927 С1, 20.01.2016. US 5030424 А1, 09.07.1991. RU 2581316 С1, 20.04.2016. JP 2009249674 A, 29.10.2009. US 20100119429 A1, 13.05.2010. RU 2491977 C1, 09.10. 2013. раствора с концентрацией 3н. HCl, 240 NaCl г/дм3 R U 2 6 9 8 0 8 3 (54) СПОСОБ СЕЛЕКТИВНОГО ИЗВЛЕЧЕНИЯ ЖЕЛЕЗА (III) И МАРГАНЦА (II) ИЗ ВОДНЫХ РАСТВОРОВ (57) Реферат: Изобретение относится к области и температурой 60°С порционным введением ТБФ гидрометаллургии цветных металлов и может при минимальном времени контакта раствора и быть использовано ...

Способ получения оксида иттербия-176

Изобретение относится к области выделения и очистки оксида иттербия, обогащенного иттербием с массовым числом 176, полученного методом электромагнитной сепарации. Способ получения оксида иттербия-176 из иттербийсодержащего концентрата включает разложение концентрата соляной кислотой, переработку концентрата в три этапа, причем на всех трех этапах осаждают оксалат иттербия - 176 в присутствии щавелевой кислоты из кислой среды, отделяют осадок, промывают его и прокаливают до оксида, на втором этапе проводят предварительное отделение тяжелых металлов в виде сульфидов, при этом на первом этапе из солянокислого раствора от разложения концентрата проводят трехкратное осаждение гидроксида иттербия-176 аммиаком при рН 14, отделение тяжелых металлов в виде сульфидов на втором этапе проводят при температуре 60°С, рН 3,5 и концентрации раствора 20 г/л по иттербию-176, а осаждение оксалата иттербия на всех этапах проводят в присутствии винной и щавелевой кислоты из раствора концентрацией 2 г/л по иттербию ...

СПОСОБ ВЫДЕЛЕНИЯ МЕТАЛЛА ИЗ ЕГО ОРГАНИЧЕСКОГО КОМПЛЕКСА

FIELD: hydrometallurgy. SUBSTANCE: complex is treated by low-acid alkali or alkali-earth metal chloride aqueous solution to decompose complex and release metal ions into solution. Metals involved are Cd, Cr, Co, Cu, Ti, Fe, Zn, Ge, As, Zr, Nb, Mo, Ru, Pd, Ag, Sn, Te, Ta, W, Os, Pt, Au, Hg, Pb, Sb, Bi. Extractants utilized are RO-PO(OH) 2 and R-PO(OH) 2 where R is branched alkyl with at least 12 carbon atoms. EFFECT: improved procedure. 12 cl, 6 tbl УДО ТГС П4 Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ” 2104 734 ' 13) СЛ 57 МК” В Ото 11/04, В 01 4 45/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93004834/25, 24.02.1993 (30) Приоритет: 25.02.1992 СВ 9204020.3 25.02.1992 СВ 9204018.7 (46) Дата публикации: 20.02.1998 (56) Ссылки: СВ, патент, 1428705, кл. В 01 0 11/04, 1976. (71) Заявитель: Зенека Лимитед (СВ) (72) Изобретатель: Доменико Карло Купертино[СВ], Питер Энтони Таскер[СВ] (73) Патентообладатель: (54) СПОСОБ ВЫДЕЛЕНИЯ МЕТАЛЛА ИЗ ЕГО ОРГАНИЧЕСКОГО КОМПЛЕКСА (57) Реферат: Использование: химическая технология, извлечение металла из его органического комплекса. Сущность способа. комплекс металла с органическим соединением обрабатывают слабокислым водным раствором хлорида щелочного или щелочноземельного металла. Содержание хлорида по крайней мере 4 моля. Комплекс разлагается. Ионы металла переходят в водный раствор. В качестве металла используют Са, Сг, Со, Си, П, Ее, Гп, Се, Зенека Лимитед (СВ) и О < Аз, Гг, №, Мо, Ки, Ра, Ад, $п, Те, Га, \, О$, РЕ Ач, На, РЬ, $5 или В. В качестве ©) экстрагента используют фосфорорганическое соединение формулы г ОН он | | < Е-о_Р=О ИЛИ В-Р=О | | > ОН ОН о . = где К - разветвленный алкильный радикал, содержащий по крайне мере 12 атомов с' углерода. 11 з.п. ф-лы, 6 табл. — О УДО ТГС П4 Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВО '’ 2104 734” С1 Оо” В 040 11/04, В 01 4 45/00 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 93004834/25, 24.02.1993 (71) АррисапЕ (30) Рпошу: 25. ...

Способ удаления натрия из хлоридных растворов

FIELD: technological processes. SUBSTANCE: invention relates to a process for removing sodium from a process stream of a hydrometallurgical process comprising ammonium chloride, nickel chloride, copper chloride, cobalt chloride and/or magnesium chloride. Method comprises the steps of: (a) withdrawing a selected flow of solutions and/or suspensions of the hydrometallurgical process from the process flow of the hydrometallurgical process, (b) evaporating water from the effluent stream to produce a saturated solution containing sodium, (c) crystallizing a portion of sodium chloride contained in a saturated solution containing sodium from said solution to obtain a sodium-depleted solution, and (d) returning the sodium-depleted solution to the process flow of the hydrometallurgical process. EFFECT: technical result is an increase in the economy and environmental safety of the process. 18 cl, 1 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 658 532 C1 (51) МПК C22B 3/22 (2006.01) C22B 3/44 (2006.01) C02F 9/10 (2006.01) C01D 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 3/22 (2006.01) (21)(22) Заявка: 2017107541, 01.09.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Оутотек (Финлэнд) Ой (FI) Дата регистрации: 21.06.2018 103449653 A, 18.12.2013. CN 102199704 A, 28.09.2011. RU 2005119098 A, 27.12.2006. EP 0492727 A1, 01.07.1992. 02.09.2014 FI 20145761 (45) Опубликовано: 21.06.2018 Бюл. № 18 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.04.2017 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/034769 (10.03.2016) C 1 C 1 FI 2015/050569 (01.09.2015) 2 6 5 8 5 3 2 Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" R U 2 6 5 8 5 3 2 (56) Список документов, цитированных в отчете о поиске: CN 101544437 A, 30.090.2009. CN Приоритет(ы): (30) Конвенционный приоритет: R U 01.09.2015 (72) Автор(ы): КОТИРАНТА Туукка (FI), ВАЛКАМА Кари (FI) ( ...

ПОЛУЧЕНИЕ СКАНДИЙ-СОДЕРЖАЩЕГО КОНЦЕНТРАТА И ПОСЛЕДУЮЩЕЕ ИЗВЛЕЧЕНИЕ ИЗ НЕГО ОКСИДА СКАНДИЯ ПОВЫШЕННОЙ ЧИСТОТЫ

Verfahren zur Reextraktion von Metallen aus organischen Phasen

Method for separating and isolating precious metals from non precious metals dissolved in solutions

A method for separating gold and/or silver from copper or other contaminant metals is provided in which a suitable filter membrane (64), particularly a nanofilter, is used to form a retentate (134) containing most of the multivalent metal cyanide complexes and a permeate (135) containing most of the precious metal cyanide complexes. The process is particularly applicable to the recovery of gold and/or silver from ores containing these metals and one or more contaminant metals. The precious metal can thereafter be recovered from the permeate (135) and the metal in the multivalent metal cyanide complex from the retentate (134).

Recovery of copper from copper solutions with reducing sugars and hydrosulphite

Process for the recovery of copper from copper-containing industrial waste waters, in which the ionogenic copper or the copper in complex form is firstly reduced with sugar, then with dithionite, and is separated in metallic form.

TREATMENT PROCESS FOR RECOVERY AND SEPARATION OF ELEMENTS FROM LIQUORS

Method for thiosulfate leaching of precious metal.containing materials

NOBEL METAL RECOVERY

Nobel metal recovery

Recovery of gold is enhenced to levels higher than indicated by conventional fire assay technique by dilution of the leaching liquor in the cyanide of gold ores at any time prior to the recovery of gold from solution. Depending on ore type pulp densities are reduced to 0.1 to 10 percent and held for a period of time, followed by conventional carbon in pulp recovery processes. In some cases solids are separated from the dilute solution and gold is extracted from the solution using carbon or iron exchange resins.

Solvent extraction settler arrangement

TREATMENT PROCESS FOR RECOVERY AND SEPARATION OF ELEMENTS FROM LIQUORS

Method for thiosulfate leaching of precious metal-containing materials

NOBEL METAL RECOVERY

Method for thiosulfate leaching of precious metal-containing minerals

Controlled copper leach recovery circuit

PROCESSES FOR RECOVERING ORGANIC SOLVENT EXTRACTANT FROM SOLID-STABILIZED EMULSIONS FORMED IN HYDROMETALLURGICAL SOLVENT EXTRACTION CIRCUITS

Method for thiosulfate leaching of precious metal.containing materials

Method for thiosulfate leaching os precious metal-containing minerals

Compositions and methods for coagulating silica from mineral processing streams

Controlled copper leach recovery circuit

SOLVENT EXTRACTION SETTLER ARRANGEMENT

Compositions and methods for coagulating silica from mineral processing streams

TREATMENT PROCESS FOR EXTRACTION OF PRECIOUS, BASEAND RARE ELEMENTS

Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning

Methods and compositions for the removal of impurities from an impurity-loaded ionic liquid.

Hydrometallurgical process and method for recovering metals

Solvent extraction settler arrangement

Processes for recovering organic solvent extractant from solid-stabilized emulsions formed in hydrometallurgical solvent extraction circuits

Treatment of hydrometallurgical process streams for removal of suspended fine particles.

Process of purification per extraction of a milieuliquide

Noble metal recovery.

Chloride assisted hydrometallurgical copper extraction

Chloride assisted hydrometallurgical extraction ofmetal

Method for thiosulfate leaching os precious metal-containing minerals

Solvent extraction settler arrangement

Methods and compositions for the removal of impurities from an impurity-loaded ionic liquid.

Processes for recovering organic solvent extractant from solid-stabilized emulsions formed in hydrometallurgical solvent extraction circuits

Treatment of hydrometallurgical process streams for removal of suspended fine particles.

Method for thiosulfate leaching os precious metal-containing minerals

Method for thiosulfate leaching of precious metal.containing materials

Solvent extraction settler arrangement

Methods and compositions for the removal of impurities from an impurity-loaded ionic liquid.

Processes for recovering organic solvent extractant from solid-stabilized emulsions formed in hydrometallurgical solvent extraction circuits

TREATMENT PROCESS FOR EXTRACTION OF PRECIOUS, BASEAND RARE ELEMENTS

TREATMENT PROCESS FOR RECOVERY AND SEPARATION OF ELEMENTS FROM LIQUORS

Controlled copper leach recovery circuit

Compositions and methods for coagulating silica from mineral processing streams

Compositions and methods for coagulating silica from mineral processing streams

Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning

TREATMENT PROCESS FOR EXTRACTION OF PRECIOUS, BASEAND RARE ELEMENTS

Treatment of hydrometallurgical process streams for removal of suspended fine particles.

Controlled copper leach recovery circuit

Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning

CLEANING METHOD OF MEANS EXTRACTION OF A LIQUID MEDIUM.

PROCEDURE FOR LEACHING OUT MINERALS UNDER ATMOSPHERIC PRESSURE

Selective extraction film for mining application

The present invention is related to a polymer membrane for the selective extraction of cobalt (II) ions as well as a method for extracting cobalt (II) ions using said polymer membrane.

Method for producing solutions containing nickel or cobalt

Provided is a method for producing solutions, by which two solutions, namely a high-purity nickel sulfate solution and a mixed solution of nickel sulfate and cobalt sulfate are able to be obtained at the same time from a sulfuric acid acidic solution containing nickel, cobalt and calcium. A method for producing solutions according to the present invention uses a sulfuric acid acidic solution containing nickel, cobalt and calcium and performs a first step S1 for producing a mixed solution of nickel sulfate and cobalt sulfate from the sulfuric acid acidic solution and a second step S2 for producing a solution of nickel sulfate from the sulfuric acid acidic solution in parallel. In the first step, the sulfuric acid acidic solution is subjected to solvent extraction by means of an extractant, thereby obtaining a first organic solvent after extraction containing calcium and a first extraction residue containing nickel and cobalt. In the second step, the sulfuric acid acidic solution is subjected ...

Process for acidic leaching of precious and chalcophile metals

A process for recovery of one or more elements, selected from precious metals and chalcophile metals as herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) a leaching step comprising contacting the material with an acidic solution containing a lixiviant comprising an aqueous amino acid-thiourea compound formed from an amino acid (as herein defined) and thiourea (as herein defined), in order to form a leachate containing the precious metal and/or chalcophile metal; and (ii) a recovery step comprising recovering the precious metal and/or chalcophile metal from the leachate.

Improved zinc oxide process

Controlled crystallisation of zinc containing crystals from a zinc containing purified ammonia – ammonium chloride liquor where the liquor used has a composition of 0.3 to 1M/l Zinc, 1 to 5M/l NH3 and 0.5 to 2.5M/l NH4Cl and is obtained by leaching oxidic zinc feed material and the crystals are precipitated by reducing the concentration of free ammonia to <1M/l where the zinc containing crystals are precipitated at a carefully controlled temperature where the temperature is controlled by maintaining the system at a set pressure and the target temperature is set based on the liquor composition and the desired composition of the zinc crystals.

Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning

The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning using the ferrous/ferric anode reaction, and the synergistic addition of ferrous iron to the leach step.

Maillard reactions products for enhancing selective separations

Process for production of commercial quality potassium nitrate from polyhalite

A method for the production of KNO from polyhalite is provided. The method comprises steps of decomposing said polyhalite into syngenite, gypsum, and soluble components, treating the solid decomposition products sequentially with HNO and Ca basic compound, precipitating the CaSO thus formed, and crystallizing the KNO from the solution remaining. The method recovers up to 75% of the potassium present in the raw polyhalite as KNO and substantially all of the remainder as a potassium magnesium sulfate salt.

Process for production of commercial quality potassium nitrate from polyhalite

A method for the production of KNO from polyhalite is provided. The method comprises steps of decomposing said polyhalite into syngenite, gypsum, and soluble components, treating the solid decomposition products sequentially with HNO and Ca basic compound, precipitating the CaSO thus formed, and crystallizing the KNO from the solution remaining. The method recovers up to 75% of the potassium present in the raw polyhalite as KNO and substantially all of the remainder as a potassium magnesium sulfate salt.

Method for recovery of silver from sulphur-containing zinc leach residues

The invention relates to a method of recovering silver and a method of controlling a leaching process for recovering silver from a direct zinc leach residue, an apparatus for recovering silver from a direct zinc leach residue, a control system for implementing the control method, and a computer program. The method comprising the steps of: 1) a silver leaching step, wherein the direct zinc leach residue is subjected to oxidative chloride leaching, having the following conditions: 1) chloride concentration of the leach solution in the range of 25-70 g/l ii) pH of the leach solution in the range 1.6 - 2.6 iii) redox potential of less than 460 mV (Pt vs. Ag/AgCI) 2) a silver recovery step, wherein silver is recovered from the silver containing leach solution.

Nickel and cobalt recovery using continuous ion exchange

A method for recovering nickel and cobalt from a product liquor solution by processing the product liquor solution through a continuous ion exchange process including a plurality of ion exchange beds containing nickel selective ion exchange resin that pass through individual process zones as part of a nickel recovery circuit, wherein the method includes the following steps: (a) passing the product liquor solution through an ion exchange bed to load nickel onto the ion exchange resin and produce a cobalt-containing raffinate solution, (b) passing a sulfuric acid solution through the loaded ion exchange bed to strip nickel from the ion exchange resin and produce a nickel-containing eluate, (c) passing a rinse solution through the stripped ion exchange bed, (d) adjusting the pH of the cobalt-containing raffinate solution to a pH of at least 2.3, (e) passing the cobalt-containing raffinate solution through an ion exchange bed to pre-load cobalt on the ion exchange resin, (f) repeating step ...

A process for producing high grade blast furnace feed from poor grade iron ore ultra fines

A process for producing high grade blast furnace feed from poor grade iron ore ultra fines

IN/PA-211 TITLE: A PROCESS FOR PRODUCING HIGH GRADE BLAST FURNACE FEED FROM POOR GRADE IRON ORE ULTRA FINES A process for producing high grade blast furnace feed from poor grade iron ore ultra fines consists of processing ultra fines by selective dispersion to separate gangue materials from settled material iron and processing settled material of iron by re-dispersing with non-selective dispersant. The dispersed settled material is then processed by selective flocculation with modified starch to separate concentrate iron for blast furnace feed from tailings leaving the gangue minerals in the dispersed phase. The process of separation between iron bearing minerals and the gangue minerals is carried out on the basis of surface charge conditions at a particular pH during re-dispersing with non-selective dispersant and segregating the finer particles by hydro-cyclone process for better flocculation to produce the final product that contains 68% Fe, 1% alumina and 1% silica. Fig. 1 ...

Recovery process

A process for the recovery of lithium from lithium bearing mica rich minerals, the process comprising passing an ore (1) containing one or more lithium bearing mica rich minerals to at least one pre-treatment step (50), passing the pre-treated ore to an acid leach step (60) thereby producing a pregnant leach solution, subjecting the pregnant leach solution to a series of process steps (80, 140, 160, 180, 200) in which one or more impurity metals are removed, and recovering lithium as a lithium containing salt product (44).

Solvent extraction settler arrangement

In a solvent extraction settler arrangement the outlet box (11) comprises an inner tube (18) arranged vertically inside a shaft (12), the inner tube being spaced from the side wall (13) of the shaft (12) to define an intermediate space (19) between the inner tube and the shaft. The inner tube (18) has an inner space (20) and an opening (21) at the lower part of the inner tube adjacent the bottom to form a flow path for the heavy solution phase to flow to the inner space (20). The shaft (12) comprises a second outlet (22) which is separate in relation to the discharge outlet (17) and above the level of the discharge outlet (17). The second outlet (22) opens through the side wall (13) to the intermediate space (19) at a location adjacent to the upper end of the shaft (12) and at the level of said layer (5) of entrained light solution phase for discharging said layer of entrained light solution phase from the intermediate space. The heavy solution phase (4) is discharged via the discharge ...

Molecularly Imprinted Polymer beads for extraction of metals and uses thereof

The present disclosure provides Molecularly Imprinted Polymer (MIP) technology for selectively sequestering one or more target molecules from chemical mixtures. Also disclosed herein are MIP beads and methods of making and using thereof.

Chloride assisted hydrometallurgical extraction of metal

CHEMICAL PROCESS

PROCESS FOR THE PRODUCTION OF MAGNESIUM OXIDE

PROCESS FOR THE RECOVERY OF NICKEL AND/OR COBALT FROM A CONCENTRATE

A process for the recovery of nickel and/or cobalt values from a concentrate containing nickel or cobalt hydroxide comprises the steps of subjecting the concentrate to a leaching stage with an ammonium solution to produce a leach solution containing nickel and/or cobalt values and a residue. The nickel concentration in the leach solution is controlled to a maximum value of about 3 to 25 g/l, preferably 8 to 15 g/l and more preferably 10 g/l.

PROCESS FOR RECOVERING METALS FROM A STREAM RICH IN HYDROCARBONS AND CARBONACEOUS RESIDUES

A process for recovering metals from a stream rich in hydrocarbons and carbonaceous residues by means of a treatment section, characterized in that it comprises the following steps: sending said stream to a primary treatment, effected in one or more steps, wherein said stream is treated in the presence of a fluxant agent in a suitable apparatus, at a temperature ranging from 80 to 180°C, preferably from 100 to 160°C, and subjected to liquid/solid separation in order to obtain a clarified product essentially consisting of liquids and a cake (oilcake); possibly subjecting the separated cake to drying, in order to remove the hydrocarbon component having a boiling point lower than a temperature ranging from 300 to 350°C from the cake; sending the cake, possibly dried, to a secondary thermal treatment comprising: a flameless pyrolysis of the cake effected between 400 and 800°C, preferably between 500 and 670°C; an oxidation of the pyrolysis residue effected in an oxidizing environment and at ...

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

METHODS, MATERIALS AND TECHNIQUES FOR PRECIOUS METAL RECOVERY

An aqueous-based leaching solution for precious metal, the leaching solution comprising iodide salt material; and carboxylic acid material, the leaching solution being made by a process including the step of passing a first mixture through an electrochemical cell until a measured oxidation reduction potential (ORP) is at least 540 mV, the first mixture including iodide salt material, carboxylic acid material and water.

COPPER LEACHING PROCESS

Provided is a process to decrease leaching times of primary and secondary crushed copper minerals with a defined particle size which includes a first agglomeration step, a second curing step, a third leaching step and a forth washing step.

TREATMENT PROCESS FOR EXTRACTION OF PRECIOUS, BASE AND RARE ELEMENTS

This invention describes a hydrometallurgical process for the recovery and separation of valuable elements, in particular gold and silver, from a feed material comprising a refractory, intractable or otherwise poorly responding to conventional treatment routes ores, concentrates and other materials. In particular, the process is a process integrated into one or more existing value element extraction processes.

PROCESS OF ISOLATING RARE EARTH ELEMENTS

A process of isolating a REE or a group of REE from a solution or dispersion containing said REE or said group of REEs comprising the following steps: (i) preparing a mixture comprising said solution or dispersion and biomass comprising at least one organism selected from any one of the following organism classes: eubacteria, archaea, algae, and fungi, whereby the at least one organism is capable of adsorbing or accumulating said REE or said group of REEs; (ii) incubating said mixture of step (i) for allowing the adsorption or accumulation of said REE or said group of REEs by said biomass; (iii) separating the biomass having adsorbed or accumulated REE(s) from the mixture of step (ii); and (iv) isolating said REE or said group of REEs from said biomass separated in step (iii).

METHOD OF DETECTION AND EXTRACTING PRECIOUS METALS FROM ORE-BEARING SLURRY

... ²Method and apparatus are provided to select precious metals such as ²gold, silver and platinum from a slurry of ore and water. Slurry is directed ²to pass ²over at least one detector comprising a pair of electrodes. The electrodes are ²²spaced apart to form a detection gap. A slurry sample, having precious metals ²therein, is received at the gap. Metals detected at the gap generate a signal ²that ²triggers actuation of the detector to shunt or redirect the sample slurry and ²metals ²therein to a collection stream. Remaining slurry passes by the detector for ²further ²processing or to be collected as waste. One or more detectors are provided ²and, ²preferably, an array of detectors are provided in series, for collection ²efficiency. ²Each series of detectors can be provided in parallel arrangements for ²increased ²collection capacity.² ...

A PROCESS FOR PRODUCING HIGH GRADE BLAST FURNACE FEED FROM POOR GRADE IRON ORE ULTRA FINES

A process for producing high grade blast furnace feed from poor grade iron ore ultra fines consists of processing ultra fines by selective dispersion to separate gangue materials from settled material iron and processing settled material of iron by re-dispersing with non-selective dispersant The dispersed settled material is then processed by selective flocculation with modified starch to separate concentrate iron for blast furnace feed from tailings leaving the gangue minerals in the dispersed phase. The process of separation between iron bearing minerals and the gangue minerals is carried out on the basis of surface charge conditions at a particular pH during re-dispersing with non-selective dispersant and segregating the finer particles by hydro-cyclone process for better flocculation to produce the final product that contains 68% Fe, 1% alumina and 1% silica.

A PROCESS FOR TREATING LIQUID EFFLUENTS AND RECOVERING METALS

A process for treating liquid effluents and recovering metals with the precipitation of hydroxide of magnesium through amines, followed by regeneration of the amine and utilization of the sub-products magnesium and sulphur.

CHLORIDE ASSISTED HYDROMETALLURGICAL COPPER EXTRACTION

CHLORIDE ASSISTED HYDROMETALLURGICAL COPPER EXTRACTION A process for the extraction of copper from a sulphide copper ore or concentrate comprises subjecting the ore or concentrate to a first leaching at an elevated temperature and pressure in the presence of oxygen and a lixiviant which comprises an acidic solution of chloride and sulphate ions to produce an insoluble basic copper sulphate. The basic copper sulphate so produced is leached in a second leaching preferably at atmospheric pressure with an acidic sulphate solution to dissolve the basic copper salt to produce a leach liquor containing copper sulphate in solution. The resulting leach liquor is subjected to solvent extraction to produce a copper concentrate solution and a raffinate comprising protons and sulphate ions in solution. Protons and sulphate ions are extracted from the raffinate to produce a sulphuric acid solution which sulphuric acid solution is then recycled to the first leaching at elevated pressure and temperature ...

TREATMENT OF A SOLUTION CONTAINING IRON SALTS

Soluble manganese salts present as contamination of a solution containing iron salts are removed by adding an oxidation agent capable of converting the soluble manganese salts to manganese dioxide and by adding manganese dioxide particles as seeding agent whereby any colloidal manganese dioxide is deposited on the seed particles.

PROCEDURE FOR THE PROCESSING OF NON-FERROUS METAL HYDROXIDE SLUDGE ARREARS.

METHOD AND DEVICE FOR BIOLEACHING

СПОСОБ ОЧИСТКИ БИКАРБОНАТА ЛИТИЯ

Изобретение относится к способу очистки содержащего примеси бикарбоната лития с помощью катионообменной смолы. Кроме очистки раствора с помощью ионного обмена, стадии обработки включают регенерацию примесных металлов, связанных со смолой. Регенерация состоит из промывки смолы водой, элюирования кислым раствором, промывки водой, нейтрализации щелочным раствором и промывки водой. Способ отличается тем, что нейтрализацию осуществляют раствором гидроксида натрия.

SETTLER FOR EXTRACTION IN SOLUTION

METHOD AND DEVICE FOR HOMOGENIZATION AND STABILIZATION OF IRON-CONTAINING RESIDUE

Способ флоккуляции и композиция, содержащая эмульсии типа "вода в масле в воде"

Способ и композиция для флоккуляции и отделения суспендированных твердых частиц от обрабатываемого промышленного потока, содержащего суспендированные твердые частицы. Способ включает стадии введения в поток полимера эмульсии типа "вода в масле в воде" в количестве, эффективном для флоккуляции суспендированных твердых частиц и отделения флоккулированных твердых частиц от него. Композиция представляет собой эмульсию типа "вода в масле в воде" водорастворимого полимера, где непрерывной фазой является водный раствор водорастворимой соли.

СПОСОБ ОЧИСТКИ ЭКСТРАГИРОВАНИЕМ ИЗ ЖИДКОЙ СРЕДЫ И ЕГО ПРИМЕНЕНИЕ

Enhanced recovery of gold

An improved method for recovering refractory gold from a material comprising treating the material to at least partially remove nitric acid-insoluble lead moieties.

PROCESS FOR SEPARATING ZIRCONIUM AND HAFNIUM TETRACHLORIDES FROM MIXTURES

A simple, inexpensive and non-corrosive industrial separation method making it possible to separate zirconium and hafnium tetrachlorides from mixtures thereof, a simple industrial method allowing the zirconium/hafnium separation, and a method making it possible to produce fractions enriched with zirconium and containing hafnium at a trace level are disclosed. 1. A method for separating hafnium tetrachloride and zirconium tetrachloride , from a mixture of Zr tetrachloride/aromatic compound and Hf tetrachloride/aromatic compound complexes , comprising:carrying out liquid-liquid extraction to separate said mixture of Hf tetrachloride and Zr tetrachloride, with a Zr/Hf enrichment of at least 100/1 (expressed by mass), using an ionic liquid, the melting point of which is below 100° C., with a non-nucleophilic anion, under anhydrous conditions.2. The method according to claim 1 , in which the liquid-liquid extraction is carried out with a hydrocarbon or a mixture of hydrocarbons.3. The method according to claim 1 , in which the temperature is less than approximately 100° C. claim 1 , and is in particular from approximately 15 to approximately 35° C.5. The method according to claim 1 , in which said ionic liquid is a mixture claim 1 , in particular stoichiometric claim 1 , of one or more ammonium chlorides and one or more metal chlorides.6. The method according to claim 5 , in which the metal chloride or chlorides are chosen from aluminium trichloride claim 5 , zinc chloride claim 5 , zirconium tetrachloride claim 5 , hafnium tetrachloride claim 5 , ferrous chloride claim 5 , ferric chloride claim 5 , boron trichloride claim 5 , gallium trichloride claim 5 , cupric chloride claim 5 , cuprous chloride claim 5 , titanium tetrachloride claim 5 , cadmium trichloride claim 5 , cobalt dichloride claim 5 , tin dichloride claim 5 , tin tetrachloride claim 5 , antimony trichloride or mixtures thereof.7. The method according to claim 5 , in which the ammonium chloride or chlorides ...

Materials and process for enhancing selective separations

Use of a Maillard reaction product as an adjuvant in a variety of applications including solid-liquid separations, corrosion inhibition, emulsification, dust suppression, slow release fertilization, viscosity modification and others and especially as a depressant or collector in separation processes, including the selective separation of solids and/or ionic species from aqueous media, such as in the process of froth flotation.

Process for Recovering Precious Metals from Clay-Containing Ores

A solution for leaching metals from clay containing ore and a method of leaching ore is described. The solution comprises a cyanide; a wetting agent; and a clay stabilizing polymer. 126-. (canceled)27. A method for heap leaching of metals from clay containing ore comprising:forming a heap of ore on a leach bed; cyanide;', 'a wetting agent; and', 'a clay stabilizing polymer;, 'percolating a leach solution through said heap wherein said leach solution comprisesthereby forming a pregnant leach solution comprising said precious metal; andremoving said precious metal from said pregnant leach solution.28. The method for heap leaching of metals from clay containing ore of wherein said metal is selected from the group consisting of gold claim 27 , silver claim 27 , copper and uranium.29. The method for heap leaching of metals from clay containing ore of wherein said leach solution has a pH of at least 8 to no more than 11.30. The method for heap leaching of metals from clay containing ore of wherein said leach solution has a pH of at least 9.5 to no more than 10.5.31. The method for heap leaching of metals from clay containing ore of wherein said leach solution comprises at least 50 ppm cyanide to no more than 1000 ppm cyanide.32. The method for heap leaching of metals from clay containing ore of wherein said leach solution comprises at least 200 ppm cyanide to no more than 800 ppm cyanide.33. The method for heap leaching of metals from clay containing ore of wherein said clay stabilizing polymer is selected from the group consisting of polyalkylene oxide copolymer; propoxylated glycols; polyamine copolymer comprising dicyandiamide claim 27 , formaldehyde and ammonia; polyvinyl alcohol; partially hydrolyzed polyvinyl acetate; polyacrylamide; quaternary amines and particularly tetramethylammonium salts; carboxymethyl cellulose; methacrylate copolymers; hydroxyaldehydes; hydroxyketones; and copolymers of anionic or cationic monomers.34. The method for heap leaching of metals ...

SYSTEMS AND PROCESSES FOR RECOVERY OF HIGH-GRADE RARE EARTH CONCENTRATE FROM ACID MINE DRAINAGE

In one aspect, the disclosure relates to a continuous process for treating acid mine drainage while simultaneously recovering a high-grade rare earth preconcentrate suitable for extraction of commercially valuable rare earth oxides. In a further aspect, the preconcentrate is from about 0.1% to 5% rare earth elements on a dry weight basis. In another aspect, the disclosure relates to a method for processing the preconcentrate to generate a pregnant leach solution that does not form gels or emulsions and is suitable for processing via solvent extraction. In another aspect, the disclosure relates to a system and plant for carrying out the disclosed process. In still another aspect, the disclosure relates to a composition containing rare earth elements produced by the process disclosed herein. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. 2. The method of claim 1 , wherein the raw material is raw acid mine drainage (AMD) claim 1 , an AMD precipitate (AMDp) claim 1 , or an enriched AMD precipitate (eAMDp).3. The method of claim 1 , wherein contacting the raw material with the first base changes the pH of the aqueous phase to from about 4.0 to about 4.5.4. The method of claim 1 , wherein the first base comprises NaOH claim 1 , KOH claim 1 , ammonia claim 1 , ammonium hydroxide claim 1 , calcium pellets claim 1 , quicklime claim 1 , lime slurry claim 1 , or a combination thereof.5. The method of claim 1 , wherein contacting the aqueous phase with the second base changes the pH of the aqueous phase to from about 8.0 to about 8.5.6. The method of claim 1 , wherein the second base comprises NaOH claim 1 , KOH claim 1 , ammonia or an ammonium compound claim 1 , calcium pellets claim 1 , quicklime claim 1 , lime slurry claim 1 , or a combination thereof.7. The method of claim 1 , wherein the contacting the REE-enriched preconcentrate with the acid changes the pH of the ...

A method for re-extraction of rare-earth metals from organic solutions and preparing concentrate of rare-earth metals

The present invention relates to a method for recovery of rare earth metals (REM) from diluted aqueous acidic solutions comprising steps of liquid-phase extraction of REM into an organic phase and re-extraction of REM from the organic phase. The re-extraction is carried out by precipitation of REM as a solid phase in the form of a poorly soluble salt of a strong acid (pK<0). Recovery of REM into the concentrate is up to 99% in the course of one stage of the re-extraction. 1. A method for recovery of rare earth metals (REM) from diluted aqueous acidic solution comprising:liquid-phase extraction of REM into an organic phase and re-extraction of REM from the organic phase;{'sub': 'a', 'wherein the re-extraction is carried out by precipitation of REM as a solid phase in the form of a poorly soluble salt of a strong acid (pK<0).'}2. The method of claim 1 , wherein an extractant used as the organic phase is chosen from a group consisting of phosphine oxide in kerosene claim 1 , tributylphosphate in kerosene claim 1 , di-(2-ethylhexyl)phosphoric acid (DEHPA).3. The method of claim 1 , wherein the poorly soluble salt of REM is REM sulphates.4. The method of claim 1 , wherein the re-extraction of REM compounds is carried out with sulphuric acid claim 1 , a mixture of HSOwith HCl or HNO claim 1 , a mixture of M(HSO)with HSOand HCl or HNO claim 1 , where M is Na claim 1 , K claim 1 , Mg or REM atom.5. The method of claim 4 , wherein 30-70% aqueous solution of sulphuric acid is used for the re-extraction.6. The method of claim 1 , wherein the ratio between organic phase and aqueous phase is 500:1 to 1:2.7. The method of claim 2 , wherein the extractant after REM re-extraction is washed with calcium salt solution claim 2 , preferably with raffinate of REM extraction. This patent application is a national phase filing under section 371 of PCT/RU2013/000990, filed Nov. 8, 2013, which claims the priority of Russian patent application 2013109742, filed Mar. 5, 2013, each of which is ...

UTILIZATION OF TEMPERATURE HEAT ADSORPTION SKIN TEMPERATURE AS SCALE CONTROL REAGENT DRIVER

The invention provides methods, compositions, and apparatuses for preventing the formation of scale in heap leach process solution distribution systems comprised of piping, spray nozzels, or emitter tubes. Solution distribution system components often become fouled by scale because of local hot spots more prone to form scale than other locations along the systems length. Positioning sensors that detect periods of high temperature stress and adjusting scale control reagent dosage to send the right amount to inhibit hot spot deposition allows for the control of scale without using wasteful excessive amounts of scale control reagents. This can vastly improve scale control performance under high temperature stress conditions while minimizing scale control reagent waste under less severe stress conditions to reduce the total operating cost of running heap leach mining operations which depend upon well-functioning solution distribution systems. 1. A method of inhibiting the accumulation of scale on a surface in contact with a liquid medium , the method comprising the steps of:providing an solution distribution system comprising one or more of: piping, spray nozzles, emitter tubes, and any combination thereof having a length which defines more than one discrete region, each discrete region capable of having different surface temperatures,positioning at least one temperature sensor such that it is constructed and arranged to measure or predict the maximum surface temperature across all discrete regions within the solution distribution system,applying a scale control reagent to a specific location in the solution distribution system when the measured or predicted surface temperature at that location exceeds a threshold required to initiate inverse solubility scale formation, at a reagent dosage required to prevent scale formation.2. The method of in which emitter tubes are used to drip leaching solution onto a heap leach mining operation.3. The method of in which the ...

METHOD FOR DISSOLVING METALLOGENICALLY PRIMARY COPPER METALS OBTAINED FROM ORES AND/OR CHALCOPYRITE CONCENTRATES THAT CONTAIN SAME

The present invention relates to an autocatalytic reductive chemical procedure with solid-solid interaction in conditions of supersaturation of salts, via the phenomenon of efflorescence in order to dissolve a copper metal, from a metallogenically primary ore or chalcopyrite concentrate that contains same. The method comprises two steps, referred to as “Reductive Activation Step” and “Dry Autocatalytic Reductive Transformation Step” or efflorescence, which can be repeated as many times as necessary to maximise the extraction of copper or base metal of interest. The invention can also be used for sulphurised base metals such as nickel, zinc, cobalt, lead and molybdenum, among others, regardless of the common impurities of sulphurised ores, as occurs with the presence of arsenic. 1. A process for the solubilization of metals from minerals and/or concentrates of sulfide minerals of origin metallogenically primary which contain them , wherein the process comprises the following sequential and/or overlapping stages:(I) stage of Reductive Activation, which corresponds to a non-oxidative stage that includes contacting the mineral or mineral concentrate with chloride ions in acidic environment, and with recirculating solutions of the same process which contain or may contain chloride, ferrous iron and copper ions, always in an environment of low potential and minimum total moisture; and(II) stage of Autocatalytic Dry Reductive Transformation, solid-solid, where reductive conditions are enhanced by means of the efflorescence phenomenon, which promotes an oversaturated environment of chloride, ferrous iron and copper ions, causing the mineral or chalcopyrite concentrate to be reduced to mineralogical species which are solubilized by acid and chloride, this stage concludes with a washing with process solutions, which allows removing the products from the reaction.2. The process according to claim 1 , wherein in stage I ferrous iron is added so as to have an amount of 10 to 50 ...

EXTRACTION AGENT FOR PRECIOUS METALS AND RHENIUM, AND EXTRACTION METHOD FOR PRECIOUS METALS AND RHENIUM USING SAME

The present invention extracts precious metals from an acidic solution containing precious metals in an early and highly efficient manner. Provided is an extraction agent for precious metals that is represented by the general formula below. In the formula, R1 and R2 each represent the same alkyl group or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a discretionary group that is not an amino group and that bonds to α carbon as an amino acid. By subjecting an acidic solution containing precious metals to solvent extraction using the extraction agent for precious metals, a plurality of precious metals can be recovered all at once from a solution containing a large amount of various impurities. 2. The metal extraction agent according to claim 1 , wherein the amide derivative is any one or more of glycinamide derivatives claim 1 , histidinamide derivatives claim 1 , lysinamide derivatives claim 1 , aspartamide derivatives claim 1 , and N-methylglycine derivatives.3. An extraction method for metals claim 1 , the method comprising subjecting an acid solution containing one or more metals selected from precious metals and rhenium to solvent extraction with the metal extraction agent according to to extract the one or more metals selected from the precious metals and the rhenium from the acid solution.4. The extraction method for metals according to claim 3 , wherein the acid solution is subjected to the solvent extraction with the pH of the acid solution adjusted to 3.5 or lower.5. The extraction method for metals according to claim 3 , whereinthe acid solution contains the one or more metals selected from the precious metals and the rhenium and at least one or more of manganese, nickel, and/or cobalt, andthe acid solution is subjected to the solvent extraction with the pH of the acid solution adjusted to 2.5 or lower.6. A palladium separation method claim 3 , the method comprising:{'claim-ref': {'@idref': ' ...

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

Methods And Systems For Reducing Impurity Metal From A Refinery Electrolyte Solution

Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure represented by: wherein R 1 comprises a linear, branched or cyclic alkyl or aryl group, and wherein the impurity metal is selected from the group consisting of iron, antimony, arsenic, bismuth, tin and combinations thereof.

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other. 1. (canceled)2. A method of extracting a metal value comprising:providing a first metal-bearing solution to a first circuit of a solution extraction plant;providing a second metal-bearing solution to a second circuit of the solution extraction plant, wherein the first circuit comprises at least two first circuit extractors and at least one first circuit stripping unit, and wherein the second circuit comprises at least two second circuit extractors and at least one second circuit stripping unit, and wherein the first circuit and the second circuit are in fluid communication.3. The method of claim 2 , wherein the first metal-bearing solution is a pregnant leach solution comprising a higher concentration of metal than the second metal-bearing solution.4. The method of claim 2 , wherein a first portion of the first metal-bearing solution is provided to the first circuit claim 2 , a second portion of the first metal-bearing solution is provided to the second circuit claim 2 , and the second metal-bearing solution is provided to the second circuit.5. The method of claim 2 , wherein the first metal-bearing solution and the second metal-bearing solution comprise copper.6. The method of claim 2 , wherein the first circuit ...

Recovery of Metals from Ores

A process includes at least formulating an aqueous oxidizing solution by addition of ingredients to water, wherein the aqueous oxidizing solution has a pH of less than 0.7 primarily from at least one strong acid, at between 0.04% and 0.42% weight/volume of persulphate anions, and 0.03% to 0.1% weight/volume of hydrogen peroxide; an irradiation step wherein ozone is produced by irradiating oxygen with an ultraviolet source wherein the ozone is present in the solution at a concentration of 0.75 to 2 mg/L ozone; a metal solubilization step of oxidizing and thereby rendering soluble a desired at least one metal from a ground amount of ore in suspension; collecting a pregnant liquor from the suspension; and selectively removing at least a portion of the at least one metal from the liquor while at a pH of less than 3, such that any remaining liquid is a recyclable liquor. 1. An aqueous oxidizing solution comprising:a pH of less than 0.7;at least one strong acid;between 0.04% and 0.42% weight/volume of persulphate anions;0.03% to 0.1% weight/volume of hydrogen peroxide; andbetween 0.3 and 2 mg/L of ozone.2. The aqueous oxidizing solution of claim 1 , wherein the at least one strong acid is hydrochloric acid claim 1 , present in a concentration of between 1.0% and 3.4% weight/volume.3. The aqueous oxidizing solution of claim 1 , wherein the hydrogen peroxide is present in a concentration of between 0.048% and 0.06%.4. The aqueous oxidizing solution of claim 1 , further comprising up to 0.3% weight/volume of potassium persulphate.5. The aqueous oxidizing solution of claim 1 , further comprising up to 9.7 mM of halide ions in addition to any halide ions already introduced by the strong acid.6. The aqueous oxidizing solution of claim 1 , further comprising up to 9.7 mM of bromide ions sourced from sodium bromide or potassium bromide.7. The aqueous oxidizing solution of claim 1 , wherein the ozone is generated from exposure to ultraviolet light.8. The aqueous oxidizing solution ...

METHOD FOR RECOVERING GOLD FROM REFRACTORY ORE

A method of recovering gold from refractory ore containing a carbonaceous material, a sulfide and gold is provided. Gypsum seed crystals are added to a slurry containing a roasted refractory ore or a pressure-oxidized refractory ore to decrease gypsum encapsulation of gold and improve gold recovery. 1. A method of recovering gold from refractory ore comprising:heating refractory ore containing a sulfide and gold to form a hot ore;quenching the hot ore with an aqueous liquid containing a sulfate and calcium to form a hot liquid slurry;adjusting the pH of the hot liquid slurry to form a basic slurry;adding cyanide to the basic slurry to extract gold as a concentrated solution; andrecovering the gold from the concentrated solution, the improvement comprising:adding gypsum seed crystals after the heating step and before the cyanide addition step in an amount sufficient to decrease gypsum encapsulation of gold.2. The method of claim 1 , wherein the gypsum seed crystals are added before the quenching step.3. The method of claim 1 , wherein the gypsum seed crystals are added during the quenching step.4. The method of claim 1 , wherein the gypsum seed crystals are added after the quenching step.5. The method of claim 1 , wherein the gypsum seed crystals are added before the pH adjusting step.6. The method of claim 1 , wherein the gypsum seed crystals are added during the pH adjusting step.7. The method of claim 1 , wherein the gypsum seed crystals are added after the pH adjusting step.8. The method of claim 1 , wherein the refractory ore further contains a carbonaceous material.9. The method of claim 8 , wherein the carbonaceous material comprises elemental carbon or an organic carbon material.10. The method of claim 1 , wherein the sulfide comprises pyrite claim 1 , arsenian pyrite or arsenopyrite.11. The method of claim 1 , wherein the refractory ore is heated in an aqueous slurry and the hot ore is a hot ore slurry.12. The method of claim 1 , further comprising the step ...

METHOD AND PLANT FOR PROCESSING ROASTED PYRITES

The invention relates to a method and a recovery system for obtaining raw materials from ores and/or ore tailings, in particular a method and a recovery system for recovering metals from ores and/or ore tailings, especially a method and a recovery system for recovering metals from pyrite tailings, preferably from roasted pyrites produced during sulphuric acid manufacture. 115-. (canceled)16. A method for obtaining metals from ores or ore residues in the form of pyrite residues ,wherein the method comprises the following method steps (a) to (e) carried out in the order indicated hereinafter: (i) iron as main constituent and', '(ii) at least one noble metal selected from the group consisting of gold, silver and their combinations or mixtures, and', '(iii) at least one further metal selected from the group consisting of copper, zinc, lead, cobalt, titanium, manganese, vanadium, chromium and their combinations or mixtures;, '(a) providing and processing of a starting material in the form of at least one ore or ore residue, wherein the starting material comprises(b) an oxidation treatment comprising the step of calcining or oxidative roasting of the starting material provided in method step (a), using at least one oxidizing agent to give iron oxide and oxides of the further metals;(c) a chlorination of the oxidation products obtained in method step (b) by using at least one chlorinating agent, the chlorination comprising the chlorination of the iron oxide and of the oxides of the further metals to give iron chloride and chlorides of the further metals;(d) removing of the iron chloride and of the chlorides of the further metals obtained in method step (c) from the product mixture obtained in method step (c);(e) removing of the noble metal(s) from the product mixture obtained in method step (d);wherein in method step (c) the chlorination is carried out as a solid phase reaction and wherein in method step (c) a recyclable chlorinating agent is used, wherein the recyclable ...

Treated Geothermal Brine Compositions With Reduced Concentrations of Silica, Iron and Manganese

This invention relates to treated geothermal brine compositions containing reduced concentrations of iron, silica, and manganese compared to the untreated brines. Exemplary compositions contain a concentration of manganese less than 10 mg/kg, a concentration of silica ranging from less than 10 mg/kg, and a concentration of iron less than 10 mg/kg, and the treated geothermal brine is derived from a Salton Sea geothermal reservoir. 1. A treated geothermal brine composition , the composition comprising a treated geothermal brine having a concentration of manganese ranging from 0 to 200 mg/kg , a concentration of silica ranging from 0 to 80 mg/kg , and a concentration of iron ranging from 0 to 300 mg/kg.2. The treated geothermal brine composition of claim 1 , wherein the concentration of manganese ranges from 0 to 200 mg/kg claim 1 , the concentration of silica ranges from 0 to 30 mg/kg claim 1 , and the concentration of iron ranges from 0 to 300 mg/kg.3. The treated geothermal brine composition of claim 1 , wherein the concentration of manganese is less than about 100 mg/kg claim 1 , the concentration of silica is less than about 30 mg/kg claim 1 , and the concentration of iron is less than about 300 mg/kg.4. The treated geothermal brine composition of claim 1 , wherein the concentration of manganese is less than about 50 mg/kg claim 1 , the concentration of silica is less than about 30 mg/kg claim 1 , and the concentration of iron is less than about 300 mg/kg.5. The treated geothermal brine composition of claim 1 , wherein the concentration of manganese is less than about 30 mg/kg claim 1 , the concentration of silica is less than about 30 mg/kg claim 1 , and the concentration of iron is less than about 300 mg/kg.6. The treated geothermal brine composition of claim 1 , wherein the concentration of manganese is less than about 30 mg/kg claim 1 , the concentration of silica is less than about 30 mg/kg claim 1 , and the concentration of iron is less than about 200 mg/kg. ...

Selective extraction film for mining application

The present invention is related to a polymer membrane for the selective extraction of cobalt (II) ions as well as a method for extracting cobalt (II) ions using said polymer membrane.

METHODS OF COPPER EXTRACTION

The hydrometallurgical copper extraction processes of the present teachings generally including two steps: a conditioning or activating step using low concentrations of ammonia and ammonium in an aqueous solution; and an acid leaching step. The processes of the present teachings can be performed at low temperature, for example, at ambient temperature, and at atmospheric pressure. 1. A method of extracting copper from a copper ore or a copper concentrate , the method comprising:contacting a copper ore or a copper concentrate with an aqueous solution comprising ammonia and ammonium in the presence of an oxygen gas-containing fluid to provide a solid activated copper ore or a solid activated copper concentrate, wherein the aqueous solution has a pH between about 8 to 9.5; andleaching the solid activated copper ore or the solid activated copper concentrate with an acid to provide a pregnant leaching solution.2. The method of claim 1 , further comprising recovering copper from the pregnant leaching solution.3. (canceled)4. The method of claim 1 , wherein the ammonium is derived from one or more of ammonium carbonate claim 1 , ammonium chloride claim 1 , ammonium hydroxide claim 1 , ammonium nitrate claim 1 , and ammonium sulfate.5. The method of claim 1 , wherein the ammonia is derived in situ from the ammonium.6. The method of claim 1 , wherein the contacting step is carried out at atmospheric pressure.7. The method of claim 1 , wherein the contacting step is carried out at a temperature ranging from ambient temperature to about 90° C.8. The method of claim 1 , wherein the oxygen gas-containing fluid comprises air.9. (canceled)10. The method of claim 1 , wherein the copper ore or cooper concentrate comprises chalcopyrite.1120.-. (canceled) This application claims priority to and the benefit of U.S. Provisional Patent Application No. 62/009,017, filed on Jun. 6, 2014, the entire contents of which are incorporated by reference herein.The present teachings relate to copper ...

METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS

The present disclosure relates to a method for extracting lithium from a lithium-containing material. For example, the method can comprise leaching a roasted lithium-containing material under conditions suitable to obtain an aqueous composition comprising a lithium compound such as lithium sulfate and/or lithium bisulfate. The aqueous composition comprising lithium sulfate and/or lithium bisulfate can optionally be used, for example, in a method for preparing lithium hydroxide comprising an electromembrane process. The roasted lithium-containing material can be prepared, for example by a method which uses an aqueous composition comprising optionally lithium sulfate and/or lithium bisulfate which can be obtained from a method for preparing lithium hydroxide comprising an electromembrane process such as a two-compartment monopolar or bipolar electrolysis process. 1. A method for preparing lithium hydroxide , said method comprising:submitting a first aqueous composition comprising lithium sulfate to an electromembrane process under suitable conditions for at least partial conversion of said lithium sulfate into lithium hydroxide and to obtain a second aqueous composition comprising lithium sulfate; andoptionally increasing concentration of acid in said second aqueous composition; andusing said second aqueous composition comprising lithium sulfate for reacting with a lithium-containing material.2. The method of claim 1 , wherein said method further comprises recovering lithium sulfate from said second aqueous composition and reusing said lithium sulfate in said electromembrane process.3. The method of claim 1 , wherein said method further comprises at least partially recovering lithium sulfate from said second aqueous composition claim 1 , before using said second aqueous composition for reacting with said lithium-containing material claim 1 , and reusing said lithium sulfate in said electromembrane process.4. A method for preparing lithium hydroxide claim 1 , said ...

A SYSTEM AND METHOD FOR SEPARATION AND PURIFICATION OF DISSOLVED RARE EARTH/PRECIOUS METALS ELEMENTS/COMPOUNDS

A method for purification and separation of mixed elements, comprising at least a first free flow electrophoresis separation chamber, wherein a solution of the mixed elements is passed through the first separation chamber, an electric field submitted perpendicular to the solution flow and separating mobile ions of the solution based on electrophoretic mobility. A continuous method comprises selecting a complexing ligand, and controlling the temperature and pH of the solution. Also, a system or method for separating components of a multi-component concentrate comprising directing solution to at least a first and second channel each receiving part of the solution; each channel comprising a concentration section comprising a first transverse electric field across the channel, a fractionation section comprising a second electric field in a direction opposite the first electric field thereby distributing ions of the solution across the channel, and a flow splitter at an output of the fractionation section that divides the flow of each channel into subflows concentrated in heavier elements and concentrated in lighter elements. 1. A method of purification and separation of mixed elements , using differences between electrophoresis mobility of the elements or coordination complexes thereof in a continuous process , comprising:selecting a complexing ligand and forming a solution of the complexing ligand and the mixed elements;controlling the temperature and pH of the solution; andsubmitting a flow of the solution to an electric field submitted perpendicular to the solution.2. The method of claim 1 , wherein said selecting the complexing ligand comprises selecting the complexing ligand with a concentration in a range between 1 μmol/L and 1 mol/L.3. The method of claim 1 , comprising controlling a flow ratio between the mixed elements and the complexing ligand in a range between 1/100 and 1/3.4. The method of claim 1 , comprising controlling a flow ratio between the mixed ...

Hydrometallurgical process and method for recovering metals

A mineral processing facility is provided that includes a cogen plant to provide electrical energy and waste heat to the facility and an electrochemical acid generation plant to generate, from a salt, a mineral acid for use in recovering valuable metals. 115-. (canceled)16. A facility , comprising:a mill to at least one of comminute a feed material comprising a valuable metal-containing mineral and form, from the valuable metal-containing mineral, a concentrate containing the valuable metal-containing mineral;a process plant to recover the valuable metal from the valuable metal-containing mineral, wherein at least one of the mill and process plant generate a byproduct salt solution from a mineral acid and a base; andan electrochemical acid generation plant comprising at least one of a chloralkali and bipolar membrane electrodialysis cell to generate the mineral acid and base from the byproduct salt solution and provide the mineral acid to at least one of the mill and process plant.17. The facility of claim 16 , wherein the valuable metal is a rare earth claim 16 , wherein the acid component is hydrochloric acid claim 16 , wherein the salt in the byproduct salt solution is one or more of sodium chloride and potassium chloride claim 16 , wherein the base is one or more of sodium hydroxide and potassium hydroxide claim 16 , and wherein the valuable metal product is a rare earth oxide.18. The facility of claim 16 , wherein the at least one of a chloralkali and bipolar membrane electrodialysis cell is the bipolar membrane electrodialysis cell claim 16 , wherein the valuable metal is one or more of copper claim 16 , beryllium claim 16 , nickel claim 16 , iron claim 16 , lead claim 16 , molybdenum claim 16 , and manganese claim 16 , wherein the acid component is nitric acid claim 16 , wherein the salt in the byproduct salt solution is one or more of sodium nitrate and potassium nitrate claim 16 , and wherein the base is one or more of sodium and potassium hydroxide.19. The ...

TREATMENT PROCESS FOR RECOVERY AND SEPARATION OF ELEMENTS FROM LIQUORS

This invention provides a hydrometallurgical process for extracting one or more saleable products from a sulphate or chloride pregnant leach solution (PLS), or both. The products may be any one or more of the products selected from the group consisting of: precious metals including platinum group metals (PGMs), gold and silver, base metals, and rare metal elements, and metal cathodes, powders, salts or precipitates thereof; sulphur; hydrochloric acid (HCl); calcium; and silica. 1. A hydrometallurgical process for extracting one or more saleable products selected from the group consisting of:(a) precious metals (PMs) comprising platinum group metals (PGMs), gold, or silver; base metals;(b) rare metal elements;(c) metal cathodes, powders, salts or precipitates thereof;(d) sulfur;(e) hydrochloric acid (HCl);(f) calcium; and (i) providing to a reaction vessel the chloride or sulfate PLS;', '(ii) optionally, sorption of the chloride or sulfate PLS to a resin or sorbent to produce one or more solid residues whereby PMs are adsorbed and base metals are discharged in a solution;', (A) a solution comprising one or a combination of salts or acids of sulfide, hydrogen sulfide, thiosulfate, metabisulfite or sulfite, or', '(B) a gas comprising sulfur dioxide or hydrogen sulfide,', 'to produce a product slurry of a solid residue comprising elemental sulfur, metal sulfides and/or alloys and a discharge solution;, '(iii) subjecting the chloride PLS of step (i) and the chloride discharge solution from step (ii) to a reduction and sulfide precipitation step by addition of'}, '(iv) performing solid-liquid separation of the solid residue from step (iii) from the discharge solution by a solid-liquid separation means, at temperatures of between about 10 and 130° C.; and', (A) a sulfur removal step comprising sublimation of the solid residue at temperatures of between about 200 and 500° C., to produce a solid residue and a sulfur sublimate product;', '(B) optionally subjecting the solid ...

PROCESS OF ISOLATING RARE EARTH ELEMENTS

A process of isolating a REE or a group of REE from a solution or dispersion containing said REE or said group of REEs comprising the following steps: (i) preparing a mixture comprising said solution or dispersion and biomass comprising at least one organism selected from any one of the following organism classes: eubacteria, archaea, algae, and fungi, whereby the at least one organism is capable of adsorbing or accumulating said REE or said group of REEs; (ii) incubating said mixture of step (i) for allowing the adsorption or accumulation of said REE or said group of REEs by said biomass; (iii) separating the biomass having adsorbed or accumulated REE(s) from the mixture of step (ii); and (iv) isolating said REE or said group of REEs from said biomass separated in step (iii). 1. A process of isolating or enriching the rare earth clement (REE) scandium from a solution or dispersion containing said REE , comprising the following steps:(i) preparing a mixture comprising said solution or dispersion and biomass comprising at least one organism selected from any one of the following organism classes: eubacteria, archaea, algae, and fungi, whereby the at least one organism is capable of adsorbing or accumulating said REE;(ii) incubating said mixture of step (i) for allowing the adsorption or accumulation of said REE by said biomass;(iii) separating the biomass having adsorbed or accumulated REE(s) from the mixture of step (ii); and(iv) isolating said REE from said biomass separated in step (iii).2. The process according to claim 1 , wherein said solution or dispersion is obtained by treating a source material of said REE claim 1 , such as a mineral ore claim 1 , a mineral mining waste material claim 1 , or an electronic or metal scrap claim 1 , by an extraction or solubilizing agent claim 1 , such as an aqueous acid.3. A process of isolating or enriching the rare earth element (REE) scandium from a particulate material claim 1 , comprising the following steps:(i) ...

SOLVENT EXTRACTION PROCESS FOR SEPARATING COBALT FROM NICKEL IN AQUEOUS SOLUTION

A process for separating Co from Ni in an aqueous solution comprises subjecting the solution to extraction and using kinetic differences between Ni and Co in the extraction for achieving at least a partial separation of Co from Ni. This is effected by controlling the duration of the extraction so that a major portion of Co and a minor portion of Ni is extracted from the solution to produce a loaded extractant, enriched in Co and depleted in Ni compared to the feed solution, and a Co-depleted raffinate containing Ni. In a further embodiment, the invention utilizes kinetic differences between Ni and Co during striping for effecting separation of Ni and Co. The loaded extractant can be subjected to a bulk stripping or a selective stripping operation to obtain Co and Ni solutions from which Ni and Co can be recovered. The process may be incorporated in a hydrometallurgical process for the extraction of Ni and/or Co from an ore or concentrate containing Ni and Co. 1. A process for separating and recovering Co from Ni in an aqueous feed solution comprising sulphates , comprising:subjecting the feed solution comprising the sulphates and containing Ni and Co and impurities comprising Mg and Mn to extraction with an extractant and using kinetic differences between Ni and Co in the extraction by controlling duration of the extraction, thereby separating the Co from the Ni, and from the Mg and the Mn, whereby a major portion of Co and a minor portion of Ni is extracted from the feed solution to produce a loaded extractant and a Co-depleted raffinate containing Ni wherein the loaded extractant is enriched in Co and depleted in Ni compared to the feed solution, wherein the concentration of Ni in the feed solution is greater than the concentration of Co, and wherein the duration of extraction is about 30 to 240 seconds, wherein the molar ratio of (Mg+Mn):Co in the feed solution is at least 6:1.2. The process of claim 1 , wherein the feed solution is acidic.3. The process of claim ...

METHODS FOR THE RECOVERY OF RARE EARTH ELEMENTS

Provided herein are methods recovering rare earth elements (REEs) from a solution containing one or more REEs. These methods can comprise contacting an aqueous solution comprising one or more rare earth elements (REEs) with a solid sequestration media (e.g., a stabilized flue gas desulfurization (sFGD) material, or a sludge by-product from a water treatment process) to provide a REE-containing solid feedstock; and contacting the solid feedstock with an extraction solution to generate a rare earth element (REE) solution. 1. A method comprising:contacting an aqueous solution comprising one or more rare earth elements (REEs) with a solid sequestration media to provide an REE-containing solid feedstock; andcontacting the solid feedstock with an extraction solution to generate a rare earth element (REE) solution.2. The method of claim 1 , wherein the aqueous solution comprises acid mine drainage (AMD).3. The method of any of - claim 1 , wherein contacting the aqueous solution with the solid sequestration media comprises flowing the aqueous solution through a fixed bed comprising the solid sequestration media.4. The method of claim 3 , wherein the method further comprises constructing a fixed bed comprising the solid sequestration media in proximity to a mine emitting AMD claim 3 , and fluidly connecting the fixed bed to the mine such that AMD emitted from the mine flows through the fixed bed.5. The method of any of - claim 3 , wherein the extraction solution comprises a chelating agent and a reducing agent.6. The method of claim 5 , wherein the chelating agent comprises a polydentate carboxylate ligand such as citrate.7. The method of any of - claim 5 , wherein the reducing agent comprises a dithionite.8. The method of any of - claim 5 , wherein the method further comprises concentrating the REE solution.9. The method of any of - claim 5 , wherein the method further comprises separating the REEs from the REE solution to form a rare earth oxide (REO) feedstock.10. The ...

SOLVENT EXTRACTION SETTLER ARRANGEMENT

A solvent extraction settler arrangement comprising a mixing unit for preparing a dispersion from mutually immiscible solutions and a settler having a feed end and a discharge end. The settler is arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows towards the discharge end. The arrangement further comprises a feeding device located at the feed end for feeding the dispersion prepared by the mixing unit to the settler. The feeding device comprises an elongated feed launder having a first end for receiving the dispersion from the mixing unit, and a second end. The feed launder extends alongside the feed end of the settler. The feed launder has a form of a conical tube with a cross-section converging towards the second end and an inclined bottom ascending towards the second end. A plurality of feed pipes are arranged along the length of the feed launder at a distance from each other, each feed pipe having a third end opening to the inner space of the feed launder at the bottom to receive the dispersion from the feed launder and a fourth end opening to the settler to conduct the dispersion to the settler. 1. A solvent extraction settler arrangement adapted for hydrometallurgical liquid-liquid extraction processes , the settler arrangement comprisinga mixing unit for preparing a dispersion from mutually immiscible solutions,a settler having a feed end and a discharge end, said settler being arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows towards the discharge end, an elongated feed launder having a first end for receiving the dispersion from the mixing unit, and a second end, said feed launder extending alongside the feed end of the settler, the feed launder having a form of a conical tube with a cross-section converging towards the second end and an inclined bottom ascending towards the second end, and', 'a plurality of feed pipes arranged along the length of the ...

Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

BIOLEACHING METHOD AND FACILITY

A method for the lagoon-based bioleaching of a metallic ore, wherein the temperature of the suspension containing the metallic ore to be bioleached, a bioleaching consortium and a nutritive substrate of the microorganisms of the consortium is controlled by regulating the flows and the composition of a gas containing oxygen and optionally also CO2 injected into the suspension, the temperature of the suspension being controlled such that it can be maintained within a pre-determined range suitable for bioleaching. 115-. (canceled)16. Method for bioleaching of a metalliferous ore , said method comprising the following steps:a) adding, into a basin, a ground metalliferous ore, a medium comprising a bioleaching microbial consortium, and a nutritive medium for the microorganisms of the microbial consortium,b) obtaining a suspension in the basin via at least one stirring system for placing and maintaining the metalliferous ore in suspension in a liquid phase,c) injecting, into the suspension, a gas containing oxygen and optionally carbon dioxide,d) in the suspension, bioleaching of the metalliferous ore by the microbial consortium in order to obtain a released metal,e) recovering a liquid product containing the released metal and consisting of (a) a liquor and (b) a solid residue,wherein the temperature of the suspension is controlled by regulating the flow rates and the composition of the gas injected, as well as optionally the concentration of solids in the suspension, the temperature of the suspension being controlled in such a way as to be maintained in a predetermined range suitable for bioleaching.17. Method according to claim 16 , wherein the basin is an open-air basin.18. Method according to claim 16 , wherein the gas injected has an Oconcentration of at least 21% vol O claim 16 , preferably at least 40% vol and more preferably 50% vol to 100% vol claim 16 , and optionally a COconcentration from 0% vol to 5% vol claim 16 , preferably from 1% vol to 3% vol. ...

Method for lithium processing

A method for improved processing of lithium metallurgical solutions comprises the steps of: i. Directing a lithium leach solution containing magnesium to an electrochemical magnesium removal step to form a magnesium depleted lithium leach solution; ii. Directing the magnesium depleted lithium leach solution of step i) to downstream concentration and recovery processes wherein the electrochemical magnesium removal step is a 3-chamber electrochemical configuration to produce magnesium hydroxide precipitate and a separate hydrochloric acid stream, as recoverable by-products.

SYSTEMS AND PROCESSES FOR RECOVERY OF HIGH-GRADE RARE EARTH CONCENTRATE FROM ACID MINE DRAINAGE

In one aspect, the disclosure relates to a continuous process for treating acid mine drainage while simultaneously recovering a high-grade rare earth preconcentrate suitable for extraction of commercially valuable rare earth oxides. In a further aspect, the preconcentrate is from about 0.1% to 5% rare earth elements on a dry weight basis. In another aspect, the disclosure relates to a method for processing the preconcentrate to generate a pregnant leach solution that does not form gels or emulsions and is suitable for processing via solvent extraction. In another aspect, the disclosure relates to a system and plant for carrying out the disclosed process. In still another aspect, the disclosure relates to a composition containing rare earth elements produced by the process disclosed herein. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. 119-. (canceled)20. A composition comprising a pregnant leach solution (PLS) made by the method comprising the following steps:a. contacting a raw material containing REEs with a first base to form waste solids and an aqueous phase and discarding the waste solids;b. contacting the aqueous phase with a second base to form an REE-enriched preconcentrate and an effluent and discharging the effluent;c. contacting the REE-enriched preconcentrate with an acid to form an acidic preconcentrate;d. filtering the acidic preconcentrate to form an acidic filtrate; ande. contacting the acidic filtrate with a third base and filtering to form a pregnant leach solution;wherein the pregnant leach solution is enriched in REEs and essentially free of solids.21. The composition of claim 20 , wherein the raw material is raw acid mine drainage (AMD) claim 20 , an AMD precipitate (AMDp) claim 20 , or an enriched AMD precipitate (eAMDp).22. The composition of claim 20 , wherein contacting the raw material with the first base changes the pH of the ...

HYDROMETALLURGICAL PROCESS AND METHOD FOR RECOVERING METALS

A mineral processing facility is provided that includes a cogen plant to provide electrical energy and waste heat to the facility and an electrochemical acid generation plant to generate, from a salt, a mineral acid for use in recovering valuable metals. 1. A process , comprising:(a) contacting a valuable metal-containing material with an acidic leaching solution to form a pregnant leach solution comprising a dissolved valuable metal;(b) recovering the dissolved valuable metal to form a valuable metal product and a byproduct salt solution derived from reaction of an acid component of the leaching solution with a base;(c) converting, by at least one of a chloralkali and bipolar membrane electrodialysis cell, the byproduct salt solution into the acid component and the base;(d) recycling the acid component, as part of the acidic leaching solution, to step (a); and(e) recycling the base to at least one of steps (a) and (b).2. The process of claim 1 , wherein at least most of the byproduct salt solution is converted into the acid component and base and wherein at least most of the acid component and base are recycled.3. The process of claim 1 , wherein the valuable metal is a rare earth claim 1 , wherein the acid component is hydrochloric acid claim 1 , wherein the salt in the byproduct salt solution is one or more of sodium chloride and potassium chloride claim 1 , wherein the base is one or more of sodium hydroxide and potassium hydroxide claim 1 , and wherein the valuable metal product is a rare earth oxide.4. The process of claim 1 , wherein the at least one of a chloralkali and bipolar membrane electrodialysis cell is the bipolar membrane electrodialysis cell claim 1 , wherein the valuable metal is one or more of copper claim 1 , beryllium claim 1 , nickel claim 1 , iron claim 1 , lead claim 1 , molybdenum claim 1 , and manganese claim 1 , wherein the acid component is nitric acid claim 1 , wherein the salt in the byproduct salt solution is one or more of sodium ...

Process for Recovering Precious Metals from Clay-Containing Ores

A solution for leaching metals from clay containing ore and a method of leaching ore is described. The solution comprises a cyanide; a wetting agent; and a clay stabilizing polymer. 1. A solution for leaching metals from clay containing ore comprising:cyanide;a wetting agent; anda clay stabilizing polymer.2. The solution for leaching metals from clay containing ore of wherein said metal is selected from the group consisting of gold claim 1 , silver claim 1 , copper and uranium.3. The solution for leaching metals from clay containing ore of with a pH of at least 8 to no more than 11.4. The solution for leaching metals from clay containing ore of with a pH of at least 9.5 to no more than 10.5.5. The solution for leaching metals from clay containing ore of comprising at least 50 ppm cyanide to no more than 1000 ppm cyanide.6. The solution for leaching metals from clay containing ore of comprising at least 200 ppm cyanide to no more than 800 ppm cyanide.7. The solution for leaching metals from clay containing ore of wherein said clay stabilizing polymer is selected from the group consisting of polyalkylene oxide copolymer; propoxylated glycols; polyamine copolymers comprising dicyandiamide claim 1 , formaldehyde and ammonia; polyvinyl alcohol; partially hydrolyzed polyvinyl acetate; polyacrylamide; quaternary amines and particularly tetramethylammonium salts; carboxymethyl cellulose; methacrylate copolymers; hydroxyaldehydes; hydroxyketones; and copolymers of anionic or cationic monomers.8. The solution for leaching metals from clay containing ore of wherein said clay stabilizing polymer is selected from the group consisting ofa polyalkylene oxide copolymer, a propoxylated glycol and a polyamine copolymer.9. The solution for leaching metals from clay containing ore of wherein said polyalkylene oxide copolymer is defined by:{'br': None, 'sup': 1', '2', '3', '4', '5, 'R—R—R—R—R'}wherein:{'sup': 1', '5', '6', '6, 'Rand Rare terminal groups independently selected from the ...

Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

Process for the selective removal of molybdenum from a solution containing it

The present invention relates to a process for selectively removing molybdenum from a solution which contains molybdenum, said process comprising the following steps: bringing the solution to an acid pH lower than or equal to 3, preferably lower than or equal to 2, even more preferably lower than or equal to 0.5, by the addition of an inorganic acid; adding at least one organic solvent, preferably toluene or xylene, to the solution and stirring continuously so as to create a water-organic emulsion; adding to the water-organic emulsion at least one alkaline metal xanthate having the general formula MeRX, wherein R is a linear or branched alkyl group having a number of carbon atoms higher than or equal to 2, Me is an alkaline metal selected from Li, Na, K, Rb, Cs and Fr, and X is the xanthate group, so as to form a complex with molybdenum wherein the molar ratio molybdenum/alkaline metal xanthate ranges from 1/6 to 1/2, keeping the emulsion at an acid pH by the addition of an inorganic acid, and interrupting the stirring so as to allow the separation of the aqueous phase from the organic phase. The linear or branched alkyl group R preferably has a number of carbon atoms higher than or equal to 2 and lower than or equal to 12. A reductant is optionally added to the starting solution which comprises Mo and V.

METHOD AND PROCESS FOR THE ENHANCED LEACHING OF COPPER SULFIDE MINERALS CONTAINING CHALCOPYRITE

A method of leaching a copper bearing sulfide mineral slurry containing chalcopyrite is described. The method comprises the steps of providing a slurry having chalcopyrite particles therein, exposing the slurry to an acidic leach solution, and chemically leaching copper from the slurry into the acidic leach solution in the presence of microwave irradiation. The microwave irradiation of the slurry takes place under process conditions whereby crystalline pyrite may be formed in-situ on surfaces of the chalcopyrite particles. Crystalline pyrite may be formed on surfaces of the chalcopyrite particles from amorphous phase pyrite. Leached copper is recovered from said acidic leach solution. A device for more efficiently leaching a copper bearing sulfide mineral slurry containing chalcopyrite is also described herein. 1. A method of leaching a copper-bearing sulfide mineral slurry , comprising the steps of:(a) providing a slurry having copper sulfide particles therein;(b) exposing the slurry to an acidic leach solution;(c) chemically leaching copper from the slurry into the acidic leach solution in the presence of microwave irradiation, under conditions whereby crystalline pyrite can be formed in-situ, on surfaces of the copper sulfide particles;(d) generating microwaves at a predetermined frequency or intensity that is configured for forming crystalline pyrite on surfaces of the copper sulfide particles in-situ; and(d) recovering leached copper from said acidic leach solution.2. The method of claim 1 , wherein step (c) is further performed under conditions whereby elemental sulfur (which may form surface passivation layer(s) on the copper sulfide particles as a result of exposure to the acidic leach solution) claim 1 , is prevented from entering a plasma phase.3. The method of claim 2 , further comprising forming crystalline pyrite on surfaces of the copper sulfide particles in-situ and/or converting amorphous pyrite to crystalline pyrite.4. The method of claim 1 , ...

Method for recovering precious metal

A method for recovering at least one precious metal from an aqueous solution containing the metal and particularly to recovery of silver and optionally one or more other precious metals from overflow of a sedimentation unit such as a thickener, a clarifier or a pond includes subjecting the aqueous solution to a micro and/or nanobubble flotation, wherein the pH of the aqueous solution is at most 1.5.

MOLECULARLY IMPRINTED POLYMER BEADS FOR EXTRACTION OF METALS AND USES THEREOF

The present disclosure provides Molecularly Imprinted Polymer (MIP) technology for selectively sequestering one or more target molecules from chemical mixtures. Also disclosed herein are MIP beads and methods of making and using thereof. 130-. (canceled)31. A method of selectively sequestering one or more target metal ions from a solution of the one or more target metal ion ions admixed with other ions , comprising first contacting a plurality of macroreticular polymer beads with a stripping solution , whereby the non-metal surrogate ions are removed from the macroreticular polymer beads , then contacting the stripped beads with the solution of the one or more target metal ion ions admixed with other ions , thereby selectively sequestering the target metal ion in the macroreticular polymer beads ,wherein the macroreticular polymer beads comprise a copolymer having a plurality of complexing cavities which selectively bind the target metal ion, wherein the copolymer is prepared from:(a) a ligand monomer which is a 4-vinylbenzyl ammonium compound and is complexed to a non-metal surrogate ion,(b) a non-ligand monomer; and(c) a crosslinking monomer;wherein:(i) the charge of the copolymer in the complexing cavity is opposite the charge of the target metal ion, and(ii) the non-metal surrogate ion has substantially the same shape and charge as the target metal ion.32. The method of claim 31 , wherein the non-metal surrogate ion is selected from the group consisting of thiocyanate claim 31 , pentathionate claim 31 , isophthalate claim 31 , and succinate.33. The method of claim 31 , wherein the ligand monomer is a N claim 31 ,N claim 31 ,N-tri-Calkyl-N-(4-vinylbenzyl) ammonium compound.34. The method of claim 33 , wherein the ligand monomer is a N claim 33 ,N claim 33 ,N-tri-Calkyl-N-(4-vinylbenzyl) ammonium compound.35. The method of claim 31 , wherein the non-ligand monomer selected from the group consisting of methyl methacrylate claim 31 , styrene and mixtures thereof.36. ...

DNA COMPLEX, ADSORBENT, ADSORPTION COLUMN, PURIFICATION SYSTEM, LIQUID TREATMENT METHOD, AND METHOD FOR PRODUCING DNA COMPLEX

A DNA complex includes a carrier and DNA immobilized on the carrier. 80% or more by mass of the DNA is single-stranded DNA, the DNA has an average molecular weight of 500,000 or less, and the DNA content is more than 15% by mass and 50% or less by mass of the DNA complex. The carrier contains an inorganic material. The DNA complex has an average particle size of 10 μm or more. 1. A DNA complex comprising: a carrier; and DNA immobilized on the carrier ,wherein 80% or more by mass of the DNA is single-stranded DNA,the DNA has an average molecular weight of 500,000 or less,the carrier contains an inorganic material,the DNA complex has an average particle size of 10 μm or more, andthe DNA content is more than 15% by mass and 50% or less by mass of the DNA complex.2. A DNA complex comprising: a carrier; and DNA immobilized on the carrier ,wherein 80% or more by mass of the DNA is single-stranded DNA,the DNA has an average molecular weight of 500,000 or less, andthe carrier is a porous body.3. The DNA complex according to claim 1 , wherein the carrier contains at least one selected from the group consisting of metal oxides claim 1 , layered metal hydroxides claim 1 , activated carbon claim 1 , and zeolite.4. A DNA complex comprising: a carrier; and DNA immobilized on the carrier claim 1 ,wherein 80% or more by mass of the DNA is single-stranded DNA, andthe carrier contains a layered metal hydroxide.5. The DNA complex according to claim 1 , wherein the carrier is an aggregate of primary particles.6. The DNA complex according to claim 5 , wherein the primary particles have an average particle size in the range of 1 to 25 nm.7. The DNA complex according to claim 1 , wherein the carrier contains silica.8. The DNA complex according to claim 5 , wherein the primary particles are cross-linked through a bond including a siloxane bond.9. The DNA complex according to claim 2 , wherein the DNA complex has an average particle size of 10 μm or more.10. The DNA complex according to ...

AUTOCLAVE AND METHOD FOR REMOVING SALT FROM AUTOCLAVE

A vertical autoclave according to an embodiment of the present disclosure is a vertical autoclave including an inlet port through which a process solution is introduced, an outlet port configured through which the process solution is discharged, an oxygen inlet port through which oxygen is supplied to the process solution, an agitator configured to mix the process solution, an inner wall, an acid-resistant brick layer lined on a lower portion and a side portion of the inner wall, and an acid-resistant metal layer lined on an upper portion of the inner wall. 1. A vertical autoclave comprising an inlet port through which a process solution is introduced , an outlet port through which the process solution is discharged , an oxygen inlet port through which oxygen is supplied to the process solution , an agitator configured to mix the process solution , an inner wall , an acid-resistant brick layer lined on a lower portion and a side portion of the inner wall , and an acid-resistant metal layer lined on an upper portion of the inner wall.2. The vertical autoclave of claim 1 , wherein the vertical autoclave has an inner diameter of 5.5 m or more.3. The vertical autoclave of claim 1 , wherein the vertical autoclave has an inner volume of 150 mor more.4. The vertical autoclave of claim 1 , wherein a volume of the process solution is 100 mor more when the vertical autoclave is operated.5. The vertical autoclave of claim 1 , further comprising a cap ring which covers an upper portion of the acid-resistant brick layer on the side portion of the inner wall.6. The vertical autoclave of claim 5 , further comprising a membrane layer provided between the inner wall and the acid-resistant brick layer claim 5 ,wherein the membrane layer is provided to extend between the upper portion of the acid-resistant brick layer and the cap ring.7. The vertical autoclave of claim 5 , further comprising a plurality of ribs which connect the cap ring and the acid-resistant metal layer.8. The ...

Compositions and Methods for Removing Heavy Metals from Contaminated Materials

Metal-binding proteins, such as metallothionein proteins, are disclosed for removing metals from substrates in need of having such metals removed therefrom. Specifically, metallothionein proteins according to SEQ ID NO:1, 2, or 9-20 are disclosed for removing metals from liquid substrates. Associated methods for removing metals from substrates using metallothionein proteins are also disclosed. 1. A recombinant chimeric metallothionein (MT) protein having a sequence at least 90% identical to full-length SEQ ID NO:1.2. A device for removing heavy metals from a substrate comprising:a regenerative metal-binding material comprising a MT protein having a sequence at least 90% identical to one of SEQ ID Nos. 1, 2, and 9-20;wherein the regenerative metal-binding material binds heavy metals thereby removing the heavy metals from a substrate; andwherein the binding of heavy metal to the regenerative metal-binding material is reversible and wherein the regenerative metal-binding material is reusable.3. The device according to claim 2 , wherein the regenerative metal-binding material comprises the MT protein in an aqueous solution.4. The device according to claim 2 , wherein the regenerative metal-binding material comprises the MT protein associated with a solid support.5. The device according to claim 4 , wherein the solid support is a resin.6. The device according to claim 4 , wherein the solid support is a membrane.7. The device according to claim 2 , wherein the substrate is a metal-containing liquid.8. The device according to wherein the substrate is a metal-containing organic liquid.9. The device according to claim 2 , wherein the heavy metal is a heavy metal complex.10. The device according to of claim 2 , wherein the metal is substantially released from the metal-binding protein at a pH of about 1.11. The device according to claim 2 , wherein the metal-binding protein has a substantial metal-binding affinity at a pH above about pH 5.12. A method for removing metals from ...

METHOD FOR PLATINUM RECOVERY FROM MATERIALS CONTAINING RHENIUM AND PLATINUM METALS

The present disclosure relates to hydrometallurgical methods for the isolation and recovery of platinum from rhenium-containing materials, and more particularly, from superalloys containing rhenium, platinum, and other metals. The disclosure also relates to apparatuses capable of carrying out the hydrometallurgical methods and the product streams generated from the methods and apparatuses. 1. A system configured to separate platinum and rhenium wherein the system comprises:an apparatus configured to digest an alloy feed comprising platinum and rhenium in a complexing ligand comprising halides in an amount sufficient to complex the platinum present in the alloy feed;an apparatus configured to separate resulting solids from the liquid comprising platinum and rhenium, wherein a concentration of rhenium and/or platinum in the resulting solids is from 50 to 100% lower than a concentration of rhenium and/or platinum in the alloy feed;an apparatus configured to contact a liquid comprising platinum and rhenium with a chelating ion exchange resin, whereby the platinum is adsorbed onto the chelating ion exchange resin,an apparatus configured to obtain a liquid stream comprising a higher relative concentration of rhenium to platinum than a relative concentration of rhenium to platinum in the liquid comprising platinum and rhenium.2. The system of claim 1 , wherein the chelating ion exchange resin is functionalized with thiourea or thiouronium groups.3. The system of claim 1 , wherein the pH of the liquid comprising platinum and rhenium is below 5.4. The system of claim 1 , wherein the complexing ligand is selected from the group consisting of hydrochloric acid claim 1 , a chloride containing salt claim 1 , bromine and bromide salts claim 1 , or chlorine.5. The system of claim 1 , wherein the apparatus configured to digest an alloy feed is configured to digest the alloy feed comprising platinum and rhenium in an oxidant capable of oxidizing both platinum and rhenium from their ...

METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS

The present disclosure relates to a method for extracting lithium from a lithium-containing material. For example, the method can comprise leaching a roasted lithium-containing material under conditions suitable to obtain an aqueous composition comprising a lithium compound such as lithium sulfate and/or lithium bisulfate. The aqueous composition comprising lithium sulfate and/or lithium bisulfate can optionally be used, for example, in a method for preparing lithium hydroxide comprising an electromembrane process. The roasted lithium-containing material can be prepared, for example by a method which uses an aqueous composition comprising optionally lithium sulfate and/or lithium bisulfate which can be obtained from a method for preparing lithium hydroxide comprising an electromembrane process such as a two-compartment monopolar or bipolar electrolysis process. 1. A method for treating an electromembrane process aqueous composition comprising lithium sulfate , said process comprising removing water from said electromembrane process aqueous composition under conditions suitable for substantially selectively precipitating lithium sulfate monohydrate.2. The method of claim 1 , wherein water is removed by heating said electromembrane process aqueous composition at a temperature of about 100° C. to about 125° C.3. The method of claim 1 , wherein water is removed by heating said electromembrane process aqueous composition at a temperature of about 100° C. to about 135° C.4. The method of claim 3 , wherein said second aqueous composition is heated at atmospheric pressure.5. The method of claim 1 , wherein increasing concentration of said acid is carried out by a membrane dehydration process.6. The method of claim 1 , further comprises carrying out a solid-liquid separation to recover said lithium sulfate claim 1 , thereby obtaining said lithium sulfate and an acidic composition.7. The method of claim 1 , further comprises carrying out a solid-liquid separation at a ...

Method of separating mercury from an ore leachate

Described herein are compositions and methods for preferentially separating mercury from a metal product where both are present in an ore leachate. The separation is accomplished by adding a precipitating agent and a coagulant to an ore leachate followed by separating a mercury-laden precipitate therefrom to collect the treated leachate. The treated leachate includes about 0 to 50% by weight of the mercury and about 90% to 100% by weight of the metal product present in the ore leachate. In embodiments, the method further includes adding a flocculant to the ore leachate prior to the separating of the mercury-laden precipitate.

PROCESSES FOR RECOVERING RARE EARTH ELEMENTS

A process for recovering a rare earth element. The process includes adding water and a nonaqueous acid to an ionic liquid, and dissolving an oxide of a first rare earth element directly into the ionic liquid to form an ionic solution comprising at least about 0.1 weight percent water, the acid and an ion of the first rare earth element. The process further includes applying a potential to the ionic solution to deposit the first rare earth element onto an electrode as a metal. 1. A process for recovering a rare earth element , comprisingadding water and a nonaqueous acid to an ionic liquid, and dissolving an oxide of a first rare earth element directly into the ionic liquid to form an ionic solution comprising at least about 0.1 weight percent water, the acid and an ion of the first rare earth element; andapplying a potential to the ionic solution to deposit the first rare earth element onto an electrode as a metal.2. The process of claim 1 , further comprising dissolving an oxide of a second rare earth element directly into the ionic liquid claim 1 , wherein the ionic solution further comprises an ion of the second rare earth element claim 1 , and wherein the potential applied to the ionic solution is selected to reduce the ion of the first rare earth element preferentially over the ion of the second rare earth element in the ionic solution.3. The process of claim 1 , wherein the oxide of the first rare earth element is obtained from a mined or recycled material.4. The process of claim 2 , wherein the oxide of the second rare earth element is obtained from a mined or recycled material.5. The process of claim 1 , further comprising adding the oxide of the first rare earth element to the ionic liquid prior to adding the water and the nonaqueous acid to the ionic liquid claim 1 , to form a mixture of the oxide of the first rare earth element and the ionic liquid.6. The process of claim 3 , wherein the ionic solution is maintained at a temperature of 30° C. or less when ...

SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS

The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other. 1. (canceled)2. A system for extracting metal value comprising: wherein the first circuit comprises a first first circuit extractor, a second first circuit extractor, a third first circuit extractor, a fourth first circuit extractor, and at least two first circuit stripping units, and', 'wherein the second circuit comprises a first second circuit extractor, a second second circuit extractor and at least one second circuit stripping unit;, 'a solution extraction plant comprising a first circuit and a second circuit,'}a first electrolyte forwarded to a primary electrowinning circuit; and wherein the third first circuit extractor is in fluid communication with the first second circuit extractor, and', 'wherein the fourth first circuit extractor is in fluid communication with the second second circuit extractor., 'a second electrolyte forwarded to a second electrowinning circuit,'}3. The system of claim 2 , wherein a first portion of a first metal-bearing solution is provided to the first circuit claim 2 , a second portion of the first metal-bearing solution is provided to the second circuit claim 2 , and a second metal-bearing solution is provided to the second circuit.4. The system of claim 3 , wherein the first metal- ...

METHOD FOR RECOVERING SCANDIUM VALUES FROM LEACH SOLUTIONS

A method for isolating scandium values is provided. The method includes providing a scandium-bearing ore; subjecting the scandium-bearing ore to an acid leaching process, thereby obtaining a leachate, wherein the pH of the leachate is less than 1.5; extracting scandium values from the leachate with an organic solvent, thereby obtaining a scandium-loaded organic solvent, wherein the leachate contains iron and scandium ions, and wherein the organic solvent contains a primary amine; stripping the scandium values from the scandium-loaded solvent with a stripping solution containing an acid and a salt, thereby obtaining a scandium-loaded stripping solution, wherein the acid is selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid and phosphoric acid, wherein the salt is selected from the group consisting of alkali chlorides, alkali earth chlorides, alkali nitrates, alkali sulfates, alkali phosphates, ammonium chlorides, ammonium nitrates, ammonium sulfates and ammonium phosphates, and wherein the salt comprises a cation selected from the group consisting of Na, K, Li, NHand Mg; and processing the scandium-loaded stripping solution to yield scandium oxide. 1. A method for recovering scandium values from scandium-bearing ores , the method comprising:providing a scandium-bearing ore;subjecting the scandium-bearing ore to an acid leaching process, thereby obtaining a leachate, wherein the pH of the leachate is less than 1.5;extracting scandium values from the leachate with an organic solvent, thereby obtaining a scandium-loaded organic solvent, wherein the leachate contains iron and scandium ions, and wherein the organic solvent contains a primary amine;{'sub': '4', 'stripping the scandium values from the scandium-loaded solvent with a stripping solution containing an acid and a salt, thereby obtaining a scandium-loaded stripping solution, wherein the acid is selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid and ...

PROCESS FOR SEPARATING SCANDIUM FROM COMPLEX SALT MIXTURES

A method of separating scandium from a feedstock wherein a scandium enriched solution is produced from the feedstock and the scandium enriched solution is extracted to produce an organic phase of the scandium enriched solution. The organic phase of the scandium enriched solution is re-extracted to produce an aqueous phase including scandium chloride. The aqueous phase is precipitated and calcinated to produce scandium oxide powder. 1. A method of separating scandium from a feedstock , the method comprising:producing a scandium enriched solution from the feedstock;extracting the scandium enriched solution to produce an organic phase of the scandium enriched solution;re-extracting the organic phase of the scandium enriched solution to produce an aqueous phase including scandium chloride; andprecipitating and calcinating the aqueous phase to produce scandium oxide powder.2. The method of in which extracting the scandium enriched solution includes adding one or more solvents to the scandium enriched solution.3. The method of in which the solvents include tributyl phosphate (TBP) and tris-2-ethylhexylphosphate (TEHP).4. The method of in which re-extracting the organic phase includes adding an acid to the organic phase.5. The method of further including subjecting the feedstock to a recovery process to produce a concentrate.6. The method of in which the concentrate is made into a slurry and filtered to produce a solid precipitate made into the scandium enriched solution by dissolution.7. The method of further including pre-processing the feedstock.8. The method of claim on in which the feedstock is coal ash.9. A method of separating scandium from a coal ash feedstock claim 1 , the method comprising:producing a scandium enriched solution from the feedstock;extracting the scandium enriched solution to produce an organic phase of the scandium enriched solution by adding one or more solvents to the scandium enriched solution;re-extracting the organic phase of the scandium ...

EXTRACTION OF RARE EARTH ELEMENTS AND CARBON RICH SOLIDS FROM COAL FEEDSTOCK USING IONIC LIQUIDS

Rare earth elements and carbon rich solids are extracted from coal feedstock by combining a coal feedstock with an ionic liquid, forming a mixture. The mixture is heated and a co-solvent is added. Carbon rich solids and rare earth elements are removed from the solution. The ionic liquid and co-solvent may be reused. 1) A method to extract at least one rare earth element and carbon rich solids from coal feedstock , the method comprising:providing a coal feedstock, the coal feedstock comprising at least one rare earth element;providing an ionic liquid;combining the coal feedstock and the ionic liquid, forming a mixture;heating the mixture to a predetermined temperature;adding a co-solvent to the heated mixture, producing a first solution;removing carbon rich solids and dissolved minerals from the first solution thereby forming a second solution; andseparating the co-solvent, ionic liquid, rare earth elements from the second solution thereby forming a third solution.2) The method of claim 1 , wherein the coal feedstock comprises at most approximately 1% by weight one or more rare earth elements.3) The method of claim 1 , wherein the mixture comprises at most approximately 50% by weight solid loading.4) The method of claim 1 , further including the step of incubating the mixture at a predetermined temperature for a predetermined time.5) The method of claim 4 , wherein the predetermined time is up to 24 hours.6) The method of claim 1 , wherein the step of heating further includes extracting unwanted chemicals from the mixture.7) The method of claim 1 , wherein the coal feedstock is raw coal claim 1 , a coal byproduct claim 1 , coal ash claim 1 , fly ash or a combination thereof.8) The method of claim 1 , wherein the at least one rare earth element is in a metallic state.9) The method of claim 1 , wherein the predetermined temperature ranges between approximately 25° C. and 200° C.10) The method of claim 1 , wherein the co-solvent is water claim 1 , ethanol claim 1 , ...

Method of separating mercury from an ore leachate

Described herein are compositions and methods for preferentially separating mercury from a metal product where both are present in an ore leachate. The separation is accomplished by adding a precipitating agent and a coagulant to an ore leachate followed by separating a mercury-laden precipitate therefrom to collect the treated leachate. The treated leachate includes about 0 to 50% by weight of the mercury and about 90% to 100% by weight of the metal product present in the ore leachate. In embodiments, the method further includes adding a flocculant to the ore leachate prior to the separating of the mercury-laden precipitate.

Methods of copper extraction

The hydrometallurgical copper extraction processes of the present teachings generally including two steps: a conditioning or activating step using low concentrations of ammonia and ammonium in an aqueous solution; and an acid leaching step. The processes of the present teachings can be performed at low temperature, for example, at ambient temperature, and at atmospheric pressure.

Leaching Copper-Containing Ores

A method of leaching copper-containing ores includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor in the presence of an additive that enhances the dissolution of copper from copper minerals in the ores and concentrates by forming a complex between (a) sulfur, that has originated from copper minerals in the ores, and (b) the additive. A method of leaching copper-containing ores includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor in the presence of a nitrogen-containing organic complexing additive that forms a complex between sulfur, that has originated from copper minerals in the ores, and the additive. 1. A method of leaching copper-containing ores , such as copper-containing sulfidic ores such as sulfidic ores that contain copper minerals such as chalcopyrite and/or enargite , or concentrates of the ores or tailings of the ores or concentrates , that includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor in the presence of an additive that enhances the dissolution of copper from copper minerals in the ores and concentrates by forming a complex between (a) sulfur , that has originated from copper minerals in the ores , and (b) the additive.2. The method according to claim 1 , wherein the complex comprises sulfur from the copper minerals and the additive claim 1 , with the additive breaking down the passivating layer or reducing the formation of the layer and therefore allowing greater access for leaching copper from copper minerals during the method.3. The method according to claim 1 , wherein the additive comprises a nitrogen-containing complexing agent that includes at least two nitrogen atoms spaced by two carbon atoms to permit the additive to form complexes ...

Leaching Copper-Containing Ores

A method of leaching copper-containing ores includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor in the presence of an additive that enhances the dissolution of copper from copper minerals in the ores and concentrates by forming a complex between (a) sulfur, that has originated from copper minerals in the ores, and (b) the additive. A method of leaching copper-containing ores includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor in the presence of a nitrogen-containing organic complexing additive that forms a complex between sulfur, that has originated from copper minerals in the ores, and the additive. 1. A method of leaching copper-containing ores containing chalcopyrite and/or enargite , concentrates of the ores , or tailings of the ores or the concentrates , comprising leaching the copper-containing ores containing chalcopyrite and/or enargite , the concentrates of the ores , or the tailings of the ores or the concentrates with a leach liquor in the presence of an additive that enhances dissolution of copper from copper minerals in the ores and the concentrates by forming a complex between (a) sulfur , that has originated from copper minerals in the ores , and (b) the additive , wherein the concentration of the additive is up to 10 g/L in the leach liquor , and wherein leaching includes controlling the pH of the leach liquor to be less than 2.5.2. The method according to claim 1 , wherein the complex comprises sulfur from the copper minerals and the additive claim 1 , with the additive breaking down a passivating layer or reducing a formation of a passivating layer and therefore increasing access for leaching copper from copper minerals during the method.3. The method according to claim 1 , wherein the additive comprises a ...

METHOD FOR THE DISCRIMINATION BETWEEN MARINE AND TERRESTRIAL SEDIMENTARY ENVIRONMENTS BY SELECTIVELY EXTRACTED EXCHANGEABLE STRONTIUM TO BARIUM RATIO FROM TERRIGENOUS CLASTIC SEDIMENTS

A method of selective extracting exchangeable strontium and barium from sediments, comprising, collecting a predetermined quantity of a sedimentary sample, removing biogenic clasts from the predetermined quantity of the sedimentary sample to provide a coarse filtered sedimentary sample, baking the coarse filtered sedimentary sample at a temperature less than 105° C., crushing the coarse filtered sedimentary sample to yield a fine filtered sedimentary sample having a sample grain size of less than 100 mesh, reacting a portion of the fine filtered sedimentary sample in a solution containing at least one of an ammonium acetate reactant and a sodium acetate reactant, measuring a strontium level within a liquid product of the solution, measuring a barium level within the liquid product of the solution and determining a ratio of the strontium level and the barium level of the liquid product. 1. A method of selective extracting exchangeable strontium and barium from sediments , comprising: removing biogenic clasts from the predetermined quantity of the sedimentary sample to provide a coarse filtered sedimentary sample;', 'baking the coarse filtered sedimentary sample at a temperature less than 105° C.;', 'crushing the coarse filtered sedimentary sample to yield a fine filtered sedimentary sample having a sample grain size of less than 100 mesh;', 'reacting a portion of the fine filtered sedimentary sample in a solution containing at least one of an ammonium acetate reactant and a sodium acetate reactant;', 'measuring a strontium level within a liquid product of the solution;', 'measuring a barium level within the liquid product of the solution; and', 'determining a ratio of the strontium level and the barium level of the liquid product., 'collecting a predetermined quantity of a sedimentary sample;'}2. The method of wherein the ratio of the strontium level to the barium level is determined.3. The method of wherein the ratio of the barium level to the strontium level is ...

METHOD OF DETECTION AND EXTRACTING METALS FROM ORE-BEARING SLURRY

Method and apparatus are provided to select precious metals slurries of ore and water. Slurry is directed to pass over detectors, each comprising a pair of low voltage electrodes. The electrodes are spaced apart to form a detection gap. A slurry sample, having metals therein, is received at the gap. Metals at the gap generate a signal to trigger actuation to shunt the sample slurry and metals therein to a collection stream. Each collection stream can be processed in a similar, yet subsequent, refinement stage. Remaining slurry passes by the detector for further processing or as waste. One or more detectors are provided and, preferably, an array of detectors is provided in series and in stages, for collection efficiency. Each series of detectors can be provided in parallel arrangements for increased collection capacity. Detectors can be housed in modular sampling units for shipping and assembly efficiency. 1. A process for selecting metals of interest from ore comprising:selecting a sample of a first feed stream of slurry of ore and water flowing across at least one electrical detector for establishing detector signals indicative of the presence of the metals within the slurry sample;upon receiving the detector signal, thendirecting the slurry sample to a second collection stream containing the metals; andrecovering metals collected from the second stream.2. The process of claim 1 , wherein each electrical detector comprises a pair of electrodes claim 1 , the process further comprising crushing the ore to a size of at least about a gap between the pair of electrodes.3. The process of further comprising:one or more samplers wherein each sampler incorporates at least one of the one or more the electrical detectors;flowing the first stream across each sampler and upon receiving the respective electrical detector's signal;directing the slurry sample selected for that sampler to the second collected stream; andflowing a balance of the first stream of slurry as an overflow ...

ARC FURNACE SMELTERING SYSTEM & METHOD

An industrial scale smelting system that processes large quantities of ore in a production manner for recovery of a plurality of elements in useful quantities using a furnace system and a plurality of electrowinning processes with the option of raw material recovery and recirculation capabilities. 1. A method of using a smelting system comprising a furnace system and an electrowinning system for extracting elements from ore , comprising the steps of:obtaining ore comprising a plurality of different elements and/or comprising a plurality of different naturally occurring element compounds;preparing the ore for transportation and input into the smelting system;inputting at least one feed chemical into the furnace system;inputting the prepared ore into the furnace system;heating the ore and the at least one feed chemical in the furnace system to convert the plurality of different elements and/or the plurality of naturally occurring element compounds in the inputted ore into a corresponding plurality of different chemical compounds utilizing the input feed chemical;outputting the different chemical compounds from said furnace system into the electrowinning system comprising a plurality of electrowinning tanks, wherein each one of said electrowinning tanks is configured to extract a different desired element from a different subset of the different chemical compounds output by the furnace;operating each one of the electrowinning tanks to extract the desired element in each respective electrowinning tank; andoutputting the desired elements each from an output of a respective one of the electrowinning tanks.2. The method of claim 1 , wherein said different chemicals output by said furnace system are input into each one of the electrowinning tanks in series.3. The method of claim 1 , wherein said electrowinning system releases the feed chemical or a compound thereof for recirculation in the smelting system.4. The method of claim 1 , wherein said feed chemical converts the ...

HYDROMETALLURGICAL TREATMENT PROCESS FOR EXTRACTION OF PRECIOUS, BASE AND RARE ELEMENTS

This invention relates to a hydrometallurgical process for the recovery and separation of valuable precious, base or rare elements such as platinum group metals (PGMs), gold or silver, and other valuable base and rare metals such as nickel, cobalt, copper, rare earth elements (REE), yttrium and scandium, as well as uranium, thorium, manganese, zinc, cadmium, molybdenum, titanium, tin, and other minor elements such as vanadium, germanium and gallium from a feed material comprising ores, concentrates and other materials. In particular, the process comprises quantitative removal of additional base, rare and gangue elements for increased efficiency of further treatment of the solids for valuable metals recovery and/or recycling and/or separation of valuable metals from pressure leach residue and may be integrated into one or more existing valuable element extraction processes. 1. A hydrometallurgical process for extracting one or more saleable metals selected from the group consisting of: precious elements comprising one or more platinum group metal (PGM) , gold and silver; a base metal comprising nickel , cobalt , copper , zinc , uranium , thorium , manganese , cadmium , molybdenum , titanium , and/or tin; a rare earth element (REE) , yttrium and/or scandium; and a rare element comprising vanadium , germanium and/or gallium from a feed material containing saleable metals comprising any one or more of a metalliferous ore or metalliferous feedstock; a concentrate; a solid residue from a hydrometallurgical process; and/or a solid residue after solid-liquid separation of a product slurry from hot sulphuric acid leaching under pressure and/or atmospheric conditions from the metalliferous ore or metalliferous feedstock , concentrate or solid residue , the process comprising subjecting the feed material to the following steps:a) leaching with hot hydrochloric acid or brine under pressure and/or atmospheric conditions either with no added oxidant or reductant or with an added ...

Treated Geothermal Brine Compositions With Reduced Concentrations Of Silica, Iron and Manganese

This invention relates to treated geothermal brine compositions containing reduced concentrations of iron, silica, and manganese compared to the untreated brines. Exemplary compositions contain a concentration of manganese less than 10 mg/kg, a concentration of silica ranging from less than 10 mg/kg, and a concentration of iron less than 10 mg/kg, and the treated geothermal brine is derived from a Salton Sea geothermal reservoir. 120-. (canceled)21. An aqueous treated geothermal brine composition , the composition comprising dissolved manganese , dissolved silica , and dissolved iron , wherein the dissolved manganese has a concentration greater than zero and no more than 200 mg/kg , the dissolved silica has a concentration of 0 mg/kg to 80 mg/kg , and the dissolved iron has a concentration of 0 mg/kg to 300 mg/kg.22. The aqueous treated geothermal brine composition of claim 21 , wherein the concentration of the dissolved manganese is no more than 200 mg/kg claim 21 , the concentration of the dissolved silica is no more than 30 mg/kg claim 21 , and the concentration of the dissolved iron is no more than 300 mg/kg.23. The aqueous treated geothermal brine composition of claim 21 , wherein the concentration of the dissolved manganese is less than 100 mg/kg claim 21 , the concentration of the dissolved silica is less than 30 mg/kg claim 21 , and the concentration of the dissolved iron is less than 300 mg/kg.24. The aqueous treated geothermal brine composition of claim 21 , wherein the concentration of the dissolved manganese is less than 50 mg/kg claim 21 , the concentration of the dissolved silica is less than 30 mg/kg claim 21 , and the concentration of the dissolved iron is less than 300 mg/kg.25. The aqueous treated geothermal brine composition of claim 21 , wherein the concentration of the dissolved manganese is less than 20 mg/kg claim 21 , the concentration of the dissolved silica is less than 20 mg/kg claim 21 , and the concentration of the dissolved iron is less ...

Re-extraction method of rare-earth metals from organic solutions and obtainment of concentrate from rare-earth metals

FIELD: metallurgy. SUBSTANCE: invention refers to liquid extraction processes, in particular to obtainment of rear-earth metals concentrates, in non-ferrous and ferrous metallurgy, during utilisation of chemical and metallurgical production waste and for purification of shaft, mine and industrial waste water. The method of rear-earth metals removal from diluted water acid solutions involves consecutive steps of liquid-phase extraction of rear-earth metals to organic phase and re-extraction of rear-earth metals from organic phase by settlement of rear-earth metals to solid phase in the form of slightly soluble salt of strong acid. EFFECT: providing efficient removal of rear-earth metals without neutralising of acid containing in organic phase and use of cheap commercially available reagents. 7 cl, 6 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 538 863 C2 (51) МПК C01F 17/00 (2006.01) C22B 3/26 (2006.01) C22B 59/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013109742/05, 05.03.2013 (24) Дата начала отсчета срока действия патента: 05.03.2013 (43) Дата публикации заявки: 10.09.2014 Бюл. № 25 (45) Опубликовано: 10.01.2015 Бюл. № 1 2 5 3 8 8 6 3 R U Адрес для переписки: 190000, Санкт-Петербург, пер. Гривцова, 4А, Деловой комплекс, 2-й этаж, фирма "Бейкер и Макензи-Си-Ай-Эс, Лимитед", Белкову В.М. (54) СПОСОБ РЕЭКСТРАКЦИИ РЕДКОЗЕМЕЛЬНЫХ МЕТАЛЛОВ ИЗ ОРГАНИЧЕСКИХ РАСТВОРОВ И ПОЛУЧЕНИЕ КОНЦЕНТРАТА РЕДКОЗЕМЕЛЬНЫХ МЕТАЛЛОВ (57) Реферат: Изобретение относится к технологиям органическую фазу и реэкстракции жидкостной экстракции, в частности получению редкоземельных металлов из органической фазы концентрата редкоземельных металлов, в цветной путем осаждения редкоземельных металлов в и черной металлургии, при переработке отходов твердую фазу в виде малорастворимой соли химических и металлургических производств, а сильной кислоты. Изобретение обеспечивает также для очистки шахтных и рудничных и эффективное ...

Hydrometalurgical process and apparatus for recovering metals from waste material

본 발명은 금속을 회수하기 위한 특히 도시 폐기물 소각장과 같은 폐기물 소각장(4)의 저회(bottom ash)로부터 금속을 회수하기 위한 공정 및 장치에 관한 것이다. 본 발명에 따르면, 회(ash)를 함유하는 공급물이 산화 유닛(1)에 공급되고, 상기 금속의 적어도 일부가 1종 이상의 산 및 적어도 1종의 산소 주개의 존재 하에서 산화되고, 이렇게 하여 금속 이온을 포함하는 스트림을 생성한다. 이런 스트림으로부터 용매 추출 유닛(2) 내에서 관심 금속이 선택되고 농축되고, 그 후에 전해 채취 유닛(electrowinning unit)(3) 내에서 금속 형태로 전환된다. The present invention relates to a process and apparatus for recovering metal from bottom ash of a waste incineration plant (4), in particular a municipal waste incinerator. According to the present invention, a feed containing ash is fed to the oxidation unit 1, at least a part of the metal is oxidized in the presence of at least one acid and at least one oxygen radical, Ions. &Lt; / RTI &gt; From this stream, the metal of interest is selected and concentrated in the solvent extraction unit 2, and then converted into a metal form in the electrowinning unit 3.

Method for recycling indium

본 발명은 인듐 회수 방법에 관한 것으로, 인듐 함유물을 염산에 용해하여 인듐 용해액을 제조하는 용해 단계, 상기 인듐 용해액에 알칼리를 첨가하여 상기 인듐 용해액의 pH가 2.5 내지 3.5가 되도록 중화하는 중화 단계, 상기 중화된 인듐 용해액을 숙성하는 숙성 단계, 상기 숙성된 인듐 용해액에 황화제를 첨가하여 상기 숙성된 인듐 용해액의 pH가 2 내지 3이 되도록 한 후, 생성된 황화물을 제거하는 황화 단계, 그리고 상기 황화 단계를 거친 인듐 용해액을 전해 용액으로 하고, 3.5 내지 4.5V의 전해 조건에서 인듐을 전해 채취하는 전해 단계를 포함한다. The present invention relates to a method for recovering indium, wherein a dissolution step of dissolving an indium content in hydrochloric acid to prepare an indium solution, neutralizing the solution of the indium solution to 2.5 to 3.5 by adding an alkali to the indium solution. Neutralization step, aging step of aging the neutralized indium solution, adding a sulfiding agent to the aged indium solution so that the pH of the aged indium solution is 2 to 3, and then the resulting sulfide is removed And a sulfidation step, and an indium dissolving solution having undergone the sulfidation step as an electrolytic solution, and an electrolysis step of electrolyzing indium under an electrolytic condition of 3.5 to 4.5 V. 상기 인듐 회수 방법을 이용하면 순도 99.9999% 이상의 고순도 인듐을 회수할 수 있고, 전해 채취시 조인듐을 양극으로 사용하지 않음으로써 공정 비용을 절감할 수 있으며, 이온 교환 처리(cementation) 등의 추가적인 정제 공정이 필요 없어 공정을 단축할 수 있다. By using the indium recovery method, high purity indium of 99.9999% or higher purity can be recovered, and the process cost can be reduced by not using indium as an anode during electrolytic extraction, and further purification processes such as ion exchange treatment (cementation) This eliminates the need for a shorter process. 인듐, 회수, ITO, LCD, 태양전지, 순도, 고순도, 6N, 염산, 용해, 알칼리, 중화, 황화, 황화제, 불용성양극, 전해 Indium, Recovery, ITO, LCD, Solar Cell, Purity, High Purity, 6N, Hydrochloric Acid, Soluble, Alkali, Neutralization, Sulphide, Sulphide, Insoluble Anode, Electrolytic

Method of extraction of copper (i) oxide cu2o from multicomponent sulfate solutions of heavy non-ferrous metals

FIELD: copper hydrometallurgy.SUBSTANCE: invention relates to the hydrometallurgy of copper and can be used in the processing of solutions obtained in the leaching of copper ores, concentrates and other industrial waste containing copper. Isolation of Cu2O from a multicomponent sulfate solution of heavy non-ferrous metals is carried out by processing to obtain CuSO4and further precipitation of copper in the form of a CuCl salt then subsequently exposure to it with the previously obtained copper powder and obtaining copper oxide (I). Calcium dichloride is added to the original multicomponent sulfate solution in the form of a solution or a solid product in an amount necessary to achieve an ionic concentration ratio Cu+ 2: Cl- = 1: 2 in the solution, to obtain gypsum (CaSO4) in the precipitate, which is then separated. Copper powder is added to the remaining solution in an amount equal to the amount of Cu+ 2in the solution, while copper (II) is reduced to copper (I) and a precipitate of copper (I) chloride is isolated, which is washed with water and re-treated with calcium dichloride to obtain a chloro complex solution copper (I) CuCl2-. Slaked lime Ca (OH)2is added to the obtained copper (I) chlorocomplex when heated to 80 °С. After that, copper (I) oxide Cu2O is obtained by its hydrolytic decomposition. Then the precipitate of copper oxide Cu2O is separated from the solution and washed with water, and the filtrate – the CaCl2solution is returned to the process.EFFECT: method makes it possible to increase the degree of selectivity of copper oxide separation from multicomponent sulfate solutions of non-ferrous metals.1 cl, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 744 291 C1 (51) МПК C22B 3/00 (2006.01) C01G 3/02 (2006.01) C22B 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 3/0004 (2020.08); C01G 3/02 (2020.08); C22B 15/00 (2020.08) (21)(22) Заявка: 2020128348, 24.08.2020 (24) Дата ...

Способ переработки сульфидного золотомедного флотоконцентрата

Изобретение относится к гидрометаллургической переработке сульфидного золотомедного флотоконцентрата. Проводят сверхтонкое измельчение до крупности Р80% класса минус 20 мкм и менее, предварительную окислительную обработку раствором серной кислоты с добавлением ионов трехвалентного железа в качестве окислителя при атмосферном давлении и с барботажем кислородсодержащего газа в реакторе открытого типа при температуре 90-95°С. Во время предварительной окислительной обработки или по ее завершению в пульпу вводят тиоцианат-цианидную смесь в качестве растворителя золота и проводят сорбционное выщелачивание золота при атмосферном давлении и температуре 60÷95°С, рН 0,5-3, в течение 30-120 мин. Молярное отношение SCN:CN поддерживают 1:0,2÷1, а молярное отношение тиоцианата к окислителю в виде трехвалентного железа SCN:Fe 3+ поддерживают 1:1,8÷5. Насыщенный золотом сорбент отделяют от пульпы, обеззолоченную пульпу обезвоживают, а раствор направляют на извлечение меди, после извлечения меди раствор возвращают в процесс предварительной окислительной обработки. Способ повышает скорость и степень извлечения золота, снижает капитальные затраты путем сокращения времени выщелачивания и снижает эксплуатационные затраты за счет снижения расходов реагентов и электроэнергии. 4 з.п. ф-лы, 5 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 749 310 C2 (51) МПК C22B 11/00 (2006.01) C22B 3/06 (2006.01) C22B 3/24 (2006.01) C22B 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 11/04 (2021.02); C22B 3/04 (2021.02); C22B 3/20 (2021.02); C22B 15/0008 (2021.02) (21)(22) Заявка: 2019128082, 05.09.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 08.06.2021 (43) Дата публикации заявки: 05.03.2021 Бюл. № 7 (45) Опубликовано: 08.06.2021 Бюл. № 16 2 7 4 9 3 1 0 R U (56) Список документов, цитированных в отчете о поиске: WO 9629439 A1, 26.09.1996. RU 2385959 C1, 10.04.2010. EA 9453 B1, 28.12.2007. EA 9842 B1, 28.04. ...

A process for producing high grade blast furnace feed from poor grade iron ore ultra fines

一种用于从低等级铁矿超细粉生产高等级高炉供料的方法，在于：通过选择性分散来处理超细粉，以将脉石材料与沉淀的铁材料分开；并通过使用非选择性分散剂进行再次分散来处理沉淀的铁材料。通过使用改性淀粉进行选择性絮凝来处理分散后的沉淀材料，以将用于高炉的浓缩铁与尾矿分离，从而使脉石矿物留在分散相中。在使用非选择性分散剂进行再次分散以及为了更好的絮凝而通过旋液分离过程来分离更细的颗粒的过程中，含铁矿物和所述脉石矿物之间的分离过程在特定的pH下基于表面电荷条件来进行，以生产含68％Fe、1％氧化铝和1％二氧化硅的最终产物。

Method and apparatus for producing natural calcium from oyster shells

The present invention relates to a method and an apparatus for producing natural calcium with high purity and absorptivity from oyster shells and, more specifically, relates to the method and the apparatus for producing natural calcium from oyster shells. The method for producing natural calcium comprises an oyster shell pulverization step, an oyster shell dissolution step, a cohesion refinement step, a filter separation step, a drying step, and a powder producing step. Moreover, the apparatus comprises a dissolution tank, a hydrochloric acid aqueous solution injector, an oyster shell pulverization object input device, a caustic soda input device, a deodorizer, a filter, and a nano-pulverizer.

从锌冶炼的沉铟后液中去除钙镁的方法和装置

本发明公开了一种从锌冶炼的沉铟后液中去除钙镁的方法和装置，所述从锌冶炼的沉铟后液中去除钙镁的方法包括以下步骤：向所述沉铟后液中加入无水硫酸钙晶种和一水硫酸镁晶种；和在120℃‑200℃的条件下，利用赤铁矿除铁法去除所述沉铟后液中的铁，同时使所述沉铟后液中的钙和镁结晶析出，以便得到除铁钙镁后液，其中所述沉铟后液中的钙以无水硫酸钙的形式结晶析出，所述沉铟后液中的镁以一水硫酸镁的形式结晶析出。通过利用根据本发明实施例的从锌冶炼的沉铟后液中去除钙镁的方法，可以有效地去除该沉铟后液中的钙和镁。

Improved electrochemical cell apparatus and method for separating impurities

一种从水溶液中分离杂质的电化学方法，包括以下步骤：使含有杂质离子的进料水溶液循环至含有阴极的电化学电解池的阴极室中；使酸性电解质溶液循环至包含阳极的阳极室中；阳极室与阴极室用中心室分开，形成含三个腔室的电解池，在阴极室和中心室之间有阴离子交换膜，形成一个边界，而在阳极室和中心室之间则有一个阳离子交换膜,形成另一个边界；在中心室内添加氯化物溶液或使其循环至中心室中；在阳极和阴极之间施加电流，促进阳极产生的氢离子通过阳离子交换膜迁移到中心室，促进阴极室产生的氯离子通过阴离子交换膜迁移到中心室，从而形成盐酸；其中，杂质离子以氢氧化物的形式沉淀在阴极室中，使产生的溶液中消耗掉了杂质。

Nickel and cobalt recovery using continuous ion exchange

FIELD: chemistry. SUBSTANCE: method comprises: (a) process liquor solution passing through the ion exchange bed for nickel absorption by the ion exchange resin and cobalt-containing raffinate solution formation, (b) sulfuric acid passing through the saturated ion exchange bed to strip nickel from the ion exchange resin and obtain nickel eluate (c) washing solution passing through the desorbed ion exchange bed, (d) cobalt-containing raffinate solution pH adjustment to a value of at least 2.3, (e) cobalt-containing raffinate solution passing through the ion exchange bed for preliminary cobalt absorption by the ion exchange resin, (f) steps (a)-(e) are repeated to increase cobalt concentration in the cobalt-containing raffinate solution to the level at least twice greater than that in the process liquor solution, and (g) removal of the first part of the cobalt-containing raffinate solution from step (d) from the nickel extraction circuit for further cobalt extraction, and (h) bringing of the second part of the cobalt-containing raffinate solution from step (d) to step (e). EFFECT: method allows to extract nickel and cobalt more efficiently at a lower cost. 7 cl, 2 dwg, 1 tbl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 621 504 C2 (51) МПК C22B 3/42 (2006.01) C22B 3/20 (2006.01) C22B 23/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014148179, 23.04.2013 (24) Дата начала отсчета срока действия патента: 23.04.2013 (72) Автор(ы): МАРСТОН, Чарльз Р. (US), ЭЙЧЕР, Кристофер Р. (US) 06.06.2017 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: EA 12644 B1, 30.12.2009. WO 01.05.2012 US 61/640,925 9620291 A1, 04.07.1996. WO 2010118455 A1, 21.10.2010. SU 618434 A1,05.08.1978. RU 2323267 C2, 27.04.2008. (45) Опубликовано: 06.06.2017 Бюл. № 16 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.12.2014 (86) Заявка PCT: US ...

Method of producing solutions containing nickel or cobalt

Изобретение может быть использовано при получении материалов для положительных электродов литий-ионных аккумуляторных батарей. Для получения растворов, применяемых в производстве положительных электродов, используют раствор серной кислоты, содержащий никель, кобальт и кальций. Параллельно проводят первую стадию получения смешанного раствора сульфата никеля и сульфата кобальта и вторую стадию получения раствора сульфата никеля. На первой стадии раствор серной кислоты подвергают экстракции растворителем с использованием экстрагента, получая первый органический растворитель после экстракции, содержащий кальций, и первый экстракционный остаток, содержащий никель и кобальт. На второй стадии раствор серной кислоты подвергают экстракции растворителем с использованием экстрагента, получая второй органический растворитель после экстракции, содержащий кобальт и кальций, и второй экстракционный остаток, содержащий никель. Изобретение позволяет повысить чистоту растворов сульфатов никеля и кобальта, используемых при получении положительных электродов, содержащих никель и кобальт, путем удаления примеси кальция, что обеспечит улучшение зарядной и разрядной емкости литий-ионных батарей. 6 з.п. ф-лы, 1 ил., 4 табл., 1 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 726 618 C1 (51) МПК C01G 53/10 (2006.01) C01G 51/10 (2006.01) B01D 11/04 (2006.01) C22B 3/38 (2006.01) C22B 23/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01G 51/003 (2019.08); C01G 53/003 (2019.08); C01G 51/10 (2019.08); C01G 53/10 (2019.08); B01D 11/0492 (2019.08); C22B 3/004 (2019.08); C22B 3/20 (2019.08); C22B 23/0461 (2019.08); C22B 26/20 (2019.08); C01P 2006/40 (2019.08); Y02P 10/234 (2019.08) (21)(22) Заявка: 2019109842, 01.09.2017 01.09.2017 Дата регистрации: (73) Патентообладатель(и): СУМИТОМО МЕТАЛ МАЙНИНГ КО., ЛТД. (JP) Приоритет(ы): (30) Конвенционный приоритет: 05.09.2016 JP 2016-172877 (85) Дата начала рассмотрения заявки PCT на национальной ...

Method for recovering metals

본 발명은, 함금속 (metalliferous) 시작 재료로로부터 금속을 회수하기 위한 방법 및 장치로서, i) 염화물-기반 침출 액에 상기 함금속 시작 재료를 침출시키는 단계; ii) 침출 단계 i) 로부터, 용해된 금속을 갖는 염화물 수용액을 인출하는 단계; iii) 금속 회수 공정 단계에서 상기 염화물 수용액으로부터 금속 유가물 (metal value) 을 회수하는 단계; iv) 가수분해된 암모니아를 공정 용액에 첨가함으로써 상기 금속 회수 공정 단계에서의 상기 염화물 수용액의 염화수소 양을 중화하여, 염화 암모늄을 형성하는 단계; v) 염화 암모늄 함유 공정 용액을, 칼슘-함유 시약을 첨가하여 염화칼슘 및 암모니아 가스를 발생시키는 암모늄 재생 단계에 인출하고, 암모니아를 상기 금속 회수 공정 단계 iii) 으로 다시 재순환시키는 단계; vi) H 2 SO 4 에 의해 CaCl 2 -용액을 재생하여, 침출 단계 i) 로의 재순환을 위한 HCl 수용액을 제공하는 단계를 포함하는, 상기 함금속 시작 재료로로부터 금속을 회수하기 위한 방법 및 장치에 관한 것이다. The present invention relates to a method and apparatus for recovering metal from a metalliferous starting material furnace, comprising the steps of: i) leaching said metal starting material into a chloride-based leach solution; ii) withdrawing from the leaching step i) an aqueous chloride solution with dissolved metal; iii) recovering a metal value from the chloride aqueous solution in a metal recovery process step; iv) neutralizing the amount of hydrogen chloride in the aqueous solution of chloride in the metal recovery process step by adding hydrolyzed ammonia to the process solution to form ammonium chloride; v) withdrawing the ammonium chloride-containing process solution into an ammonium regeneration step wherein calcium-containing reagent is added to generate calcium chloride and ammonia gas, and recirculating ammonia back to said metal recovery process step iii); vi) regenerating the CaCl 2 - solution by H 2 SO 4 , and providing an aqueous HCl solution for recycle to the leaching step i), in a method and apparatus for recovering metal from said furnace starting material furnace .

Method for selective extraction of iron (iii) and copper (ii) from aqueous solutions

Способ селективного извлечения ионов Fe(III) и Cu(II) из водных растворов экстракцией трибутилфосфатом включает контактирование экстрагента и раствора, перемешивание смеси, отстаивание и разделение фаз. При этом сначала осуществляют экстракцию ионов Fe(III) трибутилфосфатом из водного раствора смеси солей Fe(III) и Cu(II) с концентрацией 3 н. HCl, 240 NaCl г/дм и температурой 60°C порционным введением ТБФ при минимальном времени контакта раствора и экстрагента. Затем осуществляют реэкстракцию ионов железа из экстракта водой с осаждением из раствора оксида Fe 2 O 3 , а из рафината извлекают медь известными способами. Из рафината после экстракции железа трибутилфосфатом медь можно извлечь электролизом, гидролитическим осаждением, в виде сульфида меди, экстракцией другими экстрагентами. Способ обеспечивает высокую селективность процесса извлечения ионов железа и меди из водных растворов их солей. Технический результат заключается в эффективности селективного извлечения ионов Fe(III) и Cu(II) из водных растворов. 3 ил., 2 табл., 3 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 702 185 C1 (51) МПК C22B 3/38 (2006.01) C22B 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 3/20 (2019.05) (21)(22) Заявка: 2019114974, 15.05.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 04.10.2019 (73) Патентообладатель(и): Воропанова Лидия Алексеевна (RU) (45) Опубликовано: 04.10.2019 Бюл. № 28 (56) Список документов, цитированных в отчете о поиске: RU 2572927 С1, 20.01.2016. US 5030424 А1, 09.07.1991. RU 2581316 С1, 20.04.2016. JP 2009249674 A, 29.10.2009. US 20100119429 A1, 13.05.2010. 2 7 0 2 1 8 5 R U (54) СПОСОБ СЕЛЕКТИВНОГО ИЗВЛЕЧЕНИЯ ЖЕЛЕЗА (III) И МЕДИ (II) ИЗ ВОДНЫХ РАСТВОРОВ (57) Реферат: Способ селективного извлечения ионов Fe(III) Fe2O3, а из рафината извлекают медь известными и Cu(II) из водных растворов экстракцией способами. Из рафината после экстракции железа трибутилфосфатом включает ...

Method of extracting metals from stream rich in hydrocarbons and carbon-containing residues

FIELD: chemistry. SUBSTANCE: invention relates to extraction of metals from a stream rich in hydrocarbons and carbon-containing residues using a treatment area. The method includes the following steps: feeding said stream for primary treatment, which is carried out in one or more steps, where said stream is treated in the presence of a diluent in a mechanical treatment apparatus at temperature of 80-180°C, preferably 100-160°C, and is divided into a liquid phase and a solid phase to obtain a purified product, primary consisting of liquids, and a condensed residue (oil cake); optionally drying the separated condensed residue to remove therefrom a hydrocarbon component with a boiling point lower than 300-350°C; feeding the condensed residue, optionally dried, for secondary heat treatment, which includes: flameless pyrolysis of the condensed residue, carried out at 400-800°C; oxidising the pyrolysis residue, carried out in an oxidative medium and at 400-800°C, preferably 500-700°C, to obtain a product primarily consisting of sulphides/inorganic oxides of metals; selectively extracting metal components from the product obtained at secondary heat treatment step. EFFECT: extracting and recycling the active component of an operating catalyst. 21 cl, 5 dwg, 8 tbl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 552 617 C2 (51) МПК C10G 47/26 (2006.01) C10G 49/12 (2006.01) B01J 37/08 (2006.01) B01J 37/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011152048/04, 01.06.2010 (24) Дата начала отсчета срока действия патента: 01.06.2010 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): БАРТОЛИНИ Андреа (IT), КОРНАРО Уго (IT), ПОЛЛЕСЕЛЬ Паоло (IT), УДЕННЬ Поль Доминик (BE) (43) Дата публикации заявки: 20.07.2013 Бюл. № 20 R U (73) Патентообладатель(и): Эни С.п.А. (IT) 10.06.2009 IT MI2009A001023 (45) Опубликовано: 10.06.2015 Бюл. № 16 5008001 A, 16.04.1991. US 5094991 A, 10.03.1992. EP 0145105 A2, 05.06 ...

Obtaining scandium-containing concentrate and following removing the scandium oxide of high purity

Изобретение относится к способу переработки красного шлама при получении скандийсодержащего концентрата и оксида скандия, в котором ведут карбонизационное выщелачивание, сорбцию скандия на фосфорсодержащем ионите, десорбцию скандия и осаждение скандиевого концентрата. При этом содержание в нем Sc 2 O 3 составляет не менее 15 масс. % (в пересчете на сухое вещество), TiO 2 не более 3 масс. % (в пересчете на сухое вещество), ZrO 2 не более 15 масс. % (в пересчете на сухое вещество), а скандий в концентрате находится в виде смеси гидроксида Sc(OH) 3 с основной солью ScOHCO 3 ×4H 2 O. Получение оксида скандия высокой степени очистки из упомянутого концентрата включает растворение скандийсодержащего концентрата в серной кислоте. Техническим результатом является повышение степени извлечения скандия из красного шлама и повышение степени чистоты полученных продуктов. 3 н. и 11 з.п. ф-лы, 1 ил., 8 табл., 4 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 647 398 C2 (51) МПК C22B 59/00 (2006.01) C22B 3/12 (2006.01) C22B 3/20 (2006.01) C01F 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 59/00 (2006.01) (21)(22) Заявка: 2016132359, 04.08.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 04.08.2016 (43) Дата публикации заявки: 08.02.2018 Бюл. № 4 (45) Опубликовано: 15.03.2018 Бюл. № 8 (54) ПОЛУЧЕНИЕ СКАНДИЙСОДЕРЖАЩЕГО КОНЦЕНТРАТА И ПОСЛЕДУЮЩЕЕ ИЗВЛЕЧЕНИЕ ИЗ НЕГО ОКСИДА СКАНДИЯ ПОВЫШЕННОЙ ЧИСТОТЫ (57) Реферат: Изобретение относится к способу переработки вещество), а скандий в концентрате находится в красного шлама при получении виде смеси гидроксида Sc(OH)3 с основной солью скандийсодержащего концентрата и оксида ScOHCO3×4H2O. Получение оксида скандия скандия, в котором ведут карбонизационное высокой степени очистки из упомянутого выщелачивание, сорбцию скандия на концентрата включает растворение фосфорсодержащем ионите, десорбцию скандия ...

Nickel and/or cobalt recovery method (options)

FIELD: nonferrous metallurgy. SUBSTANCE: method involves ore or concentrate oxidation stage performed at pressure in presence of oxygen and acidic solution containing halide, copper, and sulfate ions to form nickel- and cobalt-containing lye from oxidation product suspension. Lye is treated by selective precipitation to give solid product containing nickel and cobalt hydroxide. Nickel and cobalt are leached out of solid product with ammonia solution into nickel- and cobalt-containing solution. The two metals are then separated from each other by extraction with solvent. Nickel and cobalt are isolated from their solutions electrochemically. Precious metals and other metals such as copper are recovered in similar manner. EFFECT: reduced operational and energetic expenses. 73 cl, 5 dwg, 1 tbl, 2 ex СЭЧЗУДЬЕС ПЧ с» РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК” ВИ `” 2 174 562 С 22В 2300 (13) С2 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98100271/02, 07.06.1996 (24) Дата начала действия патента: 07.06.1996 (30) Приоритет: 07.06.1995 Ц$ 08/488,128 (43) Дата публикации заявки: 27.10.1999 (46) Дата публикации: 10.10.2001 (56) Ссылки: Ч$ 3761566, 25.09.1970. СМИРНОВ В.И. и др. Металлургия меди, никеля и кобальта, ч.1. - М.: Металлургия, 1966, С.214-221. Ц$ 4600435, 15.07.1986. $Ч 263926, 25.10.1977. $0 531881, 08.10.1976. 0$ 4451819, 03.07.1984. СВ 2018132 А, 24.10.1979. ЕР 0209272 АЛ, 21.01.1987 0$ 3981968, 21.09.1976. ($ 4971662, 20.11.1990. 0$ 4039406, 02.08.1977. (85) Дата перевода заявки РСТ на национальную фазу: 08.01.1998 (86) Заявка РСТ: СА 96/00365 (07.06.1996) (87) Публикация РСТ: М/О 96/41029 (19.12.1996) (98) Адрес для переписки: 103055, Москва, а/я 11, Попеленскому Н.К. (71) (72) (73) (74) Заявитель: Коминко Енджиниэринг Сэвисиз Элтиди (СА) Изобретатель: ДЖОУНС Дэвид Л. (СА) Патентообладатель: Коминко Енджиниэринг Сэвисиз Элтиди (СА) Патентный поверенный: Попеленский Николай Константинович (54) СПОСОБ ...

Method of processing titanium-containing mineral raw materials

FIELD: technological processes. SUBSTANCE: invention relates to a hydrofluoride technology of processing titanium-containing mineral raw material, mainly ilmenite concentrate, and can be used in production of titanium dioxide with pigment purity, as well as iron oxide pigments. Method involves treatment of initial concentrate with solution of ammonium fluoride and/or ammonium hydrogen fluoride with heating, separation of obtained in solution fluoroammonium titanium salts from suspension of insoluble fluorine-ammonium iron salts, crystallization from ammonium hexafluorotitanate solution, its mixing with fine silicon dioxide of SiO 2 in stoichiometric ratio and subsequent pyrodihydrolysis of mixture in reactor with inner lining completely made of pressed silicon dioxide or fused quartz. Pyrodihydrolysis is carried out at stepped increase of temperature to 850–900 °C in steps of 50–100 °C and holding at each step for 20–60 minutes to obtain titanium dioxide. EFFECT: obtaining titanium dioxide with purity of 99,5 % and whiteness of 93 standard units, as well as increasing service life of equipment with simultaneous reduction of contamination of obtained titanium dioxide by products of corrosion of reactor material. 3 cl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 717 418 C1 (51) МПК C22B 34/12 (2006.01) C22B 3/04 (2006.01) C22B 3/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 34/1236 (2020.02); C22B 34/1245 (2020.02); C22B 34/1263 (2020.02); C22B 3/04 (2020.02); C22B 3/20 (2020.02) (21)(22) Заявка: 2019131486, 04.10.2019 04.10.2019 Дата регистрации: 23.03.2020 (45) Опубликовано: 23.03.2020 Бюл. № 9 2 7 1 7 4 1 8 R U (56) Список документов, цитированных в отчете о поиске: RU 2377183 C2, 27.12.2009. RU 2623974 C1, 29.06.2017. RU 2136771 C1, 10.09.1999. RU 2317252 C2, 20.02.2008. WO 2006079887 A2, 03.08.2006. WO 2019012401 A1, 17.01.2019. WO 2009090513 A1, 23.07.2009. (54) Способ переработки ...

Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese

This invention relates to treated geothermal brine compositions containing reduced concentrations of iron, silica, and manganese compared to the untreated brines. Exemplary compositions contain a concentration of manganese less than 10 mg/kg, a concentration of silica ranging from less than 10 mg/kg, and a concentration of iron less than 10 mg/kg, and the treated geothermal brine is derived from a Salton Sea geothermal reservoir.

Method for Recover Tantalum or Tantalum/Niobium

The present disclosure relates to a method for separating and recovering tantalum or tantalum / niobium from a raw material containing tantalum or tantalum / niobium with high efficiency, and is capable of effectively separating and recovering tantalum or tantalum / niobium without using hydrofluoric acid, , It is possible to suppress the problems arising from the use of the conventional MIBK extraction solvent and to perform stable operation.

Method for collecting high-grade scheelite concentrate and apparatus for collecting scheelite concentrate

本发明提供了一种用于收集高品级白钨精矿的方法和收集该白钨精矿的设备。用于收集高品级白钨精矿的方法包括以下步骤：将白钨矿矿石的细产物与水混合以形成浆料；通过对所述浆料进行浮选获得白钨矿粗精矿；并且通过对所述白钨矿粗精矿进行浮选获得白钨矿清洁精矿，其中获得所述白钨矿粗精矿的步骤包括：向所述浆料中依次添加pH调节剂和抑制剂的步骤，其中，所述pH调节剂包括Na 2 CO 3 ，pH调节剂的用量为2kg/t～3.5kg/t，且所述抑制剂包括Na 2 SiO 3 ，抑制剂的用量为3.5kg/t～4.5kg/t。

Method for processing slurchen of acid mine water

FIELD: technological processes; metallurgy.SUBSTANCE: invention relates to the field of hydrometallurgy of heavy non-ferrous metals and can be used in the complex processing of sludge neutralizing acidic mine waters and processing sewage sludge from electroplating and similar industries. Sludge sour mine water simultaneously crushed to a particle size of 12–18 microns in a bead mill and leached with 40 % sulfuric acid to a pH of 3–3.5 at a temperature of 70–80 °C for 2.5–3 hours. Suspension is cooled to a temperature of 40–50 °C, gypsum is separated. Resulting filtrate is mixed with the spent etching solution of aluminum alloys to achieve the required pH in three stages. At each stage, precipitates in the form of hydroxides – copper, zinc, and iron – are isolated from the mixture obtained. At the 1stage, the neutralization is carried out to a pH of 5.0–6.0, at the 2– to pH 6.2–7.2, on the 3– to a pH of 7.2–8.0. At each stage after settling the mixture is cooled to a temperature of 40–50 °C, the precipitated precipitates are simultaneously dried and crushed to a particle size of 15–20 mcm in combined “fluidized bed” dryers to produce pigments. Filtrates of the 1and 2stages are transferred to the next stage, and after the 3stage, dust is mixed with lime to a pH of 8.0–9.7, the precipitate is separated in the form of gypsum, which is used in construction, and the remaining filtrate is returned to process.EFFECT: method allows waste-free processing of sludge with the production of marketable products.1 cl, 1 dwg, 2 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 690 330 C1 (51) МПК C22B 3/08 (2006.01) C22B 3/20 (2006.01) C22B 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 3/08 (2018.08); C22B 3/20 (2018.08); C22B 7/007 (2018.08) (21)(22) Заявка: 2018121921, 13.06.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 31.05.2019 (45) Опубликовано: 31.05.2019 Бюл. № 16 2 6 9 0 3 3 0 ...

Apparatus for recovering metal ions from aqueous solution and method for recovering metal ions thereby

The present invention relates to an apparatus to recover valuable metal ions from an aqueous solution, and a method to recover the valuable metal ions using the same. Provided are the apparatus to recover the valuable metal ions comprising: an adsorption/desorption reactor vessel including at least one ion recovery column to absorb metal ions in a supplied aqueous solution; a washing water storage tank to store washing water supplied to the ion recovery column where the metal ions are adsorbed; and a leachate storage tank to store leachate eluting the metal ions adsorbed by being supplied to the ion recovery column, and the method to recover the valuable metal ions using the same. The present invention has the effect of greatly reducing energy consumed in an ion recovery by being able to recover the valuable metal ions through a continuous process, as being environmentally friendly by being able to continuously supply the washing water by recycling the washing water used in a process of adsorption, desorption, and recovery; often without discharging the washing water to the outside.

GRANULES OF MOLECULAR IMPRINTED POLYMERS FOR EXTRACTION OF METALS AND THEIR APPLICATION

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 104 571 A (51) МПК B01J 20/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018104571, 08.06.2016 (71) Заявитель(и): 6С ВЭЙВ ИННОВЭЙШНС КОРП. (US) Приоритет(ы): (30) Конвенционный приоритет: 27.07.2015 US 62/197,360 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.02.2018 R U (43) Дата публикации заявки: 27.08.2019 Бюл. № 24 (72) Автор(ы): ГЛЮКМАН Джонатан П. (US), САУТАРД Глен Э. (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/019181 (02.02.2017) R U (54) ГРАНУЛЫ МОЛЕКУЛЯРНО ИМПРИНТИРОВАННЫХ ПОЛИМЕРОВ ДЛЯ ЭКСТРАКЦИИ МЕТАЛЛОВ И ИХ ПРИМЕНЕНИЕ (57) Формула изобретения 1. Множество гранул макропористого полимера, содержащих сополимер, имеющий множество комплексообразующих полостей, которые избирательно связывают ионмишень металла, где сополимер получают из: (a) мономера лиганда, который является катионным или анионным и находится в комплексе с замещающим неметаллическим ионом, (b) мономера нелиганда, и (c) поперечно сшивающего мономера; где: (i) заряд в комплексообразующей полости сополимера противоположен заряду ионамишени металла и (ii) замещающий неметаллический ион имеет по существу форму и заряд аналогичные иону-мишени металла. 2. Гранулы макропористого полимера по п. 1, где мономер лиганда представляет собой катион. 3. Гранулы макропористого полимера по п. 2, где ион-мишень металла представляет собой анионный комплекс металла. 4. Гранулы макропористого полимера по п. 3, где замещающий неметаллический ион представляет собой органический анион. 5. Гранулы макропористого полимера по п. 3, где замещающий неметаллический Стр.: 1 A 2 0 1 8 1 0 4 5 7 1 A Адрес для переписки: 190000, Санкт-Петербург, БОКС-1125 2 0 1 8 1 0 4 5 7 1 US 2016/036370 (08.06.2016) ион представляет собой неорганический анион. 6. Гранулы макропористого полимера по п. 1, где ион-мишень металла выбран из группы, состоящей из Au(CN)2-, Ag(CN)2-, AuCl4-, Au(S2O3)23-, ...

Production of metal nanoparticles

A process for the production of metal nanoparticles. The process comprises a rapid mixing of a solution of at least about 0.1 mole of a metal compound that is capable of being reduced to a metal by a polyol with a heated solution of a polyol and a substance that is capable of being adsorbed on the nanoparticles.

Arc furnace smelting system and method

Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same

提供了从包含悬浮固体物的工业生产物流中絮凝和分离悬浮固体物的方法和组合物。所述方法包括以下步骤：向所述物流中加入有效量的水包油包水乳液聚合物，使悬浮固体物发生絮凝，并将絮凝的固体物从其中分离出来。所述组合物是水溶性聚合物的水包油包水乳液，其中连续相是水溶性盐的水溶液。

Leaching aids and methods of using leaching aids

Method for selective removal of molybdenum from solution containing same

Изобретение относится к извлечению молибдена из растворов. Раствор, содержащий молибден, подкисляют до кислого pH путем добавления неорганической кислоты, затем добавляют по меньшей мере один органический растворитель и непрерывно перемешивают для образования водно-органической эмульсии. В полученную эмульсию добавляют по меньшей мере один ксантогенат щелочного металла для образования комплекса с молибденом, в котором мольное отношение молибден/ксантогенат щелочного металла составляет от 1/6 до 1/2, поддерживают эмульсию при кислом pH путем добавления неорганической кислоты и прекращают перемешивание с обеспечением отделения водной фазы от органической фазы. Обеспечивается легкое отделение молибдена от раствора и получение стабильной формы ксантогената молибдена. 10 з.п. ф-лы, 8 ил., 3 табл., 6 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 553 174 C2 (51) МПК C22B 3/26 (2006.01) C22B 3/44 (2006.01) C22B 34/34 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013128534/02, 25.11.2011 (24) Дата начала отсчета срока действия патента: 25.11.2011 (72) Автор(ы): БАРТОЛИНИ,Андреа (IT), СЕНТИМЕНТИ,Эмилио (IT) (73) Патентообладатель(и): ЭНИ С.П.А. (IT) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 20.01.2015 Бюл. № 2 R U 26.11.2010 IT MI2010A002200 (45) Опубликовано: 10.06.2015 Бюл. № 16 B2, 21.02.2006. RU 2195510 C2, 27.12.2002. RU 2186865 C2, 10.08.2002 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.06.2013 (86) Заявка PCT: 2 5 5 3 1 7 4 (56) Список документов, цитированных в отчете о поиске: RU 2287599 C2, 20.11.2006. US 7002044 2 5 5 3 1 7 4 R U (87) Публикация заявки PCT: WO 2012/069625 (31.05.2012) Адрес для переписки: 129090, Москва, ул. Большая Спасская, 25, стр. 3, ООО "Юридическая фирма "Городисский и Партнеры" (54) СПОСОБ СЕЛЕКТИВНОГО УДАЛЕНИЯ МОЛИБДЕНА ИЗ СОДЕРЖАЩЕГО ЕГО РАСТВОРА (57) Реферат: Изобретение относится к извлечению мольное отношение ...

Method for recovery of silver from sulphur-containing zinc leach residues

本发明涉及回收银的方法和用于自直接锌浸取残余物中回收银的浸出工艺的控制方法、用于自直接锌浸出残余物中回收银的设备、用于进行所述控制方法的控制系统和计算机程序。所述方法包括以下步骤：1)银浸出步骤，其中对所述直接锌浸出残余物进行氧化性氯化物浸出，所述银浸出步骤在下列条件下进行：i)浸出溶液的氯化物浓度在25-70g/L范围内，ii)浸出溶液的pH值在1.6-2.6的范围内，iii)氧化还原电位小于460mV(Pt vs.Ag/AgCl)；2)银回收步骤，其中自含银的浸出溶液中回收银。

Method for selective extraction of zinc (ii) and copper (ii) from aqueous solutions

Способе селективного извлечения ионов Zn (II) и Cu (II) из водных растворов экстракцией трибутилфосфатом включает контактирование экстрагента и раствора, перемешивание смеси, отстаивание и разделение фаз. При этом селективное извлечение ионов Zn (II) и Cu (II) из водных растворов смеси их солей осуществляют сначала экстракцией ионов Zn (II) трибутилфосфатом из водного раствора с концентрацией 3н. HCl, 240 NaCl г/дм 3 и температурой 20°С порционным введением ТБФ. Затем осуществляют реэкстракцию ионов цинка из экстракта водой и извлечение меди из рафината. Из рафината после экстракции цинка трибутилфосфатом медь можно извлечь путем электролиза, гидролитического осаждения, в виде сульфида меди. Способ обеспечивает высокую селективность процесса извлечения ионов цинка и меди из водных растворов их солей. 4 ил., 2 табл., 3 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 702 886 C1 (51) МПК C22B 3/38 (2006.01) C22B 19/34 (2006.01) C22B 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 3/20 (2019.05) (21)(22) Заявка: 2019114925, 15.05.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 11.10.2019 (73) Патентообладатель(и): Воропанова Лидия Алексеевна (RU) (45) Опубликовано: 11.10.2019 Бюл. № 29 (56) Список документов, цитированных в отчете о поиске: RU 2571743 С1, 20.12.2015. RU 2572927 С1, 20.01.2016. US 5030424 А1, 09.07.1991. RU 2581316 С1, 20.04.2016. JP 2009249674 A, 29.10.2009. US 20100119429 A1, 13.05.2010. 2 7 0 2 8 8 6 R U (54) СПОСОБ СЕЛЕКТИВНОГО ИЗВЛЕЧЕНИЯ ЦИНКА (II) И МЕДИ (II) ИЗ ВОДНЫХ РАСТВОРОВ (57) Реферат: Способе селективного извлечения ионов Zn температурой 20°С порционным введением ТБФ. (II) и Cu (II) из водных растворов экстракцией Затем осуществляют реэкстракцию ионов цинка трибутилфосфатом включает контактирование из экстракта водой и извлечение меди из экстрагента и раствора, перемешивание смеси, рафината. Из рафината после экстракции цинка отстаивание и разделение ...

Method of extraction of metal

Способ может быть использован для гидрометаллургической обработки металлосодержащих руд и концентратов, в частности для извлечения металлов из руд в присутствии ионов галогена. Способ предусматривает окисление руды или концентрата под давлением в присутствии кислорода и кислого раствора, содержащего ионы галогена и источник ионов бисульфата и сульфата. С использованием данного способа могут быть извлечены медь, цинк и другие металлы, такие как благородные, например золото и серебро; обеспечивается повышение степени извлечения металлов и удешевление процесса. 22 з.п. ф-лы, 5 ил., 1 табл. сбгблЬс ПЧ с» (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВЦ ”” 2 179 192 (51) МПК” (13) С2 С 22 В 3/08/С 22 В 15:00, 19:00, 23:00 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98100309/02, 19.01.1996 (24) Дата начала действия патента: 19.01.1996 (30) Приоритет: 07.06.1995 Ц$ 08/488,128 (43) Дата публикации заявки: 27.10.1999 (46) Дата публикации: 10.02.2002 (56) Ссылки: СА 2099333, 29.12.1994. 4$ 4039406, 02.08.1977. Ц$ 4338168, 06.07.1982. 0$ 4911662, 20.11.1990. 5Ц 392127, 20.10.1973. ЗИ 7122911, 25.03.1980. ЕР 010272Ъ А, 14.03.1984. ЕК 235117, 09.12.1977. (85) Дата перевода заявки РСТ на национальную фазу: 08.01.1998 (86) Заявка РСТ: СА 96/00036 (19.01.1996) (87) Публикация РСТ: М/О 96/41027 (19.12.1996) (98) Адрес для переписки: 103055, Москва, а/я 11, Попеленскому Н.К. (71) (72) (73) (74) Заявитель: Коминко Енджиниэринг Сэвисиз Элтиди (СА) Изобретатель: ДЖОУНС Дэвид Л. (СА) Патентообладатель: Коминко Енджиниэринг Сэвисиз Элтиди (СА) Патентный поверенный: Попеленский Николай Константинович (54) СПОСОБ ИЗВЛЕЧЕНИЯ МЕТАЛЛА (57) Способ может быть использован для гидрометаллургической обработки металлосодержащих руд и концентратов, в частности для извлечения металлов из руд в присутствии ионов — галогена. Способ предусматривает окисление руды — или концентрата под давлением в присутствии кислорода и кислого раствора, содержащего ионы галогена ...

Method for purifying zinc sulphate solutions from chlorine

FIELD: chemistry.SUBSTANCE: invention relates to purification of electrolytes from chloride ions. Sulphate zinc solutions are purified from chloride ions by adding bismuth hydroxosulphate thereto at a molar ratio of bismuth to chlorine of 1.05 to 1.3, at a temperature of 18 to 40°C.EFFECT: method provides a possibility of increasing the degree of purification of zinc solutions from chloride ions while simplifying the course of the process.1 cl, 2 tbl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 759 591 C1 (51) МПК C22B 19/20 (2006.01) C01G 1/06 (2006.01) C22B 3/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 19/20 (2021.08); C01G 1/06 (2021.08); C22B 3/20 (2021.08) (21)(22) Заявка: 2021112804, 30.04.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 15.11.2021 (45) Опубликовано: 15.11.2021 Бюл. № 32 (54) Способ очистки сульфатных цинковых растворов от хлора (57) Реферат: Изобретение относится к очистке равном 1,05-1,3, температуре 18-40°С. Способ электролитов от хлорид-ионов. Сульфатнопозволяет повысить степень очистки цинковых цинковые растворы очищают от хлорид-ионов растворов от хлорид-ионов при упрощении добавлением к ним висмута гидроксосульфата проведения процесса. 1 з.п. ф-лы, 2 табл., 1 пр. при молярном отношении висмута к хлору, R U 2 7 5 9 5 9 1 (56) Список документов, цитированных в отчете о поиске: RU 2372413 C1, 10.11.2009. SU 1388448 A1, 15.04.1988. RU 2587449 C1, 20.06.2016. US 1901925 A1, 21.03.1933. US 7037482 B2, 02.05.2006. Стр.: 1 C 1 C 1 Адрес для переписки: 630128, г.Новосибирск, ул. Кутателадзе, 18, Институт химии твердого тела и механохимии, Немудрый Александр Петрович 2 7 5 9 5 9 1 (73) Патентообладатель(и): Федеральное государственное бюджетное учреждение науки Институт химии твердого тела и механохимии Сибирского отделения Российской академии наук (RU) (RU) Приоритет(ы): (22) Дата подачи заявки: 30.04.2021 R U 30.04.2021 (72) Автор(ы): Юхин Юрий ...

Patent RU2018104571A3

ВУ“? 2018104571`” АЗ Дата публикации: 07.11.2019 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж Я «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 201810457 1/05(006853) 08.06.2016 РСТО$2016/036370 08.06.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 62/197,360 27.07.2015 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ГРАНУЛЫ МОЛЕКУЛЯРНО ИМПРИНТИРОВАННЫХ ПОЛИМЕРОВ ДЛЯ ЭКСТРАКЦИИ МЕТАЛЛОВ И ИХ ПРИМЕНЕНИЕ Заявитель: 6С ВЭЙВ ИННОВЭЙШНС КОРП. 0$ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: р [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ВО1. 20/26 (2006.01) ВОО 15/04 (2006.01) ВОТО 15/38 (2006.01) ВО1.] 20/28 (2006.01) ВОТО 15/34 (2006.01) С22В 3/24 (2006.01) ВОТО 15/36 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВО11 20/26 (2006.ОТ)ГВОТО 15/04 (2006.01) ВОТО 15/38 (2006.0 0)Т ВО11 20/28 (2006.01) ВО1Ш 15/34 (2006.01)1 С22В 3/24 (2006.01) ВОТЬ 15/36 (2006.011 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске ( ...

Hydro-metallurgical processing of anode slime

FIELD: mining. SUBSTANCE: method of precious metals extracting from anode slime produced with electrolysis of copper includes: (a) leaching the anode slime in the sulfuric acid aqueous solution to remove the leachable chlorides and with obtaining of a first leach residue depleted of chlorides. Further performing (b) the first leaching residue leaching under pressure to dissolve Ag and Se and to produce the first filtrate containing Ag and Se and a second leaching residue depleted of Ag and Se. Further conducting (c) the second leach residue leaching with the hydrochloric acid aqueous solution to dissolve Au and platinum group metals (PGM) with production of a second filtrate containing Au and PGM and a final leaching residue. EFFECT: technical result is simplification of the process and reduction of emissions to the environment due to elimination of the slurries melting. 15 cl, 1 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 650 663 C1 (51) МПК C22B 11/00 (2006.01) C22B 3/06 (2006.01) C22B 61/00 (2006.01) C22B 30/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 11/00 (2006.01) (21)(22) Заявка: 2016147513, 27.05.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Оутотек (Финлэнд) Ой (FI) Дата регистрации: 16.04.2018 Copper 95, International Conference Vol. III, 1995, pp. 41-57. RU 2071978 C1, 20.01.1997. RU 2397259 С1, 20.08.2010. DE 2737928 A1, 02.03.1978. US 4293332 A, 06.10.1981. CA1116869 А, 26.01.1982. US 4352786 A, 05.10.1982. 28.05.2014 FI 20145484 (45) Опубликовано: 16.04.2018 Бюл. № 11 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.12.2016 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/181446 (03.12.2015) R U 2 6 5 0 6 6 3 Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" (54) Гидрометаллургическая переработка анодного шлама (57) Реферат: Способ извлечения благородных металлов из обедненного Ag и Se. Затем ведут (c) ...

Method of isolating copper from sulfur-bearing copper ore or concentrate

FIELD: hydrometallurgy. SUBSTANCE: ore or concentrate is subjected to oxidation under pressure in presence of oxygen and acidic chloride solution to give oxidation product and insoluble basic copper sulfate salt. Oxidation under pressure is performed in presence of bisulfate and sulfate ions' source, for example, sulfuric acid. Amount of added sulfate source provides at least stoichiometric amount of sulfate ions required for formation of basic copper sulfate salt, which is less than amount of in situ generated sulfate at oxidation under pressure. In typical version, oxidation under pressure is effected at specified H + /Cu ratio such that filtrate of oxidation product containing chief part of ore or concentrate copper whereas basic copper salt contains insignificant part of concentrate copper. Invention provides choice of H + /Cu ratio corresponding to content copper in ore or concentrate: value of this ratio is increased as content of copper in ore or concentrate decreases. In additional version, basic copper salt is dissolved in subsequent normal-pressure leaching stage. Concentrated copper solution that is suited to electrochemical isolation of copper is prepared by the aid of liquid extraction. This method is also satisfactory for isolation zinc and copper. EFFECT: increased degree of copper isolation. 55 cl, 4 dwg, 10 tbl, 11 ex ЭД гс ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2137 856 ' 61) МК” С 22 В 15/00 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97112397102, 20.12.1994 (24) Дата начала действия патента: 20.12.1994 (30) Приоритет: 20.12.1994 УМО РСТ/ЮА 94/00696 (46) Дата публикации: 20.09.1999 (56) Ссылки: Ц$ 4039406 А, 02.08.77. 4$ 4338168 А, 06.07.82. 5Ц 392127 А, 20.10.13. $Ч 629890 А, 25.08.78. 4$ 4632738 А, 30.12.86. ЕР 0102725 А, 14.03.84. ЕК 235117ГА, 09.12.77. (85) Дата перевода заявки РСТ на национальную фазу: 21.07.97 (86) Заявка РСТ: СА 94100696 (20.12.94) (87) Публикация РСТ: М/О ...

Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals

一种从矿石或浓缩物中提取镍/钴有价物的方法,它包括步骤:将该矿石或浓缩物,在氧气及含有卤化物、铜和硫酸根离子的酸性溶液存在下,进行加压氧化,从而从形成的加压氧化浆料中获得含镍/钴有价物的溶液。对该溶液进行选择性沉淀处理,以获得含镍/钴氢氧化物的固体。对该固体再用铵盐溶液进行镍/钴溶浸,以产生含镍/钴有价物的溶浸溶液和残渣。镍/钴有价物通过溶剂萃取而分离,分别产生适用于电解镍和钴的溶液。本发明方法还可回收贵金属和其他金属如铜。

Hydroxamatic polymer "water-in oil-in water" emulsions

FIELD: process engineering. SUBSTANCE: invention relates to flocculants and method of their use for flocculation and separation of suspended solid particles from industrial treated flow. Proposed method comprises the following stages: adding water soluble polymer to the flow in amount sufficient for flocculation and separation of suspended solid particles from industrial treated flow. Note here that water soluble polymer is hydroxamatic polymer "water-in oil-in water" emulsion with continuous phase containing water soluble salt, e.g. salt containing aluminium or calcium. Treated flow represents a Bayer flow, in particular, flow of aluminium oxide trihydrate or red slurry flow. Hydroxamatic polymer may represent, for example, acrylamide polymer. Composition with hydroxamatic polymer "water-in oil-in water" emulsion comprises water solution of water soluble salt of aluminium or calcium. Note here that hydroxamatic polymer is a derivative of acrylamide or acrylate ether. EFFECT: higher stability of water soluble polymer in storage, particularly, at lower temperatures. 17 cl, 8 tbl, 58 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 415 694 (13) C2 (51) МПК B01D 21/01 (2006.01) C02F 1/56 (2006.01) C01F 7/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2007135349/05, 25.01.2006 (24) Дата начала отсчета срока действия патента: 25.01.2006 (72) Автор(ы): БАЛЛЕНТАЙН Фрэнклин А. (US), ЛЭВЕЛЛИН Моррис (US) R U (73) Патентообладатель(и): САЙТЕК ТЕКНОЛОДЖИ КОРП. (US) Приоритет(ы): (30) Конвенционный приоритет: 25.02.2005 US 60/656,474 (43) Дата публикации заявки: 27.03.2009 Бюл. № 9 2 4 1 5 6 9 4 (45) Опубликовано: 10.04.2011 Бюл. № 10 (56) Список документов, цитированных в отчете о поиске: US 4767540 A, 30.08.1988. RU 2189357 C2, 20.09.2002. RU 2147013 C1, 27.03.2000. RU 2174987 C2, 20.10.2001. US 6608137 B1, 19.08.2003. 2 4 1 5 6 9 4 R U (86) Заявка PCT: US 2006/002310 (25 ...

Manufacturing method of pure nickel sulfate from leaching residue being removed cobalt of lithium secondary battery

More particularly, the present invention relates to a method for producing high purity nickel sulfate from a cobalt extraction residue of a lithium secondary battery, and more particularly, to a method for producing high purity nickel sulfate from a lithium secondary battery, ; Mixing the nickel-extracted organic phase with a stripping agent to concentrate the nickel; And crystallizing the concentrated nickel by heating and then cooling the nickel. The present invention also relates to a method for producing high purity nickel sulfate from a cobalt extraction residue of a lithium secondary battery.