Способ переработки перовскитового концентрата

Изобретение относится к сернокислотной переработке титано-редкометалльного сырья с получением титановой и редкометалльной продукции. В перовскитовый концентрат добавляют минеральный кремнийсодержащий титанат кальция до обеспечения массового отношения 1:0,1-0,5. Полученную смесь измельчают, обрабатывают серной кислотой с концентрацией 35-45% при Т:Vж=1:0,8-1,5 и температуре 100-105°С в течение 0,5-1,0 ч. Образовавшуюся пульпу разбавляют концентрированной серной кислотой до обеспечения отношения Т:Vж=1:2,5-3,5, после чего выдерживают в режиме кипения в течение 1,5-3,0 ч с получением суспензии. Затем суспензию фильтруют с получением титан-ниобийсодержащего раствора и кальцийсодержащей твердой фазы. Способ обеспечивает повышение экологичности вследствие снижения степени извлечения тория в получаемый титан-ниобийсодержащий раствор и высокую степень извлечения ценных компонентов. 1 з.п. ф-лы, 4 пр.

BENEFICIATION OF WEATHERED ILMENITE ORE MATERIALS

... 1431552 Upgrading Ti ores LAPORTE INDUSTRIES Ltd 22 March 1973 [7 Jan 1972] 50276/75 Divided out of 1431551 Heading C1N A weathered ilmenite or leucoxene is activated to render it more readily acid leachable by heating at 600-950‹ C. in reducing or oxidizing conditions, the heating being discontinued before the proportion of Fe which has undergone a change in oxidation state exceeds 1/ 15 by weight. When treated under oxidizing conditions, the maximum treatment period is 45 minutes and an atmosphere containing not more than 12% vol., preferably 4-7%, is used. The treatment preferably lasts at least 10 minutes. When the ore is treated in reducing conditions, it may be subjected to oxidation prior to leaching by heating in air at 700-850‹ C. to convert all or part of ferrous content to ferric. The treated ore may be subjected to a magnetic separation prior to leaching. Leaching is preferably performed with HCl, optionally containing Fe2+ ions, at above 100‹ C. in a counter ...

Process for utilisation of titanium materials containing iron

... 275,580. Titan Co. Aktieselskabet. Aug. 3, 1926, [Convention date]. Extracting.-Titaniferous materials are heated with a reducing agent, with or without magnesium, alkali, or alkaline earth compounds, to reduce iron present without appreciably reducing titanium, and then treated with an acid solvent, such as 74 per cent sulphuric acid, which dissolves or renders soluble only the titanium; from the product iron may be recovered, as by magnetic means preferably in presence of bases or flotation agents. Solid, liquid, or gaseous reducing agents may be used.

TITANIUMEISENERZ REFINEMENT

Process for the preparation of a pigment made up containing of titanium dioxide glows, and produced in conformity with those obtained

Manufactoring process of titanium dioxide pigments

설페이트 티탄 슬래그로 금홍석을 제조하는 방법

... 본 발명은 설페이트 티탄 슬래그로 금홍석을 제조하는 방법에 관한 것으로, 상기 방법은 설페이트 티탄 슬래그 분쇄, 개질 처리, 첨가제 첨가 및 산성 이물질 제거 등 단계를 포함한다. 본 발명에 따른 방법을 사용하여 얻은 인조 금홍석은 염소화 방법으로 티탄백을 생산하는 요구에 완전히 부합되고, 원료는 광범위한 적응성을 가진다. 마이크로 웨이브 가열을 가열 방식으로 선택하므로, 본 발명에 필요한 기기 관련 투자는 기존기술에 비하여 17% 감소되고, 에너지 소모가 25% 감소되며, 인조 금홍석의 순도는 91% 이상에 달하고, 부산물이 비교적 적으며 환경 오염 또한 적어 에너지 절감 및 배출 감량과 청정 야금(clean metallurgy)의 요구에 부합된다.

TITANIFEROUS ORE BENEFICIATION

This invention relates to a process for beneficiating a titaniferous ore. The process comprises leaching the titaniferous ore with sulfuric acid to form a leached ore, calcining the leached ore in the presence of oxygen to form a calcined ore, and leaching the calcined ore with sulfuric acid, hydrochloric acid, and/or nitric acid to form a beneficiated ore. The leached ore is not reduced prior to or following calcination.

Verfahren zur Herstellung von synthetischem Rutil aus titanhaltiger Schlacke, die Magnesium enthält

Titaniferous ore beneficiation

TITANIFEROUS ORE BENEFICIATION

Manufactoring process of titanium salts

PROCESS FOR CLASS IV B METALS ORE REDUCTION (IMPROVEMENT)

Способ переработки ильменитового концентрата

FIELD: production technology. SUBSTANCE: invention relates to processing of natural titanium-containing raw material with production of rutile modification titanium dioxide, which is used in paint and lacquer and cellulose and paper industries, in production of plastics and rubber articles, as well as a universal bleaching agent in food, cosmetic and pharmaceutical industry. Ilmenite concentrate processing method involves its sulphatization, conversion of iron compounds to the solution and calcination at temperature in range from 870 to 900 °C. Sulphatization of the ilmenite concentrate with particle size of up to 40 mcm is carried out with ammonium sulphate which is mixed with the concentrate in weight ratio of ilmenite concentrate: ammonium sulphate equal to 1:(3–4). Obtained product is heated to calcination temperature at rate of 2.5 deg/min and held at the achieved temperature for 5.0–5.5 hours. Then, calcined product is treated with sulfuric acid solution with concentration of 20–25 g/l at T:I = 1:(5–10) with conversion of iron into soluble form. Titanium dioxide precipitate is obtained, which is filtered and washed with water. EFFECT: invention increases efficiency of processing ilmenite concentrate by simplifying the process, reducing the number of steps and reducing costs. 1 cl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 715 192 C1 (51) МПК C01G 23/053 (2006.01) C22B 34/12 (2006.01) C22B 1/06 (2006.01) C22B 3/08 (2006.01) C01G 49/14 (2006.01) C01C 1/242 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01G 23/0532 (2019.08); C22B 34/1204 (2019.08); C22B 34/124 (2019.08); C22B 1/06 (2019.08); C22B 3/08 (2019.08); C01G 49/14 (2019.08); C01C 1/242 (2019.08) (21)(22) Заявка: 2019104793, 20.02.2019 20.02.2019 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 20.02.2019 (45) Опубликовано: 25.02.2020 Бюл. № 6 2 7 1 5 1 9 2 R U (54) Способ переработки ильменитового концентрата (57) Реферат: ...

Method for the hydrometallurgical extraction of vanadium. titanium and iron

Treatment of a wide range of titanium oxide compounds

Process

The present invention relates to a process for recovering a primary metal residue from a metal-containing composition.

СПОСОБ ПЕРЕРАБОТКИ КВАРЦ-ЛЕЙКОКСЕНОВОГО КОНЦЕНТРАТА

Изобретение относится к химии титана, в частности к переработке кварц-лейкоксеновых концентратов, и может быть использовано для получения диоксида титана. Способ переработки кварц-лейкоксенового концентрата включает обжиг при температуре 1350°С в присутствии добавки с последующим охлаждением и выщелачиванием 55-80% серной кислотой при соотношении Т:Ж 1:2-10 и температуре 160-170°С в течение 4-6 часов, при этом в качестве добавки используют соединения кальция в форме карбоната, и/или оксида, и/или гидроксида, причем массовое соотношение кварц-лейкоксенового концентрата и кальцийсодержащей добавки составляет 1:0,3-0,5. Изобретение направлено на повышение производительности процесса за счет увеличения степени извлечения и повышения химической активности получаемого продукта. 3 табл., 9 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 771 400 C1 (51) МПК C22B 34/12 (2006.01) C22B 3/08 (2006.01) C22B 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 34/12 (2022.02); C22B 34/1213 (2022.02); C22B 34/1236 (2022.02); C22B 34/124 (2022.02); C22B 3/08 (2022.02); C22B 1/02 (2022.02) (21)(22) Заявка: 2021136309, 09.12.2021 09.12.2021 Дата регистрации: 04.05.2022 (45) Опубликовано: 04.05.2022 Бюл. № 13 Адрес для переписки: 125047, Москва, Миусская пл., 9, Российский химико-технологический университет имени Д.И. Менделеева, патентно-лицензионный отдел 2 7 7 1 4 0 0 C 1 (56) Список документов, цитированных в отчете о поиске: RU 2759100 C1, 09.11.2021. RU 2734513 C1, 19.10.2020. RU 2001138 C1, 15.10.1993. RU 2068393 C1, 27.10.1996. US 5885536 A1, 23.03.1999. (54) СПОСОБ ПЕРЕРАБОТКИ КВАРЦ-ЛЕЙКОКСЕНОВОГО КОНЦЕНТРАТА (57) Реферат: Изобретение относится к химии титана, в используют соединения кальция в форме частности к переработке кварц-лейкоксеновых карбоната, и/или оксида, и/или гидроксида, концентратов, и может быть использовано для причем массовое соотношение кварцполучения диоксида титана. Способ переработки ...

Способ переработки сфенового концентрата

FIELD: technological processes.SUBSTANCE: invention can be used in the production of sorbents for the purification of liquid effluents from heavy metals and radionuclides, filler for paint and varnish and building materials. Method for processing sphene concentrate includes its grinding and decomposition by dilute sulfuric acid upon heating with transfer of titanium into the solution, and calcium and silicon into a solid residue. Titanium-containing solution is separated from the silicon-silicon residue, which is treated to form a filler. Salting out reagent is introduced into the titanium-containing solution in the form of sulfuric acid until a concentration of 850–950 g/l of HSOand heated to boiling. Resulting sulfuric acid liquid phase is sent to the decomposition of the concentrate. Titanium solid phase is treated with phosphoric acid at a concentration of 20–50 % HPOat a mass ratio PO:TiO, equal to 2–3.5:1. Resulting suspension is filtered with separation into a phosphate filtrate and a titanium phosphate precipitate, which is washed with water and dried. Phosphoric acid filtrate is used in the treatment of titanium solid phase.EFFECT: invention makes it possible to increase the ecological compatibility, to increase the sorption capacity of titanium phosphate, effectively.3 cl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) (19) RU (11) (13) 2 665 759 C1 (51) МПК C01G 23/00 (2006.01) C22B 3/08 (2006.01) C22B 34/12 (2006.01) C01B 25/37 (2006.01) C09C 1/02 (2006.01) C09C 1/28 (2006.01) B01J 20/02 (2006.01) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01G 23/00 (2018.05); C22B 3/08 (2018.05); C22B 34/1213 (2018.05); C22B 34/124 (2018.05); C01B 25/372 (2018.05); C09C 1/02 (2018.05); C09C 1/28 (2018.05); B01J 20/0211 (2018.05); B01J 20/0292 (2018.05) (21)(22) Заявка: 2017145831, 25.12.2017 25.12.2017 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 25.12.2017 (45) Опубликовано: 04.09.2018 Бюл. № 25 2 6 6 5 7 5 9 R U (54) ...

Способ получения концентрата двуокиси титана для производства пигментной двуокиси титана по хлоридному методу

Process

BENEFICIATION OF WEATHERED ILMENITE ORE MATERIALS

... 1431551 Upgrading Ti ores LAPORTE INDUSTRIES Ltd 22 March 1973 [7 Jan 1972] 910/72 Heading C1N A weathered ilmenite or a leucoxene is activated to render it more readily acid leachable by maintaining it at 600-950‹ C.. for not more than 45 minutes under conditions which are substantially non-oxidizing and non-reducing, e.g. vacuum, N 2 , A. The atmosphere may be heated before contact with the ore. Contact time is preferably greater than 10 minutes. The treated ore may be oxidized in air at 700-850‹ C. to convert all, or a part of, Fe2+ content to Fe3+. The treated ore may also be subjected to a magnetic separation before leaching. Leaching is preferably performed with HCl at above 100‹ C. in a continuous counter current fluidized bed process. The leachant preferably contains Fe2+ ions initially. The leached solid may be calcined at 600- 700‹ C. for “-2 hours and then chlorinated under fluidized bed conditions to TiCl 4 from which pigment grade TiO 2 may be made ...

Processes for producing titanium dioxide

LEACHING PROCESS

A process of leaching a metal value, such as nickel, from a metal laden solid, such as ore. The process includes the steps of contacting the metal laden solid with a leach solution comprising an organic bio-acid to provide a metal value containing leachate. At least the major proportion of the organic bio-acid in the leach solution is malic acid. The leachate is recovered for further processing to remove the metal value.

LEACHING OF A TITANIFEROUS MATERIAL

An industrially realistic process for upgrading of titaniferous materials is disclosed. The process comprises the following steps: (i) a pretreatment which has the effect of rendering silica amenable to leaching under the particular conditions of a subsequent leach, and (ii) an aqueous leach in the presence of an acid, the conditions of which are chosen such that silica which enters solution is not hydrolysed or precipitated as a silicate. The pretreatment step (i) may comprise alkaline leaching, roasting or smelting. The leaching step (ii) may be conducted at low solids densities.

Method for preparing chlorinated titanium-rich material by utilizing high-silico-calcium-magnesium-titanium concentrate

PROCESS FOR UPGRADING TITANIFEROUS MATERIALS

A process for removing impurities from a titaniferous material that has been subjected to thermal reduction is disclosed. The process comprises the steps of: (i) subjecting the thermally reduced titaniferous material to a secondary heat treatment to convert it to a leachable form in which impurities present therein are more readily leachable; (ii) cooling the product of step (i); (iii) leaching the cooled heat treated titaniferous material in an aqueous acid solution that is capable of dissolving at least a portion of any impurities contained in the titaniferous material to form a leachate; and (iv) separating the leachate from the titaniferous material.

TITANIFEROUS ORE BENEFICIATION

This invention relates to a process for beneficiating a titaniferous ore. The process comprises leaching the titaniferous ore with sulfuric acid to form a leached ore, calcining the leached ore in the presence of oxygen to form a calcined ore, and leaching the calcined ore with sulfuric acid, hydrochloric acid, and/or nitric acid to form a beneficiated ore. The leached ore is not reduced prior to or following calcination.

CONTINUOUS ORE REACTION PROCESS

In a continuous process for reacting particulate ore with a liquid reagent in a counter-current vertical column, wherein liquid reagent is introduced at the bottom of the column, particulate ore is introduced at the top of the column, reacted particulate ore is removed at the bottom of the column, and spent liquid reagent is removed at the top of the column, the improvement comprising: (a) providing an upper and lower chamber for the vertical column, each of said chambers having a bottom outlet with a diameter which is less than that of the diameter of the chamber; (b) maintaining sufficient upward flow of liquid reagent in the upper chamber so that the particulate ore is wetted and deaerated, at least some fine particles thereof are carried overhead for removal, and the remainder thereof settle and enter the lower chamber; (c) maintaining sufficient fluidization and retention time in the lower chamber so that the desired amount of reaction with the ore takes place, at least some of the ...

PROCESSES FOR PRODUCING TITANIUM DIOXIDE

СПОСОБ ПЕРЕРАБОТКИ КВАРЦ-ЛЕЙКОКСЕНОВОГО КОНЦЕНТРАТА

Изобретение относится к переработке кварц-лейкоксенового концентрата и может быть использовано для получения диоксида титана. Способ включает обжиг концентрата с железосодержащей добавкой при температуре 1450-1525°С с последующим охлаждением и выщелачиванием. Железосодержащую добавку берут в массовом соотношении 1: 0,5-1 к массе обрабатываемого кварц-лейкоксенового концентрата. Выщелачивание проводят 60-70% серной кислотой при соотношении Т:Ж 1:2-10 при температуре 160-170°С, в течение 4-6 часов, полученный раствор фильтруют с выделением сульфата железа и маточного раствора, который затем подвергают термогидролизу с осаждением гидроксида титана. Обеспечивается получение концентрата, вскрытие которого проходит в значительно более мягких условиях, по сравнению с обычными технологиями, при этом полученный продукт может быть переработан по стандартной сернокислотной технологии получения диоксида титана из ильменитового концентрата. 6 пр.

Verfahren zur Gewinnung von Niob, Tantal und Titan aus geringwertigen Vorkommen

Deriving high value products from waste red mud

Disclosed herein, is a process for recovering- valuable metals and/or their oxides from red mud bauxite residues or similar. The process comprises: calcining a red mud residue having a pH of less than about 10 to provide a calcinated red mud residue; acid leaching the calcinated red mud residue to provide a silica rich solid component and an acid leachate; separating the silica rich solid component and the acid leachate; precipitating an iron rich solid component from the acid leachate; and separating the precipitated iron rich solid component from the acid leachate to provide an aluminium rich liquor.

TITANIFEROUS ORE BENEFICIATION

This invention relates to a process for beneficiating a titaniferous ore. The process comprises leaching the titaniferous ore with sulfuric acid to form a leached ore, calcining the leached ore in the presence of oxygen to form a calcined ore, and leaching the calcined ore with sulfuric acid, hydrochloric acid, and/or nitric acid to form a beneficiated ore. The leached ore is not reduced prior to or following calcination. © KIPO & WIPO 2008 ...

Schnelles Recyclingverfahren für Ruthenium-, Gold- und Titan-Beschichtungen aus hydrophilen bipolaren Platten aus PEM-Brennstoffzellen

Verfahren zum Recyceln einer bipolaren Platte, welche eine Titan- oder Titanoxidschicht sowie eine auf der Titanoxidschicht abgeschiedene leitfähige Schicht enthält, wobei das Verfahren umfasst: Eintauchen der bipolaren Platte in einen Behälter, der eine Säurelösung enthält, welche die Titan- oder Titanoxidschicht auflöst, Abschöpfen des leitfähigen Materials von der leitfähigen Schicht, welche auf der Säurelösung flotiert, um dieses aus dem Behälter zu entfernen, nachdem sich die Titan- oder Titanoxidschicht aufgelöst hat, Erhitzen der Säurelösung, um die Säurelösung zu verdampfen, und Entfernen des Titans oder Titanoxids aus dem Behälter, nachdem die Säurelösung verdampft worden ist.

Recovery of niobium, tantalum and titanium from low grade sources

In a method for recovering Ta, Nb and Ti values, sources containing less than 10% by weight of Ta and Nb materials and up to 90% of Si, Ca, Fe, Al and Ti compounds are reacted with CaF2 and at least 60% H2SO4, the quantity of fluoride being at least stoichiometrically equivalent to the silicon, and the quantity of H2SO4 being at least sufficient to generate the required amount of HF, so as to remove the Si, and heated at 300-400 DEG C. until the acid content is in the range of 9-15%. The product may be boiled with water and HF to solubilize Nb, Ta and Ti, and the slurry separated into liquid and solids. The residue is boiled with water and reduced, and the oxides of Nb, Ta and Ti precipitated by hydrolysis. The Nb, Ta and Ti are separated by organic extraction. Most of the fluorine, about 80%, used is recovered.

PROCESS

The present invention relates to a process for recovering a primary metal residue from a metal-containing composition.

Preparation of oxide zinc titanium and oxide

PROCESS FOR THE PREPARATION OF TITANIUM DIOXIDE CONCENTRATES

PROCESS FOR THE PREPARATION OF TITANIUM DIOXIDE CONCENTRATES

Method for extraction of iron aluminum and titanium from coal ash

A method is disclosed for the recovery of iron, aluminum and titanium from coal ash. The method comprises magnetically extracting magnetite from the ash, leaching the ash with a solution of a mineral acid, precipitating and removing titanium and iron hydroxides from the leach solution by adding thereto a solution of a strong base, and precipitating and removing aluminum hydroxide by contacting the remaining solution with carbon dioxide or aluminum hydroxide seeding.

Process

Leaching of a titaniferous material

Treatment of a wide range of titanium compounds

METAL OXIDE PARTICLES AND METHOD OF PRODUCING THEREOF

Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well.

PROCESS FOR UPGRADING TITANIFEROUS MATERIALS

A process for removing impurities from a titaniferous material that has been subjected to thermal reduction is disclosed. The process comprises the steps of: (i) subjecting the thermally reduced titaniferous material to a secondary heat treatment to convert it to a leachable form in which impurities present therein are more readily leachable; (ii) cooling the product of step (i); (iii) leaching the cooled heat treated titaniferous material in an aqueous acid solution that is capable of dissolving at least a portion of any impurities contained in the titaniferous material to form a leachate; and (iv) separating the leachate from the titaniferous material.

Process for the use of titaniferous matters containing of iron

METHODS OF EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MATERIALS

METHODS OF EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MATERIALS

The invention relates to processes for the extraction of products from titanium-bearing materials or a composition produced in a process for the production of titanium dioxide, and more particularly, although not exclusively, extracting titanium dioxide and/or one or more other products from iron making slag.

DERIVING HIGH VALUE PRODUCTS FROM WASTE RED MUD

Disclosed herein, is a process for recovering- valuable metals and/or their oxides from red mud bauxite residues or similar. The process comprises: calcining a red mud residue having a pH of less than about 10 to provide a calcinated red mud residue; acid leaching the calcinated red mud residue to provide a silica rich solid component and an acid leachate; separating the silica rich solid component and the acid leachate; precipitating an iron rich solid component from the acid leachate; and separating the precipitated iron rich solid component from the acid leachate to provide an aluminium rich liquor.

CONTINUOUS ORE REACTION PROCESS

... 2136179 9324669 PCTABS00028 In a continuous process for reacting particulate ore with a liquid reagent in a counter-current vertical column, wherein liquid reagent is introduced at the bottom of the column, particulate ore is introduced at the top of the column, reacted particulate ore is removed at the bottom of the column, and spent liquid reagent is removed at the top of the column, the improvement comprising: (a) providing an upper and lower chamber for the vertical column, each of said chambers having a bottom outlet with a diameter which is less than that of the diameter of the chamber; (b) maintaining sufficient upward flow of liquid reagent in the upper chamber so that the particulate ore is wetted and deaerated, at least some fine particles thereof are carried overhead for removal, and the remainder thereof settle and enter the lower chamber; (c) maintaining sufficient fluidization and retention time in the lower chamber so that the desired amount of reaction with the ore takes ...

Manufactoring process of made up and titanium pigments starting from siliceous minerals containing of titanium

Process for the treatment of titaniferous matters

Process for upgrading titaniferous materials

A process for removing impurities from a titaniferous material that has been subjected to thermal reduction and which includes a titaniferous phase of general formula M3 O5. The thermally reduced titaniferous material is subjected to a secondary heat treatment to covert the M3 O5 phase to a more readily leachable M2 O3 phase. This material is then cooled and leached in an aqueous acid solution containing hydrochloric acid or sulfuric acid, and the leachate is separated from the titaniferous material to form a purified titaniferous material.

PROCESS FOR RECOVERING TITANIUM DIOXIDE

An improved process for recovering a titanium dioxide product from a titanium oxide-containing roasted mass of the type derived from roasting an ilmenite, anatase or perovskite ore by exploiting an organic acid, such as mixture of oxalic acid and ascorbic acid.

PROCESS FOR RECOVERING A TITANIUM DIOXIDE PRODUCT

Method for producing titanium oxide and iron oxide

Leaching process

Continuous ore reaction process

Recovery of tantalum, niobium and titanium from low grade sources

Ta, Nb and Ti may be recovered from sources containing less than 10% Ta and Nb materials and up to 90% of Si, Ca, Fe, Al and Ti compounds by reacting with CaF2 in an amount at least stoichiometrically equivalent to the silicon and sufficient H2SO4, of at least 65% concentration, to generate the required amount of HF to remove the silica, heating at between 300 DEG and 500 DEG C. until dryness and continuing the heating until the acid content of the product is less than 9% calculated as H2SO4. Steam may be injected during the heating stage. The product may be leached with water to dissolve Al and Fe salts. During the leaching 10-20% of the liquor may be withdrawn, neutralized to precipitate Ta, Nb and Ti, and returned to the liquor as a seed. The liquor is further boiled to precipitate more Ta, Nb and Ti. The solids recovered may be reacted with HF solution to dissolve Ta, Nb and Ti, the solution filtered, and extracted with an organic solvent. Most of the fluoride used may be recovered.

Process in the treatment of titaniferous materials

... 275,579. Titan Co. Aktieselskabet. Aug. 3, 1926, [Convention date]. Titanium sulphates and salts in general.-In the treatment of titaniferous materials, such as ilmenite, rutile, or titanite, with an acid, such as sulphuric acid, to effect solution, a reducing agent is added to the material to be treated or to the acid before or during the treatment, to expedite the reactions which take place. As reducing agents may be used magnetic or common pyrites, the products obtained by heating pyrites to ignition with ilmenite, iron, or iron oxide, or by heating together two or more of pyrites, magnetic pyrites, sulphur, titanium compounds, iron, or iron compounds such as iron sulphate, at temperatures between 400 and 1000‹ C. and generally at 700-800‹ C., with or without rapid cooling, as 'by immersion in water, of the products. Ilmenite subjected to a reducing process may also be used alone. Iron used may be wholly or partly replaced by zinc, aluminium, antimony, silicon, titanium, magnesium, or ...

PROCESSES FOR PRODUCING TITANIUM DIOXIDE

PROCESS FOR THE PRODUCTION OF TITANIUM AND IRON MATERIAL

Continuous ore reaction process

Digestion of titanium-bearing ores

Titanium compounds are recovered from titanium-bearing materials by a process that comprises digesting said materials in a concentrated mineral acid in the presence of a surfactant, thus obtaining an aqueous solution of a water-soluble titanium compound. The surfactant, which may be present in quantities not more than 10% by weight based on the weight of titanium bearing materials, may be non-ionic, anionic or cationic, and suitable compounds include, a polyoxyethylene alkyl quaternary ammonium salt, a long chain aryl polythylene oxide condensation product, a polyethylene glycol or a dialkyl ester of sulphosuccinic acid. The mineral acid used may be concentrated sulhuric acid of at least 80% by volume, the digestion step may be performed at an elevated temperature, and the titanium bearing materials may be ground to below 325 mesh (U.S. stanard).

PRODUCTION OF TITANIUM DIOXIDE CONCENTRATE

... 1300973 Titanium dioxide concentrates ISHIHARA SANGYO KAISHA Ltd 6 Feb 1970 [8 Feb 1969] 5951/70 Heading C1N A titanium dioxide concentrate is produced by leaching a titaniferous material, i.e. titaniferous iron ores, e.g. ilmenite, leucoxene and arizonite, and ores prepared by subjecting these titaniferous iron ores to a chemical or physical processing, with a mineral acid in the presence of a seed which comprises a finely divided solid material which has been added to or formed in situ in, the leach liquor and which is capable of accelerating the hydrolysis of a titanium salt solution and removing a solution containing Fe values from the product thus obtained. The seed may be a colloidal hydrated metal oxide, e.g. of TiO 2 , Nb 2 O 5 , Ta 2 O 5 , SnO 2 , in which the molar per cent of metal oxide in the seed based on the TiO 2 in the titaniferous material is from 0À1 to 10%. The titaniferous ore used may have a grain size less than 200 mesh or it may have a size between 20 and 200 mesh ...

Method for extraction of valuable components in vanadium-titanium magnetite through oxygen-rich selective leaching

Titaniferous ore beneficiation

This invention relates to a process for beneficiating a titaniferous ore. The process comprises leaching the titaniferous ore with sulfuric acid to form a leached ore, calcining the leached ore in the presence of oxygen to form a calcined ore, and leaching the calcined ore with sulfuric acid, hydrochloric acid, and/or nitric acid to form a beneficiated ore. The leached ore is not reduced prior toor following calcination.

Method of preparing a synthetic rutile from a titaniferous slag containing magnesium values

KONTINUIERLICHES REAKTIONSVERFAHREN FÜR ERZE

Deriving high value products from waste red mud

Disclosed herein, is a process for recovering- valuable metals and/or their oxides from red mud bauxite residues or similar. The process comprises: calcining a red mud residue having a pH of less than about 10 to provide a calcinated red mud residue; acid leaching the calcinated red mud residue to provide a silica rich solid component and an acid leachate; separating the silica rich solid component and the acid leachate; precipitating an iron rich solid component from the acid leachate; and separating the precipitated iron rich solid component from the acid leachate to provide an aluminium rich liquor.

beneficiamento de minério titanìfero

Beneficiamento de minério titanífero

Verfahren zum Aufschliessen von Titanerzen

Process

The present invention relates to a process for recovering a primary metal residue from a metal-containing composition.

TREATMENT OF A WIDE RANGE OF TITANIUM COMPOUNDS

A process of producing 99% plus titanium dioxide product by using conventional and microwave heating and leaching of the titanium compound feedstock using acid and oxidants. The solid residue from the leaching is used to produce the high quality titanium oxide by froth flotation. Hydrochloric acid can be recovered by multi-stage evaporation. The process can be modified to produce nano-size titanium dioxide product.

Process for recovering a titanium dioxide product

Verfahren zum Aufschluss von Titanerzen mit Salzsaeure

Metal oxide particles and method of producing thereof

Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well.

Method for extraction of iron aluminum and titanium from coal ash

A method is disclosed for the recovery of iron, aluminum and titanium from coal ash. The method comprises magnetically extracting magnetite from the ash, leaching the ash with a solution of a mineral acid, precipitating and removing titanium and iron hydroxides from the leach solution by adding thereto a solution of a strong base, and precipitating and removing aluminum hydroxide by contacting the remaining solution with carbon dioxide or aluminum hydroxide seeding.

Method for preparing rutile from acid-soluble titanium slag

Provided is a method for preparing rutile from acid-soluble titanium slag, including: grinding acid-soluble titanium slag; adding a sodium carbonate modifier, and performing microwave irradiation treatment in a microwave device; adding an ammonium bifluoride additive; and performing acid purification and calcination to obtain rutile. By means of a microwave heating mode, the equipment investment needed by the method is low, and the energy consumption is low. The purity of artificial rutile is more than 91%, byproducts are fewer, and the environmental pollution is low.

Verfahren zur Herstellung von synthetischem Rutil aus titanhaltiger Schlacke, die Magnesium enthält

VERFAHREN ZUM RECYCELN EINER BESCHICHTETEN BIPOLAREN PLATTE AUS ROSTFREIEM STAHL

Verfahren zum Recyceln einer bipolaren Platte aus rostfreiem Stahl, welche eine Titan- oder Titanoxidschicht sowie eine auf der Titan- oder Titanoxidschicht abgeschiedene leitfähige Schicht enthält, wobei das leitfähige Material der leitfähigen Schicht Rutheniumoxid, Iridium, Iridiumoxid, Platin, Gold oder ein anderes Edelmetall ist und wobei das Verfahren umfasst:Eintauchen der beschichteten bipolaren Platte aus rostfreiem Stahl in einen Behälter, der eine Säurelösung enthält, welche die Titan- oder Titanoxidschicht auflöst,Abschöpfen des leitfähigen Materials von der leitfähigen Schicht, welche auf der Säurelösung flotiert, um dieses aus dem Behälter zu entfernen, nachdem sich die Titan- oder Titanoxidschicht aufgelöst hat,Erhitzen der Säurelösung, um die Säurelösung zu verdampfen, undEntfernen des Titans oder Titanoxids aus dem Behälter, nachdem die Säurelösung verdampft worden ist,so dass das leitfähige Material der leitfähigen Schicht und das Titan oder Titanoxid aus der Titan- oder ...

PROCESS

Process for upgrading titaniferous materials

PCT No. PCT/AU94/00241 Sec. 371 Date Apr. 1, 1996 Sec. 102(e) Date Apr. 1, 1996 PCT Filed May 9, 1994 PCT Pub. No. WO94/26944 PCT Pub. Date Nov. 24, 1994A process for removing impurities from a titaniferous material that has been subjected to thermal reduction and which includes a titaniferous phase of general formula M3O5. The thermally reduced titaniferous material is subjected to a secondary heat treatment to covert the M3O5 phase to a more readily leachable M2O3 phase. This material is then cooled and leached in an aqueous acid solution containing hydrochloric acid or sulfuric acid, and the leachate is separated from the titaniferous material to form a purified titaniferous material.

KONTINUIERLICHES REAKTIONSVERFAHREN FÜR ERZE

Sputtering target material recovery method

설페이트 티탄 슬래그로 금홍석을 제조하는 방법

... 본 발명은 설페이트 티탄 슬래그로 금홍석을 제조하는 방법에 관한 것으로, 상기 방법은 설페이트 티탄 슬래그 분쇄, 개질 처리, 첨가제 첨가 및 산성 이물질 제거 등 단계를 포함한다. 본 발명에 따른 방법을 사용하여 얻은 인조 금홍석은 염소화 방법으로 티탄백을 생산하는 요구에 완전히 부합되고, 원료는 광범위한 적응성을 가진다. 마이크로 웨이브 가열을 가열 방식으로 선택하므로, 본 발명에 필요한 기기 관련 투자는 기존기술에 비하여 17% 감소되고, 에너지 소모가 25% 감소되며, 인조 금홍석의 순도는 91% 이상에 달하고, 부산물이 비교적 적으며 환경 오염 또한 적어 에너지 절감 및 배출 감량과 청정 야금(clean metallurgy)의 요구에 부합된다.

Deriving high value products from waste red mud

本说明书公开了一种从赤泥铝土残渣或其类似物回收有价值的金属和/或它们的氧化物的方法。所述方法包括：将pH小于约10的赤泥铝土残渣煅烧以提供经煅烧的赤泥铝土残渣；将所述经煅烧的赤泥铝土残渣酸浸出以提供富含二氧化硅的固体组分和酸浸出物；分离所述富含二氧化硅的固体组分和所述酸浸出物；从所述酸浸出物中沉淀出富含铁的固体组分；和从所述酸浸出物分离出所述沉淀的富含铁的固体组分以提供富含铝的液体。

금속 산화물 입자 및 이의 제조 방법

... 금속 산화물의 서브미크론 입자의 고순도 분말의 제조 방법이 제공된다. 방법은 제1 금속과 제2 금속의 합금을 제공하거나 형성하는 단계, 임의로 합금을 가열하는 단계, 합금을 침출제로 처리하여 제2 금속을 합금으로부터 제거하고, 제1 금속을 산화시켜, 제1 금속의 서브미크론 산화물 입자를 형성하는 단계를 포함한다. 고순도, 높은 표면적의 서브미크론 입자의 수집이 또한 제공된다.

ACID WASHING OF LEACHED SOLIDS FROM THE BENEFICIATION OF TITANIFEROUS ORES

The acid washing of leached solids obtained from the beneficiation of titaniferous ores. In particular, the invention forms a part of a process for the beneficiation of titaniferous ores to produce a product high in titanium dioxide, and low in other metal oxides, which is suitable for use as a pigment, or is suitable for the subsequent production by chlorination of titanium dioxide pigments, or for the production of titanium metal.

Metal oxide particles and method of producing thereof

Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well.

PROCESS FOR THE RECOVERY OF TITANIUM DIOXIDE AND VALUE METALS AND SYSTEM FOR SAME

A process and system for recovering titanium dioxide and other value metals from a titanium bearing solid is disclosed. The process includes leaching the solid in hydrochloric acid to produce a leachate comprising undissolved solids and a leach solution comprising the titanium dioxide and the value metals, wherein the hydrochloric acid concentration is maintained above a value required to maintain the titanium dioxide and the value metals dissolved in the leach solution at atmospheric pressure. The leachate is separated into the leach solution and the undissolved solids. The concentration of hydrochloric acid concentration in the leach solution is reduced to recover titanium dioxide by hydrolysis and precipitation to produce a titanium dioxide rich slurry. In a preferred embodiment, HCl is recovered with a matrix solution. 1. A process for recovery of titanium dioxide and value metals from a titanium bearing solid , the process comprising the steps of:(a) leaching the solid in hydrochloric acid to produce a leachate comprising undissolved solids and a leach solution comprising the titanium dioxide and the value metals, wherein the hydrochloric acid concentration is maintained above a value required to maintain the titanium dioxide and the value metals dissolved in the leach solution at atmospheric pressure;(b) separating the leachate into the leach solution and the undissolved solids; and(c) reducing the concentration of hydrochloric acid concentration in the leach solution to recover titanium dioxide by hydrolysis and precipitation to produce a titanium dioxide rich slurry.2. The process of claim 1 , wherein reducing the hydrochloric acid concentration is by heating the leach solution and removing free HCl by HCl distillation of the leach solution.3. The process of claim 1 , wherein reducing the hydrochloric acid concentration is by adding water to the leach solution.4. The process of wherein pigment grade TiOis recovered directly from solutions containing ferric ...

Upgrading of titaniferous material

A method of upgrading a titaniferous material includes nitriding and reducing a titaniferous material which includes TiO 2 and Fe oxides in the presence of nitrogen and carbon to convert the TiO 2 to TiN and to reduce most of the Fe oxides to Fe. The Fe is oxidised in preference to the TiN to form Fe 2+ ions, whereafter the Fe 2+ ions are removed to produce an upgraded low-Fe TiN bearing material.

RECOVERING METAL OXIDES FORM A PAINT SLUDGE

A method for recovering metal oxides from a paint sludge. The method may include obtaining a first mixture by evaporating an organic part of the paint sludge. Evaporating the organic part of the paint sludge may include heating the paint sludge in a furnace. The method may further include precipitating a second mixture from the first mixture by mixing the first mixture and a sodium hydroxide solution. The method may further include recovering titanium dioxide from the second mixture by mixing the second mixture with a hydrochloric acid solution. 1. A method for recovering metal oxides from a paint sludge , the method comprising:obtaining a first mixture by evaporating an organic part of the paint sludge by heating the paint sludge in a furnace at a temperature in a range from 350° C. to 600° C.;precipitating a second mixture in the first mixture by mixing the first mixture and a sodium hydroxide solution with a weight ratio in a range from 1:5 to 1:15 (the first mixture:the sodium hydroxide solution);obtaining a supernatant solution by separating the precipitated second mixture from the first mixture;recovering titanium dioxide from the separated precipitated second mixture by mixing the separated precipitated second mixture with a hydrochloric acid solution with a weight ratio in a range from 1:5 to 1:15 (separated precipitated second mixture:hydrochloric acid solution);{'sub': '2', 'precipitating aluminum hydroxide from the supernatant solution by injecting COinto the supernatant solution; and'}forming aluminum oxide by heating the precipitated aluminum hydroxide at a temperature in a range from 1000° C. to 1200° C.2. A method for recovering metal oxides from a paint sludge , the method comprising:obtaining a first mixture by evaporating an organic part of the paint sludge by heating the paint sludge in a furnace;precipitating a second mixture from the first mixture by mixing the first mixture and a sodium hydroxide solution; andrecovering titanium dioxide from ...

PROCESS FOR PREFERENTIAL DISSOLUTION OF IRON IN THE PRESENCE OF TITANIUM

Disclosed herein are processes for selectively solubilizing iron from a substrate material containing both titanium and iron, such as ilmenite ore. In one embodiment, the process comprises contacting a substrate material comprising iron and titanium with an aqueous solution of an extractant selected from the group consisting of malonic acid, a malonic acid salt, citric acid, a citric acid salt, and mixtures thereof, at a temperature between about 25° C. and about 160° C. for a time sufficient to form an aqueous leachate comprising iron and titanium, and solids comprising titanium; wherein the leachate has a titanium content of 25 weight percent or less, based on the sum of the iron and the titanium contents of the leachate on a weight basis. 1. A process comprising the step:a) contacting a substrate material comprising iron and titanium with an aqueous solution of an extractant selected from the group consisting of malonic acid, a malonic acid salt, citric acid, a citric acid salt, and mixtures thereof, at a temperature between about 25° C. and about 160° C. for a time sufficient to form an aqueous leachate comprising iron and titanium, and solids comprising titanium;wherein the leachate has a titanium content of 25 weight percent or less, based on the sum of the iron and the titanium contents of the leachate on a weight basis.2. The process of claim 1 , further comprising the steps:b) separating the solids from the leachate to obtain separated solids; andc) optionally, washing the separated solids with water.3. The process of claim 1 , wherein the substrate material comprises ilmenite ore.4. The process of claim 1 , wherein the substrate material comprises titanyl hydroxide cake.5. The process of claim 1 , wherein the substrate material comprises titanium dioxide pigment.6. The process of claim 5 , wherein the titanium dioxide pigment comprises rutile titanium dioxide claim 5 , anatase titanium dioxide claim 5 , or a mixture thereof.7. The process of claim 1 , ...

METHOD FOR PREPARING RUTILE FROM ACID-SOLUBLE TITANIUM SLAG

Provided is a method for preparing rutile from acid-soluble titanium slag, including: grinding acid-soluble titanium slag; adding a sodium carbonate modifier, and performing microwave irradiation treatment in a microwave device; adding an ammonium bifluoride additive; and performing acid purification and calcination to obtain rutile. By means of a microwave heating mode, the equipment investment needed by the method is low, and the energy consumption is low. The purity of artificial rutile is more than 91%, byproducts are fewer, and the environmental pollution is low. 1. A method for preparing rutile from an acid-soluble titanium slag , '(i) grinding including:', 'comprising steps ofgrinding the acid-soluble titanium slag using a grinding device so that 80 wt % or more of the slag has a particle size of −100 mesh, thereby obtaining an acid-soluble titanium slag powder; then(ii) modifying including:adding sodium carbonate as a modifier to the acid-soluble titanium slag powder obtained in step (i) in an amount of 20-40 wt % based on a weight of the acid-soluble titanium slag powder, mixing uniformly, and then radiating the mixture using microwave at a temperature of 750-850° C. in a microwave device, thereby obtaining a modified acid-soluble titanium slag,wherein the microwave device has a frequency of 912-918 MHz, and the radiating is performed for 1.5-2.5 hours min; then(iii) adding an additive including:grinding the modified acid-soluble titanium slag obtained in step (ii) so that 80 wt % or more of the slag has a particle size of −160 mesh, and adding ammonium bifluoride as an additive thereto, thereby obtaining an additive-containing acid-soluble titanium slag; and(iv) removing impurities in an acid environment and calcining including:uniformly mixing the additive-containing titanium slag obtained in step (iii) with a sulfuric acid or hydrochloric acid aqueous solution having a concentration of 15-30 wt % at a solid-liquid ratio of 1:4-6, removing impurities from ...

PROCESS

The present invention relates to a process for recovering a primary metal residue from a metal-containing composition. 1. A process for recovering a primary metal residue from a metal-containing composition comprising:(a) preparing a feedstock of the metal-containing composition and an alkali salt;(b) reductively or oxidatively roasting the feedstock at a roasting temperature for a roasting period to produce a roast;(c) cooling the roast to produce a roasted mass containing metallic iron or an alloy or compound thereof and soluble metal oxides;(d) adding an aqueous medium to the roasted mass to form a substantially insoluble product and a first solution of soluble metal oxides;(e) acid leaching the substantially insoluble product or a fraction thereof to produce a leach residue and a second solution of soluble metal oxides;(f) roasting the leach residue in the presence of a bisulphate or bicarbonate of an alkali metal or alkaline earth metal to produce a roasted residue; and(g) hydrometallurgically extracting from the roasted residue the primary metal residue and a third solution of soluble metal oxides.2. The process as claimed in claim 1 , wherein the bisulphate or bicarbonate of an alkali metal or alkaline earth metal is a bisulphate or bicarbonate of an alkali metal.3. The process as claimed in claim 1 , wherein the bisulphate or bicarbonate of an alkali metal or alkaline earth metal is NaHSO.4. The process as claimed in claim 1 , further comprising: recovering one or more metal value-containing precipitates from the first solution of soluble metal oxides.5. The process as claimed in claim 1 , further comprising: recovering one or more metal value-containing precipitates from the third solution of soluble metal oxides.6. The process as claimed in claim 1 , further comprising:(d1) separating a rare earth oxides-containing colloidal solution from the surface of the first solution of soluble metal oxides.7. The process as claimed in claim 1 , wherein the metal- ...

Method for processing vanadium-titanium magnetite finished ores by using wet process

A method for processing vanadium-titanium magnetite finished ores by using a wet process. The method comprises the steps: extracting vanadium from vanadium-titanium magnetite finished ores and processing, by using the vanadium extraction method, obtained leaching residue by using a wet process, so as to obtain titanium; and calcining the remaining liquid extracted during the vanadium extraction, so as to prepare ferric oxide. The flow of the method is short, and the energy consumption is low, thereby avoiding waste of a titanium resource.

METAL OXIDE PARTICLES AND METHOD OF PRODUCING THEREOF

Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well. 1. Metal oxide clusters which comprise metal oxide particles at a size range between 3 nm and 200 nm , wherein the metal-oxide particles form a nano-porous structure and have a specific surface area that is larger than 70 m/g.2. The metal oxide clusters of claim 1 , wherein a metal-base purity of said metal oxide particles is larger than 99%.3. The metal oxide clusters of claim 1 , wherein the nano-porous structure has an average pore size of between 5-100 nm.4. The metal oxide clusters of claim 1 , wherein the metal(s) in said metal oxide particles is selected from the group consisting of Ti claim 1 , Fe claim 1 , Zr claim 1 , Hf claim 1 , Cu claim 1 , Co claim 1 , Cr claim 1 , Ni claim 1 , Mo claim 1 , La claim 1 , Nb claim 1 , Ta claim 1 , W claim 1 , V and combinations thereof.5. The metal oxide clusters of claim 4 , wherein the metal in said metal oxide particles includes Cu and Co.6. The metal oxide clusters of claim 5 , wherein the crystalline structure of said metal oxide particles is perovskite claim 5 , spinel or spinel-like.7. The metal oxide clusters of claim 5 , wherein the specific surface area of said copper cobalt spinel particles is larger than 100 m/g.8. The metal oxide clusters of claim 4 , wherein the metal oxide particles are titanium oxide particles.9. The metal oxide clusters of claim 8 , wherein a crystalline structure of said titanium oxide is TiOor a mix of TiOwith crystalline TiO.10. The metal oxide clusters of claim 8 , wherein a specific surface area of said titanium ...

PRODUCTION OF TITANIUM DIOXIDE PIGMENTS

A process includes roasting a TiO-containing material in the presence of an alkaline material to form a roasted product; leaching the roasted product with an acidic solution to form a leach liquor; extracting the leach liquor with an extractant to form a raffinate including a Ti species; hydrolyzing the Ti species to form a hydrolyzed material that includes HTiO; calcining the hydrolyzed material; and recovering a TiOproduct. 1. A process comprising:{'sub': '2', 'roasting a TiO-containing material in the presence of an alkaline material to form a roasted product;'}leaching the roasted product with an acidic solution to form a leach liquor;{'sup': '4+', 'extracting the leach liquor with an extractant to form a raffinate comprising Ti,'}{'sup': '4+', 'sub': 2', '3, 'hydrolyzing the Ti to form a hydrolyzed material comprising HTiO;'}calcining the hydrolyzed material; and{'sub': '2', 'recovering a TiOproduct.'}2. The process of claim 1 , wherein the extractant comprises an alkyl phosphoric acid claim 1 , an alkyl phosphonic acid claim 1 , an alkyl phosphinic acid claim 1 , a thioalkyl phosphinic acid claim 1 , a phosphate claim 1 , a phosphine oxide claim 1 , a primary amine claim 1 , a second amine claim 1 , a tertiary amine claim 1 , a quaternary ammonium salt claim 1 , or an ion exchange resin.3. The process of claim 1 , wherein the extractant comprises di(2-ethylhexyl)phosphoric acid; 2-ethylhexyl phosphonic acid mono-2-ethylhexyl phosphoric ester; di-2 claim 1 ,4 claim 1 ,4-trimethylpentyl phosphinic acid; di-2 claim 1 ,4 claim 1 ,4-trimethylpentyl monothiophosphinic acid; di-2 claim 1 ,4 claim 1 ,4-trimethylpentyl dithiophosphinic acid; a phosphate of formula (O)P(OR); a phosphine oxide of formula (O)PRor (O)PRR; trioctyl amine; or trioctyl methyl ammonium chloride; quarternary amine; wherein R claim 1 , R claim 1 , R claim 1 , and Rare individually C4-C10 alkyl.4. The process of claim 1 , wherein the extractant comprises a tertiary amine which is a trialkylamine ...

RECOVERY OF RARE EARTHS FROM CONCENTRATES CONTAINING FLUORINE

The present invention relates to the recovery of rare earths, scandium, niobium, tantalum, zirconium, hafnium, titanium, and the like from ores or concentrates containing fluorine. More specifically, the ores or concentrates are pretreated by carbochlorination to convert the rare earths and other metals into their chlorides and then subjected to dilute hydrochloric acid leaching to recover the valuable rare earths and other metals from the leachate. Niobium, tantalum, zirconium, hafnium, and titanium can be recovered as their chlorides or oxychlorides from the gaseous products of carbochlorination, or converted into their oxides while simultaneously regenerating chlorine. 1. A method of recovering a mineral from a fluorine-containing ore or concentrate , the method comprising:treating the fluorine-containing ore or concentrate by carbochlorination in the presence of a carbon-containing material and a fluorine capturing agent to form a mineral chloride and a treated ore or concentrate, wherein a partial pressure or activity of the fluorine capturing agent substantially prevents formation of rare earth fluorides throughout the treating step;contacting the treated ore or concentrate with a dilute HCl leach solution to solubilize the mineral chloride in the leach solution; andrecovering the mineral,wherein the mineral is selected from the group consisting of a rare earth mineral, a scandium mineral, a niobium mineral, a tantalum mineral, a zirconium mineral, a hafnium mineral, a titanium mineral, and combinations thereof.2. The method of claim 1 , wherein the fluorine capturing agent comprises at least one of magnesium chloride claim 1 , silicon tetrachloride claim 1 , and mixtures thereof.3. The method of claim 2 , wherein the fluorine capturing agent comprises at leason one of (i) silicon tetrachloride formed in situ during the treating step by carbochlorination of silicon dioxide or silicates claim 2 , and (ii) magnesium chloride formed in situ during the treatin ...

Production of high-grade synthetic rutile from low-grade titanium-bearing ores

The present invention relates to a two-stage leaching process using concentrated hydrochloric acid that upgrades a variety of inferior quality titanium-iron ores into premium titanium concentrate and iron oxide products. The ground ore is leached with two separate quantities of hydrochloric acid after which the dissolved titanium is precipitated from the filtered liquor by hydrolysis. The still soluble iron chlorides are then optionally subjected to oxyhydrolysis to recover iron oxide and HCl. The process was developed for low-grade ores (under 12% TiO 2 ), and can be naturally applied advantageously to higher grade titanium-bearing ores.

Processes for treating red mud

There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said solid from said leachate. Several other metals can be extracted from the leachate (Fe, Ni, Co, Mg, rare earth elements, rare metals, etc.). Various other components can be extracted from solid such as TiO 2 , SiO 2 etc.

METAL OXIDE PARTICLES AND METHOD OF PRODUCING THEREOF

Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well. 1. A method of producing submicron metal oxide particles of one or more first metal(s) , said method comprising:providing or forming an alloy of said first metal(s) with a second metal;subjecting said alloy to a leaching agent effective to leach out said second metal and to oxidize said first metal(s), thus forming metal oxide submicron particles of said first metal(s);removing said leaching agent, leaving said metal oxide submicron particles of said first metal(s).2. The method of claim 1 , further comprising a step of subjecting said alloy to a heat treatment operation.3. The method of claim 2 , wherein said heat treatment step is conducted following said step of said providing or forming an alloy and prior to said step of subjecting said alloy to a leaching agent.4. The method of claim 1 , further comprising rinsing and drying said first metal(s) oxide particles following removal of said leaching agent.5. The method of claim 4 , wherein said rinsing is conducted in water and is stopped when said water following rinsing is neutral in terms of pH.6. The method of claim 1 , wherein said heat treatment forms a homogeneous phase or phases of said alloy claim 1 , from which said second metal is removed and said first metal(s) is oxidized by said leaching agent.7. The method of claim 1 , wherein said alloy comprises 1-50 wt % of said first metal(s) and 50-99 wt % of said second metal.8. The method of claim 2 , wherein following said heat treatment claim 2 , said alloy undergoes surface cleaning ...

PROCESSES FOR TREATING RED MUD

There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said solid from said leachate. Several other metals can be extracted from the leachate (Fe, Ni, Co, Mg, rare earth elements, rare metals, etc.). Various other components can be extracted from solid such as TiO, SiOetc. 1357-. (canceled)358. A process for treating red mud , said process comprising:leaching red mud with HCl at a temperature of about 125 to about 225° C.: so as to obtain a leachate comprising aluminum ions and iron ions and a solid, and separating said solid from said leachate;{'sub': '3', 'reacting said leachate with HCl so as to obtain a liquid comprising said iron ions and a precipitate comprising said aluminum ions in the form of AlCl, and separating said precipitate from said liquid; and'}{'sub': 3', '2', '3, 'heating said precipitate under conditions effective for converting AlClinto AlOand optionally recovering gaseous HCl so-produced.'}359. The process of claim 358 , wherein said red mud is leached with HCl having a concentration of about 25 to about 45 weight %.360. The process of claim 358 , wherein said red mud is leached with HCl having a concentration of about 25 to about 45 weight % at pressure of about 50 to about 150 psig.361. The process of claim 358 , wherein said red mud is leached with HCl having a concentration of about 25 to about 45 weight % at a temperature of about 160 to about 190° C.362. The process of claim 358 , wherein said red mud is leached with HCl having a concentration of about 18 to about 45 weight % at a temperature of about 125 to about 225° C.363. The process of claim 358 , wherein said process further comprises recycling gaseous HCl so-produced by contacting it with water so as to obtain a composition having a concentration of about 25 to about 45 weight and using said composition for ...

DERIVING HIGH VALUE PRODUCTS FROM WASTE RED MUD

Disclosed herein, is a process for recovering- valuable metals and/or their oxides from red mud bauxite residues or similar. The process comprises: calcining a red mud residue having a pH of less than about 10 to provide a calcinated red mud residue; acid leaching the calcinated red mud residue to provide a silica rich solid component and an acid leachate; separating the silica rich solid component and the acid leachate; precipitating an iron rich solid component from the acid leachate; and separating the precipitated iron rich solid component from the acid leachate to provide an aluminium rich liquor. 1. A process for recovering valuable metals and/or their oxides from red mud bauxite residues or similar , the process comprising:a) calcining a red mud residue having a pH of less than about 10 to provide a calcinated red mud residue;b) acid leaching the calcinated red mud residue to provide a silica rich solid component and an acid leachate;c) separating the silica rich solid component and the acid leachate;d) precipitating an iron rich solid component from the acid leachate; ande) separating the precipitated iron rich solid component from the acid leachate to provide an aluminium rich liquor.2. The process of claim 1 , wherein the process further comprises recovering silica from the silica rich solid component.3. The process of claim 1 , wherein the process further comprises recovering iron oxides from the iron rich solid component.4. The process of claim 1 , wherein the process further comprises recovering alumina from the aluminium rich liquor.5. The process of claim 1 , further comprising a step of adjusting the pH of a red mud bauxite residue to pH 9 to 10 to provide a partially neutralised red mud residue.6. The process of claim 5 , wherein the red mud bauxite residue is washed with sea water.712-. (canceled)13. The process of claim 5 , wherein the partially neutralised red mud reside is calcinated at a temperature of 500° C.14. The process of claim 13 , ...

Method for preparing reduced titanuim powder by multistage deep reduction

Provided is a method for preparing a reduced titanium powder by a multistage deep reduction, including the following steps of: uniformly mixing a dried titanium dioxide powder with a magnesium powder to obtain a mixture, adding the mixture in a self-propagating reaction furnace, triggering a self-propagating reaction, obtaining an intermediate product of which low-valence titanium oxides Ti x O are dispersed in an MgO matrix, leaching the intermediate product with a hydrochloric acid as a leaching solution, performing filtering, washing and vacuum drying to obtain a low-valence titanium oxide Ti x O precursor, uniformly mixing the low-valence titanium oxide Ti x O precursor with a calcium powder, performing a pressing to obtain semi-finished products, placing the semi-finished products in a vacuum reduction furnace for a second-time deep reduction, and leaching a deep reduction product with a hydrochloric acid as a leaching solution so as to obtain the reduced titanium powder.

PROCESSES FOR PREPARING ALUMINA AND VARIOUS OTHER PRODUCTS

There are provided processes for preparing alumina. These processes can comprise leaching an aluminum-containing material with HCl so as to obtain a leachate comprising aluminum ions and a solid, and separating said solid from said leachate; reacting said leachate with HCl so as to obtain a liquid and a precipitate comprising said aluminum ions in the form of AlCl, and separating said precipitate from said liquid; and heating said precipitate under conditions effective for converting AlClinto AlOand optionally recovering gaseous HCl so-produced. These processes can also be used for preparing various other products such as hematite, MgO, silica and oxides of various metals, sulphates and chlorides of various metals, as well as rare earth elements, rare metals and aluminum. 1. A process for preparing alumina , said process comprising:leaching an aluminum-containing material with HCl so as to obtain a leachate comprising aluminum ions and a solid, and separating said solid from said leachate;{'sub': '3', 'reacting said leachate with HCl so as to obtain a liquid and a precipitate comprising said aluminum ions in the form of AlCl, and separating said precipitate from said liquid; and'}{'sub': 3', '2', '3, 'heating said precipitate under conditions effective for converting AlClinto AlOand optionally recovering gaseous HCl so-produced.'}2. The process of claim 1 , wherein said liquid comprises at least one iron chloride.3. The process of claim 2 , wherein said at least one iron chloride is FeCl claim 2 , FeClor a mixture thereof.4. The process of claim 3 , wherein said liquid is concentrated to a concentrated liquid having a concentration of said at least one iron chloride of at least 30% by weight; and then hydrolyzed at a temperature of about 155 to about 350° C.5. The process of claim 3 , wherein said liquid is concentrated to a concentrated liquid having a concentration of said at least one iron iron chloride of at least 30% by weight; and then said at least one iron ...

Method of extracting metal ions from red mud by sonication

A method of effectively extracting metal ions by sonication from red med that is waste remaining after extracting aluminum from bauxite. The method includes: (a) introducing, into a reactor placed in a constant-temperature tank, (1) a neutralized red mud slurry and an acidic solution or (2) red mud slurry, distilled water and an acidic solution, to form a red mud slurry, and heating the constant-temperature tank to allow the red mud slurry to react while sonicating the red mud slurry, thereby extracting metal ions from the red mud; and (b) filtering a product resulting from step (a) to provide a filtrate and a red mud residue, and separating and recovering the filtrate and the red mud residue, wherein the sonication in step (a) is performed using an ultrasonic generator by applying ultrasonic waves to an ultrasonic tip placed in the constant-temperature tank.

Process for the separation of iron in extraction of titanium in mixed chloride media

A process for leaching a value metal from a titaniferous ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising magnesium chloride and hydrochloric acid is disclosed. Iron and titanium are leached into solution. Iron in the ferric state may be separated from titanium in solution using extraction with alkyl ketone. More effective separation of titanium with lower contamination with iron is obtained. 1. A process for leaching of titanium from a titaniferous ore material selected from the group consisting of a titanium-bearing ore , concentrate thereof , modified ore thereof and tailings thereof , and mixtures thereof , said process comprising the steps of:(a) leaching the titanium-bearing ore material at atmospheric pressure with a lixiviant comprising hydrochloric acid and magnesium chloride, said leach being carried out under conditions such that titanium and iron values leached from the titaniferous ore material remain in solution and iron values are converted to ferric iron;(b) subjecting the leach solution so obtained to liquid/solids separation to obtain a leachate and solids; and(c) subjecting the leachate to solvent extraction with a dialkyl ketone, to obtain a solution rich in iron and a raffinate, said raffinate containing titanium values.2. The process of in which the temperature is less than 85° C.3. The process of in which the temperature is less than 80° C.4. The process of in which the temperature is in the range of 65-80° C.5. The process of in which the hydrochloric acid is at a concentration of less than 20% (mass ratio).6. The process of in which the titanium-bearing ore material is ilmenite.7. The process of in which the redox potential (Eh) of the leach solution is at least 350 mV.8. The process of in which the concentration of magnesium chloride is at least 100 g/L.9. The process of in which the total concentration of chloride ions is in the range of 100-400 g/L claim 8 , said total ...

Process for the separation of iron in extraction of titanium in mixed chloride media

A process for leaching a value metal from a titaniferous ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising magnesium chloride and hydrochloric acid is disclosed. Iron and titanium are leached into solution. Iron in the ferric state may be separated from titanium in solution using extraction with alkyl ketone. More effective separation of titanium with lower contamination with iron is obtained. 1. A process for leaching of titanium from a titaniferous ore material selected from the group consisting of a titanium-bearing ore , titanium-bearing ore concentrate , modified ore tailings of titanium-bearing ore and mixtures thereof , said process comprising the steps of:(a) leaching the titanium-bearing ore material at atmospheric pressure with a lixiviant comprising hydrochloric acid and magnesium chloride to obtain a leach solution, in which the hydrochloric acid is at a concentration of less than 20% (mass ratio), the hydrochloric acid is in the range of 30-200 g/L, the concentration of magnesium chloride is at least 100 g/L, said leaching being carried out under conditions such that titanium and iron values leached from the titaniferous ore material remain in solution and iron values are converted to ferric iron;(b) subjecting the leach solution so obtained to liquid/solids separation to obtain a leachate and solids; and(c) subjecting the leachate to solvent extraction with a dialkyl ketone, to obtain a solution rich in iron and a raffinate, said raffinate containing titanium values.2. The process of which is effected at a temperature less than 85° C.3. The process of in which the temperature is less than 80° C.4. The process of in which the temperature is in the range of 65-80° C.5. The process of in which the titanium-bearing ore material is ilmenite.6. The process of in which the redox potential (Eh) of the leach solution is at least 350 mV.7. The process of in which the total concentration of chloride ...

METHODS FOR RECOVERING A TARGET METAL FROM IRON OR STEEL SLAG USING AT LEAST ONE OF A CARBOTHERMIC REDUCTION PROCESS AND A PYRO-HYDROMETALLURGICAL PROCESS

Pyro-hydrometallurgical methods are described to economically and environmentally recover a target metal from iron slag or steel slag. For instance, the method can enable subjecting an iron or steel slag feed to acid-baking with an acid to produce a dried mixture comprising at least one soluble metal salts, then subjecting the dried mixture to water leaching to an aqueous solution comprising an aqueous leachate rich in said target metal and solid residues and subsequently separating the aqueous leachate rich in said target metal from the solid residues. This acid-baking water-leaching method facilitates efficient recovery of target metal compared to conventional methods.

一种由酸溶性钛渣制备金红石的方法

本发明涉及一种人造金红石的制备方法，该方法包括酸溶性钛渣粉碎、改性处理、添加添加剂与酸性除杂等步骤。采用本发明方法所得到人造金红石完全符合氯化法生产钛白的要求，原料具有广泛的适应性。由于选用微波加热作为加热方式，本发明所需要的设备投资比现有技术少17％、能耗低25％、人造金红石纯度在91％以上，副产物较少，环境污染小，符合节能减排与清洁冶金的要求。

Methods of producing titanium oxide and other products

FIELD: chemistry. SUBSTANCE: present invention relates to improvements in chemistry, related to production of aluminium oxide by extraction of aluminium form materials and/or titanium oxide by extraction of titanium from materials containing titanium. Said methods can also be effective in production of other products, such as hematite, MgO, silicon oxide and oxides of different metals, titanium chloride, as well as rare-earth elements and aluminium. Said methods can include leaching of initial material using HCl to obtain product of leaching and solid substance. Solid substance may be processed to provide thereby essentially selective extraction of titanium from said solid substance, while the leaching product may be processed to ensure essentially selective extraction of the first metal chloride from said leaching product. EFFECT: concentration of rare-earth elements to very high purity using combined steps of method, as well as for selective removal of components, which provides concentration of rare-earth elements till very high concentrations. 159 cl, 10 dwg, 28 tbl, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 597 096 C2 (51) МПК C01F 7/02 (2006.01) C22B 21/00 (2006.01) C22B 3/10 (2006.01) C01G 23/047 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015103833/05, 12.07.2013 (21)(22) Заявка: (24) Дата начала отсчета срока действия патента: 12.07.2013 Приоритет(ы): (30) Конвенционный приоритет: US CA US CA (73) Патентообладатель(и): ОРБИТ АЛЮМИНЭ ИНК. (CA) 61/670,645; PCT/CA2012/000871; 61/726,971; PCT/CA2013/000021 (45) Опубликовано: 10.09.2016 Бюл. № 25 (56) Список документов, цитированных в отчете о поиске: WO 9624555 A1, 15.08.1996. US 4222989 A1, 16.09.1980. RU 2375306 C1, 10.12.2009. KZ 19812 B, 15.12.2010. (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.02.2015 CA 2013/000638 (12.07.2013) (87) Публикация заявки PCT: 2 5 9 7 0 9 6 WO 2014/008586 (16.01.2014) R U 2 ...

酸溶性富钛料及其制备方法、应用

本发明公开了酸溶性富钛料及其制备方法、应用，制备方法包括以下步骤：S1、将矿热电炉熔炼完成产生的钛渣自然降温至1100‑800℃；S2、将温度为1100‑800℃的钛渣与固体烧碱按一定比例混合于铁罐内进行钠化反应，反应时间为20～60min，在反应后期，向铁罐内加入NaCl溶液，并向铁罐内的物料内鼓入空气；S3、钠化反应终止后，对铁罐内的物料依次进行水洗、磁选和重选获得含钛物料，其中，磁选分离为两段磁选，一段磁场强度为0.4T‑0.8T，二段磁场强度为1.3T‑1.9T；S4、将步骤S3获得的含钛物料与稀盐酸混合进行酸化反应获得TiO 2 沉淀，酸化反应过程中加入一定量萤石，在酸化反应后期加入氯化铵晶体。本发明解决了现有富钛料TiO 2 品位较低、酸解率较低的问题。

Method of raising titanium dioxide content in titanium-containing ore or concentrate

FIELD: mineral dressing. SUBSTANCE: invention relates to preparing synthetic rutile from titanium-containing ores or concentrates, the process including three principal steps: reduction, removal of iron by leaching or aeration, and removal of other impurities by leaching with strong inorganic acid solution, e. g. hydrochloric or sulfuric acid, on heating. Reduction conditions are controlled to form metal iron, bulk of rutile-containing phase, and small titanium-containing phase with impurities. The latter phase may be metathionate (preferred), anasovite, or pseudo brookite. Reducing agents used are carbon-containing materials or hydrogen-containing gases, e. g. natural or synthesis gas. EFFECT: increased removal (above 80%) of non-reduced iron, magnesium, and manganese oxides, and provided removal of aluminum bulk. 12 cl, 9 tbl Оог9СсоОгс ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ЗВО“” 2102 510 ' (51) МПК 13) Сл С 22 В 34/12 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5053146/02, 01.03.1991 (30) Приоритет: 02.03.1990 АЦ Р. 8919 (46) Дата публикации: 20.01.1998 (56) Ссылки: Ц, патент 3457037, кл. С 22 В 34/12, 1969. (86) Заявка РСТ: АЦ 91100069 (01.03.91) (71) Заявитель: Виммера Индастриал Минералз ПТИ. Лтд. (АЦ) (72) Изобретатель: Майкл Джон Холлит [АЦ], Ян Эдвард Грей[АЧ], Брайан Энтони О'Бриен[АЦ] (73) Патентообладатель: Виммера Индастриал Минералз ПТИ. Лтд. (АЦ) (54) СПОСОБ ПОВЫШЕНИЯ СОДЕРЖАНИЯ ДВУОКИСИ ТИТАНА В ТИТАНСОДЕРЖАЩЕЙ РУДЕ ИЛИ КОНЦЕНТРАТЕ (57) Реферат: Изобретение относится к получению синтетического рутила из титансодержащих руд или концентратов. Сущность: технологический процесс включает три основных этапа: восстановление, удаление железа путем выщелачивания или аэрации, удаление других загрязняющих включений путем выщелачивания раствором сильной неорганической кислоты, например, соляной или серной при нагревании. Условия восстановления контролируются для образования металлического — железа, основной ...

一种处理含钛赤泥的方法

本发明涉及一种处理含钛赤泥的方法。所述方法包括：含钛赤泥经盐酸溶液浸出后，得到浸出渣和浸出液；其中，浸出渣的处理过程为：利用硫酸溶液对浸出渣进行进一步的浸出处理，并经水解、焙烧处理得到二氧化钛；浸出液的处理过程为：对浸出液进行蒸发焙烧处理，得到混合物，向混合物中加入还原剂和添加剂，并压块成型，得到生球，生球经还原、熔分处理，得到熔分铁和富铝渣。本发明能够实现钛、铁、铝的有效分离提取，并且提高了富铝渣提铝的经济价值，能耗较低，节约生产成本。

Method of red mud processing

FIELD: metallurgy. SUBSTANCE: methods include leaching of red mud using HCl with producing the leaching product containing the first metal ions, for example aluminium, and solid substance. Then the said solid substance is separated from the said leaching product. Wherein from the leaching product other metals are extracted, for example, Fe, Ni, Co, Mg, rare-earth elements, rare metals. From the solid substance other components are extracted, for example, TiO 2 , SiO 2. EFFECT: possibility of processing of the red mud being waste of aluminium industry with production of clean products and metals. 390 cl, 13 dwg, 37 tbl, 9 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C22B 3/10 C01B 13/18 C01F 7/02 C22B 34/12 C22B 7/00 (13) 2 579 843 C2 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014131946/02, 10.01.2013 (24) Дата начала отсчета срока действия патента: 10.01.2013 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): БОДРО Ришар (CA), ФУРНЬЕР Жоэль (CA), ПРИМО Дэнис (CA), ЛАБРЕК-ГИЛБЕРТ Мари-Максим (CA) R U (73) Патентообладатель(и): ОРБИТ ТЕКНОЛОДЖИС ИНК. (CA) 10.01.2012 US 61/584,993; 26.09.2012 US 61/706,074; 15.10.2012 US 61/713,719 (43) Дата публикации заявки: 27.02.2016 Бюл. № 6 (56) Список документов, цитированных в отчете о поиске: US 6248302 B1, 19.06.2001. US 4560541 A, 24.12.1985. SU 1426449 А3.09.1988. WO 2010079369 A1, 15.07.2010. US 4222989 A, 16.09.1980. WO 2009153321 A1, 23.12.2009. (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.08.2014 CA 2013/000021 (10.01.2013) (87) Публикация заявки PCT: 2 5 7 9 8 4 3 WO 2013/104059 (18.07.2013) R U 2 5 7 9 8 4 3 (45) Опубликовано: 10.04.2016 Бюл. № 10 Адрес для переписки: 190000, Санкт-Петербург, BOX 1125, "ПАТЕНТИКА" (54) СПОСОБЫ ОБРАБОТКИ КРАСНОГО ШЛАМА (57) Реферат: Группа изобретений относится к области Со, Mg, редкоземельные элементы, редкие обработки ...

一种还原钛铁矿制备可氯化富钛料的方法

本发明公开了一种还原钛铁矿制备可氯化富钛料的方法，包括以下步骤：(1)将还原钛铁矿进行酸浸，待酸浸过程中无气泡产生时，酸浸结束，然后进行过滤得滤渣和滤液；(2)将所得的滤渣进行酸浸，酸浸结束后进行过滤得滤饼和母液；(3)将所得的滤饼经洗涤、干燥即得可氯化富钛料。本发明采用两步酸浸法，通过第一步酸浸除去还原钛铁矿中大部分铁元素，然后进行过滤后第二步酸浸，进一步除去还原钛铁矿中的钙、镁等大部分杂质，获得TiO 2 ≥90％、MgO+CaO＜1.5％的可氯化富钛料；通过第一步酸浸反应除去大部分铁杂质后，二次酸浸所得的浸出液清澈、杂质少、无颗粒物，在后续过滤过程中容易过滤，二氧化钛不会随母液带走，提高了富钛料的品质和收率。

一种低品位天然金红石制备可氯化富钛料的方法

本发明公开了一种低品位天然金红石制备可氯化富钛料的方法，涉及钛化工领域，该方法包括如下步骤：将低品位天然金红石进行磁选，得到天然金红石精矿和钛铁矿，然后对天然金红石精矿先加入酸液、再加入在溶液中能电离出氟离子的助浸剂进行浸出反应，经过固液分离，得到固体物料和酸浸母液，再对固体物料进行洗涤直到呈中性为止，之后经干燥，即可制得合格的可氯化富钛料。本发明采用的方法能耗小、成本低、工艺流程短且对环境友好，不仅具有良好的除杂效果，能大大提高天然金红石中的TiO 2 含量，而且钛的回收率高，能达到95％以上。

A kind of method of Ti-containing slag Selectively leaching titanium

本发明公开了一种含钛炉渣选择性浸出钛的方法，属于钛资源利用技术领域，包括以下步骤：S1.将含钛炉渣破碎并细磨；得到预定细度的含钛炉渣；S2.将细磨后的含钛炉渣进行第一段浸出反应，将浸出后的料浆进行固液分离，得到浸出液和含钛浸出渣；S3.将含钛浸出渣进行第二段浸出反应，将浸出后的料浆进行固液分离，获得浸出钛液和残渣。本发明可以实现含钛炉渣中硅元素的预先脱除和钛元素的选择性高效浸出，浸出钛液中杂质种类和含量少，有利于后续钛液中杂质元素的去除。该工艺流程设计合理，操作简单，无环境污染。

Method for recovering titanium compound, process for preparing titanium halide, and process for preparing catalyst for polymer production

A method for recovering a titanium compound includes bringing a waste solution containing a titanium alkoxide into contact with a halogenating agent to convert at least a part of the titanium alkoxide to a titanium halide, and then distilling the solution containing the titanium halide to recover the titanium halide from the solution, or the method includes distilling a waste solution containing a titanium alkoxide and a titanium halide to recover at least a part of the titanium halide from the waste solution, bringing a residue in a distiller after the distillation into contact with a halogenating agent to convert at least a part of the titanium alkoxide to a titanium halide, and distilling the solution containing the titanium halide to recover the titanium halide from the solution. The method can recover an increased amount of a titanium compound from a waste solution containing a titanium alkoxide.

METHOD FOR PROCESSING PURE VANADIUM-TITANO-MAGNETITE ORES WITH APPLICATION OF WET PROCESS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 146 656 A (51) МПК C22B 34/12 (2006.01) C22B 34/22 (2006.01) C22B 3/10 (2006.01) C22B 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015146656, 10.04.2014 (71) Заявитель(и): ИНСТИТЬЮТ ОФ ПРОУСЕС ЭНЖИНИРИНГ, ЧАЙНИЗ ЭКЭДЕМИ ОФ САЙЕНСИЗ (CN) Приоритет(ы): (30) Конвенционный приоритет: 17.05.2013 CN 201310183647.8; 17.05.2013 CN 201310184750.4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.10.2015 CN 2014/075030 (10.04.2014) (87) Публикация заявки PCT: R U Адрес для переписки: 123242, Москва, пл. Кудринская, д. 1, а/я 35, "Михайлюк, Сороколат и партнеры - патентные поверенные" (54) СПОСОБ ПЕРЕРАБОТКИ ЧИСТЫХ ВАНАДИЕВО-ТИТАНО-МАГНЕТИТОВЫХ РУД С ПРИМЕНЕНИЕМ МОКРОГО ПРОЦЕССА (57) Формула изобретения 1. Способ получения титанового остатка путем переработки чистых ванадиевотитано-магнетитовых руд с применением мокрого процесса, включающий следующие стадии: 1) смешивания чистых ванадиево-титано-магнетитовых руд с раствором HCl и выщелачивание в течение 1-10 ч. при 100-150°С с получением промежуточной суспензии; 2) фильтрования промежуточной суспензии, полученной на стадии 1), с получением выщелоченного остатка и выполнения двухстадийной промывки водой выщелоченного остатка, причем продолжительность промывки водой варьирует от 5 мин. до 60 мин., а температура промывочной воды на каждой стадии промывки водой варьирует от 25°С до 80°С; 3) нейтрализации промытого водой остатка, полученного на стадии 2), разбавленным щелочным раствором в течение 5-60 мин. при 25-80°С, доведения значения рН суспензии до 5-6 и фильтрования нейтрализованной суспензии с получением нейтрализованного остатка; 4) смешивания нейтрализованного остатка, полученного на стадии 3), с раствором NaOH и выполнения промывки щелочью и реакции обескремнивания при 50-110°С в течение 5-60 мин.; Стр.: 1 A 2 0 1 5 1 4 6 6 5 6 A WO 2014/183511 (20.11.2014) 2 0 1 5 1 4 6 6 5 6 (86) Заявка PCT: R ...

Method of processing vanadium-titanium-magnetite concentrate of wet process

FIELD: metallurgy. SUBSTANCE: method comprises mixing a concentrate with a HCl solution to obtain a leached residue. Further, neutralisation is carried out with water of the residue washed with dilute alkaline solution, filtering the neutralized slurry to form a neutralized residue which was mixed with NaOH solution, and washed with alkali to desilication. Then washing is carried out with water, dilute sulfuric acid and adjusting the pH to 5-6, followed by filtration and drying to obtain a filtered residue of the titanium residue. EFFECT: method for the separation and extraction of silver, titanium and iron from mentioned concentrates. 38 cl, 3 dwg, ex 14 РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 628 586 C2 (51) МПК C22B 34/12 (2006.01) C22B 34/22 (2006.01) C22B 3/10 (2006.01) C22B 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015146656, 10.04.2014 (24) Дата начала отсчета срока действия патента: 10.04.2014 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 17.05.2013 CN 201310183647.8; 17.05.2013 CN 201310184750.4 (45) Опубликовано: 21.08.2017 Бюл. № 24 (56) Список документов, цитированных в отчете о поиске: WO 2011143689 A1, 24.11.2011. RU (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.10.2015 2370551 C1, 20.10.2009. RU 2358029 С1, 10.06.2009. WO 9712071 A1, 03.04.1997. GB 2154565 A, 11.09.1985. GB 2294255 A, 24.04.1996. WO 9804750 A1, 05.02.1998. (86) Заявка PCT: CN 2014/075030 (10.04.2014) 2 6 2 8 5 8 6 (43) Дата публикации заявки: 16.05.2017 Бюл. № 14 (73) Патентообладатель(и): ИНСТИТЬЮТ ОФ ПРОУСЕС ЭНЖИНИРИНГ, ЧАЙНИЗ ЭКЭДЕМИ ОФ САЙЕНСИЗ (CN) R U 21.08.2017 (72) Автор(ы): ЦИ, Тао (CN), ВАН, Лина (CN), ЧЭНЬ, Дэшэн (CN), ЧЖАО, Хунсинь (CN), ЛЮ, Яхуэй (CN), СЮЭ, Тяньянь (CN), ЦЮЙ, Цзинкуй (CN) 2 6 2 8 5 8 6 R U WO 2014/183511 (20.11.2014) Адрес для переписки: 123242, Москва, пл. Кудринская, д. 1, а/я 35, "Михайлюк, Сороколат и партнеры - патентные поверенные" ( ...

Process for preparing titanium tetrachloride

FIELD: preparation of titanium chlorides, more particularly titanium tetrachloride. SUBSTANCE: titanium slags or ylmenite or perovskite or rutile or armalcolite or fassaite is subjected to nitration at 1000-1800 C in reducing medium of carbon particles. The resulting matrix comprising titanium nitride is chlorated with chlorinating agent at 200-500 C, to provide the resulting titanium tetrachloride. EFFECT: more efficient preparation process. 1 cl, 2 tbl 5608 0с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ЗВО‘“” 2080 295‘ 13) СЛ МК С 01 С 23/00, 23/02 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5001288/26, 24.07.1991 (30) Приоритет: 25.07.1990 ГА 90/5857 15.02.1991 ГА 91/1146 (46) Дата публикации: 27.05.1997 (56) Ссылки: Патент Великобритании М 1065683, кл. СО1 С 230.2, 1967. (71) Заявитель: Англо-америкэн Корпорейшн оф Саут Африка Лимитед (7А) (72) Изобретатель: Мостерт Герхард Якобус[7А], Рорманн Бодо Рудигер[7А], Ведлейк Роджер Джон[ ГА], Бакстер Родни Чарльз[7 А] (73) Патентообладатель: Англо-америкэн Корпорейшн оф Саут Африка Лимитед (7А) (54) СПОСОБ ПОЛУЧЕНИЯ ТЕТРАХЛОРИДА ТИТАНА (57) Реферат: Использование: получение хлоридов титана, в частности, тетрахлорида титана. Сущность способа: титановые шлаки или ильменит, или перовскит, или рутил, или армалколит, или фассаит — подвергают нитрированию азотом при 1000-1800°С в восстановительной среде частиц углерода. Полученную матрицу, содержащую нитрид титана, хлорируют хлорирующим агентом при 200-500°С. Выделяют полученный тетрахлорид титана. 10 з.п. ф-лы, 2 табл. 2080295 С1 КО 5608 0с ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВО” 2 080 295 Сл (51) п. С1.6 С 01 С 23/00, 23/02 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 5001288/26, 24.07.1991 (30) Рпошу: 25.07.1990 ГА 90/5857 15.02.1991 ГА 91/1146 (46) Бае ог рибИсаНоп: 27.05.1997 (71) АррИсапе: Апда!о-атепКейп Когроге|5Пп о! Зач Анка тКеч (7А) (72) пуетщог. — Моземй Сегквага акКоБиз[ГА], Когтапп Водо ...

Method for production of titanium tetrachloride

FIELD: production of titanium tetrachlorides. SUBSTANCE: titanium slag or ilmenite or perovskite or rutile are affected by nitration. The process is carried out at 1000-1800 C with the help of nitrogen in reduction medium of carbon particles. Thus obtained matrix which contains titanium nitride is chlorinated by chlorinating agent, the process takes place at 200-500 C. Then thus prepared titanium tetrachloride is isolated. EFFECT: improves efficiency of the method. 12 cl, 4 tbl 99566 90с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВОИ "” 2062 256 ' МК С 016 23/00, 23/02 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5001288/26, 24.07.1991 (30) Приоритет: 25.07.1990 ГА 90/5857 15.02.1991 ГА 91/1146 (46) Дата публикации: 20.06.1996 (56) Ссылки: Патент Великобритании М 1065683, МКИ СО1С 2302 (НКИ С1А),1967. (71) Заявитель: Англо-Америкэн корпорейшн оф Саут Африка Лимитед (7А) (72) Изобретатель: Герхард Якобус Мостерт[7А], Бодо Рудигер Рорманн[7А], Роджер Джон Ведлейк[7А], Родни Чарльз Бакстер[7А] (73) Патентообладатель: Англо-Америкэн корпорейшн оф Саут Африка Лимитед (7А) (54) СПОСОБ ПОЛУЧЕНИЯ ТЕТРАХЛОРИДА ТИТАНА (57) Реферат: Использование: получение хлоридов титана, в частности тетрахлорида титана. Сущность способа: титановые шлаки или ильменит, или перовскит, или рутил, или армалколит, или фассаит — подвергают нитрированию азотом при температуре 1000-1800°С в восстановительной среде частиц углерода. Полученную матрицу, содержащую нитрид титана, хлорируют хлорирующим агентом при температуре 200-500°С. Выделяют полученный тетрахлорид титана. 1 с. и 10 з.п.ф-лы, 4 табл. 2062256 С1 КО 99566 90с ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 12) АВЗТКАСТ ОЕ 1МУЕМТОМ ВИ” 2 062 256. (51) 1пЕ. С1.6 13) Сл С 01 С 23/00, 23/02 (21), (22) АррИсаНоп: 5001288/26, 24.07.1991 (30) Рпошу: 25.07.1990 ГА 90/5857 15.02.1991 ГА 91/1146 (46) Бае ог рчбИсаНоп: 20.06.1996 (72) |пуетог: (71) АррИсапе: Апа|о-АтепкКейп Когроге|5Пп о! ...

Method for recovering valuable metal from nickel titanium palladium target material waste

本发明公开了一种从镍钛钯靶材废料中回收有价金属的方法，其包括如下步骤：S1：初步酸浸；S2：回收镍；S3：二次氧化酸浸；S4：回收钛；S5：氧化沉淀钯；S6：洗涤；S7：回收钯。该方法能有效分离回收贵金属钯，及有价金属镍、钛；（2）该方法能有效避免传统工艺中使用硝酸溶解废料以及后续的赶硝处理等步骤，大大缩短钯的回收流程，有效减少能耗及污水、废气的排放；（3）该方法提高了钯的回收率和纯度；（4）该方法的整个工艺过程操作简单，设备投资少，贵金属回收周期短。

Method of processing loparite concentrate

FIELD: hydrometallurgy of processing ore concentrates; complex extraction of titanium, niobium and tantalum compounds from loparite concentrate. SUBSTANCE: proposed method includes break-down of loparite concentrate by hydrochloric acid accompanied by obtaining chloride solutions and separation of titanium, niobium and tantalum compounds from compounds of rare-earth elements followed by obtaining titanium, niobium and tantalum fluoride solutions. Separation of titanium, niobium and tantalum is performed by their extraction from chloride solutions by means of organic mixture containing alkyl phosphoric acid and fluoride solutions of these rare metals are made by re-extraction from extract by means of strong fluohydric acid. EFFECT: facilitated procedure of separation of rare and rare-earth metals. 6 cl, 1 tbl, 6 ex 2211871 С1 КО РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) > зад д Е 7 М С 22В я 424, 34/42, 59/00, 3/04, 3/26 у / м ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12 ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2001132200102, 29.11.2001 (24) Дата начала отсчета срока действия патента: 29.11.2001 (46) Опубликовано: 10.09.2003 (56) Список документов, цитированных в отчете о поиске: СКЛОКИН Л.И. и др. - Цветные металлы, № 10, 2000, с.52-53. КУ 2149908 СЛ, 27.05.2000. ЗЧ 198654, 07.08.1967. 4$ 5084253 А, 28.01.1992. М/О 97/36014 АЛ, 02.10.1997. Адрес для переписки: 193036, Санкт-Петербург, а/я 24, "НЕВИНПАТ", пат.пов. В.И.Андрееву (71) Заявитель(и): Закрытое акционерное общество "Росредмет" (72) Автор(ы): Касикова Н.И.., Зоц Н.В.., Касиков А.Г.., Лейф В.Э. (73) Патентообладатель(и): Закрытое акционерное общество "Росредмет" (54) СПОСОБ ПЕРЕРАБОТКИ ЛОПАРИТОВОГО КОНЦЕНТРАТА Опубликовано на СО-КОМ: ММОЗА КЕО 2003009 МАЕО2003009 ММАА - Досрочное прекращение действия патента Российской Федерации на изобретение из-за неуплаты в установленный срок пошлины за поддержание патента в силе (21) Заявка: 2001132200 Дата прекращения действия ...

Titanium dioxide recovery method

티타늄 함유 물질로부터 이산화티타늄을 회수하는 방법으로서, 상기 방법은 제1 침출 단계에서 티타늄 함유 물질을 대기압에서 그리고 70 내지 97℃의 온도에서 제1 릭시비언트를 사용하여 침출시켜 티타늄 함량을 포함하는 용해되지 않은 제1 침출 고체와 제1 침출액을 포함하는 제1 침출 용액을 생성하는 단계로서, 제1 릭시비언트는　23% w/w 미만의 농도의 염산을 포함하는 것인 단계; 제1 침출액과 용해되지 않은 제1 침출 고체를 분리하는 단계;　제2 침출 단계에서 제1 침출 고체를 대기압에서 그리고 60 내지 80℃의 온도에서 Fe 분말 환원제의 존재 하에 제2 릭시비언트를 사용하여 침출시켜 용해되지 않은 제2 침출 고체와 침출된 티타늄 함량 및 철 함량을 포함하는 제2 침출액을 포함하는 제2 침출 용액을 생성하는 단계로서, 제2 릭시비언트는 23% w/w 미만의 염산과 알칼리 금속 염화물, 염화마그네슘 및 염화칼슘, 또는 이들의 혼합물로부터 선택된 추가의 염화물을 포함하는 혼합 염화물 용액을 포함하는 것인 단계; 제2 침출액과 용해되지 않은 제2 침출 고체를 분리하는 단계;　및 그 후 이산화티타늄과 철 함량을 침전에 의해 제2 침출액으로부터 분리하고, 제2 릭시비언트를 재생하여 제2 침출 단계로 재순환시키는 단계를 포함한다.

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 ...

Method for desiliconizing hydrated oxide valuable element during leaching

本发明公开了一种水合氧化物有价元素浸出时脱硅的方法。该方法包括以下步骤：S1，对水合氧化物渣进行脱水处理和渣的散碎处理；S2，干化蚀变，向水合氧化物渣中加入硫酸和水，通过控制硫酸的浓度、水的添加量、反应温度及搅磨强度实现第一次生成过滤性硅聚沉体；S3，添加水使在第一次生成过滤性硅聚沉体与未完全反应块料二次反应生成过滤性硅聚沉体；S4，添加助溶剂提高体系离子强度强化可溶硅的聚沉行为，然后稀释至设定固液比，进行固液分离。应用本发明的技术方案，不仅可以实现矿渣中有价元素浸出，同时抑制了杂质硅元素的浸出。

Method for extracting vanadium from waste SCR catalyst and preparing alkali metal fluotitanate, product and application thereof

本发明涉及一种废弃SCR催化剂提钒并制备碱金属氟钛酸盐的方法及其产品和用途，所述方法以废弃SCR催化剂为原料，将其与碱金属化合物混合之后经水热处理或焙烧‑浸出处理后，得到含钒溶液和富含碱金属钛酸盐的固相混合物，之后经酸洗脱硅除杂后，与氢氟酸混合反应，得到碱金属氟钛酸盐，所述方法以废弃SCR催化剂为原料，制备得到高附加值的碱金属氟钛酸盐，同时实现了对废弃SCR催化剂中V元素和Ti元素的回收，其所得产物碱金属氟钛酸盐具有高的品位，所得碱金属氟钛酸盐能作为生产含钒钛合金的原料。

A method of processing hydrochloric acid leachate of ferrotitanium materials

本发明提供一种用于处理钛铁物料盐酸浸出液的方法，所述方法包括：将使用盐酸浸取液浸取钛铁物料得到的浸出母液经分流后得焚烧浸出母液和循环浸出母液，焚烧浸出母液经文丘里预浓缩及多效蒸发浓缩后,再经焚烧炉焚烧回收盐酸用于浸取液再生。采用本发明的方法可以克服现有盐酸浸取钛铁物料后焚烧工序焚烧量与能耗过大的缺陷，可减少浸出母液焚烧量26.65％，从而降低整个工艺能耗18％，具有良好的工业应用前景。

Titanium-enriched ilmenite residue, its application and method of obtaining titanium pigment

FIELD: chemistry. SUBSTANCE: claimed is titanium-enriched residue after leaching of ilmenite with hydrochloric acid as raw material for obtaining titanium-containing pigment by means of sulfuric acid method. Titanium enriched residue consists of friable and porous residue, obtained after removal of iron from crystal lattice of ilmenite (FeTiO 3 ) by leaching with hydrochloric acid, and metatitanic acid aggregates. Residue contains small amounts of retile and titanium augite, with larger part of constituting it TiO 2 being amorphous. Solid substance, obtained after leaching, is dried with formation of titanium-enriched residue. Residue is soluble in sulfuric acid, with water content in it constituting not more than 20%, with residue representing white, light-yellow or light-gray particles or powder, in which content of amorphous TiO 2 constitutes 65-97%, the total content of iron constitutes not more than 8%, and specific weight of residue constitutes 2.9-3.6. EFFECT: obtaining titanium-containing pigment by means of titanium-enriched residue, which makes it possible to efficiently recycle finely disperse ilmenite of the region, obtain solution of titanium sulfate with super low ratio of iron to titanium dioxide (Fe/TiO 2 ) and double productivity of recycling equipment. 7 cl, 6 dwg, 12 tbl, 12 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 518 860 C2 (51) МПК C22B 34/12 (2006.01) C01G 23/053 (2006.01) C22B 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012107645/02, 02.09.2010 (24) Дата начала отсчета срока действия патента: 02.09.2010 (72) Автор(ы): ЧЭНЬ Шучжун (US), ВАН Боб Чжэнци (US) 02.09.2009 CN 200910306494.5 (43) Дата публикации заявки: 10.10.2013 Бюл. № 28 R U (73) Патентообладатель(и): ША Лилинь (CN), ЧЭНЬ Шучжун (US) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 10.06.2014 Бюл. № 16 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.04.2012 C 2 C 2 ...

Obtaining reduced titanium powder by multi-step deep reduction

FIELD: metallurgy. SUBSTANCE: invention relates to powder metallurgy, particularly, to production of reduced titanium powder by multi-stage deep reduction. Method involves mixing the dried titanium dioxide powder with magnesium powder to a uniform state, adding the powder to the self-propagating reaction furnace in order to initiate self-propagating reactions. After obtaining semi-product of low-valence titanium oxide Ti x O, scattered in matrix MgO, intermediate product is leached with hydrochloric acid as washing solution, followed by filtration, washing and vacuum drying. Low-valence titanium oxide Ti x O precursor is obtained, which is uniformly mixed with calcium powder, subjected to pressing and placed into a vacuum recovery furnace for secondary deep reduction. Product of deep recovery of leaching with hydrochloric acid, as a leaching solution, is used to produce reduced titanium powder. EFFECT: method enables to obtain titanium powder of high purity, accurate particle size when controlling distribution by particle size and high activity of the powder. 10 cl, 1 dwg, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 716 296 C1 (51) МПК C22B 34/12 (2006.01) B22F 9/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 34/12 (2020.02); B22F 9/20 (2020.02) (21)(22) Заявка: 2019123302, 21.05.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 11.03.2020 23.05.2017 CN 201710365974.3 (73) Патентообладатель(и): НОРТИСТЕРН ЮНИВЕРСИТИ (CN) (45) Опубликовано: 11.03.2020 Бюл. № 8 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 25.09.2019 (86) Заявка PCT: R U 2 7 1 6 2 9 6 C 1 CN 2018/087688 (21.05.2018) (87) Публикация заявки PCT: WO 2018/214849 (29.11.2018) Адрес для переписки: 125009, Москва, ул. а/я 332, ООО "ИНЭВРИКА" (54) ПОЛУЧЕНИЕ ВОССТАНОВЛЕННОГО ПОРОШКА ТИТАНА МЕТОДОМ МНОГОСТАДИЙНОГО ГЛУБОКОГО ВОССТАНОВЛЕНИЯ (57) Реферат: Изобретение относится к порошковой осуществляют ...

Method for treating waste SCR catalyst by sodium roasting

本发明实施例公开了一种利用钠化焙烧处理废SCR催化剂的方法，本发明通过钠化焙烧实现了对钛和钨的资源化回收利用，改进后工艺无需对废SCR催化剂进行粉碎，缩短了工艺流程，节省了工厂设备投资，且由于粒度控制比较大，在焙烧环节有效的减少了生产过程中产生的粉尘，从环保上，由于粉尘减少，减轻了焙烧设备通风管道由于粉尘的堵塞压力，减少了粉尘排放，有利于环境保护，从实际经济效益上看，粉尘产生率比原有工艺可以减低93.5％，有效提高了物料的回收，提高了物料中有价金属的回收，提高了整体的经济效益；此外，处理作业中对碱液进行回收，对高钠正钛盐进行水洗，以减少对净水的使用量。

A kind of Ti-containing slag produces TiO2The method of powder

本发明公开了一种含钛炉渣制取TiO 2 粉体的方法，属于钛资源利用技术领域，本发明针对含钛炉渣中杂质元素种类多、含量大，杂质组分复杂等因素，利用钛元素含氟和铵配合物与杂质元素含氟和铵配合物溶解性能的差异，以[NH 4 + ]‑[F ‑ ]体系的氟化浸出剂选择性浸出含钛炉渣，使含钛炉渣中的钛元素溶解在浸出液中，全部的钙、镁、铝及大部分的铁、锰、钒、铬等杂质以沉淀物的形式残留在浸出渣中。对氟化浸出液进行除杂，以沉淀形式去除浸出液中的铁、锰、钒、铬等杂质，达到净化浸出液的目的。对净化后的浸出液进行水解，使其中的钛组分水解为可制备TiO 2 粉体的前驱体沉淀，最后TiO 2 前驱体经热水解脱氟和脱氨，再经煅烧转型成为TiO 2 粉体。

Methods of extracting rare-earth elements from aluminium-containing materials

Настоящее изобретение относится к обработке алюминийсодержащего материала, в частности к извлечению редкоземельных элементов из алюминийсодержащего материала. Способ включает стадии, в которых проводят выщелачивание алюминийсодержащего материала кислотой для получения экстракта, включающего по меньшей мере один ион алюминия, по меньшей мере один ион железа, по меньшей мере один редкоземельный элемент, и твердого вещества и отделение экстракта от твердого вещества. Способ также включает стадии, в которых селективно удаляют по меньшей мере один из по меньшей мере одного иона алюминия и по меньшей мере одного иона железа из экстракта и необязательно получают осадок. Способ также содержит стадии, в которых селективно удаляют по меньшей мере один редкоземельный элемент из экстракта и/или осадка. Техническим результатом является возможность извлечения редкоземельных элементов из разнообразных алюминийсодержащих матеиалов. 7 н. и 138 з.п. ф-лы, 5 ил., 3 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C22B 3/10 C22B 3/20 C22B 59/00 C22B 58/00 C22B 21/00 (13) 2 588 960 C2 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013146790/02, 19.03.2012 (24) Дата начала отсчета срока действия патента: 19.03.2012 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.04.2015 Бюл. № 12 (73) Патентообладатель(и): ОРБИТ ЭЛЮМИНЭ ИНК. (CA) (56) Список документов, цитированных в отчете о поиске: US 6248302 B1, 19.06.2001. US 4560541 A, 24.12.1985. SU 1426449 А3, 23.09.1988. WO 2010079369 A1, 15.07.2010. US 4222989 A, 16.09.1980. WO 2009153321 A1, 23.12.2009. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.10.2013 2 5 8 8 9 6 0 (45) Опубликовано: 10.07.2016 Бюл. № 19 R U 18.03.2011 US 61/454,211; 16.09.2011 US 61/535,435 (72) Автор(ы): БУДРО, Ришар (CA), ПРИМО, Дени (CA), ФУРНЬЕ, Жоэль (CA), СИМОНО, Раймон (CA), ГАРСИЯ, Мария Кристина (CA), ...

METHODS FOR PROCESSING RED SLUR

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 104 423 A (51) МПК C22B 59/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016104423, 10.01.2013 (71) Заявитель(и): ОРБИТ ТЕКНОЛОДЖИС ИНК. (CA) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): БОДРО Ришар (CA), ФУРНЬЕР Жоэль (CA), ПРИМО Дэнис (CA), ЛАБРЕК-ГИЛБЕРТ Мари-Максим (CA) 33 Адрес для переписки: 190000, Санкт-Петербург, BOX 1125, "ПАТЕНТИКА" R U (57) Формула изобретения 1. Способ обработки красного шлама, включающий: выщелачивание красного шлама с использованием соляной кислоты (HCl) с получением продукта выщелачивания, содержащего ионы алюминия и ионы железа и твердое вещество, и выделение указанного твердого вещества из указанного продукта выщелачивания; приведение во взаимодействие указанного продукта выщелачивания с HCl с получением, жидкости, содержащей указанные ионы железа, и осадка, содержащего указанные ионы алюминия в виде AlCl3, и отделение указанного осадка от указанной жидкости; нагревание указанного осадка с получением Al2O3, и выделение получаемой газообразной HCl; и повторное использование полученной таким образом газообразной HCl путем приведения ее в контакт с водой с получением таким образом композиции, имеющей концентрацию от 25 до 45 масс. % и использование указанной композиции для выщелачивания указанного красного шлама. 2. Способ обработки красного шлама, включающий: по меньшей мере частичное удаление ионов железа из указанного красного шлама путем приведения указанного красного шлама во взаимодействие с кислотой с получением рН более 10 и по меньшей мере частичного удаления ионов железа из указанного красного шлама; выщелачивание указанного красного шлама с использованием соляной кислоты Стр.: 1 A 2 0 1 6 1 0 4 4 2 3 A (54) СПОСОБЫ ОБРАБОТКИ КРАСНОГО ШЛАМА 2 0 1 6 1 0 4 4 2 3 (43) Дата публикации заявки: 22.11.2018 Бюл. № R U 10.01.2012 US 61/584,993; 26.09.2012 US 61/706,074; 15.10.2012 US 61/713,719 (62) Номер и дата ...

Method for handling the difficult mineral of race containing garnet

本发明公开了一种用于处理含石榴石族难处理矿物钠盐的协同焙烧综合利用方法。本发明将含石榴石族难处理矿物与复合碱均匀混合，快速升温至指定温度，高温焙烧，利用复合碱协同作用快速破坏矿物中石榴石晶格结构，释放嵌于晶格中的有价元素，经过碳分、水解得到各种有价元素水解物或混合水解物，浸渣为多孔活性材料，用于制备载体或者吸附剂，从而实现含石榴石族难处理矿物全元素综合回收。本发明通过碳循环、碱循环，和氨循环提高流程的经济性；本发明将石榴石族难处理矿物全元素利用，浸出率高，绿色环保，应用前景广阔。

Processes for recovering rare earth elements from aluminum-bearing materials

There are provided processes for recovering at least one rare earth element and/or at least one rare metal chosen from In, Zr, Li and Ga from an aluminum-bearing material. The processes comprise: leaching the material with HCI so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, the at least one rare earth element and/or the at least one rare metal, and a solid, and separating the leachate from the solid; substantially selectively removing the at least one aluminum ion from the leachate; substantially selectively at least partially removing the at least one iron ion; and substantially selectively removing the at least one rare earth element and/or the at least one rare metal.

Recovery of titanium values in high yield - by reductive roast and hydrogen halide leach

Ti values are recovered by roasting, the crushed source e.g. ilmenite at 600-1000 degrees C in presence of H2 and/or CO gas, leaching with hydrogen halide at up to 110 degrees C sepg. gangue and cooling solubilised metal halides to ppts. FeCl2. The leach liquor is then treated at 70-100 degrees C with 2.5-50 times stoichiometrically required amount of Fe2O3 to convert Ti halide to TiO2. The leach liquor is agitated and solids are recovered and mixed with a second leach soln. contg. sufficient Ti halide to consume remaining Fe2O3. TiO2 is recovered. The ore e.g. ilmenite is crushed to -35 mesh and roasted at 600-900 degrees C in a 50-50 CO-H2 gas mixt. for 0.25-2 hours., then leached with HCl at 80-100 degrees C for 0.25-1 hour. The leach liquor is cooled to 0-90 degrees C to cause crystillisation of FeCl. The excess of Fe2O3 is then added and reaction allowed to proceed for 1-10 minutes after which solids are removed and mixed with the second leach solution.

Process for working titanium ores

Method of attack by hydrochloric acid on minerals containing titanium dioxide

Patent FR2665182B1

Preliminary processing of refractory titanium ores

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2007 121 382 (13) A (51) ÌÏÊ C22B 34/12 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2007121382/02, 09.12.2005 (71) Çà âèòåëü(è): ÀËÒÀÈÐ ÍÀÍÎÌÀÒÅÐÈÀËÇ Èíê. (US) (30) Êîíâåíöèîííûé ïðèîðèòåò: 10.12.2004 US 60/635,284 (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2009 Áþë. ¹ 2 (87) Ïóáëèêàöè PCT: WO 2006/063221 (15.06.2006) Àäðåñ äë ïåðåïèñêè: 107078, Ìîñêâà, Êðàñíîâîðîòñêèé ïð-ä, 3, ñòð.1, ê.18, ÎÎÎ Ïàòåíòíî-ïðàâîâà ôèðìà "Èñêîíà-II", ïàò.ïîâ. Å.À.Ãàâðèëîâîé, ðåã. ¹ 50 R U (57) Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá ïðåäâàðèòåëüíîé îáðàáîòêè îêñèäèðîâàííûõ ñîåäèíåíèé òèòàíà, òèòàíñîäåðæàùåé ðóäû, ðóäíîãî êîíöåíòðàòà èëè èõ ñìåñåé, âêëþ÷àþùèé à. äîáàâëåíèå ñîåäèíåíè æåëåçà ê îêñèäèðîâàííûì ñîåäèíåíè ì òèòàíà, òèòàíñîäåðæàùåé ðóäå, ðóäíîìó êîíöåíòðàòó èëè èõ ñìåñ ì è ñìåøèâàíèå äë ïîëó÷åíè ñìåñè; b. íàãðåâàíèå ñìåñè â óñëîâè õ êîíòðîëèðóåìîé âîçäóøíîé ñðåäû â òå÷åíèå âðåìåíè ôîðìèðîâàíè æåëåçîòèòàíîâîãî ñîåäèíåíè ; ñ. îõëàæäåíèå æåëåçîòèòàíîâîãî ñîåäèíåíè ; è d. èçìåëü÷åíèå æåëåçîòèòàíîâîãî ñîåäèíåíè äë ïîëó÷åíè ïîðîøêà, ïðèãîäíîãî äë ðàñòâîðåíè â ñîë íîé êèñëîòå. 2. Ñïîñîá ïî ï.1, â êîòîðîì òèòàíñîäåðæàùà ðóäà èëè ðóäíûé êîíöåíòðàò âêëþ÷àþò ñîåäèíåíèå, âûáðàííîå èç ãðóïïû, ñîäåðæàùåé ðóòèë, àíàòàç, ëåéêîêñåí, áðóêèò, ïñåâäîáðóêèò, ïñåâäîðóòèë, è èõ ñìåñè. 3. Ñïîñîá ïî ï.1, â êîòîðîì ñîåäèíåíèå æåëåçà ïðåäñòàâë åò ñîáîé ìåòàëëè÷åñêîå æåëåçî. 4. Ñïîñîá ïî ï.1, â êîòîðîì ñîåäèíåíèå æåëåçà ïðåäñòàâë åò ñîáîé îêñèä äâóõâàëåíòíîãî æåëåçà. 5. Ñïîñîá ïî ï.1, â êîòîðîì ñîåäèíåíèå æåëåçà âûáðàíî èç ãðóïïû, ñîñòî ùåé èç æåëåçíîãî ïîðîøêà, îêñèäà äâóõâàëåíòíîãî æåëåçà, îêñèäà òðåõâàëåíòíîãî æåëåçà, è èõ ñìåñåé. 6. Ñïîñîá ïî ï.4, â êîòîðîì êîëè÷åñòâî äîáàâëåííîãî îêñèäà äâóõâàëåíòíîãî æåëåçà Ñòðàíèöà: 1 RU A 2 0 0 7 1 2 1 3 8 2 A (54) ÏÐÅÄÂÀÐÈÒÅËÜÍÀß ÎÁÐÀÁÎÒÊÀ ÒÓÃÎÏËÀÂÊÈÕ ÒÈÒÀÍÎÂÛÕ ÐÓÄ 2 0 0 7 1 2 1 3 8 2 (86) Çà âêà PCT: US 2005/044599 (09.12.2005) R U (85) Äàòà ïåðåâîäà çà ...

PROCEDURE FOR THE PREPARATION OF SYNTHETIC RUTIL FROM A TITAN containing slag.

High titanium salt acidleach is slagged tap, the preparation method of its new purposes and titanium dioxide

本发明属于钛白粉生产领域，具体涉及钛铁矿以盐酸浸出法得到的高钛盐酸浸出渣、其新用途及钛白粉的制备方法。本发明提供一种适用于硫酸法制备钛白粉的高钛盐酸浸出渣，该浸出渣可作为原料用于硫酸法制备钛白粉。应用高钛盐酸浸出渣制备钛白粉，可有效利用细粒的攀西地区钛铁矿，利用率几乎100％，可获得铁钛比超低的钛液，可使酸解设备的生产能力增加一倍，同时可省去耗能较大的冷冻除铁与钛液浓缩二个阶段；大大减少偏钛酸水洗次数，从而减少了酸性废水的排放；也可减少硫酸亚铁的产生，本发明方法为硫酸法制备钛白粉生产提供了新的、更好的原料选择。

PROCESS FOR TREATING TITANIFEROUS MATERIALS

PROCESS FOR THE PRODUCTION OF TITANIUM IN THE METALLIC STATE OR OF COMPOUNDS CONTAINING TITANIUM

Process for the production of group ivb transition metal-alkali metal-fluoride salts and purification thereof

Method for extracting metal ions from red mud using ultrasonic waves

本发明公开一种利用超声波从赤泥中提取金属离子的方法，所述提取金属离子的方法能够从作为从铝土矿(bauxite)中提取铝后剩余的废弃物的赤泥中有效地提取金属离子。根据本发明的实施例的利用超声波从赤泥中提取金属离子的方法包括：(a)洗脱所述赤泥中含有的金属离子的步骤,其中，向插入于恒温槽内部的反应槽内①投入中和的赤泥泥浆及酸性溶液或者②投入粉末形态的赤泥、蒸馏水及酸性溶液,加热所述恒温槽使所述反应槽内的赤泥泥浆进行反应的同时施加超声波，从而洗脱所述赤泥中含有的金属离子；以及(b)分离回收赤泥残渣和提取滤液的步骤，其通过过滤在所述(a)步骤中的反应后生成物来分离回收赤泥残渣和提取滤液；并且在所述(a)步骤中，所述施加超声波是利用超声波发生器，通过向安装于所述恒温槽的内部的超声波尖端施加超声波的方式实施。

Production of synthetic rutile by continuous leaching

A reactor 20 has a plurality of tubular downcomers 32, 34, 36, 38, 40 and risers 42, 44, 46, 48, 50, joined by sections 86, 88 in a continuous serpentine path the tubes dimensioned to provide substantially plug flow conditions for solid and liquid reagents fed into a first downcomer 24 with the products extracted from final riser 52. The reactor 20 is designed for a desired residence time by the number, height and diameter of the tubes. The downcomers 24, 32, 34, 36, 38, 40 may include a bend to improve residence time and to thereby reduce the number of tubes required for a desired overall residence time. The reactor 20 can be used in a leaching operation for producing synthetic rutile, where a pre-treated feedstock including ilmenite, leueoxene or titania slag is leached with hot HCl.

Processes for treating red mud

(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date W O 2013/104059 A1 18 July 2013 (18.07.2013) W I PO I P CT (51) International Patent Classification: (74) Agent: BERESKIN & PARR LLP/S.E.N.C.R.L., S.R.L.; C22B 3/10 (2006.01) C01G 23/04 (2006.01) 40th Floor, 40 King Street West, Scotia Plaza, Toronto, C01B 13/18 (2006.01) CO1G 49/00 (2006.01) Ontario M5H 3Y2 (CA). COF 7/00 (2006.01) C22B 3/46 (2006.01) (81) Designated States (unless otherwise indicated, for every COF 7/02 (2006.01) C22B 21/100 (2006.01) kind of national protection available): AE, AG, AL, AM, C01G 3 (2006.0 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (21) International Application Number: DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, PCT/CA2013/000021 HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, (22) International Filing Date: ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, 10 January 2013 (10.01.2013) NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, (25) Filing Language: English RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, (26) Publication Language: English ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 61/584,993 10 January 2012 (10.01.2012) US kind of regional protection available): ARIPO (BW, GH, 61/706,074 26 September 2012 (26.09.2012) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, 61/713,719 15 October 2012 (15.10.2012) US UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (71) Applicant: ORBITE ALUMINAE INC. [CA/CA]; 6505 TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, route Transcanadienne, Bureau 610, Saint-Laurent, Quebec EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, H4T IS3 (CA). MC ...

Recovery of high purity titanium from ilmenite - by formation of tri:chloride and subsequent crystallisation from aq. soln.

Ilmenite ore is reduction roasted at 600-900 degrees C and is then leached with hot aqueous HCl soln. The resultant soln. of TiCl3 and FeCl2 is cooled and saturated with gaseous HCl to ppt. FeCl2, which is separated, after which the residual soln. is heated to 20-30 degrees C. to ppt. hydrated TiCl3 which is separated. Pref. leaching is carried out at 80-110 degrees C, and saturation of the leach soln. with HCl at 0-20 degrees C. The invention is directed to recovery of Ti from ilmenite with improved separation from impurities, particularly iron, than is possible by recovery as TiCl4.

Process for the recovery of titanium values

This invention provides a process for the recovery of titanium values from a complex matrix comprising titanium nitride. The process comprises chlorinating the titanium nitride in the matrix to obtain a reaction product containing titanium chloride, and separating the titanium chloride from the reaction product. The invention also provides for the production of said complex matrix containing titanium nitride by nitriding titanium values in complex titanium-containing starting materials such as complex metallurgical titaniferous slags and ilmenite, perovskite, armalcolite and fassaite.

METHODS FOR PRODUCING ALUMINUM OXIDE AND VARIOUS OTHER PRODUCTS

1. Способ получения оксида алюминия, причем указанный способ включает стадии, на которых:проводят выщелачивание алюминийсодержащего материала действием HCl для получения продукта выщелачивания, включающего ионы алюминия, и твердого вещества и отделяют указанное твердое вещество от указанного продукта выщелачивания;вводят указанный продукт выщелачивания в реакцию с HCl для получения жидкости и осадка, включающего указанные ионы алюминия в форме AlCl, и отделяют указанный осадок от указанной жидкости;нагревают указанный осадок в условиях, эффективных для преобразования AlClв AlOи получения HCl;повторно используют указанный полученный таким образом газообразный HCl введением его в контакт с водой для получения композиции, имеющей концентрацию от около 25 до около 45% по весу, и используют указанную композицию для выщелачивания указанного алюминийсодержащего материала.2. Способ получения оксида алюминия, причем указанный способ включает стадии, на которых:проводят выщелачивание алюминийсодержащего материала, который содержит железо, действием HCl для получения продукта выщелачивания, включающего ионы алюминия, и твердого вещества и отделяют указанное твердое вещество от указанного продукта выщелачивания;вводят указанный продукт выщелачивания в реакцию с HCl для получения жидкости, включающей по меньшей мере один хлорид железа, и осадка, включающего указанные ионы алюминия в формеAlCl, и отделяют указанный осадок от указанной жидкости;нагревают указанный осадок в условиях, эффективных для преобразования AlClв AlOи, необязательно, для регенерации полученного таким образом газообразного HCl;концентрируют указанную жидк� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C01F 7/30 (11) (13) 2014 114 938 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014114938/05, 17.09.2012 (71) Заявитель(и): ОРБИТ ЭЛЮМИНЭ ИНК. (CA) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.10.2015 Бюл. № 30 (72) Автор(ы): ...

Method for recovering titanium values from a complex matrix.

Recovery of titanium dioxide from ilmenite-type ores

Agglomeration of titania

根据本发明提供一种二氧化钛熔渣粒子的附聚方法，该方法包括提供d 50 粒度小于106μm的二氧化钛熔渣；混合熔渣粒子与有机粘结剂；和附聚熔渣粒子和有机粘结剂的混合物成d 50 粒度为106μm－1000μm的附聚粒子。附聚粒子的(TiO 2 和FeO)/C质量比大于3.4。本发明也涉及这样的附聚熔渣粒子和生产TiO 2 的氯化物方法，其中使用这样的附聚的二氧化钛熔渣粒子。

Method for recovering titanium compound and process for preparing titanium tetrachloride

본 발명에 의한 티탄 화합물의 회수 방법은 티탄 알콕사이드를 함유하는 폐용액과 할로겐화제를 접촉시켜, 상기 티탄 알콕사이드의 적어도 일부를 티탄 할로겐화물로 전환시킨 다음, 상기 티탄 할로겐화물을 함유하는 용액을 증류함으로써 용액 중의 티탄 할로겐화물을 회수하거나, 또는 티탄 알콕사이드 및 티탄 할로겐화물을 함유하는 폐용액을 증류하여 그 폐용액 중의 티탄 할로겐화물의 적어도 일부를 회수하고, 증류한 후에 얻어진 증류기내의 잔액을 할로겐화제와 접촉시켜, 상기 티탄 알콕사이드의 적어도 일부를 티탄 할로겐화물로 전환시킨 다음, 상기 티탄 할로겐화물을 함유하는 용액을 증류함으로써 용액 중의 티탄 할로겐화물을 회수한다. 본 발명의 방법에 의하면, 티탄 알콕사이드를 함유하는 폐용액으로부터 다량의 티탄 화합물을 회수할 수 있다. The method for recovering a titanium compound according to the present invention comprises contacting a waste solution containing titanium alkoxide and a halogenating agent, converting at least a portion of the titanium alkoxide to titanium halide, and then distilling the solution containing titanium halide. Recover the titanium halide in the solution, or distill the waste solution containing titanium alkoxide and titanium halide to recover at least a part of the titanium halide in the waste solution, and the residue in the distillation obtained after distillation is contacted with the halogenating agent. The titanium halide in the solution is recovered by converting at least a portion of the titanium alkoxide to titanium halide and then distilling the solution containing the titanium halide. According to the method of the present invention, a large amount of titanium compound can be recovered from the waste solution containing titanium alkoxide.

Method of producing titanium from titanium oxides through magnesium vapour reduction

Disclosed herein is a novel approach to the chemical synthesis of titanium metal from a titanium oxide source material, such as a mineral comprising titanium. In the approach described herein, a titanium oxide source is reacted with Mg vapor to extract a pure Ti metal. The method disclosed herein is more scalable, cheaper, faster, and safer than prior art methods.

Leaching of titaniferous materials

促进从含钛物料中除去一种或多种杂的方法，含钛物料所含杂质为在酸中高度可溶的形式。用硫酸溶液或盐酸溶液轮流浸提该物料(以两种顺序均可)。为增强杂质对去除的灵敏度，通过下面一种或多种方法来增强盐酸浸提：(i)添加有效量的氯化物；(ii)用有效量的碳酸盐溶液预处理含钛物料，优选的是用碱金属或碱土金属的碳酸盐；和/或(iii)用有效量的氢氧化物溶液预处理含钛物料，优选的是用碱金属或碱土金属的氢氧化物。

Recovery of vanadium from slag materials

A method for the recovery of vanadium from a vanadium containing feed stream, the method comprises: subjecting the vanadium containing feed stream to an acid leach step to form a slurry including a pregnant leach solution that comprises dissolved vanadium and a solid residue; passing the product of the leach step to a solid/liquid separation step to produce a pregnant leach solution that comprises dissolved vanadium; contacting the pregnant leach solution with a reducing agent to reduce one or more species in the pregnant leach solution; passing the pregnant leach solution to a precipitation step in which the solution pH is increased to precipitate a vanadium product; and recovering the vanadium product from the solution.

Upgrading of titaniferous material

A method of upgrading a titaniferous material includes nitriding and reducing a titaniferous material which includes TiO2 and Fe oxides in the presence of nitrogen and carbon to convert the TiO2 to TiN and to reduce most of the Fe oxides to Fe. The Fe is oxidised in preference to the TiN to form Fe2+ ions, whereafter the Fe2+ ions are removed to produce an upgraded low-Fe TiN bearing material.

Process for purifying inorganic materials

The invention relates to a process for purifying inorganic materials by treating the materials with a solution of hydrogen fluoride in aqueous hydrofluorosilicic acid. The process involves treating an inorganic material containing at least two species, to at least partially separate a first species contained in the material from a second species contained in the material, and comprises treating the material with a fluorine acid solution comprising aqueous hydrofluorosilicic acid and hydrofluoric acid (HF), such that the first species is converted to a product selected from the group consisting of a fluoride, a fluorosilicate and mixtures thereof, and such that the second species is at least partly unreacted, and separating the second species from the product.

Processes for producing titanium dioxide

Provided are processes for the production of titanium dioxide from ilmenite. In these processes, ilmenite is digested with aqueous trimethylammonium hydrogen oxalate. Iron from the ilmenite precipitates as a hydrated iron oxalate and is removed by filtering, leaving a titanium-rich solution. The titanium-rich solution can be further processed to form titanium dioxide.

Recovery of iron and titanium metal values

Iron metal values and titanium metal values may be recovered from iron and titanium bearing sources such as an ilmenite ore by subjecting the source to a reductive roast after crushing the source to a desired particle size. The reduced source is then leached by treatment with a halogen-containing compound to form soluble titanium halides and iron halides. Thereafter the soluble titanium halide is precipitated by treatment with iron oxides such as ferric oxide and after separation from the soluble iron halides is recovered as titanium dioxide. The soluble iron halides are then crystallized by reducing the temperature of the solution and one portion of the crystals are subjected to a reduction step to form metallic iron. The other portion of the iron halide crystals is oxidized to form ferric oxide which is used to precipitate the titanium compound.

Process for processing titaniferrous materials

Method for simultaneously extracting vanadium, titanium and chromium from vanadium slag

本发明提供了一种同时提取钒渣中钒、钛、铬的方法，包括：用草酸和强酸的混合水溶液对钒渣进行浸出，得到含钒、钛、铬的浸出液。本发明利用草酸的酸性和络合性协同强酸的酸性和腐蚀性来浸出钒渣中的钒、钛、铬，达到了高效提取钒渣中钒、钛、铬的目的；利用草酸的还原性和络合性与浸出液中的铁、锰、钙、镁等杂质反应生成了沉淀，实现了杂质的去除，进而得到了主要成分为钒、钛、铬的浸出液。实施例的结果显示，采用本发明的方法提取钒渣中的钒、钛、铬，浸出率分别可达99.6％、99.8％、99.2％，浸出液中杂质铁、锰、钙、镁的质量含量分别为0.81％、0.93％、0.64％、0.77％。

Recovery of rare earths from concentrates containing fluorine

The present invention relates to the recovery of rare earths, scandium, niobium, tantalum, zirconium, hafnium, titanium, and the like from ores or concentrates containing fluorine. More specifically, the ores or concentrates are pretreated by carbochlorination to convert the rare earths and other metals into their chlorides and then subjected to dilute hydrochloric acid leaching to recover the valuable rare earths and other metals from the leachate. Niobium, tantalum, zirconium, hafnium, and titanium can be recovered as their chlorides or oxychlorides from the gaseous products of carbochlorination, or converted into their oxides while simultaneously regenerating chlorine.

Production of synthetic rutile

The specification describes a process for producing synthetic rutile from a titaniferous ore or concentrate. The process involves three basic steps which are reduction, removal or iron by leaching or aeration and removal of other impurities by leaching in a solution of a strong mineral acid such as hydrochloric acid or sulphuric acid. The conditions of reduction are controlled to promote the formation of metallic iron, a major rutile phase and a minor impurity bearing phase. The minor impurity phase may be a metatitanate, an anosovite or a pseudobrookite. However, formation of a metatinatate is normally preferred. Suitable reductants include carbonaceous materials or hydrogen bearing gases such as natural gas or synthesis gas. The process is capable of removing more than 80 % of each of the contained iron magnesium and manganese remaining as oxides after reduction. Substantial proportions of contained aluminium can also be removed.

Vanadium recovery process

A vanadium recovery process (10), the process comprising: (i) passing an ore or concentrate (12) containing vanadium, titanium and iron to a reduction step (18) forming a reduced ore or concentrate; (ii) passing the reduced ore or concentrate to a ferric leach step (22) to produce a ferric leachate (26) containing iron and a ferric leach residue (30) containing vanadium; (iii) passing the ferric leachate (26) to a ferric oxidation step (28) producing an iron product (68); (iv) passing the ferric leach residue (30) to an acid leach step (32) producing an acid leachate (44) containing vanadium and an acid leach residue (36) containing titanium; (v) Passing the acid leachate (44) to a vanadium recovery step (46, 48) from which a vanadium product is produced; and (vi) Passing the acid leach residue (36) to a titanium pigment production process (42) whereby a titanium dioxide pigment is produced.

Processes for preparing alumina and various other products

There are provided processes for preparing alumina. These processes can comprise leaching an aluminum-containing material with HCl so as to obtain a leachate comprising aluminum ions and a solid, and separating said solid from said leachate; reacting said leachate with HCl so as to obtain a liquid and a precipitate comprising said aluminum ions in the form of AlCl 3 , and separating said precipitate from said liquid; and heating said precipitate under conditions effective for converting AlCl 3 into Al 2 O 3 and optionally recovering gaseous HCl so-produced. These processes can also be used for preparing various other products such as hematite, MgO, silica and oxides of various metals, sulphates and chlorides of various metals, as well as rare earth elements, rare metals and aluminum.

Production of synthetic rutile

The specification describes a process for producing synthetic rutile from a titaniferous ore or concentrate. The process involves three basic steps which are reduction, removal of iron by leaching or aeration and removal of other impurities by leaching in a solution of a strong mineral acid such as hydrochloric acid or sulphuric acid. The conditions of reduction are controlled to promote the formation of metallic iron, a major rutile phase and a minor impurity bearing phase. The minor impurity phase may be a metatitanate, an anosovite or a pseudobrookite. However, formation of a metatinatate is normally preferred. Suitable reductants include carbonaceous materials or hydrogen bearing gases such as natural gas or synthesis gas. The process is capable of removing more than 80% of each of the contained iron magnesium and manganese remaining as oxides after reduction. Substantial proportions of contained aluminium can also be removed.

METHOD FOR EXTRACTION OF METAL IONS FROM RED Sludge BY ULTRASONIC PROCESSING

1. Способ извлечения ионов металлов из красного шлама посредством обработки ультразвуком, включающий стадии:(a) введения в реактор, размещенный в баке с постоянной температурой, (1) нейтрализованной суспензии красного шлама и кислого раствора или (2) суспензии красного шлама, дистиллированной воды и кислого раствора, чтобы сформировать суспензию красного шлама, и нагревание бака с постоянной температурой для того, чтобы позволить суспензии красного шлама в реакторе вступать в реакцию, пока суспензию красного шлама подвергают обработке ультразвуком, тем самым извлекая ионы металлов из красного шлама; и(b) фильтрования продукта, получаемого на стадии (a), чтобы предоставить фильтрат и остаток красного шлама, и разделения и сбора фильтрата и остатка красного шлама,где обработку ультразвуком на стадии (a) осуществляют с использованием ультразвукового генератора посредством подачи ультразвуковых волн на ультразвуковую насадку, размещенную в баке с постоянной температурой, игде нейтрализованную суспензию красного шлама или суспензию красного шлама и кислый раствор смешивают в массовом соотношении от 1:1 до 1:20, и кислый раствор и дистиллированную воду смешивают в объемном соотношении от 1:1 до 1:10.2. Способ по п. 1, где ультразвуковую насадку располагают между дном бака с постоянной температурой и дном реактора.3. Способ по п. 1, где реакцию на стадии (a) осуществляют при температуре 50-100ºC в течение 3 часов или больше.4. Способ по п. 1, где обработку ультразвуком осуществляют при частоте 30-50 кГц и мощности (i) 260-300 Вт или (ii) 300-500 Вт, когда реакцию осуществляют непосредственно в баке с постоянной температурой без отдельного реактора.5. Способ по п. 1, где временем и температурой реакции на РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 104 051 A (51) МПК C22B 3/06 (2006.01) B01J 19/10 (2006.01) C04B 33/138 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015104051, 26.04.2013 (71) Заявитель(и): ЛИ Чи- ...

Method for co-extracting vanadium, titanium and chromium from vanadium slag

本发明提供了一种从钒渣中共提取钒钛铬的方法，该方法通过低温氢还原‑三氯化铁除铁‑低温草酸浸出钒渣的方法，选择性地将包裹在尖晶石外的辉石和铁橄榄石还原，破坏其结构，实现尖晶石相和硅酸盐相的解离，使尖晶石相充分的暴露出来，利用草酸的酸性和强络合性，直接低温浸出钒渣，破坏尖晶石结构，使钒钛铬与草酸根络合进入溶液，实现钒钛铬的共同提取。本发明从钒渣中提取钒、钛、铬，其浸出率均大于99％。

Method for preparing reduced titanium powder by multistage deep reduction

Provided is a method for preparing a reduced titanium powder by a multistage deep reduction, including the following steps of: uniformly mixing a dried titanium dioxide powder with a magnesium powder to obtain a mixture, adding the mixture in a self-propagating reaction furnace, triggering a self-propagating reaction, obtaining an intermediate product of which low-valence titanium oxides TixO are dispersed in an MgO matrix, leaching the intermediate product with a hydrochloric acid as a leaching solution, performing filtering, washing and vacuum drying to obtain a low-valence titanium oxide TixO precursor, uniformly mixing the low-valence titanium oxide TixO precursor with a calcium powder, performing a pressing to obtain semi-finished products, placing the semi-finished products in a vacuum reduction furnace for a second-time deep reduction, and leaching a deep reduction product with a hydrochloric acid as a leaching solution so as to obtain the reduced titanium powder.

PROCESS FOR THE USE OF TITANIFEROUS MINERALS

Production of synthetic rutile.

THE SPECIFICATION DESCRIBES A PROCESS FOR PRODUCING SYNTHETIC RUTILE FROM A TITANIFEROUS ORE OR CONCENTRATE. THE PROCESS INVOLVES THREE BASIC STEPS WHICH ARE REDUCTION OF IRON BY LEACHING OR AERATION AND REMOVAL OF OTHER IMPURITIES BY LEACHING IN A SOLUTION OF A STRONG MINERAL ACID SUCH AS HYDROCHLORIC ACID OR SULPHURIC ACID. THE CONDITIONS OR REDUCTION ARE CONTROLLED TO PROMOTE THE FORMATION OF METALLIC IRON, A MAJOR RUTILE PHASE AND A MINOR IMPURITY BEARING PHASE. THE MINOR IMPURITY PHASE MAY BE A METATITANATE, AN ANOSOVITE OR A PSEUDOBROOKITE. HOWEVER FORMATION OF A METATITANATE IS NORMALLY PREFERRED. SUITABLE REDUCTANTS INCLUDE CARBONACEOUS MATERIALS OR HYDROGEN BEARING GASES SUCH AS NATURAL GAS OR SYNTHESIS GAS. THE PROCESS IS CAPABLE OF REMOVING MORE THAN 80OF EACH CONTAINED IRON MAGNESIUM AND MANGANESE REMAINING AS OXIDES AFTER REDUCTION. SUBSTANTIAL PROPORTIONS OF CONTAINED ALUMINIUM CAN ALSO BE REMOVED.

FOERFARANDE FOER ANRIKNING AV TITANHALTIGT MATERIAL

Methods of extraction of products from titanium-bearing materials

The invention relates to processes for the extraction of products from titanium-bearing materials or a composition produced in a process for the production of titanium dioxide, and more particularly, although not exclusively, extracting titanium dioxide and/or one or more other products from iron making slag.

Processes for treating red mud

There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said solid from said leachate. Several other metals can be extracted from the leachate (Fe, Ni, Co, Mg, rare earth elements, rare metals, etc.). Various other components can be extracted from solid such as TiO 2 , SiO 2 etc.

Method for reducing titanium content in vanadium-titanium magnetite concentrate

本发明提供了一种降低钒钛磁铁精矿中钛含量的方法，包括如下步骤：S1、配制混酸复合浸出剂，S2、将矿物与步骤S1所得混酸复合浸出剂混合，进行选择性浸出反应，S3、对步骤S2所得混合物进行磁选得到钒钛磁铁精矿，将剩余尾矿矿浆进行固液分离，所得滤液返至步骤S2中的混酸复合浸出剂中循环利用；本发明所提供的降低钒钛磁铁精矿中钛含量的方法，通过配制混酸复合浸出剂并将其用于钒钛磁铁精矿的浸出反应中，能够有效实现对钒钛磁铁精矿中的钛、硅、铝等杂质与铁的高效分离，提高高炉利用系数，减少高炉渣的排放量，降低高炉运行成本，减少环境污染。