СПОСОБЫ ОБРАБОТКИ КРАСНОГО ШЛАМА

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 ...

СПОСОБ ПОЛУЧЕНИЯ ДИОКСИДА ТИТАНА

FIELD: sulfate method of production of titanium dioxide from titanium-containing material. SUBSTANCE: proposed method includes leaching-out of titanium-containing materials with sulfuric acid solution for obtaining lye, deposition of ferrous sulfate from lye, extraction of titanyl sulfate from lye by means of solvent, hydrolysis of extracted titanyl sulfate followed by roasting of solid phase obtained at hydrolysis stage. At least part of raffinate from extraction stage is used as part of leaching solution at initial leaching-out stage. EFFECT: high degree of purity of titanium dioxide; reduced amount of acid; reduced power requirements. 20 cl, 2 dwg, 9 tbl, 13 ex ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 315 123 (13) C2 (51) ÌÏÊ C22B 34/12 (2006.01) C22B 3/08 (2006.01) C01G 23/053 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005115122/02, 17.10.2003 (72) Àâòîð(û): ÐÎØÅ Ýðèê Æèðâàí (AU), ÑÒÞÀÐÒ Àëàí Äýâèä (AU), ÃÐÅÉÇÈÐ Ôèëèï Ýðíåñò (AU), ËÞ Õîóþàíü (AU) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 17.10.2003 (73) Ïàòåíòîîáëàäàòåëü(è): Áè Ýé÷ Ïè ÁÈËËÈÒÎÍ ÈÍÍÎÂÅÉØÍ ÏÒÈ ËÒÄ (AU) (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2006 R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 18.10.2002 AU 2002952158 (45) Îïóáëèêîâàíî: 20.01.2008 Áþë. ¹ 2 2 3 1 5 1 2 3 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 6375923 Â, 23.04.2002. RU 2171228 C2, 27.07.2001. US 6048505 A, 11.04.2000. WO 02/48412 A, 20.06.2002. US 5277816 A, 11.01.1994. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 18.05.2005 2 3 1 5 1 2 3 R U (87) Ïóáëèêàöè PCT: WO 2004/035843 (29.04.2004) C 2 C 2 (86) Çà âêà PCT: AU 03/01386 (17.10.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé, ðåã.¹ 513 (54) ÑÏÎÑÎÁ ÏÎËÓ×ÅÍÈß ÄÈÎÊÑÈÄÀ ÒÈÒÀÍÀ (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê ñóëüôàòíîìó ñïîñîáó ïîëó÷åíè äèîêñèäà òèòàíà èç òèòàíñîäåðæàùåãî ...

СПОСОБ ПЕРЕРАБОТКИ ФТОРТИТАНСОДЕРЖАЩИХ РАСТВОРОВ ПОСЛЕ ВСКРЫТИЯ ЛОПАРИТОВОГО И ДРУГИХ ТИТАНСОДЕРЖАЩИХ КОНЦЕНТРАТОВ ДЛЯ ПОЛУЧЕНИЯ ДИОКСИДА ТИТАНА

Изобретение относится к гидрометаллургической переработке рудных концентратов, а именно к переработке лопаритового и других титансодержащих концентратов. Наиболее успешно изобретение может быть использовано для получения диоксида титана различного назначения, в том числе и для нужд лакокрасочной промышленности. Способ включает высокотемпературный пиролиз концентрированного раствора фтортитановой кислоты. Перед пиролизом в раствор вводят металлический алюминий в количестве 0,15-1,5% алюминия по отношению к TiO2 в растворе, пиролиз проводят при 500-700oС, а полученный при этом продукт обрабатывают вначале известковым молоком до рН 6,5-7,0, а затем модифицируют кремнегелем с соотношением с TiO2 в растворе 1:0,01-0,1. Также новым является то, что продукт пиролиза перед обработкой известковым молоком распульповывают в воде при соотношении твердого и жидкого 1:3 и перемешивают в течение 1,5-2,0 ч при 40-50o С. Способ позволяет повысить пигментные характеристики диоксида титана. 2 з.п. ф-лы.

ИСПОЛЬЗОВАНИЕ СПОСОБА ОСАЖДЕНИЯ ТИТАНА

1. Сульфатный способ получения диоксида титана из титаносодержащего материала (такого как ильменит), относящийся к типу, который содержит следующие этапы: ! (а) выполняют выщелачивание твердого титаносодержащего материала выщелачивающим раствором, содержащим серную кислоту, и получают рабочий раствор, который содержит кислый раствор сульфата титанила (TiOSO4) и сульфата железа (FeSO4); ! (b) разделяют упомянутый рабочий раствор и остаточную твердую фазу, полученные на этапе (а) выщелачивания; ! (с) осаждают сульфат титанила из рабочего раствора, полученного на этапе (b); ! (d) отделяют осажденный сульфат титанила от рабочего раствора; ! (е) обрабатывают осажденный сульфат титанила и получают раствор, содержащий сульфат титанила; ! (f) выполняют гидролиз сульфата титанила в растворе и получают твердую фазу, содержащую гидратированные оксиды титана и жидкую фазу; ! (g) разделяют упомянутую твердую фазу, содержащую гидратированные оксиды титана, и жидкую фазу; ! (h) прокаливают твердую фазу, полученную на этапе (g), и получают диоксид титана; и ! (i) удаляют сульфат железа из рабочего раствора, полученного на этапе (b), и/или обедненного рабочего раствора, полученного на этапе (d). ! 2. Способ по п.1, дополнительно включающий этап, на котором подают отделенный рабочий раствор, полученный на этапе (d), и/или отделенную жидкую фазу, полученную на этапе (g), на этап (а) выщелачивания. ! 3. Способ по п.1, в котором этап (с) осаждения сульфата титанила выполняют в непрерывном режиме в одном реакторе или нескольких реакторах, установленных последовательно и/или параллельно. ! 4. Способ по п.1, в котором этап (с) осаждения сульфата титанила выполняют в периодичес� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2007 141 195 (13) A (51) МПК C22B 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2007141195/02, 07.04.2006 (71) Заявитель(и): БиЭйчПи БИЛЛИТОН ИННОВЕЙШН ПТИ ЛТД (AU) (30) Конвенционный ...

УСОВЕРШЕНСТВОВАННЫЙ СПОСОБ ОСАЖДЕНИЯ ТИТАНА

1. Сульфатный способ получения диоксида титана из титаносодержащего материала (такого как ильменит), относящийся к типу, который включает следующие этапы: ! (а) выполняют выщелачивание твердого титаносодержащего материала с использованием выщелачивающего раствора, содержащего серную кислоту, и получают рабочий раствор, который содержит кислый раствор сульфата титанила (TiOSO4) и сульфата железа (FeSO4); ! (b) разделяют упомянутый рабочий раствор и остаточную твердую фазу, полученные на этапе (а) выщелачивания; ! (с) осаждают сульфат титанила из рабочего раствора, полученного на этапе (b); ! (d) отделяют осажденный сульфат титанила от рабочего раствора; ! (е) обрабатывают упомянутый осажденный сульфат титанила и получают раствор, содержащий сульфат титанила; ! (f) выполняют гидролиз сульфата титанила в упомянутом растворе и получают твердую фазу, содержащую гидратированные оксиды титана и жидкую фазу; ! (g) разделяют упомянутую твердую фазу, содержащую гидратированные оксиды титана, и жидкую фазу; ! (h) прокаливают твердую фазу, полученную на этапе (g), и получают диоксид титана; и ! (i) удаляют сульфат железа из рабочего раствора, полученного на этапе (b), и/или обедненного рабочего раствора, полученного на этапе (d). ! 2. Способ по п.1, дополнительно содержащий этап, на котором подают отделенный рабочий раствор, полученный на этапе (d), и/или отделенную жидкую фазу, полученную на этапе (g), на этап (а) выщелачивания. ! 3. Способ по п.1 или 2, включающий регулирование концентрации кислоты в рабочем растворе, содержащем растворенный сульфат титанила, полученный на этапе (а) выщелачивания, таким образом, чтобы эта концентрация составляла, по меньшей � РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2007 141 163 (13) A (51) МПК C22B 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2007141163/02, 07.04.2006 (71) Заявитель(и): БиЭйчПи БИЛЛИТОН ИННОВЕЙШН ПТИ ЛТД (AU) (30) Конвенционный ...

СПОСОБ ПРОИЗВОДСТВА МЕТАЛЛИЧЕСКИХ ПРОДУКТОВ

... 1. Способ промышленной очистки подаваемого потока низкосортного поливалентного катиона с чистотой P1 путем образования осадка двойной соли поливалентного катиона с чистотой P2 и раствора поливалентного катиона с чистотой P3, где P2>P1>P3, причем поливалентный катион выбирают из группы, состоящей из Ti(II), Ti(III), Fe(II), Mn, Zn, Co, Cr, Al, Cd, Tin, Ni, V и Cd, и упомянутый способ включает следующие этапы: ! a) образования из упомянутого потока среды, содержащей воду, упомянутый поливалентный катион, катион, выбираемый из группы, состоящей из аммония, катионов щелочных металлов, протонов и любого их сочетания, и анионы, причем образовавшаяся среда далее характеризуется присутствием (i) осадка двойной соли, содержащего упомянутый поливалентный катион, по меньшей мере один из упомянутых катионов и по меньшей мере один из упомянутых анионов; и (ii) раствор поливалентного катиона; в которой концентрация упомянутых анионов больше 10% и соотношение между концентрациями упомянутого катиона и ...

WIEDERGEWINNUNG VON TITANIUMDIOXID AUS TIO2-REICHEN ROHSTOFFEN WIE SCHLACKEN DER STAHLHERSTELLUNG

TITANIUM DIOXIDE PIGMENT PRODUCTION

... 1371133 Precipitating TiO2 AMERICAN CYANAMID CO 2 March 1972 [1 April 1971] 9856/72 Headings C1N and C1A TiO2 is precipitated from Ti sulphate-Fe sulphate solution using hydrolysis seed prepared from Ti sulphate solution which has been clarified by treatment with activated carbon. The clarified solution may further be used to form a coating on the precipitated TiO2, after washing and calcining, by mixing the solution with a slurry of the TiO2, and adjusting the pH to 5-9 to precipitate hydrous TiO2. The Ti sulphate solution to be clarified may initially be treated with a reducing agent, e.g. Zn. The charcoal may be leached before use with HCl to remove iron. A chelating agent, e.g. ethylenedinitrilotetraacetic acid, may be added with the charcoal. In the coating process, other metal salts may also be used, e.g. chlorides, sulphates, nitrates or acetates of Al, Ce, Be, Zn, Sn or Zr.

Process for the purification of sulphuric acid solutions of titanium sulphate

... 309,834. I. G. Farbenindustrie Akt.- Ges. April 13, 1928, [Convention date]. Void. [Published under Sect. 91 of the Acts]. Filtering-media.-Sulphuric acid solutions of titanium sulphate are purified from particles of unchanged one, carbon, and gangue by filtration through a filter cloth of nitrated cellulose. The solution must be free from trivalent titanium compounds, as the latter attack the filter cloth.

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 ...

METHOD FOR PURIFYING TITANYL HYDRATE

Improvements in or relating to the production of titanium dioxide

Titanium dioxide is obtained by treating an iron- and titanium-containing material with concentrated sulphuric acid, hydrolysing, separating the dioxide from the mother liquor and concentrating the latter to at least 60% H2SO4, separating precipitated salts and dissolving them at elevated temperature in a sulphuric acid-titanium sulphate solution having a H2SO4 concentration not exceeding 30% by wt., cooling and separating precipitated iron sulphate heptahydrate from solution, recycling at least a part of said solution to dissolve more of said salts and/or hydrolysing at least part of the solution to form titanium dioxide. The whole of the solution remaining after separation of the heptahydrate may be recycled until its titanium content is from 50 to 200 g./l. expressed as TiO2. The ratio of Fe : TiO2 in the solution remaining after separation of the heptahydrate may be from 0.25 : 1 to 1 : 1, and the ratio of H2SO4: TiO2 in the salts precipitated from the mother liquor should be less than ...

Process for rendering suitable for re-use sulphuric acid used for treatment of ores of titanium containing chromium

... 309,597. Deutsche Gasgl³hlicht Auer- Ges. April 14, 1928, [Convention date]. Sulphuric acid.-In the treatment of titanium ores containing chromium with sulphuric acid with recovery of the latter for re-use, the chromium is removed from the recovered acid by concentration thereof to at least 92 per cent strength, followed by prolonged heating at or above 300‹ C.

Improvements in or relating to filtration

A process for the recovery of titanium values from effluents containing the same comprises passing the effluent through a filter bed of insoluble titanium-containing material. The filter bed is composed of graded sand, the coarsest layer lying at the bottom and successive layers above become progressively finer while the uppermost layer consists of an insoluble titanium-containing material such as powdered rutile. The effluent is admitted to the top of the filter bed and at the end of a filtration cycle the deposit is removed together with some of the rutile for subsequent manufacture of titanium compounds. It is desirable to replenish the uppermost layer with powdered rutile from time to time. Means may be provided for back washing the filter bed with water, and the effluent may be treated with alkaline solutions prior to filtration to precipitate soluble titanium compounds.

Titanium intermediate processing

Production of Titania.

Titanium intermediate processing

Production of Titania.

Production of Titania.

Titanium intermediate processing

VERFAHREN ZUR EXTRAKTION DES BEI DER AUFSCHLUSS- BEHANDLUNG EINES TITAN ENTHALTENDEN MINERALS MIT SCHWEFELSAEURE ANFALLENDEN RUECKSTANDES

PROCEDURE FOR THE EXTRACTION OF WITH OF THE EXPLANATION TREATMENT A TITANIUM OF A CONTAINING MINERAL WITH SULFURIC ACID OF RESULTING ARREARS

Purification of TiCl4 through the production of new co-products

The present disclosure relates to reacting tin metal with crude TiCl ...

Purification of TiCl4 through the production of new co-products

The present disclosure relates to reacting tin metal with crude TiCl ...

PROCESSES FOR TREATING IRON-CONTAINING WASTE STREAMS

REMOVING HEAVY METALS FROM AN ACID WASTE LIQUID

Extraction of acids and metal salts from aqueous solutions with diethyl dodecylphosphonate

FILTRATION OF SOLID-CONTAINING TITANYL SULFATE SOLUTIONS

In the production of a solid-free solution of titanyl sulfate by digesting ilmenite or titanium slag with sulfuric acid, and filtering the resulting solid-containing solution of titanyl sulfate to separate the solids, the improvement which comprises filtering the solution under a pressure of from 1 to 16 bars to form a filter cake of a thickness of from 10 to 35 mm. The filter cake is washed with from 0.1 to 0.5 m3 of water per m3 of filtrate, the wash water is passed through the filter cake at a flow rate of from 0.1 to 1.2 m/h under a pressure of from 1 to 16 bars, and the filter cake is then squeezed to a solid content of from 50 to 70% by weight.

PROCESS FOR TREATING AN ACID WASTE LIQUID

PROCESS FOR THE RECOVERY OF TITANIUM DIOXIDE AND VALUE METALS BY REDUCING THE CONCENTRATION OF HYDROCHLORIC ACID IN LEACH SOLUTION AND SYSTEM FOR SAME

The present invention describes a process and system for recovering titanium dioxide and other value metals from a titanium bearing solid. The process comprises (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. In a preferred embodiment, HCl is recovered with a matrix solution.

Procédé pour la récupération du titane sous forme de son sulfate soluble.

Electrochemical reactor intended to be incorporated into a plant for the production of titanium dioxide from ilmenite by the sulphate process

The electrochemical reactor is made up of a plurality of unit cells (8) mounted in series. Each of the cells (8) comprises a cylindrical insulating casing (10) divided by a microporous insulating diaphragm (11) into two coaxial compartments (12, 13), namely a central anode compartment (12) of cylindrical shape, through which passes a metal bar (14) intended to act as anode, and a peripheral cathode compartment (13) of annular shape, filled with a loosely packed bed of conductive particles (16), intended to act as cathode (15). With the anode (14) and the cathode (15) being connected to the two poles of a source of direct voltage (22), a solution of sulphuric acid is circulated through the anode compartment (12) and the ilmenite digestion liquor is circulated through the loosely packed bed in the cathode compartment (13), respectively, and this results in the reduction of the ferric iron present in this liquor. It can be incorporated into a plant for the production of titanium dioxide from ...

PROCEDURE FOR THE PROCESSING OF DILUTING SULFURIC ACID RST AND USE OF THE REGENERATED SULFURIC ACID RST.

METHOD OF OBTAINING THE TITAN

OBTAINING THE DIOXIDE OF THE TITAN

PRODUCT EXTRACTION FROM TITANIUM-CONTAINING MINERALS

СПОСОБ ПОЛУЧЕНИЯ ТИТАНА

Способ получения металлического титана из титансодержащего материала включает стадии получения раствора MIITiF6 из титансодержащего материала, селективное осаждение MI2TiF6 из раствора путем добавления (MI)aXb и применения селективно осажденного MI2TiF6 для получения титана. MII обозначает катион такого типа, который образует гексафтортитанат, М выбран из катионов аммония и щелочных металлов, X обозначает анион, выбранный из галогена, сульфата, нитрита, ацетата и нитрата, и "а" и "b" равны 1 или 2.

METHOD OF OBTAINING TRIFLUORIDE OF THE TITAN

СПОСОБ ПОЛУЧЕНИЯ ТРИФТОРИСТОГО ТИТАНА

Способ получения трифтористого титана из материала, содержащего титан, включает стадии получения фтористого раствора Ti (IV) из материала, содержащего титан, и восстановление Ti (IV) в растворе переходным металлом или сплавом переходного металла. Переходный металл выбран из марганца, железа, кобальта, никеля и цинка, при этом соль, содержащую аммоний, и аммиак или фторид аммония, добавляют в полученный раствор, содержащий Ti (III), для получения осадка, после чего данный осадок пиролизуют для получения трифтористого титана.

UPGRADING OF TITANIFEROUS MATERIAL

СПОСІБ ВИРОБНИЦТВА ДІОКСИДУ ТИТАНУ

Показано сульфатний спосіб виробництва діоксиду титану з титановмісного матеріалу. Спосіб включає етап вилуговування титановмісного матеріалу з формуванням лугу, відділення сульфату титанілу від лугу, гідроліз екстрагованого сульфату титанілу, з наступним кальцинуванням твердої фази, виробленої на етапі гідролізу. Процес відрізняється багатостадійним вилуговуванням титановмісного матеріалу.

Processes for producing titanium dioxide

Provided are processes for the production of titanium dioxide from ilmenite. In these processes, ilmenite is digested with aqueous ammonium 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.

Process of preapration of titanium dioxide

Process for the oxidation of composed of trivalent titanium contained in solid titaniferous substances

Proceeded for the clarification of acid solutions of attack containing of titanium sulphate

PROCESS Of EXTRACTION Of ELEMENTS WHICH MAY UNDERGO BENEFICIATION CONTAINED IN a RESIDUE CONTAINING OF TITANIUM TO the SULPHATE STATE

Manufacture of a titanium dioxide hydrate

PROCEDE DE RECUPERATION DE TITANE

LA PRESENTE INVENTION EST RELATIVE A UN PROCEDE DE PRODUCTION DE TITANE A PARTIR D'UNE SOURCE CONTENANT DU TITANE, CONSISTANT A: A.BROYER LA SOURCE CONTENANT DU TITANE; B.SOUMETTRE LA SOURCE BROYEE A UN GRILLAGE REDUCTEUR A TEMPERATURE ELEVEE DANS UN MILIEU REDUCTEUR; C.LIXIVIER LA SOURCE REDUITE A L'AIDE D'UNE SOLUTION DE LIXIVIATION CONTENANT UN COMPOSE CONTENANT UN HALOGENE; D.SEPARER LES MATERIAUX INSOLUBLES DE LA LIQUEUR DE LIXIVIATION RICHE CONTENANT DES HALOGENURES DE TITANE; E.TRAITER LA LIQUEUR DE LIXIVIATION POUR PRECIPITER LE BIOXYDE DE TITANE; ET F.RECUPERER LE BIOXYDE DE TITANE;CARACTERISE EN CE QU'IL CONSISTE A TRAITER LA LIQUEUR DE LIXIVIATION AVEC UN EXCES D'OXYDE FERRIQUE TOUT EN MAINTENANT LA SOLUTION SOUS AGITATION, A RECUPERER LES MATERIAUX SOLIDES FORMES PAR LE TRAITEMENT A L'OXYDE FERRIQUE, DE L'HALOGENURE DE TITANE ET A MELANGER CES MATERIAUX SOLIDES AVEC UNE SECONDE SOLUTION DE LIXIVIATION AFIN DE CONSOMMER L'OXYDE FERRIQUE RESTANT ET A RECUPERER LE BIOXYDE DE TITANE ...

POUR LA PRODUCTION DE BIOXYDE DE TITANE PAR VOIE SULFATE A PARTIR DE L' REACTEUR ELECTROCHIMIQUE DESTINE A ETRE INCORPORE DANS UNE INSTALLATIONILMENITE

La présente invention a pour objet un réacteur électrochimique destiné à permettre la réduction du fer ferrique contenu dans la liqueur d'attaque de l'ilménite. Le réacteur selon l'invention comprend au moins un compartiment cathodique 13 muni d'une cathode constituée par un lit non tassé de particules conductrices, ledit lit étant destiné à être traversé par la liqueur d'attaque; au moins un compartiment anodique 12 destiné à contenir une solution à base d'acide sulfurique, muni d'une anode massive; et un diaphragme isolant et microporeux 11 séparant lesdits compartiments cathodique et anodique 13 et 12. Ce réacteur est destiné à être incorporé dans une installation pour la production de bioxyde de titane par voie sulfate à partir de l'ilménite.

PROCEDE ET PURIFICATION DE L'HYDRATE DE TITANYLE

L'INVENTION CONCERNE LA PURIFICATION DE L'HYDRATE DE TITANYLE. SELON LE PROCEDE DE L'INVENTION, L'HYDRATE DE TITANYLE EST SEPARE DE LA SUSPENSION, LAVE ET REMIS EN SUSPENSION AVEC DE L'EAU POUR FLUIDIFIER LA SUSPENSION D'HYDRATE DE TITANYLE RESULTANTE. LA BOUILLIE D'HYDRATE DE TITANYLE REMISE EN SUSPENSION EST ENSUITE TRAITEE PAR ADDITION D'UN COMPOSE DE TITANE TRIVALENT EN UNE QUANTITE COMPRISE ENTRE ENVIRON 0,01G ET ENVIRON 0,7G DE COMPOSE DE TITANE TRIVALENT MESURE EN TIO POUR 100G D'HYDRATE DE TITANYLE EXPRIME EN TIO CALCINE EN L'ABSENCE DE QUANTITES D'ACIDE SUPPLEMENTAIRES. L'HYDRATE DE TITANYLE EST ENSUITE SEPARE DE LA SUSPENSION TRAITEE, LAVE ET RECUPERE.

IMPROVEMENT WITH THE CLARIFICATION OF AQUEOUS SUSPENSIONS

MANUFACTORING PROCESS OF COMPOSE OF TITANIUM BY MEANS OF A REDUCER

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.

Process for [...] of at least one acid or metal salt from an aqueous solution thereof

DISPERSOES LIQUIDAS ESTAVEIS DE BASES DE MANNICH POLIMERICAS E SUA UTILIZACAO

A METHOD OF PRODUCING TITANIUM POWDER

Use of diethyl dodecylphosphonate for extracting acid and metal salts from aqueous solutions

PROCESS FOR REMOVING INORGANIC GELS AND INCOMPRESSIBLE SOLIDS FROM ACIDIC MEDIA

Process for removing inorganic gels and dispersed, particulate incompressible solids from an aqueous slurry having a pH of about -2 to +3 and a soluble metallic chloride content of about 3 to 50 percent by weight, based on the total weight of the slurry, comprising: (a) rapidly and intimately contacting the slurry with an effective amount of a cationic Mannich polyacrylamide having an average molecular weight of about 4-15 million until the desired amount of gel and particulate solids are flocculated, (b) slowly and gently mixing the product of step (a) until floc of the desired size is formed, and (c) removing the floc from the product of step (a).

PRODUCTION OF TITANYL SULFATE SOLUTIONS

Process for treating an acid waste liquid

A process for treating an acid waste liquid containing Fe ions which has been used for acid washing of metallic materials or articles, comprising the first stage where an organic solvent (A) is added to the acid waste liquid to extract Fe ions, the second stage where an acid is added to the resulting acid waste liquid to convert chemical species of remaining metal salts and increase the hydrogen ion concentration followed by addition of an organic solvent (B) to recover the mineral acid of concern by extraction, the third stage where an organic solvent (C) is added to the resulting acid waste liquid to extract and recover other required mineral acids, and regenerating each of the organic solvents (A), (B) and (C) in respective stages.

METHOD FOR CLARIFYING TITANIUM SULPHATE SOLUTIONS

PROCESSES FOR PREPARING TITANIUM OXIDE AND VARIOUS OTHER PRODUCTS

There are provided processes for preparing various products from various materials. For example, such processes are effective for extracting titanium and various other metals from various materials, thereby allowing for preparing products such as titanium chloride and titanium oxide. These processes can comprise leaching the starting material with HCl so as to obtain a leachate and a solid. The solid can be treated so as to substantially selectively extract titanium therefrom while the leachate can be treated so as to substantially selectively recover a first metal chloride therefrom.

PROCESSING OF WASTE OR CYCLONE SOLIDS FROM THE CHLORINATION OF TITANIUM BEARING ORES

A SULFATE PROCESS

PROCESS FOR THE PRODUCTION OF GROUP IVB TRANSITION METAL-ALKALI METAL-FLUORIDE SALTS AND PURIFICATION THEREOF

Group IVb transition metal oxide ores are fluorinated with an alkali metal fluosilicate in fluorination zone (10). The fluorinated ore (16) is leached with hydrochloric acid in leach zone (18). The group IVb transition metal - alkali metal fluoride - containing solution (20) is then cooled in a crystallization zone (22). Silicon tetrafluoride (30) produced in the fluorination zone (10) is scrubbed with water in the fluosilicic acid production zone (32) and the fluosilicic acid (34) is then reacted with alkali metal chloride (38) to form alkali metal fluosilicate, which is used in fluorination zone (10) and, hydrochloric acid which is used in leach zone (18).

ПОЛУЧЕНИЕ ДИОКСИДА ТИТАНА

Изобретение относится к сульфатному способу получения диоксида титана из титансодержащего материала. Способ включает выщелачивание титансодержащего материала раствором серной кислоты и получение щелока от выщелачивания, содержащего титанилсульфат, отделение титанилсульфата от щелока от выщелачивания, гидролиз титанилсульфата с образованием твердой фазы, содержащей гидратированные оксиды титана, и последующий обжиг твердой фазы, полученной на стадии гидролиза. При этом способ включает дополнительную стадию выщелачивания оставшейся после отделения твердой фазы со стадии выщелачивания исходного титансодержащего материала раствором, содержащим серную кислоту. Техническим результатом является повышение эффективности процесса получения диоксида титана. 23 з.п. ф-лы, 2 ил., 9 табл.

СПОСОБ ПОЛУЧЕНИЯ ДИОКСИДА ТИТАНА

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2005 115 122 (13) A (51) ÌÏÊ C25C 3/08 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005115122/02, 17.10.2003 (71) Çà âèòåëü(è): Áè Ýé÷ Ïè ÁÈËËÈÒÎÍ ÈÍÍÎÂÅÉØÍ ÏÒÈ ËÒÄ. (AU) (30) Ïðèîðèòåò: 18.10.2002 AU 2002952158 (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2006 Áþë. ¹ 02 (86) Çà âêà PCT: AU 03/01386 (17.10.2003) (87) Ïóáëèêàöè PCT: WO 2004/035843 (29.04.2004) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U Ôîðìóëà èçîáðåòåíè 1. Ñóëüôàòíûé ñïîñîá ïîëó÷åíè äèîêñèäà òèòàíà èç òèòàíñîäåðæàùåãî ìàòåðèàëà, âêëþ÷àþùèé ñòàäèè (à) âûùåëà÷èâàíè òâåðäîãî òèòàíñîäåðæàùåãî ìàòåðèàëà âûùåëà÷èâàþùèì ðàñòâîðîì, ñîäåðæàùèì ñåðíóþ êèñëîòó, è îáðàçîâàíè ùåëîêà îò âûùåëà÷èâàíè , êîòîðûé âêëþ÷àåò êèñëûé ðàñòâîð òèòàíèëñóëüôàòà (TiOSO4) è ñóëüôàòà æåëåçà (FeSO4); (b) ðàçäåëåíè ùåëîêà îò âûùåëà÷èâàíè è îñòàâøåéñ òâåðäîé ôàçû ñî ñòàäèè (à); (ñ) îñàæäåíè ñóëüôàòà æåëåçà èç ùåëîêà îò âûùåëà÷èâàíè ñî ñòàäèè (b) è îòäåëåíè îñàæäåííîãî ñóëüôàòà æåëåçà îò ùåëîêà îò âûùåëà÷èâàíè ; (d) ýêñòðàêöèè òèòàíèëñóëüôàòà èç ùåëîêà îò âûùåëà÷èâàíè ñî ñòàäèè (ñ) ïîäõîä ùèì ðàñòâîðèòåëåì è ïîñëåäóþùåé äåñîðáöèè òèòàíèëñóëüôàòà èç ðàñòâîðèòåë è îáðàçîâàíè ðàñòâîðà, ñîäåðæàùåãî òèòàíèëñóëüôàò; (å) èñïîëüçîâàíè , ïî ìåíüøåé ìåðå, ÷àñòè ðàôèíàòà ñî ñòàäèè (d) ýêñòðàêöèè ðàñòâîðèòåëåì â êà÷åñòâå, ïî ìåíüøåé ìåðå, ÷àñòè âûùåëà÷èâàþùåãî ðàñòâîðà íà ñòàäèè (à) âûùåëà÷èâàíè ; (f) ãèäðîëèçà ðàñòâîðà, ñîäåðæàùåãî òèòàíèëñóëüôàò, è îáðàçîâàíè ãèäðàòèðîâàííûõ îêñèäîâ òèòàíà èç òèòàíèëñóëüôàòà; (g) ðàçäåëåíè òâåðäîé ôàçû, ñîäåðæàùåé ãèäðàòèðîâàííûå îêñèäû òèòàíà, è æèäêîé ôàçû, ïîëó÷åííûõ íà ñòàäèè (f) ãèäðîëèçà; è (h) îáæèãà òâåðäîé ôàçû ñî ñòàäèè (g) è îáðàçîâàíè äèîêñèäà òèòàíà. 2. Ñïîñîá ïî ï.1, äîïîëíèòåëüíî âêëþ÷àþùèé äîïîëíèòåëüíóþ ñòàäèþ âûùåëà÷èâàíè îñòàâøåéñ òâåðäîé ôàçû ñî ñòàäèè (b) âûùåëà÷èâàþùèì ðàñòâîðîì, ...

ПОЛУЧЕНИЕ ДИОКСИДА ТИТАНА

... 1. Сульфатный способ получения диоксида титана из титансодержащего материала, включающий в себя стадии: (а) выщелачивания твердого титансодержащего материала выщелачивающим раствором, содержащим серную кислоту, и образования щелока от выщелачивания, который включает в себя кислый раствор титанилсульфата (TiOSO4) и сульфата железа (FeSO4); (b) разделения щелока от выщелачивания и оставшейся твердой фазы со стадии (а) выщелачивания; (с) отделения титанилсульфата от щелока от выщелачивания со стадии (b); (d) гидролиза отделенного титанилсульфата и образования из титанилсульфата гидратированных оксидов титана с выбранным распределением частиц по размерам; (е) разделения твердой фазы, содержащей гидратированные оксиды титана, и жидкой фазы, полученных на стадии (d) гидролиза; и (f) обжига твердой фазы со стадии (е) и образования диоксида титана. 2. Способ по п.1, который включает в себя регулирование стадии (d) гидролиза для получения продукта гидратированных оксидов титана с выбранным распределением ...

ПОЛУЧЕНИЕ ДИОКСИДА ТИТАНА

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2005 115 123 (13) A (51) ÌÏÊ C22B 3/08 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005115123/02, 17.10.2003 (71) Çà âèòåëü(è): Áè Ýé÷ Ïè ÁÈËËÈÒÎÍ ÈÍÍÎÂÅÉØÍ ÏÒÈ ËÒÄ (AU) (30) Ïðèîðèòåò: 18.10.2002 AU 2002952157 (43) Äàòà ïóáëèêàöèè çà âêè: 10.02.2006 Áþë. ¹ 4 (86) Çà âêà PCT: AU 03/01384 (17.10.2003) (87) Ïóáëèêàöè PCT: WO 2004/035841 (29.04.2004) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U Ôîðìóëà èçîáðåòåíè 1. Ñóëüôàòíûé ñïîñîá ïîëó÷åíè äèîêñèäà òèòàíà èç òèòàíñîäåðæàùåãî ìàòåðèàëà, âêëþ÷àþùèé â ñåá ñòàäèè (à) âûùåëà÷èâàíè òâåðäîãî òèòàíñîäåðæàùåãî ìàòåðèàëà âûùåëà÷èâàþùèì ðàñòâîðîì, ñîäåðæàùèì ñåðíóþ êèñëîòó, è îáðàçîâàíè ùåëîêà îò âûùåëà÷èâàíè , êîòîðûé âêëþ÷àåò â ñåá êèñëûé ðàñòâîð òèòàíèëñóëüôàòà (TiOSO4) è ñóëüôàòà æåëåçà (FeSO4); (b) ðàçäåëåíè ùåëîêà îò âûùåëà÷èâàíè è îñòàâøåéñ òâåðäîé ôàçû ñî ñòàäèè (à) âûùåëà÷èâàíè ; (ñ) îòäåëåíè òèòàíèëñóëüôàòà îò ùåëîêà îò âûùåëà÷èâàíè ñî ñòàäèè (b); (d) ãèäðîëèçà îòäåëåííîãî òèòàíèëñóëüôàòà è îáðàçîâàíè òâåðäîé ôàçû, ñîäåðæàùåé ãèäðàòèðîâàííûå îêñèäû òèòàíà; (å) ðàçäåëåíè òâåðäîé ôàçû, ñîäåðæàùåé ãèäðàòèðîâàííûå îêñèäû òèòàíà, è æèäêîé ôàçû, êîòîðûå ïîëó÷åíû íà ñòàäèè (d) ãèäðîëèçà; è (f) îáæèãà òâåðäîé ôàçû ñî ñòàäèè (å) è îáðàçîâàíè äèîêñèäà òèòàíà; è îòëè÷àþùèéñ ñòàäè ìè: (i) äîïîëíèòåëüíîé ñòàäèåé âûùåëà÷èâàíè îñòàâøåéñ òâåðäîé ôàçû ñî ñòàäèè (b) âûùåëà÷èâàþùèì ðàñòâîðîì, ñîäåðæàùèì ñåðíóþ êèñëîòó, è îáðàçîâàíè ùåëîêà îò âûùåëà÷èâàíè , êîòîðûé âêëþ÷àåò â ñåá êèñëûé ðàñòâîð òèòàíèëñóëüôàòà è ñóëüôàòà æåëåçà, è îñòàâøåéñ òâåðäîé ôàçû; (ii) ðàçäåëåíè ùåëîêà îò âûùåëà÷èâàíè è îñòàâøåéñ òâåðäîé ôàçû ñî ñòàäèè (i); è (iii) ïîäà÷è îòäåëåííîãî ùåëîêà îò âûùåëà÷èâàíè íà ñòàäèþ (à) âûùåëà÷èâàíè è/èëè Ñòðàíèöà: 1 RU A 2 0 0 5 1 1 5 1 2 3 A (54) ÏÎËÓ×ÅÍÈÅ ÄÈÎÊÑÈÄÀ ÒÈÒÀÍÀ 2 0 0 5 1 1 5 1 2 3 (74) Ïàòåíòíûé ...

Verfahren zur Herstellung von im wesentlichen eisenfreier, schnell filtrierender Orthotitansaeure

VERFAHREN ZUR HERSTELLUNG VON TITANDIOXID

PRODUCTION OF TITANIUM DIOXIDE

PROCESS FOR THE REMOVAL OF DISSOLVED TITANIFEROUS SOLUTION

... 1294703 Leaching titaniferous materials; titanium phosphate BRITISH TITAN Ltd 5 May 1971 [16 May 1970] 23851/70 Headings C1A and C1N An iron-containing titaniferous material is leached with aqueous HCl to form a TiO 2 concentrate and a solution containing dissolved Fe and some Ti; H 3 PO 4 or a phosphate is added to the separated solution to precipitate Ti phosphate; and HCl and Fe oxide or Fe are recovered from the solution. The initial material may be ilmenite or leucoxene having a particle size of 50-200 Á and may be subjected to a preliminary oxidation and reduction (e.g. in H 2 +2% steam). The leach may be effected at 80‹ C. to the b.pt. using 18-22% acid, while agitating with N 2 . A 2-stage leach may be used, as described in Specification 1,282,506. The PO 4 is preferably provided as H 3 PO 4 or NH 4 phosphate, using 30-200% of the stoichiometric amount required to remove Ti as Ti 3 (PO 4 ) 4 , and the solution may be heated before or after PO 4 addition. An oxidizing agent may also ...

Process in the reduction of solutions containing titanium, iron and eventually other compounds

... 279,786. Titan Co. Aktieselskabet. Oct. 28, 1926, [Convention date]. Titanium sulphate and salts in general.-The reduction of solutions containing titiauium and iron, for instance those obtained by treating ilmenite with sulphuric acid, with materials principally consisting of metallic iron, is carried out with solutions whose titanium content corresponds to 90-130 grms. TiO2 per litre, and at temperatures below 60‹ C., the temperature being, if desired, allowed to rise above 60‹ C. towards the end of the reduction. The calculated amount of reducing agent may be used, particularly when a material of large surface such as spongy iron is employed; or excess of reducing agent may be used, the process then being interrupted when the desired degree of reduction has been effected.

PROCESS FOR THE RECOVERY OF METALS FROM SOLUTION

... 1520175 Metal recovery INCO Ltd 29 March 1976 [2 April 1975] (2) 12597/76 Heading C1A A process for recovering one or more of Fe, Co, Ni, Cu, Mn, Mg, Cr, Al, Be, Cd, In, Ti and Zn values from a sulphate solution thereof by precipitation as a basic compound comprises treating the solution with lime or limestone with low energy agitation at a temperature, T, of at least 60‹ C. for t minutes where t is #15 when T#90‹ C. and t #15 + 3/2 (90 - T) when 60‹ C.#T#90‹ C., to form the basic metal compound particles which are much smaller than the gypsum particles also formed, and separating them from the gypsum. A sulphate solution obtained by leaching a lateritic ore containing iron, nickel and cobalt, and magnesium may be firstly treated with magnesium hydroxide to precipitate the metals as hydroxides, separate them from the solution and treat the resultant solution with lime according to the invention to form a fine precipitate of Mg(OH) 2 and a coarse precipitate of gypsum, which may be heat ...

FLOCCULATION OF SOLIDS FROM AQUEOUS SUSPENSIONS

RECUPERATION OF TITANIUM FROM TITANHALTIGEN MATERIALS

PRODUCTION OF TITANIUM DIOXIDE

PRODUCTION OF TITANIUM OXIDE

PROCEDURE FOR THE PRODUCTION OF TITANIUM

Procedure for the production of connections of the tetravalent titanium.

RECOVERY OF TITANIUMDIOXID FROM TIO2 REALMS RAW MATERIALS SUCH AS CINDERS OF THE STEELMAKING

Process for the recovery of titanium dioxide from titanium-containing compositions

Process for the recovery of titanium dioxide from titanium-containing compositions

Processes for treating iron-containing waste streams

PROCESS FOR THE PRODUCTION OF GROUP IVB TRANSITION METAL-ALKALI METAL-FLUORIDE SALTS AND PURIFICATION THEREOF

A method of producing titanium

STABILIZED MANNICH-BASE SUBSTITUTED WATER-IN-OIL POLYMER DISPERSIONS

Improved stable liquid cationic polymer dispersions are disclosed for use as flocculation, sedimentation, retention and dehydration agents. Polymeric Mannich base is dispersed in a mixture of water and a water-insoluble liquid, the Mannich base being for example an acrylamide polymer carrying radicals of reaction with formaldehyde and certain amines. The improvement is the addition to the dispersions of water-soluble salts of amines which may be used together with free amine or ammonia, ammonium salts together with ammonia, or carboxylic acid amides as stabilizers.

PROCESS FOR THE SEPARATION OF RECUPERABLE VALUES IN TITANIUM RESIDUES IN SULPHATE FORM

THE PRODUCTION OF TITANIUM TRIFLUORIDE

A method for the production of titanium trifluoride from a titanium-containing material, includes the steps of pro-ducing a fluoride solution of Ti(IV) from the titanium-containing material and reducing the Ti(IV) in the solution with a transition metal or an alloy of the transition metal. The transition metal is selected from manganese, iron, cobalt, nickel and zinc. An ammo-nium containing salt and either ammonia or ammonium fluoride are added to the resulting solution containing Ti(III) to produce a precipitate, and the precipitate is pyrolysed to produce titanium trifluoride.

ENRICHED TITANIUM HYDROCHLORIC ACID EXTRACT RESIDUE, USE THEREOF AND PREPARATION METHOD OF TITANIUM PIGMENT

Enriched titanium hydrochloric acid extract residue is provided, for use as the feed stock in the preparation of titanium pigment by sulfuric acid process. The present invention belongs to the field of the preparation of titanium pigment and particularly, relates to the enriched titanium hydrochloric acid extract residue prepared from ilmenite by hydrochloric acid leaching, its use and the method of preparing titanium pigment. The method for preparing titanium pigment using the enriched titanium hydrochloric acid extract residue can effectively utilize the fine ilmenite in Panxi area (the utilization rate is almost 100%), obtain the titanium sulfate solution with an ultralow ratio of iron to titanium dioxide (Fe/TiO2) and double the throughput of digesting equipment. Said method can simultaneously spare two steps of iron removal by freezing and titanium sulfate solution concentration with much energy consumption, reduce the times of washing with metatitanic acid, thereby, both of the discharge ...

A METHOD OF PRODUCING TITANIUM

A method of producing titanium metal from a titanium-containing material includes the steps of producing a solution of M"TiF6 from the titanium-containing material, selectively precipitating M'2TiF6 from the solution by the addition of (M')aXb and using the selectively precipitated M'2TiF6 to produce titanium. M" is a cation of the type which forms a hexafluorotitanate, M' is selected from ammonium and the alkali metal cations, X is an anion selected from halide, sulphate, nitrite, acetate and nitrate and a and b are 1 or 2.

PROCESSES FOR TREATING RED MUD

There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCI 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 TiO2, SiO2 etc.

PROCESS FOR INCREASING THE YIELD IN THE MANUFACTURE OF TITANIUM DIXOIDE BY THE CHLORIDE PROCESS

An improvement to the chloride process of making titanium dioxide. By recycling some of the cyclone dust, the yield in the chlorination of titanium-containing raw materials can be increased. In order to prevent silica accumulation in the fluidized bed, the cyclone dust is divided into two fractions. An economic solution is described of a single-stage separation of the cyclone dust in a hydrocyclone, the majority of the titanium dioxide occurring in the hydrocyclone underflow, although the separation is not sharp. By grinding the dried solids from the hydrocyclone underflow, the titanium dioxide particles returned to the lower region of the fluidized-bed reactor are rapidly chlorinated, while the quartz and coke particles are rapidly discharged again from the fluid bed, so that no silica contamination occurs.

METHODS FOR SEPARATION OF TITANIUM FROM ORE

A method for the production of titanium metal from titanium-bearing ore. The method comprises leaching said ore or a concentrate thereof with an aqueous solution of a hydrogen halide; separating solids from the leach solution, to provide a leachate solution. The leachate solution may be subjected to extraction with an immiscible organic phase to selectively remove iron values to provide high purity iron products. Titanium may be separated from raffinate as TiO2 or solvent extract and thermal stripping. TiO2 may also be separated in the initial leach solution. Preferably, the titanium halide is titanium tetrachloride.

СПОСОБ ПОЛУЧЕНИЯ ТИТАНА

Изобретение относится к способу получения порошка металлического титана, включающему стадию восстановления TiF3 алюминием с получением продукта восстановления, содержащего порошок металлического титана и AlF3. Дезактивированный порошок титана содержит поверхностный слой AlF3, содержание AlF3 в котором составляет от 0,005 до 10% от массы материала.

THE PREPARATORY CUT OF THE TITAN

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.

PURIFICATION OF TiCl4 THROUGH THE PRODUCTION OF NEW CO-PRODUCTS

The present disclosure relates to reacting tin metal with crude TiCl 4 containing arsenic to produce pure TiCl 4 , SnCl 4 , and an arsenic solid co-product. In some embodiments, the contaminant vanadium is removed as well. The reaction is preferably done in a continuous fashion in two stages for maximum through-put and utility at an elevated temperature. Distillation can be used to purify the TiCl 4 produced and simultaneously yield a purified SnCl 4 product. The synthesis of SnCl 4 in this method utilizes waste chloride to save virgin chlorine which would otherwise be used.

PURIFICATION OF TiCl4 THROUGH THE PRODUCTION OF NEW CO-PRODUCTS

The present disclosure relates to reacting tin metal with crude TiCl 4 containing arsenic to produce pure TiCl 4 , SnCl 4 , and an arsenic solid co-product. In some embodiments, the contaminant vanadium is removed as well. In another embodiment, the vanadium is removed separately through a commercial process and the resulting arsenic containing commercial grade of purified TiCl 4 is reacted with elemental tin, sulfur and ferric chloride to substantially reduce the arsenic. The reaction is preferably done in a continuous fashion in two stages for maximum through-put and utility at an elevated temperature. Distillation can be used to purify the TiCl 4 produced and simultaneously yield a purified SnCl 4 product. The synthesis of SnCl 4 in this method utilizes waste chloride to save virgin chlorine which would otherwise be used.

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.

METHOD FOR PROCESSING TITANIUM EXTRACTION SLAG AND CARBON EXTRACTED AND DECHLORINATED TAILING

Provided are a method for processing titanium extraction slag and a carbon extraction and dechlorination tailing. The method comprises the following steps that a titanium extraction slag raw material is ground to obtain a treated material with a particle size being 0.3˜120 μm and d≤90 μm; a first solvent and a treated material are mixed with a liquid-solid ratio of (3.5˜4.5): 1 L/kg, and a first capturing agent and a first foaming agent are added for mixing and then subjected to a primary flotation to obtain a floating product and a sinking product; and a second solvent is added into the floating product to adjust the liquid-solid ratio to (4˜5): 1 L/kg, a second capturing agent and a second foaming agent are added for mixing and then subjected to a secondary flotation to obtain a foam product; the foam product is filtered and dried to obtain a refined carbon, and the sinking product is filtered and dried to obtain the carbon extraction and dechlorination tailing, wherein the d≤90 μm means that more than 90% of the powder in the treated material has a particle size of less than 90 μm. The method has the advantages that carbon in the titanium-extracted slag can be recycled, chlorine is removed, and the carbon extraction and dechlorination tailing can be used as a building material raw material. 1. A method for processing titanium extraction slag , wherein the method comprising a carbon extraction and dechlorination process , wherein the carbon extraction and dechlorination process comprising following steps:{'sub': '90', 'grinding the titanium extraction slag raw material to obtain a treated material with a particle size of 0.3˜120 μm and d≤90 μm;'}mixing a first solvent and the treatment material with a liquid-to-solid ratio of 3.5˜4.5:1 L/ kg, additionally adding a first capturing agent and a first foaming agent to mix, and then performing a primary flotation to obtain a floating product and a sinking product;adding a second solvent to the floating product to ...

PROCESSES FOR PREPARING TITANIUM OXIDE AND VARIOUS OTHER PRODUCTS

There are provided processes for preparing various products from various materials. For example, such processes are effective for extracting various metals from various materials, thereby allowing for preparing products such as aluminum chloride, alumina, titanium chloride and titanium oxide. These processes can comprise leaching the starting material with HCl so as to obtain a leachate and a solid. The solid can be treated so as to substantially selectively extract titanium therefrom while the leachate can be treated so as to substantially selectively recover a first metal chloride therefrom. 1. A process for preparing various products , the process comprising:leaching a titanium-containing material comprising Ti, Si and a first metal with HCl so as to obtain a leachate comprising ions of said first metal and a solid comprising titanium, and separating the solid from the leachate;reacting the leachate with HCl so as to obtain a liquid and a precipitate comprising a chloride of the first metal, and separating the precipitate from the liquid;optionally heating the precipitate under conditions effective for converting the chloride of the first metal into an oxide of the first metal and optionally recovering HCl so-produced; andtreating said solid so as to substantially separate Si from Ti that are contained therein.2. The process of claim 1 , wherein said first metal is chosen from aluminum claim 1 , iron claim 1 , zinc claim 1 , copper claim 1 , gold claim 1 , silver claim 1 , molybdenum claim 1 , cobalt claim 1 , magnesium claim 1 , lithium claim 1 , manganese claim 1 , nickel claim 1 , palladium claim 1 , platinum claim 1 , thorium claim 1 , phosphorus claim 1 , uranium and titanium claim 1 , and/or at least one rare earth element and/or at least one rare metal3. The process of claim 1 , wherein said first metal is chosen from aluminum claim 1 , iron claim 1 , zinc claim 1 , copper claim 1 , gold claim 1 , silver claim 1 , magnesium claim 1 , nickel claim 1 , ...

PROCESSES FOR PREPARING TITANIUM OXIDE AND VARIOUS OTHER PRODUCTS

There are provided processes for preparing various products from various materials. For example, such processes are effective for extracting titanium and various other metals from various materials, thereby allowing for preparing products such as titanium chloride and titanium oxide. These processes can comprise leaching the starting material with HCl so as to obtain a leachate and a solid. The solid can be treated so as to substantially selectively extract titanium therefrom while the leachate can be treated so as to substantially selectively recover a first metal chloride therefrom. 1251-. (canceled)252. A process for preparing various products , said process comprising:leaching an aluminum-containing material with HCl so as to obtain a leachate comprising Al, Fe and Mg ions and a solid comprising Si, and separating said solid from said leachate, thereby recovering Si;{'sub': '3', 'recovering said Al from said leachate by recovering Al in the form of precipitated AlCl, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin;'}{'sub': 2', '3, 'recovering said Fe from said leachate by recovering Fe in the form of precipitated FeO, by controlling the temperature of said leachate and/or concentration of HCl, by carrying out an hydrolysis, by using a precipitating agent, or by using an ion exchange resin; and'}{'sub': '2', 'recovering said Mg from said leachate by recovering Mg in the form of precipitated MgCl, by controlling the temperature of said leachate and/or concentration of HCl, by using a precipitating agent, or by using an ion exchange resin.'}253. The process of claim 252 , wherein said aluminum-containing material is leached with HCl having a concentration of about 25 to about 45 weight %.254. The process of claim 252 , wherein said aluminum-containing material is leached with HCl having a concentration of about 25 to about 45 weight % at a temperature of about 125 to ...

Extraction of products from titanium-bearing minerals

The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process.

PRODUCING A TITANIUM PRODUCT

A method () for producing a titanium product is disclosed. The method () can include obtaining TiO-slag (), and producing a titanium product from the TiO-slag using a metallic reducing agent () at a moderate temperature and a pressure to directly produce a titanium product chemically separated from metal impurities in the TiOslag (). The titanium product can comprise TiHand optionally elemental titanium. Impurities in the titanium product can then removed () by leaching, purifying and separation to form a purified titanium product. 1. A method for producing a titanium product , comprising:{'sub': '2', 'obtaining TiO-slag;'}{'sub': 2', '2', '2, 'producing the titanium product from the TiO-slag using a metallic reducing agent at a moderate temperature under a hydrogen atmosphere at a pressure to directly produce the titanium product chemically separated from metal impurities in the TiO-slag, wherein the titanium product comprises TiHand optionally elemental titanium; and'}removing the metal impurities from the titanium product to form a purified titanium product.2. The method of claim 1 , wherein the step of producing the titanium product includes reducing the TiO-slag directly with the metallic reducing agent.3. The method of claim 1 , wherein the step of producing includes pre-treating the TiO-slag to produce intermediate products including at least one of water-washed derivatives of sodium titanate claim 1 , metatitanic acid claim 1 , and substantially pure titanium dioxide and then reducing the intermediate products using the metallic reducing agent.4. The method of claim 3 , further comprising deoxygenating the titanium product at a higher temperature above the moderate temperature and under hydrogen atmosphere using a second reducing agent which is stronger than the metallic reducing agent to produce a particulate titanium product claim 3 , coarsening the particulate titanium product to a target particle size range claim 3 , and cooling the particulate titanium ...

EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MINERALS

The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process. 2. The method of wherein the retentate comprising insoluble residue comprises at least one product selected from calcium sulphate and silica.3. The method of wherein the precipitation of aluminium sulphate comprises the steps of:a. cooling the permeate from step d. or step g. to produce a cooled liquor comprising precipitated aluminium sulphate; andb. filtering the cooled liquor to produce a retentate comprising precipitated aluminium sulphate, and a permeate.4. The method of wherein the particulate material comprises greater than 8 m % titanium dioxide and greater than 10 m % aluminium oxide.5. The method of wherein the particulate material comprises greater than 15 m % titanium dioxide and greater than 10 m % aluminium oxide.6. The method of wherein the particulate material comprises a ratio of titanium dioxide to aluminium oxide (TiO:AlO) of approximately 0.2 to 2.6.7. The method of wherein the step of precipitating aluminium sulphate comprises cooling the permeate to between 10° C. and 4° C.8. The method of claim 1 , further comprising a step of precipitating magnesium sulphate from either:a. the permeate produced from the hydrolysis liquor; orb. the permeate produced following aluminium sulphate precipitation.9. The method of wherein the particulate material is selected from the group consisting of iron slag claim 1 , melter slag claim 1 , obtained from iron slag claim 1 , obtained from melter slag claim 1 , obtained from an iron manufacturing process claim 1 , and obtained from a steel manufacturing process.10. The method of wherein the method further comprises the step of grinding raw material to form the particulate material of step a.11. The method of wherein ...

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.

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 ...

有机物精制除钒泥浆处理工艺

本发明公开了一种有机物精制除钒泥浆处理工艺，属于化工冶金技术领域。本发明为降低精制尾渣中钛的含量，提高除钒泥浆中钒钛回收率，提供了一种有机物精制除钒泥浆处理新工艺，包括：将萃取剂和有机物精制除钒泥浆混合均匀，然后输送到超重力分离装置，分离清液和渣液，再根据渣液和清液中钛含量进行处理，得到精制尾渣、粗四氯化钛，并回收萃取剂。本发明降低精制尾渣中钛的含量，使钛的利用率提高；提高精制尾渣中钒的含量，使精制尾渣中的钒更便于提取，提高钒的利用率，提高了生产效率，降低能耗。

Method of producing titanium dioxide from iron titanium material

FIELD: physics.SUBSTANCE: invention relates to methods of reducing production of titanium dioxide by sulphate technology. Acid decomposition of the iron titanium raw material in sulphuric acid is carried out with formation of an acid decomposition suspension. Sludge is separated to form an acid decomposition solution containing tetravalent titanium and trivalent iron. Solution is reduced using metal iron refined from impurities in a reduction reactor while controlling the degree of reduction until content of trivalent titanium, in terms of total amount of titanium, reaches value of 1 to 5 wt. % in said acid decomposition solution. Crystallization and separation of ferrous sulphate from the reconstituted acid decomposition solution is carried out, followed by hydrolysis and calcination of the hydrolysis product to obtain titanium dioxide. Ferric iron is completely reduced to divalent iron, and tetravalent titanium is selectively and partially reduced to trivalent titanium.EFFECT: method improves the method of sulphate production of titanium dioxide.12 cl, 1 dwg, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 692 544 C1 (51) МПК C01G 23/053 (2006.01) C01G 23/08 (2006.01) C22B 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01G 23/053 (2018.08); C22B 3/08 (2018.08) (21)(22) Заявка: 2018106649, 18.07.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: 25.06.2019 (73) Патентообладатель(и): Кронос Интернациональ, Инк. (DE) 23.07.2015 EP 15002178.0 (56) Список документов, цитированных в отчете о поиске: DE 102007032417 A1, 15.01.2009. (45) Опубликовано: 25.06.2019 Бюл. № 18 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.02.2018 RU 2315818 C2, 27.01.2008. RU 2487836 C1, 20.07.2013. EP 0207403 A2, 07.02.1987. Гармата В.А. Металлургия титана. М., Металлургия, 1968, с. 605. (86) Заявка PCT: 2 6 9 2 5 4 4 R U (87) Публикация заявки PCT: WO 2017/012710 (26.01.2017) Адрес для ...

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" ( ...

Method for producing titanium compound

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IMPROVED METAL RECOVERY METHOD

1. Сульфатный способ получения диоксида титана из титаносодержащего материала (такого как ильменит), относящийся к типу, который содержит следующие стадии: ! (а) выполняют выщелачивание твердого титаносодержащего материала выщелачивающим раствором, содержащим серную кислоту, и получают рабочий раствор, который содержит кислый раствор сульфата титанила (TiOSO4) и сульфата железа (FeSO4); ! (b) разделяют упомянутый рабочий раствор и остаточную твердую фазу, полученные на стадии (а) выщелачивания; ! (с) осаждают сульфат титанила из рабочего раствора, полученного на стадии (b); ! (d) отделяют осажденный сульфат титанила от рабочего раствора; ! (е) обрабатывают упомянутый осажденный сульфат титанила и получают раствор, содержащий сульфат титанила; ! (f) выполняют гидролиз сульфата титанила в упомянутом растворе и получают твердую фазу, содержащую гидратированные оксиды титана и жидкую фазу; ! (g) разделяют упомянутую твердую фазу, содержащую гидратированные оксиды титана, и жидкую фазу; ! (h) прокаливают твердую фазу, полученную на стадии (g), и получают диоксид титана; и ! (i) удаляют сульфат железа из рабочего раствора, полученного на стадии (b), и/или обедненного рабочего раствора, полученного на стадии (d). ! 2. Способ по п.1, дополнительно включающий стадию, на которой подают отделенный рабочий раствор, полученный на стадии (d), и/или отделенную жидкую фазу, полученную на стадии (g), на стадию (а) выщелачивания. ! 3. Способ по п.1 или 2, в котором этап (а) выщелачивания является многоступенчатой, при этом каждую ступень выполняют в одном резервуаре для выщелачивания или в нескольких резервуарах выщелачивания, и эта стадия содержит (i) первую ступень РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2007 141 179 (13) A (51) МПК C22B 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2007141179/02, 07.04.2006 (71) Заявитель(и): БиЭйчПи БИЛЛИТОН ИННОВЕЙШН ПТИ ЛТД (AU) (30) Конвенционный ...

Organic matter refining vanadium-removing slurry treatment process

本发明公开了一种有机物精制除钒泥浆处理工艺，属于化工冶金技术领域。本发明为降低精制尾渣中钛的含量，提高除钒泥浆中钒钛回收率，提供了一种有机物精制除钒泥浆处理新工艺，包括：将萃取剂和有机物精制除钒泥浆混合均匀，然后输送到超重力分离装置，分离清液和渣液，再根据渣液和清液中钛含量进行处理，得到精制尾渣、粗四氯化钛，并回收萃取剂。本发明降低精制尾渣中钛的含量，使钛的利用率提高；提高精制尾渣中钒的含量，使精制尾渣中的钒更便于提取，提高钒的利用率，提高了生产效率，降低能耗。

A kind of processing method of selected titanium ore

本发明公开了一种精选钛矿的处理方法，包括将钛矿粉碎并与浓硫酸反应，得到溶解有钛离子的溶液；结晶析出绿矾；水解得到偏钛酸沉淀；对偏钛酸沉淀进行煅烧得到二氧化钛；将二氧化钛与炭粉混合在通氯气的条件下加热至1000~1100K得到四氯化钛；使四氯化钛高温分解得到金属钛和氯气，对氯气进行回收利用。本发明的有益效果是：本发明能够将矿石中的钛金属完全转化为离子形态，从而使得钛元素能够充分利用，提高了对矿石的利用率，本方案还能够使钛元素与其他元素充分分离，从而使得制得的钛金属纯度高，并且能够实现循环利用氯元素，防止氯元素流入到外界环境而造成环境污染和浪费。

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。

Method for recovering scandium and titanium from scandium-containing titanic acid immersion liquid

本发明公开了一种从含钪钛酸浸液中回收钪和钛的方法，该方法是先用碱将含钪钛酸浸液的pH升高，利用钛离子水解pH较低的特性，在较低pH值条件下即可将钪和钛共沉淀入渣与母液分离。所得钪钛共沉淀物结构不稳定，在热酸条件下即可溶解，而高温会促进钛离子水解转化成较为稳定的偏钛酸沉淀，得到富钪溶液和高钛渣。该方法充分利用钛在不同温度下水解特性差异，先在低温下使钛以水合二氧化钛胶状沉淀的形式与钪一起沉淀析出，再通过热酸浸出使沉淀渣溶解，而钛在高温条件下会以稳定的偏钛酸形式沉淀与富钪液分离，从而实现钪和钛的高效分离。

Method of producing metal products

Способ промышленной очистки потока низкосортного поливалентного катиона с чистотой Р1 путем образования осадка двойной соли поливалентного катиона с чистотой Р2 и раствора поливалентного катиона с чистотой Р3, где Р2>Р1>Р3 включает следующие этапы: (а) образования из упомянутого потока среды, содержащей воду, поливалентный катион, катион, выбираемый из группы, состоящей из аммония, катионов щелочных металлов, протонов и любого их сочетания, и анионы, причем образовавшаяся среда далее характеризуется присутствием (i) осадка двойной соли, содержащего поливалентный катион, по меньшей мере один из упомянутых катионов и по меньшей мере один из упомянутых анионов; и (ii) раствор поливалентного катиона; в которой концентрация упомянутых анионов больше 10% и соотношение между концентрациями упомянутого катиона и упомянутого аниона в упомянутом растворе поливалентного катиона находится в пределах Зоны DS, которая определена в настоящем документе; и (b) отделения по меньшей мере части упомянутого осадка от упомянутого раствора. Техническим результатом изобретения является получение сырья для производства металлопродукта высокой чистоты. 34 з.п. ф-лы, 6 табл., 4 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 478 566 (13) C2 (51) МПК C01B 13/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009140320/05, 01.05.2008 (24) Дата начала отсчета срока действия патента: 01.05.2008 (73) Патентообладатель(и): ЙОМА ИНТЕРНЭШНЛ АС (NO), АШЕР ВИТНЕР ЛТД. (IL) R U Приоритет(ы): (30) Конвенционный приоритет: 03.05.2007 IL 182,946 (72) Автор(ы): ВИТНЕР Ашер (IL) (43) Дата публикации заявки: 10.05.2011 Бюл. № 13 2 4 7 8 5 6 6 (45) Опубликовано: 10.04.2013 Бюл. № 10 (56) Список документов, цитированных в отчете о поиске: WO 2007043055 A, 19.04.2007. SU 629857 A3, 25.10.1978. SU 594046 A1, 25.02.1978. RU 2045477 C1, 10.10.1995. US 5865952 A, 02.02.1999. US 6264904 B1, 24.07.2001. 2 4 7 8 5 6 6 R U (86) Заявка PCT: IL 2008/000583 ...

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 ...

Method for reclaiming metal sulfate-containing waste sulfuric acid

为有效、容易地从硫酸法生产二氧化钛(IV)过程中排放出来的含金属硫酸盐的废硫酸溶液，和在酸洗过程中形成的废液中再生高浓度和低杂质含量的硫酸溶液，用溶剂萃取处理法除掉含金属硫酸盐的废硫酸溶液中的钛，然后对溶剂萃取后得到的溶液进行扩散渗析处理。

Titanium dioxide production process

FIELD: industrial inorganic synthesis. SUBSTANCE: invention relates to a sulfate process for titanium dioxide production from titanium-containing material. Process comprises leaching starting material to produce leaching lye containing acidic solution of titanyl sulfate, which is separated from the lye and then hydrolyzed to form hydrated titanium oxides further fired to produce desired titanium dioxide. Hydrolysis step is properly controlled to form hydrated titanium oxides with desired particle size distribution. EFFECT: enhanced commercial process efficiency. 29 cl, 2 dwg, 9 tbl, 13 ex ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 315 818 (13) C2 (51) ÌÏÊ C22B 34/12 (2006.01) C22B 3/08 (2006.01) C01G 23/053 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005115130/02, 17.10.2003 (72) Àâòîð(û): ÐÎØÅ Ýðèê Æèðâàí (AU), ÑÒÞÀÐÒ Àëàí Äýâèä (AU), ÃÐÅÉÇÈÐ Ôèëèï Ýðíåñò (AU), ËÞ Õîóþàíü (AU) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 17.10.2003 (73) Ïàòåíòîîáëàäàòåëü(è): Áè Ýé÷ Ïè ÁÈËËÈÒÎÍ ÈÍÍÎÂÅÉØÍ ÏÒÈ ËÒÄ. (AU) (43) Äàòà ïóáëèêàöèè çà âêè: 10.02.2006 R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 18.10.2002 AU 2002952155 (45) Îïóáëèêîâàíî: 27.01.2008 Áþë. ¹ 3 2 3 1 5 8 1 8 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 6375923 Â, 23.04.2002. RU 2171228 Ñ2, 27.07.2001. US 6048505 À, 11.04.2000. WO 02/48412 À, 20.06.2002. US 5277816 A, 11.01.1994. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 18.05.2005 2 3 1 5 8 1 8 R U (87) Ïóáëèêàöè PCT: WO 2004/035842 (29.04.2004) C 2 C 2 (86) Çà âêà PCT: AU 03/01385 (17.10.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé, ðåã.¹ 513 (54) ÏÎËÓ×ÅÍÈÅ ÄÈÎÊÑÈÄÀ ÒÈÒÀÍÀ (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê ñïîñîáó ïîëó÷åíè äèîêñèäà òèòàíà ñóëüôàòíûì ìåòîäîì èç òèòàíñîäåðæàùåãî ìàòåðèàëà. Ñïîñîá âêëþ÷àåò âûùåëà÷èâàíèå òèòàíñîäåðæàùåãî ìàòåðèàëà è ïîëó÷åíèå ...

Reactive metal oxide extraction method

【課題】ボーキサイト鉱石と赤泥残渣からのアルミナ、イルメナイトからの二酸化チタンの無廃棄物抽出方法を提供する。 【解決手段】Ｃ飽和鋳鉄合金の融点より高温で酸化鉄を還元して金属鉄と、高Ｃ鉄合金とＡｌおよびＴｉ金属酸化物に富むスラグを生成し、炭酸アルカリで処理してアルミン酸アルカリおよびチタン酸塩を形成する。アルミニウムアルカリを水浸出により分離し、ＣＯ 2 吹き込みによりアルミナ水酸化物を沈殿させる。水浸出の残渣を硫酸で処理し、ＴｉＯ 2 を加水分解ルートにより沈殿させる。金属のほとんどを回収し、ｐＨ４〜５で、土壌調整に使用できるケイ酸質残渣を生成する。炭酸アルカリの存在下で酸化的焙焼を行い、焙焼物の水浸出を行い、ＴｉＯ 2 をｐＨ４未満の調節条件下で選択的に沈殿させ、ＴｉＯ 2 に富む酸化物をチタニア鉄鉱石／残渣物質から選択的に分離する方法も提供される。

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 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 ...

Electrochemical reactor for installation producing titanium di:oxide - from ilmenite, used to reduce ferric ions in soln.

An electrochemical reactor, for incorporation in an installation producing titanium dioxide from ilmenite by the sulphate process, is used to reduce ferric ions contained in the soln. (A) remaining after attack on the ilmenite by conc. H2SO4. The reactor is composed of >=1 cell which contains (i) compartment through which soln. (A) can flow, contg. a cathode which consists of a non-compressed bed of electrically conducting particles in contact ith a current collector; (ii) at least one compartment through which a soln. (B) contg. H2SO4 can flow, contg. an anode, the anode and the current collector being connected respectively to the + and - poles of a continuous voltage source; (iii) an electrically insulating diaphragm between compartments (i) and (ii), made of microporous material; (iv) the means of circulating solns. (A) and (B) into their respective compartments. The reactor can be used industrially, replacing the conventional redn. method using scrap iron.

PROCESS FOR DEULFATATION OF ACID RELEASES FROM THE TITANIUM INDUSTRY

Improvements in the filtration of solutions and similar compositions

A method for the production of metal products

The invention provides a method for the Industrial purification of a low-grade polyvalent cation feed stream of purity P1, by the formation of a polyvalent cation- double-salt precipitate of purity P2 and a polyvalent cation solution with purity P3, wherein P2>P1>P3, said method comprising the steps of: a) forming, from said feed, a medium comprising water, polyvalent cation, a cation selected from the group consisting of ammonium, cations of alkali metals, protons and a combination thereof, and anions; which formed medium is further characterized by the presence of (i) a double- salt precipitate comprising a polyvalent cation, at least one of said cations and at least one of said anions; and (ii) a polyvalent cation solution; and wherein the concentration of said anions is higher then 10% and the ratio between the concentrations of said cation to said anion in said polyvalent cation solution is within Zone DS as herein defined; and b) separating at least a portion of said precipitate from said solution.

Patent FR2209847B1

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 AND PURIFICATION OF TITANYLE HYDRATE

L'INVENTION CONCERNE LA PURIFICATION DE L'HYDRATE DE TITANYLE. SELON LE PROCEDE DE L'INVENTION, L'HYDRATE DE TITANYLE EST SEPARE DE LA SUSPENSION, LAVE ET REMIS EN SUSPENSION AVEC DE L'EAU POUR FLUIDIFIER LA SUSPENSION D'HYDRATE DE TITANYLE RESULTANTE. LA BOUILLIE D'HYDRATE DE TITANYLE REMISE EN SUSPENSION EST ENSUITE TRAITEE PAR ADDITION D'UN COMPOSE DE TITANE TRIVALENT EN UNE QUANTITE COMPRISE ENTRE ENVIRON 0,01G ET ENVIRON 0,7G DE COMPOSE DE TITANE TRIVALENT MESURE EN TIO POUR 100G D'HYDRATE DE TITANYLE EXPRIME EN TIO CALCINE EN L'ABSENCE DE QUANTITES D'ACIDE SUPPLEMENTAIRES. L'HYDRATE DE TITANYLE EST ENSUITE SEPARE DE LA SUSPENSION TRAITEE, LAVE ET RECUPERE. THE INVENTION IS CONCERNED WITH THE PURIFICATION OF TITANYL HYDRATE. ACCORDING TO THE PROCEDURE OF THE INVENTION, TITANYL HYDRATE IS SEPARATED FROM THE SUSPENSION, WASHED AND RESUSPENSION WITH WATER TO FLUIDIFY THE RESULTING TITANYL HYDRATE SUSPENSION. THE RESUSPENDED TITANYL HYDRATE SLURRY IS THEN TREATED BY ADDITION OF A TITANIUM COMPOUND TRIVALENT IN AN AMOUNT BETWEEN ABOUT 0.01G AND ABOUT 0.7G OF TITANIUM COMPOUND TRIVALENT MEASURED IN TIO PER 100G OF HYDRATE OF TITANYL EXPRESSED AS TIO CALCINE IN THE ABSENCE OF ADDITIONAL AMOUNTS OF ACID. THE TITANYL HYDRATE IS THEN SEPARATED FROM THE TREATED SUSPENSION, WASHED AND RECOVERED.

Patent FR2363642B1

RUTILE PURIFICATION PROCESS

L'INVENTION A POUR OBJET UN PROCEDE DE SEPARATION DU RUTILE QU'ON OBTIENT AU COURS DU TRAITEMENT D'ILMENITE. ON AGITE UNE SUSPENSION DE RESIDUS DE LIXIVIATION CONTENANT UN MELANGE D'ILMENITE ET DE RUTILE, ON LAISSE CETTE SUSPENSION SE DEPOSER, ON DECANTE LE RUTILE EN SUSPENSION POUR LE SEPARER DE L'ILMENITE DEPOSEE, ON REGLE LE PH DE LA SOLUTION DECANTEE DE RUTILE POUR EFFECTUER LA FLOCULATION DE CE DERNIER ET ON RECUEILLE LE RUTILE FLOCULE. PRODUCTION DU BIOXYDE DE TITANE SERVANT DE PIGMENT DANS DIVERSES INDUSTRIES. THE OBJECT OF THE INVENTION IS A PROCESS FOR SEPARATING THE RUTILE THAT IS OBTAINED DURING THE TREATMENT OF ILMENITE. WE SHAKE A SUSPENSION OF LEACH RESIDUES CONTAINING A MIXTURE OF ILMENITE AND RUTILE, WE ALLOW THIS SUSPENSION TO DEPOSIT, WE DECAN THE RUTILE IN SUSPENSION TO SEPARATE IT FROM THE DEPOSITED ILMENITE, THE PH OF THE RUTILE RUTILE IS ADJUSTED TO PERFORM THE FLOCCULATION OF THE LATTER AND WE COLLECT THE FLOCCLE RUTILE. PRODUCTION OF TITANIUM BIOXIDE FOR USE AS A PIGMENT IN VARIOUS INDUSTRIES.

PROCESS FOR DEULFATATION OF ACID RELEASES FROM THE TITANIUM INDUSTRY

La présente invention concerne un procédé de désulfatation des rejets acides de l'industrie du Titane. La présente invention concerne notamment un procédé de désulfatation d'un effluent liquide, comprenant de l'acide sulfurique, issu d'un procédé de production de l'oxyde de titane caractérisé en ce qu'il comprend une étape (i) consistant à mettre en contact ledit effluent liquide avec une composition comprenant du zinc.

Method of attack by hydrochloric acid on minerals containing titanium dioxide

Method for recovering titanium dioxide from titanium dioxide bearing materials like steel making slags

从含二氧化钛的原料，如富含TiO 2 的钢炉渣中回收二氧化钛的方法，包括以下步骤：研磨二氧化钛原料，使该颗粒状原始进料与硫酸在规定条件下反应，溶解和过滤含有硫酸氧钛的所得饼状物，水解硫酸氧钛，以及在洗涤水解产物后，煅烧该水解产物，以获得二氧化钛。

The extraction agent solution and extracting process of titanium and iron are extracted from containing the more metal chloride acid solutions of ferrotianium

本发明公开从含钛铁多金属氯化物酸性溶液中萃取钛和铁的萃取剂溶液及萃取方法，由萃取剂和稀释剂组成；所述萃取剂为季铵盐R 4 NX、N‑烷基酰胺、N，N‑二烷基酰胺和二乙醇酰胺中的一种或多种；所述稀释剂为油醇、油醇衍生物、链烷醇和常温下为液态的乙酸酯类化合物中的一种或多种。本发明的技术方案对钛铁萃取能力强、平衡快、选择性好、易反萃、分离好，且经济环保。

Process for the preparation of tetravalent titanium compounds

Extraction of products from titanium-bearing minerals

The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process.

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。

Method for reclaiming metal sulfate-containing waste sulfuric acid

For the purpose of efficiently and easily regenerating a sulfuric acid solution having a high concentration and a low impurity content from a metal sulfate-containing waste sulfuric acid solution and waste liquor formed during acid cleaning which are discharged from titanium (IV) oxide-production process carried out according to the sulfuric acid method. titanium present in the metal sulfate-containing waste sulfuric acid solution is removed through a solvent-extraction treatment and then the solution obtained after the solvent-extraction is subjected to a diffusive dialysis treatment.

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 ...

Treatment of waste or cyclone solids from chlorination of titanite

Recovery of titanium dioxide from ilmenite-type ores

Process for the preparation of titanium dioxide

PROCESS FOR PROCESSING IRON (II) SULFATE-CONTAINING METAL SULFATE MIXTURES

Improvements in and relating to the treatment of solutions of titanium sulphate

Crude concentrated titanium sulphate solutions having a specific gravity above 1,5 are clarified by treatment in a "clarifying" centrifuge at ordinary or elevated temperatures. Centrifuging may take place before or after ferrous sulphate present has been crystallized out by cooling, and in the latter case with or without separation of the ferrous sulphate crystals. The bulk of the solids present may first be removed by settling if desired.

Recovery of titanium from titanium bearing materials

A method of recovering titanium dioxide from a raw material additionally containing aluminium includes the steps of grinding the titanium dioxide raw material, reacting the particulate raw feed material with sulphuric acid under specified conditions, digesting and filtering the resultant cake material containing titanyl sulphate, if present, treating the solution to remove calcium and/or iron, precipitating out the aluminium as aluminium ammonium sulphate, hydrolysing the remaining titanyl sulphate solution and, after washing the hydrolysate, calcining the hydrolysate to produce titanium dioxide.

Production of titanium products

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.

Purification of titanium sulphate solutions

Method of production of oxides of refractory metals from loparite concentrate

FIELD: production of oxides of refractory metals from loparite concentrate. SUBSTANCE: proposed method includes grinding of concentrate and break-down with concentrated nitric acid at atmospheric pressure and temperature above 100 C, thus obtaining pulp of hydrate cake of refractory metal oxides followed by fluorination for obtaining fluoride solution of tantalum, niobium and titanium. Extraction from solution is effected by means of actyl alcohol followed by water reextraction of fluotantal and fluoniobium acids and concentration of remaining fluotitanic acid by evaporation. Extraction of tantalum and niobium oxides from fluotantal and fluoniobium acids and titanium dioxide from fluotitanic acid is performed by high-temperature pyrolysis at temperature of from 600 to 650 C. Fluorination of hydrate cake pulp is performed through absorption of gaseous hydrogen fluoride from flue gases by pump; flue gases are formed due to high-temperature pyrolysis of fluotantal, fluoniobium and fluotitanic acids; to this end, flue gases and hydrate cake pulp are directed in counterflow in pulp recirculation mode. EFFECT: simplification of method; enhanced operational and economical efficiency. 1 tbl, 1 ex 3 21091сС ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ” 2 160 787‘ 13) СЛ С 22 В 34/24, 34/12, 3/06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2000116529/02, 27.06.2000 (24) Дата начала действия патента: 21.06.2000 (46) Дата публикации: 20.12.2000 (56) Ссылки: КУ 2149912 С1 27.12.1999. $Ц 198654 07.08.1967. 5Ц 1041535 А, 15.09.1983. Реферативный журнал Металлургия, 1987, реферат 6Г 268П. Реферативный журнал Металлургия, 1992, реферат 10Г166. ОЕ 4207145 АЛ, 29.04.1993. 4$ 5084253 28.01.1992. (98) Адрес для переписки: 193036, Санкт-Петербург, а/я 24, "НЕВИНПАТ", Андрееву В.И. (71) Заявитель: Закрытое акционерное общество "РОСРЕДМЕТ" (72) Изобретатель: Зоц Н.В., Шестаков С.В. (73) Патентообладатель: Закрытое акционерное ...

Production of titanium dioxide

Product is extracted from titaniferous ore

本发明涉及一种从含钛矿物，如钙钛矿提取金属和盐的方法。更确切地说，不过并非排他性地，本发明涉及从来源于炼铁工艺的熔渣提取二氧化钛和任选地其他化合物。

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.

Recovery of titanium dioxide from titanium oxide bearing materials like steelmaking slags

Method for extracting and recycling scandium and titanium from acid leaching solution containing scandium and titanium

本发明公开了一种从含钪钛酸浸出液中萃取回收钪钛的方法，针对钪钛共存的酸性溶液，充分利用酸浸出液浓度较高，以及高酸度可以抑制铁和钛,提高有机膦酸类萃取剂对钪的选择性的特性优先萃取钪，并用NaOH溶液反萃得到富钪渣，萃钪后再利用对钛选择性较好的胺类萃取剂萃取钛，用NH 4 Cl‑H 2 O 2 混合溶液反萃钛，反萃液浓缩结晶分离出NH 4 Cl晶体得到富钛液。本发明实现了钪和钛的有效回收，解决了通常条件下有机膦酸类萃取剂以及胺类萃取剂分别萃取钪和钛时因铁、钪、钛分离不彻底而导致后续分离繁琐的问题；短流程、成本低，实现了酸浸出液以及钛白生产废酸中低浓度钪钛的综合回收，具有工艺流程简单、钪钛富集比高、分离彻底、生产成本低、无污染等特点。

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.

Extraction of products from titanium-bearing minerals

Rutile purification

Extraction of products from titanium-bearing minerals

The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process. More particularly, although not exclusively, the invention relates to a method of recovering titanium dioxide and aluminium sulphate from a particulate material, said method comprising: a. contacting the particulate material with sulphuric acid and heating to form a sulphated mixture; b. filtering the sulphated mixture to produce a filter cake and a first permeate comprising sulphuric acid; c. contacting the filter cake with water to form a sulphated suspension comprising titanyl sulphate; d. filtering the sulphated suspension to produce a permeate comprising at least titanyl sulphate, and a retentate comprising insoluble residue; e. contacting the permeate comprising at least titanyl sulphate with water to produce a hydrolysis liquor; f. hydrolysing the titanyl sulphate; g. separating titanium dioxide hydrate from the hydrolysis liquor to produce a permeate comprising aluminium sulphate, and a retentate comprising titanium dioxide hydrate; and h. precipitating aluminium sulphate from the permeate; wherein step h. may be carried out after step d or after step g.

METHOD OF USING FERROUS SULPHATE IN THE MANUFACTURE OF PIGMENTAL TITANIUM BIOXIDE BY THE SULPHURIC VOICE

La présente invention concerne l'utilisation de sulfate ferreux et sa transformation en sulfate ferrique au cours de la réduction électrochimique des solutions titanifères dans un électrolyseur à diaphragme. Du sulfate ferreux résiduaire de la fabrication du bioxyde de titane par voie sulfurique est introduit sous forme de solution dans le compartiment anodique d'une cellule d'électrolyse, tandis que dans le compartiment cathodique de la même cellule s'effectue simultanément la réduction du fer ferrique contenu dans la solution titanifère. Le procédé permet une importante économie d'énergie électrique par rapport aux procédés électrolytiques connus, à la fois pour la réduction électrochimique des solutions titanifères et pour la transformation du sulfate ferreux en sulfate ferrique. The present invention relates to the use of ferrous sulphate and its transformation into ferric sulphate during the electrochemical reduction of titanium-containing solutions in a diaphragm electrolyser. Ferrous sulphate residual from the manufacture of titanium dioxide by the sulfuric route is introduced in the form of a solution into the anode compartment of an electrolysis cell, while in the cathode compartment of the same cell the reduction of iron is carried out simultaneously. ferric content in the titanium solution. The process allows a significant saving of electrical energy compared to known electrolytic processes, both for the electrochemical reduction of titanium-containing solutions and for the transformation of ferrous sulfate into ferric sulfate.

Process for the oxidation of Ti3 + to Ti4 + in the production of titanium dioxide by the sulphate process

Verfahren zur Herstellung von Titandioxid nach dem Sulfatverfahren, bei dem ein titanhaltiger Rohstoff mit Schwefelsäure aufgeschlossen wird, dadurch gekennzeichnet, dass in der Aufschlusslösung gelöstes Ti3+ mit Wasserstoffperoxidlösung zu Ti4+ oxidiert wird, wobei die Wasserstoffperoxidlösung nach einer Lösungszeit von 2 bis 10 Stunden in das Reaktionsgefäß gegeben wird und die Temperatur der Aufschlusslösung vor der Zugabe der Wasserstoffperoxidlösung 50 bis 90°C beträgt.

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 SULFURIC ACID, IRON (III)-FREE TITANYL SULPHATE SOLUTIONS.

Process for removing inorganic gels and incompressible solids from acid media

Process for removing inorganic gels and dispersed, particulate incompressible solids from an aqueous slurry having a pH of about -2 to + 3 and a soluble metallic chloride content of about 3 to 50 percent by weight, based on the total weight of the slur-ry, comprising: (a) rapidly and intimately contacting the slurry with an effective amount of a cationic Mannich polyacrylamide having an average molecular weight of about 4-15 million until the desired amount of gel and particulate solids are flocculated, (b) slowly and gently mixing the product of step (a) until floc of the desired size is formed, and (c) removing the floc from the product of step (a).

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.

Metal sulfate suspension obtained from diluted acid, process for its preparation and its use

Improved titanium precipitation process

A sulfate process for producing titania from a titaniferous material as disclosed. The process is characterized by a particular step of precipitating titanyl sulfate from solution.

A kind of method for 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。

Method for recovering titanium

A method for recovering titanium from a sulfuric acid solution containing chiefly titanium and iron, comprises adding NaCl or the like to the sulfuric acid solution and contacting the resultant solution with a specified organic solvent to extract iron from the aqueous solution into the organic solvent as chloride complex, contacting the residual aqueous solution with another specified organic solvent to extract titanium from the aqueous solution into that organic solvent as chloride complex, contacting the resultant organic solution with an aqueous solution containing NH₄⁺ or K⁺ together with HF to inversely extract titanium ions therein, and then adding NH₃ gas, NH₄OH or KOH to the aqueous solution to form a precipitate such as (NH₄)₂TiF₆ or titanium hydroxide. Titanium halides and alkoxides may be produced from the precipitate.

Process for the production of acidic titanyl sulphate solutions

METHOD FOR PRODUCING TITANIC SULFATE SOLUTIONS AND TITANIUM DIOXIDE

Method for producing titanium

Patent FI761256A

Process for recovering valuable metals from sulfate solutions

Abstract of the Disclosure Sulfate solutions containing at least one valuable metal from the group: Fe, Ni and Co, particu-larly solutions resulting from the leaching of lateritic ores or concentrates, are treated to recover the valuable metal. The latter is precipitated by treating the solu-tion with magnesium hydroxide. The resulting magnesium-containing solution is treated with lime under controlled conditions to precipitate relatively fine particles of magnesium hydroxide and relatively coarse particles of gypsum. The difference in particle size is relied on to separate the magnesium hydroxide (for recycling) from the gypsum (which is calcined to regenerate lime).

Method for clarifying titanium sulphate solutions

Processes for producing titanium dioxide

Patent FR2083651A1

Process for the recovery of titanium dioxide from titanium-containing compositions

The present invention seeks to improve beneficiation of a titanium oxide-containing composition (such as a low-grade or highly radioactive TiO2 ore) by combining a roasting and selective leaching steps.

Producing a titanium product

A method (400) for producing a titanium product is disclosed. The method (400) can include obtaining TiO2-slag (401), and producing a titanium product from the TiO2-slag using a metallic reducing agent (402) at a moderate temperature and a pressure to directly produce a titanium product chemically separated from metal impurities in the TiO2slag (403). The titanium product can comprise TiH2 and optionally elemental titanium. Impurities in the titanium product can then removed (404) by leaching, purifying and separation to form a purified titanium product.

Process for the reduction of fluorides of silicon, titanium, zirconium or uranium

A process is disclosed for producing silicon, titanium, zirconium or uranium by reduction of a fluoro compound with sodium followed by leaching with an aqueous alkaline earth metal chloride and recovery of the sodium metal through electrolytic reduction.

Process for recovering titanianc compound and process for preparing titanium halide and polymerizing catalyst

钛化合物的回收方法包括使含烷氧基钛的废溶液与卤化剂接触,将至少部分烷氧基钛转化成卤化钛,随后蒸馏含卤化钛的溶液以从溶液中回收卤化钛。或者包括蒸馏含烷氧基钛和卤化钛的废溶液以回收至少部分卤化钛,使得到的蒸馏器残余物与卤化剂接触,将至少部分烷氧基钛转化成卤化钛,蒸馏该含卤化钛的溶液以回收卤化钛。本发明方法可从含烷氧基钛的废溶液中回收大量钛化合物。