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RU2006103611A - METHOD FOR PRODUCING CHROMITE CONCENTRATE - Google Patents

METHOD FOR PRODUCING CHROMITE CONCENTRATE Download PDF

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Publication number
RU2006103611A
RU2006103611A RU2006103611/02A RU2006103611A RU2006103611A RU 2006103611 A RU2006103611 A RU 2006103611A RU 2006103611/02 A RU2006103611/02 A RU 2006103611/02A RU 2006103611 A RU2006103611 A RU 2006103611A RU 2006103611 A RU2006103611 A RU 2006103611A
Authority
RU
Russia
Prior art keywords
followed
stage
leaching
filtration
suspension
Prior art date
Application number
RU2006103611/02A
Other languages
Russian (ru)
Other versions
RU2312912C2 (en
Inventor
Игорь Александрович Богданов (RU)
Игорь Александрович Богданов
Гамлет Суренович Мурадов (RU)
Гамлет Суренович Мурадов
Владимир Федорович Плюхин (RU)
Владимир Федорович Плюхин
Юрий Николаевич Лосев (RU)
Юрий Николаевич Лосев
Original Assignee
Игорь Александрович Богданов (RU)
Игорь Александрович Богданов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Игорь Александрович Богданов (RU), Игорь Александрович Богданов filed Critical Игорь Александрович Богданов (RU)
Priority to RU2006103611A priority Critical patent/RU2312912C2/en
Publication of RU2006103611A publication Critical patent/RU2006103611A/en
Application granted granted Critical
Publication of RU2312912C2 publication Critical patent/RU2312912C2/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Claims (1)

Способ получения хромитового концентрата из бедных хромсодержащих руд, включающий измельчение руды, термическую обработку, выщелачивание растворами минеральных кислот с последующей фильтрацией суспензии, промывку и сушку конечного продукта, отличающийся тем, что термическую обработку исходного сырья проводят при температуре 500-550°С, процесс выщелачивания и фильтрации проводят в две стадии с дополнительной обработкой твердого остатка раствором едкого натра с последующей фильтрацией, при этом первая стадия выщелачивания заключается в обработке обожженной руды кислым оборотным фильтратом концентрации 230-250 г/л серной или 90-110 г/л соляной кислоты с последующей фильтрацией суспензии и направлением твердого остатка на вторую стадию, а вторая стадия - в обработке твердого остатка раствором серной или соляной кислоты концентрации соответственно 300-550 г/л и 110-220 г/л с последующей фильтрацией суспензии и направлением фильтрата на первую стадию выщелачивания.A method of producing a chromite concentrate from poor chromium-containing ores, including grinding ore, heat treatment, leaching with solutions of mineral acids, followed by filtering the suspension, washing and drying the final product, characterized in that the heat treatment of the feedstock is carried out at a temperature of 500-550 ° C, the leaching process and filtration is carried out in two stages with additional processing of the solid residue with sodium hydroxide solution, followed by filtration, with the first leaching stage being treating the calcined ore with an acid circulating filtrate of a concentration of 230-250 g / l sulfuric or 90-110 g / l hydrochloric acid, followed by filtering the suspension and directing the solid residue to the second stage, and the second stage - processing the solid residue with a solution of sulfuric or hydrochloric acid, respectively 300-550 g / l and 110-220 g / l followed by filtration of the suspension and directing the filtrate to the first leaching stage.
RU2006103611A 2006-02-08 2006-02-08 Method of production of chromite concentrate RU2312912C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2006103611A RU2312912C2 (en) 2006-02-08 2006-02-08 Method of production of chromite concentrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2006103611A RU2312912C2 (en) 2006-02-08 2006-02-08 Method of production of chromite concentrate

Publications (2)

Publication Number Publication Date
RU2006103611A true RU2006103611A (en) 2007-08-20
RU2312912C2 RU2312912C2 (en) 2007-12-20

Family

ID=38511740

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2006103611A RU2312912C2 (en) 2006-02-08 2006-02-08 Method of production of chromite concentrate

Country Status (1)

Country Link
RU (1) RU2312912C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI1010875A2 (en) * 2009-04-30 2016-03-15 World Resources Co process for the recovery of metals and metal compounds from extracted ore and other metal-containing raw materials
RU2535254C1 (en) * 2013-10-31 2014-12-10 Игорь Александрович Фарбер Method of complex processing of serpentine-chromite crude ore

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752301A (en) * 1951-03-07 1956-06-26 Walter M Weil Recovery of chromium and iron values from chromium-iron ores
IT1239958B (en) * 1990-05-09 1993-11-27 Stoppani Luigi Spa PROCESS AND PLANT FOR THE PREPARATION OF ALKALINE CHROMATES FROM CHROME MINERALS
AU5806896A (en) * 1996-05-31 1998-01-05 Ug Plus International Inc. Process for obtaining chromium enriched chromite from chromite ores
ATE335861T1 (en) * 2003-02-06 2006-09-15 Ressources Minieres Pro Or Inc METHOD FOR INCREASING THE CHROME/IRON RATIO OF CHROMITE PRODUCTS

Also Published As

Publication number Publication date
RU2312912C2 (en) 2007-12-20

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Legal Events

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PD4A Correction of name of patent owner
MM4A The patent is invalid due to non-payment of fees

Effective date: 20190209

NF4A Reinstatement of patent

Effective date: 20200110