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WO2009066308A3 - Extraction of alumina - Google Patents

Extraction of alumina Download PDF

Info

Publication number
WO2009066308A3
WO2009066308A3 PCT/IN2008/000442 IN2008000442W WO2009066308A3 WO 2009066308 A3 WO2009066308 A3 WO 2009066308A3 IN 2008000442 W IN2008000442 W IN 2008000442W WO 2009066308 A3 WO2009066308 A3 WO 2009066308A3
Authority
WO
WIPO (PCT)
Prior art keywords
alumina
extraction
beneficiated
vanadate
ore
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IN2008/000442
Other languages
French (fr)
Other versions
WO2009066308A2 (en
Inventor
Prashant Mickey Puri
Sadguru Kulkarni
Sanjaya Mohapatra
Anant Samdani
Rahul Jadhav
Mayur Kapse
Seema Salvi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aditya Birla Science and Technology Co Ltd
Hindalco Industries Ltd
Original Assignee
Aditya Birla Science and Technology Co Ltd
Hindalco Industries Ltd
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 Aditya Birla Science and Technology Co Ltd, Hindalco Industries Ltd filed Critical Aditya Birla Science and Technology Co Ltd
Publication of WO2009066308A2 publication Critical patent/WO2009066308A2/en
Publication of WO2009066308A3 publication Critical patent/WO2009066308A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/0015—Obtaining aluminium by wet processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/22—Obtaining vanadium
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A process for extraction of alumina from aluminum containing ores is disclosed. The process comprises the following steps, determining the alumina and silica content in the ore; treating the ore with caustic and heat, leaching the intermediate mass so produced with water to obtain a filtrate containing aluminate and silicate, vanadate and other soluble impurities; separating silicate and vanadate and other impurities as residue from the filtrate to obtain beneficiated aluminate liquor; and extracting alumina from the beneficiated aluminate liquor by a conventional method.
PCT/IN2008/000442 2007-07-09 2008-07-09 Extraction of alumina Ceased WO2009066308A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1314MU2007 2007-07-09
IN1314/MUM/2007 2007-07-09

Publications (2)

Publication Number Publication Date
WO2009066308A2 WO2009066308A2 (en) 2009-05-28
WO2009066308A3 true WO2009066308A3 (en) 2009-07-16

Family

ID=40667934

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000442 Ceased WO2009066308A2 (en) 2007-07-09 2008-07-09 Extraction of alumina

Country Status (4)

Country Link
AR (1) AR074034A1 (en)
PE (1) PE20100332A1 (en)
TW (1) TW200909356A (en)
WO (1) WO2009066308A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2561417C2 (en) * 2013-11-07 2015-08-27 Федеральное государственное бюджетное учреждение науки Институт химии твердого тела Уральского отделения Российской академии наук Method of extraction of aluminium oxide from red slime
CN116536089B (en) * 2022-01-26 2025-11-21 国家能源投资集团有限责任公司 Alkali regeneration method of coal ash removal alkali liquor and coal ash removal method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891608A (en) * 1929-12-26 1932-12-20 Electric Smelting & Aluminum C Process of producing alumina
US2947606A (en) * 1957-05-21 1960-08-02 Anaconda Co Production of silica-free alumina
US4048285A (en) * 1974-04-04 1977-09-13 Chemokomplex Vegyipari Gep-Es Berendezes Export-Import Vallalat Process for the extraction of alumina from minerals, rocks and industrial by-products
JPH08325011A (en) * 1995-05-26 1996-12-10 Showa Denko Kk Aluminum hydroxide and its production

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891608A (en) * 1929-12-26 1932-12-20 Electric Smelting & Aluminum C Process of producing alumina
US2947606A (en) * 1957-05-21 1960-08-02 Anaconda Co Production of silica-free alumina
US4048285A (en) * 1974-04-04 1977-09-13 Chemokomplex Vegyipari Gep-Es Berendezes Export-Import Vallalat Process for the extraction of alumina from minerals, rocks and industrial by-products
JPH08325011A (en) * 1995-05-26 1996-12-10 Showa Denko Kk Aluminum hydroxide and its production

Also Published As

Publication number Publication date
PE20100332A1 (en) 2010-05-23
AR074034A1 (en) 2010-12-22
WO2009066308A2 (en) 2009-05-28
TW200909356A (en) 2009-03-01

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