WO2009063482A3 - Extraction of alumina - Google Patents

Extraction of alumina Download PDF

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Publication number
WO2009063482A3
WO2009063482A3 PCT/IN2008/000440 IN2008000440W WO2009063482A3 WO 2009063482 A3 WO2009063482 A3 WO 2009063482A3 IN 2008000440 W IN2008000440 W IN 2008000440W WO 2009063482 A3 WO2009063482 A3 WO 2009063482A3
Authority
WO
WIPO (PCT)
Prior art keywords
alumina
aluminate
ore
residue
extraction
Prior art date
Application number
PCT/IN2008/000440
Other languages
French (fr)
Other versions
WO2009063482A2 (en
Inventor
Prashant Mickey Puri
Sadguru Kulkarni
Sanjaya Hohapatra
Anant Samdani
Rahul Jadhav
Mayur Kapse
Seema Salvi
Original Assignee
Aditya Birla Science & Technol
Hindalco Ind Ltd
Prashant Mickey Puri
Sadguru Kulkarni
Sanjaya Hohapatra
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 & Technol, Hindalco Ind Ltd, Prashant Mickey Puri, Sadguru Kulkarni, Sanjaya Hohapatra filed Critical Aditya Birla Science & Technol
Publication of WO2009063482A2 publication Critical patent/WO2009063482A2/en
Publication of WO2009063482A3 publication Critical patent/WO2009063482A3/en

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
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0613—Pretreatment of the minerals, e.g. grinding
    • 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
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/08—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals with sodium carbonate, e.g. sinter 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
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/08—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals with sodium carbonate, e.g. sinter processes
    • C01F7/085—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals with sodium carbonate, e.g. sinter processes according to the lime-sinter process
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/22—Remelting metals with heating by wave energy or particle radiation
    • C22B9/221—Remelting metals with heating by wave energy or particle radiation by electromagnetic waves, e.g. by gas discharge lamps
    • C22B9/225—Remelting metals with heating by wave energy or particle radiation by electromagnetic waves, e.g. by gas discharge lamps by microwaves
    • 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)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A process for extraction of alumina from aluminum containing ores is disclosed. The process involves the following steps: determining the alumina and silica content in the ore; treating the ore with caustic, subjecting the reaction mass to electromagnetic radiation, leaching soluble intermediate product with water to separate insoluble red mud as residue and to obtain a filtrate containing aluminate, silicate and vanadate; separating silicate and other impurities as residue from the filtrate to obtain beneficiated aluminate liquor and extracting alumina from sodium aluminate by a conventional method.
PCT/IN2008/000440 2007-07-09 2008-07-09 Extraction of alumina WO2009063482A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1313MU2007 2007-07-09
IN1313/MUM/2007 2007-07-09

Publications (2)

Publication Number Publication Date
WO2009063482A2 WO2009063482A2 (en) 2009-05-22
WO2009063482A3 true WO2009063482A3 (en) 2009-07-02

Family

ID=40639272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000440 WO2009063482A2 (en) 2007-07-09 2008-07-09 Extraction of alumina

Country Status (4)

Country Link
AR (1) AR074033A1 (en)
PE (1) PE20100331A1 (en)
TW (1) TW200909355A (en)
WO (1) WO2009063482A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010025519A1 (en) * 2008-09-04 2010-03-11 The University Of Queensland Method and apparatus for separating clay from ore fragments
RU2606821C1 (en) * 2015-09-03 2017-01-10 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Method of processing nepheline ore
RU2688083C1 (en) * 2018-05-16 2019-05-17 Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) Method of nepheline concentrate desiliconization and device for its implementation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311520A (en) * 1980-02-28 1982-01-19 Cato Research Corporation Process for the recovery of nickel, cobalt and manganese from their oxides and silicates
US20040016632A1 (en) * 2002-07-26 2004-01-29 Jeremy Barker Methods of making transition metal compounds useful as cathode active materials using electromagnetic radiation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311520A (en) * 1980-02-28 1982-01-19 Cato Research Corporation Process for the recovery of nickel, cobalt and manganese from their oxides and silicates
US20040016632A1 (en) * 2002-07-26 2004-01-29 Jeremy Barker Methods of making transition metal compounds useful as cathode active materials using electromagnetic radiation

Also Published As

Publication number Publication date
PE20100331A1 (en) 2010-05-23
WO2009063482A2 (en) 2009-05-22
TW200909355A (en) 2009-03-01
AR074033A1 (en) 2010-12-22

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