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WO2002090605A8 - Acid digestion process for treating alumina-bearing ores to recover metal values therefrom - Google Patents

Acid digestion process for treating alumina-bearing ores to recover metal values therefrom

Info

Publication number
WO2002090605A8
WO2002090605A8 PCT/US2002/013960 US0213960W WO02090605A8 WO 2002090605 A8 WO2002090605 A8 WO 2002090605A8 US 0213960 W US0213960 W US 0213960W WO 02090605 A8 WO02090605 A8 WO 02090605A8
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
iron
bearing ores
alumina
precipitate
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/US2002/013960
Other languages
French (fr)
Other versions
WO2002090605A1 (en
Inventor
Robert J Barnett
Michael B Mezner
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.)
Goldendale Aluminum Co
Original Assignee
Goldendale Aluminum Co
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
Priority claimed from US09/847,205 external-priority patent/US6468483B2/en
Application filed by Goldendale Aluminum Co filed Critical Goldendale Aluminum Co
Publication of WO2002090605A1 publication Critical patent/WO2002090605A1/en
Anticipated expiration legal-status Critical
Publication of WO2002090605A8 publication Critical patent/WO2002090605A8/en
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
    • 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
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • 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
    • C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
    • 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
    • C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
    • C01F7/26—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts with sulfuric acids or sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • 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
    • C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
    • 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
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • 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)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

A method for processing alumina-bearing ores such as bauxite to recover iron, aluminum, silicon and titanium metal values therefrom the method comprising the steps of adding the alumina-bearing ores to a digester containing an acid to provide a mixture of acid and alumina-bearing ores and heating the mixture to dissolve soluble compounds of at least one of iron, aluminum, silicon and titanium to provide a digest containing dissolved salts of the soluble compounds and to provide a gas component. Thereafter, the digest is treated with water to dissolve water soluble salts therein to provide a slurry comprised of a liquid containing water and the dissolved soluble salts and a solid component comprised of silica. The solid component is separated from the liquid and the pH of the liquid is adjusted to form an aluminate and an iron-containing precipitate. The iron-containing precipitate is separated from the liquid to provide an iron-depleted liquid whose pH is adjusted to precipitate aluminum trihydrate which is separated from the iron-depleted liquid to provide an aluminum trihydrate-depleted liquid. The pH of the aluminum trihydrate-depleted liquid is adjusted to form a precipitate comprised of at least one remaining salt in the aluminum trihydrate-depleted liquid to provide a salt-depleted liquid. The salt precipitate is separated from the salt-depleted liquid thereby recovering the metal values from the alumina-bearing ores.
PCT/US2002/013960 2001-05-03 2002-05-02 Acid digestion process for treating alumina-bearing ores to recover metal values therefrom Ceased WO2002090605A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/847,205 US6468483B2 (en) 2000-02-04 2001-05-03 Process for treating alumina-bearing ores to recover metal values therefrom
US09/847,205 2001-05-03

Publications (2)

Publication Number Publication Date
WO2002090605A1 WO2002090605A1 (en) 2002-11-14
WO2002090605A8 true WO2002090605A8 (en) 2004-05-13

Family

ID=25300057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/013960 Ceased WO2002090605A1 (en) 2001-05-03 2002-05-02 Acid digestion process for treating alumina-bearing ores to recover metal values therefrom

Country Status (1)

Country Link
WO (1) WO2002090605A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102589940A (en) * 2011-01-14 2012-07-18 核工业二一六大队 Dissolving method of fluoritized phenacite and bertrandite
CN102515223B (en) * 2011-12-09 2014-10-15 沈阳工业大学 Method for efficient and comprehensive utilization of high-iron bauxite
CN102674477A (en) * 2012-05-24 2012-09-19 西安建筑科技大学 Method for co-production of superfine ferroferric oxide and aluminum oxide by red mud of Bayer process
CN104340998A (en) * 2013-07-24 2015-02-11 沈阳铝镁设计研究院有限公司 A comprehensive utilization method for low-grade bauxite
CN104340995B (en) * 2013-07-24 2016-05-11 沈阳铝镁设计研究院有限公司 A kind of method of red mud comprehensive utilization
CN104340994B (en) * 2013-07-24 2016-05-11 沈阳铝镁设计研究院有限公司 A kind of method of CFBB total utilization of PCA
CN104340996B (en) * 2013-07-24 2016-06-22 沈阳铝镁设计研究院有限公司 A kind of method of high-iron bauxite comprehensive utilization
JP7593643B2 (en) 2019-01-16 2024-12-03 マサチューセッツ インスティテュート オブ テクノロジー Reaction schemes involving acids and bases, reactors containing spatially varying chemical composition gradients, and related systems and methods
US20220145477A1 (en) 2019-03-14 2022-05-12 Massachusetts Institute Of Technology Chemical reaction devices involving acid and/or base, and related systems and methods
CN110093514A (en) * 2019-05-07 2019-08-06 郑州大学 A kind of method of high-iron bauxite iron aluminium comprehensive utilization of separation
WO2022204059A1 (en) 2021-03-22 2022-09-29 Sublime Systems, Inc. Decarbonized cement blends

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2653762C3 (en) * 1976-11-26 1979-06-28 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Process for processing red mud
SE419212B (en) * 1979-04-11 1981-07-20 Boliden Ab PROCEDURE FOR PREPARING AN ALUMINUM SULPHATE SOLUTION
US5723097A (en) * 1995-12-08 1998-03-03 Goldendale Aluminum Company Method of treating spent potliner material from aluminum reduction cells
US5997828A (en) * 1998-09-30 1999-12-07 Rendall; John S. Process for production of alumina from ore bodies containing aluminum

Also Published As

Publication number Publication date
WO2002090605A1 (en) 2002-11-14

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