EP0839118A4 - High yield precipitation process - Google Patents

High yield precipitation process

Info

Publication number
EP0839118A4
EP0839118A4 EP96922684A EP96922684A EP0839118A4 EP 0839118 A4 EP0839118 A4 EP 0839118A4 EP 96922684 A EP96922684 A EP 96922684A EP 96922684 A EP96922684 A EP 96922684A EP 0839118 A4 EP0839118 A4 EP 0839118A4
Authority
EP
European Patent Office
Prior art keywords
high yield
precipitation process
yield precipitation
yield
precipitation
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.)
Withdrawn
Application number
EP96922684A
Other languages
German (de)
French (fr)
Other versions
EP0839118A1 (en
Inventor
Gregory Patrick Brown
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.)
Rio Tinto Aluminium Ltd
Original Assignee
Comalco Aluminum 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
Priority claimed from AUPN4107A external-priority patent/AUPN410795A0/en
Priority claimed from AUPN4785A external-priority patent/AUPN478595A0/en
Application filed by Comalco Aluminum Ltd filed Critical Comalco Aluminum Ltd
Publication of EP0839118A1 publication Critical patent/EP0839118A1/en
Publication of EP0839118A4 publication Critical patent/EP0839118A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
EP96922684A 1995-07-11 1996-07-11 High yield precipitation process Withdrawn EP0839118A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPN4107A AUPN410795A0 (en) 1995-07-11 1995-07-11 High yield precipitation process
AUPN4107/95 1995-07-11
AUPN4785/95 1995-08-14
AUPN4785A AUPN478595A0 (en) 1995-08-14 1995-08-14 High yield precipitation process
PCT/AU1996/000435 WO1997003022A1 (en) 1995-07-11 1996-07-11 High yield precipitation process

Publications (2)

Publication Number Publication Date
EP0839118A1 EP0839118A1 (en) 1998-05-06
EP0839118A4 true EP0839118A4 (en) 1998-12-09

Family

ID=25644991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96922684A Withdrawn EP0839118A4 (en) 1995-07-11 1996-07-11 High yield precipitation process

Country Status (5)

Country Link
EP (1) EP0839118A4 (en)
KR (1) KR19990028922A (en)
BR (1) BR9609429A (en)
CA (1) CA2226842A1 (en)
WO (1) WO1997003022A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0808611A2 (en) * 2007-03-27 2014-08-05 Alcoa Australia "METHOD FOR PREPARING ALUMINUM OXIDE FROM A BAYER SOLUTION"
WO2018194397A1 (en) * 2017-04-19 2018-10-25 한국지질자원연구원 Method for smelting ilmenite using red mud
CN113608506B (en) * 2021-06-18 2022-10-25 东北大学 Intelligent detection device for alumina operation index

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616182A1 (en) * 1975-04-16 1976-10-28 Norsk Hydro As PROCESS FOR THE PRODUCTION OF ALUMINUM OXIDE
US4732742A (en) * 1985-12-17 1988-03-22 Aluminum Pechiney Process for the production at a high level of productivity of aluminum trihydroxide in a high state of purity and with a median diameter of less than 4 micrometers, which is regulated as required

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486850A (en) * 1967-02-16 1969-12-30 Kaiser Aluminium Chem Corp Flash cooling of liquor during the continuous precipitation of alumina hydrate from bayer process liquor
US4051222A (en) * 1971-09-21 1977-09-27 Alcan Research And Development Limited Coarsening of partially calcined alumina dust
US4305913A (en) * 1980-08-06 1981-12-15 Kaiser Aluminum & Chemical Corporation Alumina hydrate production from Bayer liquor by seeding
HU201276B (en) * 1988-10-27 1990-10-28 Magyar Aluminium Process for producing alum earth from bauxite containing gibbsite
FR2712275B1 (en) * 1993-11-09 1995-12-15 Pechiney Aluminium Process for the treatment of bauxites containing a mixture of alumina trihydrate and alumina monohydrate.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616182A1 (en) * 1975-04-16 1976-10-28 Norsk Hydro As PROCESS FOR THE PRODUCTION OF ALUMINUM OXIDE
US4732742A (en) * 1985-12-17 1988-03-22 Aluminum Pechiney Process for the production at a high level of productivity of aluminum trihydroxide in a high state of purity and with a median diameter of less than 4 micrometers, which is regulated as required

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9703022A1 *

Also Published As

Publication number Publication date
KR19990028922A (en) 1999-04-15
BR9609429A (en) 2000-04-25
WO1997003022A1 (en) 1997-01-30
EP0839118A1 (en) 1998-05-06
CA2226842A1 (en) 1997-01-30

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19980114

AK Designated contracting states

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Designated state(s): ES IE

A4 Supplementary search report drawn up and despatched

Effective date: 19981022

AK Designated contracting states

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17Q First examination report despatched

Effective date: 19990210

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 20001020