BR9305905A - Aperfeiçoamentos em plantas de alumina - Google Patents

Aperfeiçoamentos em plantas de alumina

Info

Publication number
BR9305905A
BR9305905A BR9305905A BR9305905A BR9305905A BR 9305905 A BR9305905 A BR 9305905A BR 9305905 A BR9305905 A BR 9305905A BR 9305905 A BR9305905 A BR 9305905A BR 9305905 A BR9305905 A BR 9305905A
Authority
BR
Brazil
Prior art keywords
alumina plants
alumina
plants
Prior art date
Application number
BR9305905A
Other languages
English (en)
Inventor
Gregory Patrick Brown
David Graham Wood
Original Assignee
Comalco Alu
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 Comalco Alu filed Critical Comalco Alu
Publication of BR9305905A publication Critical patent/BR9305905A/pt

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
    • C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
    • 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)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
BR9305905A 1992-02-19 1993-02-18 Aperfeiçoamentos em plantas de alumina BR9305905A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL097792 1992-02-19
PCT/AU1993/000071 WO1993016957A1 (en) 1992-02-19 1993-02-18 Improvements in alumina plants

Publications (1)

Publication Number Publication Date
BR9305905A true BR9305905A (pt) 1997-10-21

Family

ID=3776001

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9305905A BR9305905A (pt) 1992-02-19 1993-02-18 Aperfeiçoamentos em plantas de alumina

Country Status (8)

Country Link
US (1) US5529761A (pt)
EP (1) EP0626930B1 (pt)
KR (1) KR950700218A (pt)
BR (1) BR9305905A (pt)
CA (1) CA2130579C (pt)
DE (1) DE69324908T2 (pt)
ES (1) ES2133388T3 (pt)
WO (1) WO1993016957A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709302B1 (fr) * 1993-08-26 1995-09-22 Pechiney Aluminium Procédé de fabrication de trihydrate d'alumine à teneur en sodium et granulométrie réglées.
CA2163826C (en) * 1994-11-30 2006-03-14 Iwan Dilip Kumar Hiralal Process for the precipitation of aluminum trihydroxide from a supersaturated sodium aluminate solution
US6217622B1 (en) * 1998-10-22 2001-04-17 Alcan International Limited Method and apparatus for precipitating and classifying solids in high concentrations
US6589908B1 (en) * 2000-11-28 2003-07-08 Shell Oil Company Method of making alumina having bimodal pore structure, and catalysts made therefrom

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201199A (en) * 1962-03-06 1965-08-17 Aluminum Lab Ltd Method of producing low soda content alumina
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
US3649184A (en) * 1969-05-29 1972-03-14 Reynolds Metals Co Precipitation of alumina hydrate
US4014985A (en) * 1975-12-22 1977-03-29 Aluminum Company Of America Precipitation of aluminum oxide having low sodium oxide content
CH644332A5 (de) * 1978-11-07 1984-07-31 Alusuisse Verfahren zur herstellung von grobem aluminiumhydroxid.
JPS5951489B2 (ja) * 1979-08-13 1984-12-14 住友アルミニウム製錬株式会社 粗大粒子水酸化アルミニウムの製造方法
US4305913A (en) * 1980-08-06 1981-12-15 Kaiser Aluminum & Chemical Corporation Alumina hydrate production from Bayer liquor by seeding
JPS57140316A (en) * 1981-02-20 1982-08-30 Sumitomo Alum Smelt Co Ltd Manufacture of coarse granular aluminum hydroxide
EP0102403B1 (de) * 1982-09-02 1986-03-05 Alcoa Chemie GmbH Verbessertes Verfahren zur Gewinnung von Tonerde
AU9177082A (en) * 1982-12-22 1984-06-28 Alcoa Chemie G.M.B.H. Recovery of alumina
FR2551429B2 (fr) * 1983-09-05 1985-10-18 Pechiney Aluminium Procede de production d'un trihydroxyde d'aluminium de granulometrie grosse et reguliere
US4511542A (en) * 1984-05-24 1985-04-16 Kaiser Aluminum & Chemical Corporation Bayer process production of alumina hydrate
FR2573414B1 (fr) * 1984-11-22 1989-12-01 Pechiney Aluminium Procede de mise en oeuvre d'un amorcage en deux temps pour l'obtention d'alumine a gros grains

Also Published As

Publication number Publication date
CA2130579A1 (en) 1993-09-02
EP0626930A1 (en) 1994-12-07
CA2130579C (en) 2000-09-05
DE69324908D1 (de) 1999-06-17
KR950700218A (ko) 1995-01-16
DE69324908T2 (de) 2000-01-13
US5529761A (en) 1996-06-25
WO1993016957A1 (en) 1993-09-02
EP0626930B1 (en) 1999-05-12
EP0626930A4 (en) 1995-09-27
ES2133388T3 (es) 1999-09-16

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 18/02/2013