BR9106066A - Processo para a precipitacao de hidroxido de aluminio a partir de licor de processo de bayer - Google Patents

Processo para a precipitacao de hidroxido de aluminio a partir de licor de processo de bayer

Info

Publication number
BR9106066A
BR9106066A BR919106066A BR9106066A BR9106066A BR 9106066 A BR9106066 A BR 9106066A BR 919106066 A BR919106066 A BR 919106066A BR 9106066 A BR9106066 A BR 9106066A BR 9106066 A BR9106066 A BR 9106066A
Authority
BR
Brazil
Prior art keywords
precipitation
aluminum hydroxide
liquor
bayer
bayer process
Prior art date
Application number
BR919106066A
Other languages
English (en)
Inventor
Bryan Arthur Hiscox
Charles Douglas Ellis
Jacques Emile Larocque
Denis Renald Audet
Original Assignee
Alcan Int 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 Alcan Int Ltd filed Critical Alcan Int Ltd
Publication of BR9106066A publication Critical patent/BR9106066A/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
    • 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)
  • Paper (AREA)
  • Fertilizers (AREA)
BR919106066A 1990-02-14 1991-02-11 Processo para a precipitacao de hidroxido de aluminio a partir de licor de processo de bayer BR9106066A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/480,059 US5102426A (en) 1990-02-14 1990-02-14 Process for precipitating alumina from bayer process liquor
PCT/CA1991/000043 WO1991012205A1 (en) 1990-02-14 1991-02-11 Process for the precipitating of aluminium hydroxide from bayer process liquor

Publications (1)

Publication Number Publication Date
BR9106066A true BR9106066A (pt) 1993-01-19

Family

ID=23906510

Family Applications (1)

Application Number Title Priority Date Filing Date
BR919106066A BR9106066A (pt) 1990-02-14 1991-02-11 Processo para a precipitacao de hidroxido de aluminio a partir de licor de processo de bayer

Country Status (7)

Country Link
US (1) US5102426A (pt)
EP (1) EP0515407B1 (pt)
AU (1) AU635821B2 (pt)
BR (1) BR9106066A (pt)
ES (1) ES2054490T3 (pt)
IE (1) IE64939B1 (pt)
WO (1) WO1991012205A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163973A (en) * 1990-02-14 1992-11-17 Alcan Internatinal Limited Process for producing low soda alumina
US5342485A (en) * 1992-08-05 1994-08-30 Reynolds Metals Company Process for preparing ultra-white alumina trihydrate
EP0714852B1 (en) 1994-11-30 1999-08-18 Billiton Intellectual Property B.V. Process for the precipitation of aluminum trihydroxide from a supersaturated sodium aluminate solution
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
DE69836962T2 (de) 1998-10-28 2007-11-15 Alcan Technology & Management Ag Verfahren zur Herstellung von grobkörnigem Aluminiumhydroxyd
RU2721702C1 (ru) * 2019-08-22 2020-05-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Красноярский государственный аграрный университет" Способ очистки отходящих газов от печей спекания глиноземного производства

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707669A (en) * 1951-02-06 1955-05-03 Kaiser Aluminium Chem Corp Alumina production
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
JPS5344920B2 (pt) * 1972-05-08 1978-12-02
JPS5456999A (en) * 1977-10-17 1979-05-08 Nippon Light Metal Co Preparation of crude alumina particles
JPS5551720A (en) * 1978-10-06 1980-04-15 Nippon Light Metal Co Ltd Manufacture of coarse grain aluminum hydroxide
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
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
EP0515407A1 (en) 1992-12-02
EP0515407B1 (en) 1994-06-01
ES2054490T3 (es) 1994-08-01
WO1991012205A1 (en) 1991-08-22
AU635821B2 (en) 1993-04-01
AU7228591A (en) 1991-09-03
IE910470A1 (en) 1991-08-14
IE64939B1 (en) 1996-09-20
US5102426A (en) 1992-04-07

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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
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 11/02/2011