FR2440916A1 - Procede de production d'un hydroxyde d'aluminium a gros grains - Google Patents

Procede de production d'un hydroxyde d'aluminium a gros grains

Info

Publication number
FR2440916A1
FR2440916A1 FR7927487A FR7927487A FR2440916A1 FR 2440916 A1 FR2440916 A1 FR 2440916A1 FR 7927487 A FR7927487 A FR 7927487A FR 7927487 A FR7927487 A FR 7927487A FR 2440916 A1 FR2440916 A1 FR 2440916A1
Authority
FR
France
Prior art keywords
phase
aluminum hydroxide
primer
processes
decomposition
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.)
Granted
Application number
FR7927487A
Other languages
English (en)
Other versions
FR2440916B1 (fr
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
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 Alusuisse Holdings AG filed Critical Alusuisse Holdings AG
Publication of FR2440916A1 publication Critical patent/FR2440916A1/fr
Application granted granted Critical
Publication of FR2440916B1 publication Critical patent/FR2440916B1/fr
Granted 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
    • 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
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area

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)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Abstract

PROCEDE DE FABRICATION D'UN HYDROXYDE D'ALUMINIUM CONTENANT AU MAXIMUM 15 PONDERAUX DE PARTICULES DE GROSSEUR INFERIEURE A 45MM ET AYANT UNE PRODUCTIVITE SPECIFIQUE ELEVEE, POUVANT ETRE SUPERIEURE A 60G DE ALO EQUIVALENT, PRECIPITE PAR LITRE DE LESSIVE D'ALUMINATE. CE PROCEDE CONSISTE EN UNE DECOMPOSITION EN DEUX PHASES (PHASE D'AGGLOMERATION ET PHASE DE CROISSANCE DES CRISTAUX); CHAQUE PHASE A LIEU DANS DES DOMAINES DE TEMPERATURE DEFINIS, AVEC DES AMORCES DE QUALITE DIFFERENTE. LA PREMIERE AMORCE, DE GRANULOMETRIE PLUS FINE, EST AJOUTEE AU DEBUT DE LA DECOMPOSITION, EN QUANTITE TELLE QUE LE RAPPORT ENTRE LA SURSATURATION DE LA SOLUTION D'ALUMINATE ET LA SURFACE DE LADITE AMORCE SOIT COMPRIS ENTRE 7 ET 25GM. CE PROCEDE REUNIT LES AVANTAGES DES PROCEDES DU TYPE DIT EUROPEEN A CEUX DES PROCEDES DU TYPE DIT AMERICAIN.
FR7927487A 1978-11-07 1979-11-07 Procede de production d'un hydroxyde d'aluminium a gros grains Granted FR2440916A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1142878A CH644332A5 (de) 1978-11-07 1978-11-07 Verfahren zur herstellung von grobem aluminiumhydroxid.

Publications (2)

Publication Number Publication Date
FR2440916A1 true FR2440916A1 (fr) 1980-06-06
FR2440916B1 FR2440916B1 (fr) 1984-05-25

Family

ID=4373391

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927487A Granted FR2440916A1 (fr) 1978-11-07 1979-11-07 Procede de production d'un hydroxyde d'aluminium a gros grains

Country Status (23)

Country Link
US (1) US4234559A (fr)
JP (1) JPS5571624A (fr)
AU (1) AU527500B2 (fr)
BR (1) BR7907183A (fr)
CA (1) CA1111624A (fr)
CH (1) CH644332A5 (fr)
CS (1) CS242851B2 (fr)
DD (1) DD147090A5 (fr)
DE (1) DE2941335C2 (fr)
ES (1) ES485553A1 (fr)
FR (1) FR2440916A1 (fr)
GB (1) GB2034681B (fr)
GR (1) GR66662B (fr)
HU (1) HU184525B (fr)
IE (1) IE49108B1 (fr)
IN (1) IN151768B (fr)
IT (1) IT1127201B (fr)
MY (1) MY8400318A (fr)
NL (1) NL7908153A (fr)
RO (1) RO78670A (fr)
SG (1) SG45183G (fr)
TR (1) TR21679A (fr)
YU (1) YU40765B (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3131088C2 (de) * 1981-08-06 1984-11-29 Vereinigte Aluminium-Werke AG, 1000 Berlin und 5300 Bonn Verfahren zur Herstellung von Aluminiumhydroxid
DE3219288C1 (de) * 1982-05-22 1983-06-01 Vereinigte Aluminium-Werke Ag, 5300 Bonn Verfahren zur Herstellung von grobem Aluminiumhydroxid
FR2529877A1 (fr) * 1982-07-08 1984-01-13 Pechiney Aluminium Procede de production d'un trihydroxyde d'aluminium de grosse granulometrie
EP0102403B1 (fr) * 1982-09-02 1986-03-05 Alcoa Chemie GmbH Procédé de production d'alumine
FR2534898B1 (fr) * 1982-10-20 1985-07-19 Pechiney Aluminium Procede d'obtention de trihydroxyde d'aluminium de diametre median regle a la demande dans l'intervalle de 2 a 100 microns
FR2551429B2 (fr) * 1983-09-05 1985-10-18 Pechiney Aluminium Procede de production d'un trihydroxyde d'aluminium de granulometrie grosse et reguliere
JPS60246220A (ja) * 1984-05-19 1985-12-05 Showa Alum Ind Kk α線放射量の低いアルミナ水和物またはアルミナの製造方法
US4511542A (en) * 1984-05-24 1985-04-16 Kaiser Aluminum & Chemical Corporation Bayer process production of alumina hydrate
US4568527A (en) * 1984-11-06 1986-02-04 Kaiser Aluminum & Chemical Corporation Utilization of partially calcined alumina as precipitation aid in the Bayer process
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
US5306480A (en) * 1986-07-16 1994-04-26 Alcan International Limited Alumina hydrates
GB8617387D0 (en) * 1986-07-16 1986-08-20 Alcan Int Ltd Alumina hydrates
US4822593A (en) * 1986-12-11 1989-04-18 Aluminum Company Of America Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration
US4900537A (en) * 1986-12-11 1990-02-13 Biotage, Inc. Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration
US5385938B1 (en) * 1986-12-23 1997-07-15 Tristrata Inc Method of using glycolic acid for treating wrinkles
EP0344469A3 (fr) * 1988-06-03 1990-06-06 Vereinigte Aluminium-Werke Aktiengesellschaft Procédé pour la production d'agglomérats d'hydroxyde d'aluminium à gros grains
US5127950A (en) * 1989-09-14 1992-07-07 Lonza Ltd. Short-prismatic aluminum hydroxide, process for preparing same from supersaturated sodium aluminate-liquor, and compositions containing same
US5158577A (en) * 1990-02-14 1992-10-27 Alcan International Limited Process for precipitating alumina from Bayer process liquor
US5102426A (en) * 1990-02-14 1992-04-07 Alcan International Limited Process for precipitating alumina from bayer process liquor
US5163973A (en) * 1990-02-14 1992-11-17 Alcan Internatinal Limited Process for producing low soda alumina
BR9305905A (pt) * 1992-02-19 1997-10-21 Comalco Alu Aperfeiçoamentos em plantas de alumina
DE4231874A1 (de) * 1992-09-23 1994-03-24 Martinswerk Gmbh Verfahren zur Herstellung eines Aluminiumhydroxids Al(OH)¶3¶ mit abgerundeter Kornoberfläche
ES2137447T3 (es) * 1994-11-30 1999-12-16 Billiton Intellectual Pty Procedimiento para la precipitacion de hidroxido de aluminio a partir de una solucion de aluminato de sodio supersaturado.
EP0714852B1 (fr) 1994-11-30 1999-08-18 Billiton Intellectual Property B.V. Procédé pour la précipitation d'hydroxide d'aluminium à partir d'une solution d'aluminat de sodium supersaturé
FR2782710B1 (fr) * 1998-09-02 2000-10-06 Pechiney Aluminium Procede de controle granulometrique dans une chaine de decomposition du circuit bayer, incluant une phase d'agglomeration
DE69836962T2 (de) * 1998-10-28 2007-11-15 Alcan Technology & Management Ag Verfahren zur Herstellung von grobkörnigem Aluminiumhydroxyd
US6762556B2 (en) 2001-02-27 2004-07-13 Winsor Corporation Open chamber photoluminescent lamp
JP5285317B2 (ja) * 2008-03-28 2013-09-11 住友化学株式会社 水酸化アルミニウムの製造方法
RU2638847C1 (ru) * 2016-12-29 2017-12-18 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" Способ получения гидроксида алюминия
CN113371742A (zh) * 2021-05-27 2021-09-10 中铝山西新材料有限公司 一种超细氢氧化铝的工业生产方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657978A (en) * 1948-09-08 1953-11-03 Kaiser Aluminium Chem Corp Alumina hydrate crystallization
US2707669A (en) * 1951-02-06 1955-05-03 Kaiser Aluminium Chem Corp Alumina production
FR1391596A (fr) * 1964-05-04 1965-03-05 Aluminium Lab Ltd Procédé de préparation du trihydrate d'alumine
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
US3906084A (en) * 1971-09-21 1975-09-16 Alcan Res & Dev Precipitation of alumina trihydrate from bayer pregnant liquors

Also Published As

Publication number Publication date
SG45183G (en) 1984-02-17
NL7908153A (nl) 1980-05-09
GB2034681B (en) 1982-08-11
AU5223479A (en) 1980-05-15
DD147090A5 (de) 1981-03-18
IN151768B (fr) 1983-07-23
CH644332A5 (de) 1984-07-31
CS242851B2 (en) 1986-05-15
DE2941335C2 (de) 1982-06-24
ES485553A1 (es) 1980-07-01
JPS5571624A (en) 1980-05-29
YU40765B (en) 1986-06-30
HU184525B (en) 1984-09-28
CA1111624A (fr) 1981-11-03
IT1127201B (it) 1986-05-21
GR66662B (fr) 1981-04-07
YU271579A (en) 1982-10-31
IE792134L (en) 1980-05-07
AU527500B2 (en) 1983-03-10
US4234559A (en) 1980-11-18
FR2440916B1 (fr) 1984-05-25
GB2034681A (en) 1980-06-11
IT7927105A0 (it) 1979-11-07
TR21679A (tr) 1985-01-29
RO78670A (fr) 1982-08-17
DE2941335A1 (de) 1980-05-14
IE49108B1 (en) 1985-08-07
BR7907183A (pt) 1980-07-08
MY8400318A (en) 1984-12-31

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