NL8402664A - Werkwijze voor de bereiding van een aluminiumtrihydroxyde met een grote en regelmatige korrelgrootte. - Google Patents

Werkwijze voor de bereiding van een aluminiumtrihydroxyde met een grote en regelmatige korrelgrootte. Download PDF

Info

Publication number
NL8402664A
NL8402664A NL8402664A NL8402664A NL8402664A NL 8402664 A NL8402664 A NL 8402664A NL 8402664 A NL8402664 A NL 8402664A NL 8402664 A NL8402664 A NL 8402664A NL 8402664 A NL8402664 A NL 8402664A
Authority
NL
Netherlands
Prior art keywords
zone
decomposition
process according
suspension
stage
Prior art date
Application number
NL8402664A
Other languages
English (en)
Dutch (nl)
Original Assignee
Pechiney Aluminium
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9292048&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NL8402664(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pechiney Aluminium filed Critical Pechiney Aluminium
Publication of NL8402664A publication Critical patent/NL8402664A/nl

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

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)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Compositions Of Oxide Ceramics (AREA)
NL8402664A 1983-09-05 1984-08-31 Werkwijze voor de bereiding van een aluminiumtrihydroxyde met een grote en regelmatige korrelgrootte. NL8402664A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8314294A FR2551429B2 (fr) 1983-09-05 1983-09-05 Procede de production d'un trihydroxyde d'aluminium de granulometrie grosse et reguliere
FR8314294 1983-09-05

Publications (1)

Publication Number Publication Date
NL8402664A true NL8402664A (nl) 1985-04-01

Family

ID=9292048

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8402664A NL8402664A (nl) 1983-09-05 1984-08-31 Werkwijze voor de bereiding van een aluminiumtrihydroxyde met een grote en regelmatige korrelgrootte.

Country Status (20)

Country Link
US (1) US4614642A (de)
JP (1) JPS60502099A (de)
AU (1) AU568155B2 (de)
BR (1) BR8407055A (de)
CA (1) CA1252606A (de)
CH (1) CH662336A5 (de)
DE (1) DE3432473C3 (de)
ES (1) ES535629A0 (de)
FR (1) FR2551429B2 (de)
GB (1) GB2146012B (de)
GR (1) GR80280B (de)
HU (1) HU200572B (de)
IE (1) IE57701B1 (de)
IT (1) IT1178508B (de)
NL (1) NL8402664A (de)
NO (1) NO851239L (de)
PH (1) PH19829A (de)
WO (1) WO1985001040A1 (de)
YU (1) YU44877B (de)
ZA (1) ZA846926B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
FR2709302B1 (fr) * 1993-08-26 1995-09-22 Pechiney Aluminium Procédé de fabrication de trihydrate d'alumine à teneur en sodium et granulométrie réglées.
EP0859745A1 (de) * 1995-11-07 1998-08-26 Cytec Technology Corp. Reduzierung von verunreinigungen im durch das bayerverfahren hergestellten alumiumhydroxid
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
US20050126880A1 (en) * 2002-02-20 2005-06-16 Iannello Richard J. Counter/tabletop alignment note feeder
CN100383046C (zh) * 2005-07-18 2008-04-23 贵阳铝镁设计研究院 提高原矿浆固含的工艺方法
PE20131182A1 (es) 2010-08-13 2013-10-05 Rio Tinto Alcan Int Ltd Aparato y metodo para refinar un licor de proceso mediante sedimentacion por gravedad
CN110127737B (zh) * 2019-07-01 2023-09-19 济源职业技术学院 拜耳法氧化铝生产中防止种分周期性细化的装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653741A (en) * 1947-09-25 1951-05-23 Viggo Harms Improvements in and relating to a method and apparatus for precipitation of solids from solutions and the like
FR1311147A (fr) * 1961-05-06 1962-12-07 Electro Chimie Soc D Procédé de fabrication de l'alumine
NO135059C (de) * 1975-04-16 1977-02-02 Norsk Hydro As
DE2531646A1 (de) * 1975-07-15 1977-02-03 Ekato Werke Verfahren und vorrichtung zur herstellung von tonerde
GB1589012A (en) * 1977-11-15 1981-05-07 Atomenergi Inst For Processes for continuous crystallization
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
DE3131088C2 (de) * 1981-08-06 1984-11-29 Vereinigte Aluminium-Werke AG, 1000 Berlin und 5300 Bonn Verfahren zur Herstellung von Aluminiumhydroxid
FR2529877A1 (fr) * 1982-07-08 1984-01-13 Pechiney Aluminium Procede de production d'un trihydroxyde d'aluminium de grosse granulometrie
DE3269635D1 (en) * 1982-09-02 1986-04-10 Alcoa Chemie Gmbh Process for the production of alumine
US4511542A (en) * 1984-05-24 1985-04-16 Kaiser Aluminum & Chemical Corporation Bayer process production of alumina hydrate

Also Published As

Publication number Publication date
US4614642A (en) 1986-09-30
DE3432473C3 (de) 1998-02-12
IT8422498A0 (it) 1984-09-03
ES8505318A2 (es) 1985-05-16
WO1985001040A1 (fr) 1985-03-14
YU44877B (en) 1991-04-30
YU152084A (en) 1987-12-31
NO851239L (no) 1985-03-27
HU200572B (en) 1990-07-28
CH662336A5 (fr) 1987-09-30
GB2146012B (en) 1987-02-18
DE3432473A1 (de) 1985-03-21
IE842258L (en) 1985-03-05
GB8422339D0 (en) 1984-10-10
HUT36056A (en) 1985-08-28
PH19829A (en) 1986-07-14
ES535629A0 (es) 1985-05-16
DE3432473C2 (de) 1988-09-29
BR8407055A (pt) 1985-08-13
IT1178508B (it) 1987-09-09
GB2146012A (en) 1985-04-11
FR2551429A2 (fr) 1985-03-08
IE57701B1 (en) 1993-03-10
FR2551429B2 (fr) 1985-10-18
JPH0210088B2 (de) 1990-03-06
AU568155B2 (en) 1987-12-17
AU3390384A (en) 1985-03-29
GR80280B (en) 1984-09-13
JPS60502099A (ja) 1985-12-05
ZA846926B (en) 1985-04-24
CA1252606A (fr) 1989-04-18

Similar Documents

Publication Publication Date Title
NL8402664A (nl) Werkwijze voor de bereiding van een aluminiumtrihydroxyde met een grote en regelmatige korrelgrootte.
US4512959A (en) Method for the recovery of alumina
US4617179A (en) Process for effecting seeding in two phases for producing large-grain alumina
US4676959A (en) Bayer process for producing aluminum hydroxide having improved whiteness
AU660739B2 (en) Process for producing low soda alumina
US6599489B2 (en) Aluminum trihydrate crystals and improved method for the production thereof
US4201749A (en) Method for the separation of precipitated aluminum hydroxide from sodium aluminate solution
AU635821B2 (en) Process for precipitating of aluminium hydroxide from bayer process liquor
CA2108785C (en) Method for the control of sodium oxalate levels in sodium aluminate solutions
US5690700A (en) Process for the precipitation of aluminum trihydroxide from a supersaturated sodium aluminate solution
US5158577A (en) Process for precipitating alumina from Bayer process liquor
US6086834A (en) Process for the removal of silica from an alkaline solution containing sodium aluminate
JPH02291B2 (de)
SU1587001A1 (ru) Способ переработки сильвинитовой или карналлитовой руды
EP0714852B1 (de) Verfahren zur Ausfällung von Aluminiumhydroxid aus einer übersättigten Natriumaluminatlösung
RU2313490C1 (ru) Способ переработки бокситов
SK19893A3 (sk) Spôsob rozkladu hlinitanového roztoku
JPS603006B2 (ja) バイヤ−工程から有機物を除去する方法

Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed