IT8123200A0 - Produzione di idrato di allumina. - Google Patents

Produzione di idrato di allumina.

Info

Publication number
IT8123200A0
IT8123200A0 IT8123200A IT2320081A IT8123200A0 IT 8123200 A0 IT8123200 A0 IT 8123200A0 IT 8123200 A IT8123200 A IT 8123200A IT 2320081 A IT2320081 A IT 2320081A IT 8123200 A0 IT8123200 A0 IT 8123200A0
Authority
IT
Italy
Prior art keywords
production
alumina hydrate
hydrate
alumina
Prior art date
Application number
IT8123200A
Other languages
English (en)
Other versions
IT1138121B (it
Inventor
Joseph Louis Anjier
Original Assignee
Kaiser Aluminium Chem Corp
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 Kaiser Aluminium Chem Corp filed Critical Kaiser Aluminium Chem Corp
Publication of IT8123200A0 publication Critical patent/IT8123200A0/it
Application granted granted Critical
Publication of IT1138121B publication Critical patent/IT1138121B/it

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
    • C01P2004/50—Agglomerated particles

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)
IT23200/81A 1980-08-06 1981-07-28 Produzione di idrato di allumina IT1138121B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/175,816 US4305913A (en) 1980-08-06 1980-08-06 Alumina hydrate production from Bayer liquor by seeding

Publications (2)

Publication Number Publication Date
IT8123200A0 true IT8123200A0 (it) 1981-07-28
IT1138121B IT1138121B (it) 1986-09-17

Family

ID=22641751

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23200/81A IT1138121B (it) 1980-08-06 1981-07-28 Produzione di idrato di allumina

Country Status (3)

Country Link
US (1) US4305913A (it)
AU (1) AU541977B2 (it)
IT (1) IT1138121B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140316A (en) * 1981-02-20 1982-08-30 Sumitomo Alum Smelt Co Ltd Manufacture of coarse granular aluminum hydroxide
DE3269635D1 (en) * 1982-09-02 1986-04-10 Alcoa Chemie Gmbh Process for the production of alumine
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
US4595581A (en) * 1984-12-10 1986-06-17 Aluminum Company Of America Boehmite production by precipitation from sodium aluminate solution at elevated temperatures
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
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
EP0344469A3 (de) * 1988-06-03 1990-06-06 Vereinigte Aluminium-Werke Aktiengesellschaft Verfahren zur Herstellung von grobkörnigen Agglomeraten des Aluminiumhydroxids
US5102426A (en) * 1990-02-14 1992-04-07 Alcan International Limited Process for precipitating alumina from bayer process liquor
US5158577A (en) * 1990-02-14 1992-10-27 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
ES2133388T3 (es) * 1992-02-19 1999-09-16 Comalco Alu Mejoras en plantas de alumina.
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 (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
EP0839118A4 (en) * 1995-07-11 1998-12-09 Comalco Alu HIGH YIELD PRECIPITATION PROCESS
AU697413B2 (en) * 1995-07-11 1998-10-08 Comalco Aluminium Limited High yield precipitation process
US6217622B1 (en) * 1998-10-22 2001-04-17 Alcan International Limited Method and apparatus for precipitating and classifying solids in high concentrations
CN100398445C (zh) * 2006-09-11 2008-07-02 中国铝业股份有限公司 两种浓度精液生产高强度氧化铝的方法
US8329072B2 (en) 2010-11-24 2012-12-11 Brimrock International Inc. Method and system for generating sulfur seeds and granules

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1943786A (en) * 1930-10-10 1934-01-16 Electrie Smelting & Alnminum C Process of separating alumina from alkali metal aluminate solutions
FR1525133A (fr) * 1967-02-17 1968-05-17 Pechiney Prod Chimiques Sa Procédé de fabrication industrielle de trihydrate d'alumine
US3649184A (en) * 1969-05-29 1972-03-14 Reynolds Metals Co Precipitation of alumina hydrate
AU468717B2 (en) * 1971-09-16 1974-03-28 Process and equipment for seed regeneration in the decomposition procedure of the technology of alumina production
NO135059C (it) * 1975-04-16 1977-02-02 Norsk Hydro As
US4014985A (en) * 1975-12-22 1977-03-29 Aluminum Company Of America Precipitation of aluminum oxide having low sodium oxide content
JPS5456999A (en) * 1977-10-17 1979-05-08 Nippon Light Metal Co Preparation of crude alumina particles
CH644332A5 (de) * 1978-11-07 1984-07-31 Alusuisse Verfahren zur herstellung von grobem aluminiumhydroxid.

Also Published As

Publication number Publication date
AU541977B2 (en) 1985-01-31
AU7509581A (en) 1983-03-17
US4305913A (en) 1981-12-15
IT1138121B (it) 1986-09-17

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970728