BR9402598A - Processo para produzir alumina - Google Patents

Processo para produzir alumina

Info

Publication number
BR9402598A
BR9402598A BR9402598A BR9402598A BR9402598A BR 9402598 A BR9402598 A BR 9402598A BR 9402598 A BR9402598 A BR 9402598A BR 9402598 A BR9402598 A BR 9402598A BR 9402598 A BR9402598 A BR 9402598A
Authority
BR
Brazil
Prior art keywords
producing alumina
alumina
producing
Prior art date
Application number
BR9402598A
Other languages
English (en)
Inventor
Gillian Mary Moody
Clive Happs
Original Assignee
Allied Colloids 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
Priority claimed from GB939313545A external-priority patent/GB9313545D0/en
Priority claimed from GB9400690A external-priority patent/GB9400690D0/en
Application filed by Allied Colloids Ltd filed Critical Allied Colloids Ltd
Publication of BR9402598A publication Critical patent/BR9402598A/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
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0613—Pretreatment of the minerals, e.g. grinding
    • 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
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
BR9402598A 1993-06-30 1994-06-30 Processo para produzir alumina BR9402598A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939313545A GB9313545D0 (en) 1993-06-30 1993-06-30 Production of alumina
GB9400690A GB9400690D0 (en) 1994-01-14 1994-01-14 Production of alumina

Publications (1)

Publication Number Publication Date
BR9402598A true BR9402598A (pt) 1995-03-28

Family

ID=26303152

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9402598A BR9402598A (pt) 1993-06-30 1994-06-30 Processo para produzir alumina

Country Status (4)

Country Link
US (1) US5547647A (pt)
AU (1) AU669445B2 (pt)
BR (1) BR9402598A (pt)
CA (1) CA2126885A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6293973B1 (en) 1996-10-11 2001-09-25 Nalco Chemical Company Method of controlling oxalate precipitation in bayer process liquor
WO2019161455A1 (en) * 2018-02-23 2019-08-29 Rio Tinto Alcan International Limited Bayer process
CN112752733B (zh) 2018-07-27 2023-12-08 索理思科技公司 用于氧化铝生产的***和方法
CN110169233A (zh) * 2019-04-17 2019-08-27 贺州学院 一种蔓性千斤拔丸化种子的制备方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US509309A (en) * 1893-11-21 Oiler
US465065A (en) * 1891-12-15 Egg-cell case
US3917529A (en) * 1974-07-01 1975-11-04 Nalco Chemical Co Process for the destabilization and separation of ilmenite (FEO TIO2) tailings
DE2518431C3 (de) * 1975-04-25 1982-02-04 Giulini Chemie Gmbh, 6700 Ludwigshafen Verfarhen zur Entfernung der schädlichen organischen Verbindungen aus der bei der Tonerdegewinnung nach dem Bayer-Verfarhen anfallenden Aluminatlauge
FR2328660A1 (fr) * 1975-10-21 1977-05-20 Pechiney Aluminium Perfectionnement a l'epuration de solutions en circulation dans le cycle bayer
JPS54110199A (en) * 1978-02-17 1979-08-29 Sumitomo Aluminium Smelting Co Method of removing organics from circulating aluminic acid alkali solution
US4275043A (en) * 1979-01-31 1981-06-23 Alcan Research And Development Limited Removal of oxalate from bayer process liquor
HU180650B (en) * 1979-10-30 1983-04-29 Magyar Aluminium Process for diminishing organic content of bayer cycle of alum earth production
US4275042A (en) * 1980-01-22 1981-06-23 Alcan Research And Development Limited Removal of oxalate from Bayer process liquor
US4519989A (en) * 1983-02-22 1985-05-28 Aluminum Company Of America Removal of organic contaminants from bauxite and other ores
US4578255A (en) * 1984-12-27 1986-03-25 Kaiser Aluminum Chemical Corporation Purification of Bayer process liquors
FR2581053B1 (fr) * 1985-04-30 1987-05-29 Pechiney Aluminium Production d'alumine a partir de bauxite a gibbsite a basse teneur en silice reactive
US5093092A (en) * 1991-02-28 1992-03-03 Aluminum Company Of America Purification of bayer process liquor with alumina coated with a layer or carbon
CA2126914A1 (en) * 1993-06-30 1994-12-31 Gillain Mary Moody Production of alumina

Also Published As

Publication number Publication date
US5547647A (en) 1996-08-20
AU669445B2 (en) 1996-06-06
AU6609494A (en) 1995-01-12
CA2126885A1 (en) 1994-12-31

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