GB1204775A - Process of preparing alumina from bauxite - Google Patents

Process of preparing alumina from bauxite

Info

Publication number
GB1204775A
GB1204775A GB20310/68A GB2031068A GB1204775A GB 1204775 A GB1204775 A GB 1204775A GB 20310/68 A GB20310/68 A GB 20310/68A GB 2031068 A GB2031068 A GB 2031068A GB 1204775 A GB1204775 A GB 1204775A
Authority
GB
United Kingdom
Prior art keywords
alumina
bauxite
polymer
red mud
aluminate solution
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.)
Expired
Application number
GB20310/68A
Inventor
Frederick James Sibert
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.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Priority to GB20310/68A priority Critical patent/GB1204775A/en
Publication of GB1204775A publication Critical patent/GB1204775A/en
Expired 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
    • C01F7/06—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
    • C01F7/0646—Separation of the insoluble residue, e.g. of red mud
    • C01F7/0653—Separation of the insoluble residue, e.g. of red mud characterised by the flocculant added to the slurry

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treatment Of Sludge (AREA)

Abstract

1,204,775. Alumina. NALCO CHEMICAL CO. 29 April, 1968, No. 20310/68. Heading C1A. Alumina is produced from bauxite by digesting the bauxite in aqueous solution at an elevated temperature with a strong base to dissolve the alumina, and separating the aluminate solution from water-insoluble impurities (red mud) by adding to the digested bauxite between 0.001 and 10 pounds per U.S. ton of wet red mud of an active ingredient which consists of a polymer having a molecular weight of at least 50,000 and containing at least 80% recurring units selected from acrylic acid and its salts, and precipitating alumina from the aluminate solution. The polymer may be a copolymer or interpolymer with, e.g., a monomer comprising an ethylenically unsaturated polymerizable compound containing a hydrophilic group, of which a number is listed.
GB20310/68A 1968-04-29 1968-04-29 Process of preparing alumina from bauxite Expired GB1204775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20310/68A GB1204775A (en) 1968-04-29 1968-04-29 Process of preparing alumina from bauxite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20310/68A GB1204775A (en) 1968-04-29 1968-04-29 Process of preparing alumina from bauxite

Publications (1)

Publication Number Publication Date
GB1204775A true GB1204775A (en) 1970-09-09

Family

ID=10143865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20310/68A Expired GB1204775A (en) 1968-04-29 1968-04-29 Process of preparing alumina from bauxite

Country Status (1)

Country Link
GB (1) GB1204775A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2086884A2 (en) * 2006-11-09 2009-08-12 Nalco Company Improving the transfer of slurry in a bayer process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2086884A2 (en) * 2006-11-09 2009-08-12 Nalco Company Improving the transfer of slurry in a bayer process
EP2086884A4 (en) * 2006-11-09 2012-03-28 Nalco Co Improving the transfer of slurry in a bayer process

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee