DE69922558D1 - Herstellung von Aluminiumoxid - Google Patents

Herstellung von Aluminiumoxid

Info

Publication number
DE69922558D1
DE69922558D1 DE69922558T DE69922558T DE69922558D1 DE 69922558 D1 DE69922558 D1 DE 69922558D1 DE 69922558 T DE69922558 T DE 69922558T DE 69922558 T DE69922558 T DE 69922558T DE 69922558 D1 DE69922558 D1 DE 69922558D1
Authority
DE
Germany
Prior art keywords
alumina
production
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 - Fee Related
Application number
DE69922558T
Other languages
English (en)
Other versions
DE69922558T2 (de
Inventor
Roger Welton
Philip Mccoll
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.)
Ciba Specialty Chemicals Water Treatments Ltd
Original Assignee
Ciba Specialty Chemicals Water Treatments 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
Application filed by Ciba Specialty Chemicals Water Treatments Ltd filed Critical Ciba Specialty Chemicals Water Treatments Ltd
Publication of DE69922558D1 publication Critical patent/DE69922558D1/de
Application granted granted Critical
Publication of DE69922558T2 publication Critical patent/DE69922558T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C01F7/145—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 characterised by the use of a crystal growth modifying agent other than aluminium hydroxide seed
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DE69922558T 1998-01-15 1999-01-11 Herstellung von Aluminiumoxid Expired - Fee Related DE69922558T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9800855.0A GB9800855D0 (en) 1998-01-15 1998-01-15 Production of alumina
GB9800855 1998-01-15

Publications (2)

Publication Number Publication Date
DE69922558D1 true DE69922558D1 (de) 2005-01-20
DE69922558T2 DE69922558T2 (de) 2005-12-15

Family

ID=10825354

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69922558T Expired - Fee Related DE69922558T2 (de) 1998-01-15 1999-01-11 Herstellung von Aluminiumoxid

Country Status (8)

Country Link
US (1) US6168767B1 (de)
EP (1) EP0930270B1 (de)
AU (1) AU753253B2 (de)
BR (1) BR9900050A (de)
CA (1) CA2258399C (de)
DE (1) DE69922558T2 (de)
ES (1) ES2232979T3 (de)
GB (1) GB9800855D0 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6528028B2 (en) 1999-12-28 2003-03-04 Showa Denko K.K. Process for treating bauxite in which a desilication product and an insoluble residure are separately precipitated
DE10113294A1 (de) * 2001-03-16 2002-09-19 Stockhausen Chem Fab Gmbh Bildung von Aluminiumoxidhydrat-haltigen Kristallen aus kaustischen Mutterlaugen
US7976821B2 (en) * 2005-06-23 2011-07-12 Nalco Company Composition and method for improved aluminum hydroxide production
US7955589B2 (en) 2005-06-23 2011-06-07 Nalco Company Composition and method for improved aluminum hydroxide production
US7976820B2 (en) * 2005-06-23 2011-07-12 Nalco Company Composition and method for improved aluminum hydroxide production
US7771681B2 (en) * 2006-12-29 2010-08-10 Nalco Company Method for improved aluminum hydroxide production
US8282689B2 (en) * 2009-07-01 2012-10-09 Nalco Company Composition and method for enhancing the production of crystal agglomerates from a precipitation liquor
US8926939B2 (en) * 2013-03-13 2015-01-06 Ecolab Usa Inc. Neopolyols suitable for crystal growth modification in the Bayer process
US9592456B2 (en) * 2015-02-11 2017-03-14 Ecolab Usa Inc. Methods for enhancing production of aluminum hydroxide in an aluminum hydroxide production process
WO2016145018A1 (en) 2015-03-11 2016-09-15 Cytec Industries, Inc. Oil-free crystal growth modifiers for alumina recovery
US10427950B2 (en) 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737352A (en) * 1987-04-09 1988-04-12 Nalco Chemical Company Use of surfactants in alumina precipitation in the bayer process
EP0327660B1 (de) * 1988-02-11 1992-12-09 VAW Aluminium AG Verfahren zur Herstellung von Füllstoffen und Flammschutzmitteln auf der Basis von Aluminiumhydroxid in Form von Hydrargillit
AU633505B2 (en) * 1988-06-30 1993-02-04 Curtin University Of Technology Dewatering of alumina trihydrate filter cakes
DE4039053A1 (de) * 1990-12-07 1992-06-11 Henkel Kgaa Polyglycerine im bayer-prozess
US5167831A (en) * 1991-06-20 1992-12-01 Nalco Chemical Company Non-ionic surfactants plus fatty-acids as dewatering aids for alumina trihydrate
US5346511A (en) * 1993-03-12 1994-09-13 Nalco Chemical Company Antifoam/defoamer compositions for Bayer process
CA2126914A1 (en) * 1993-06-30 1994-12-31 Gillain Mary Moody Production of alumina

Also Published As

Publication number Publication date
ES2232979T3 (es) 2005-06-01
GB9800855D0 (en) 1998-03-11
EP0930270B1 (de) 2004-12-15
DE69922558T2 (de) 2005-12-15
EP0930270A1 (de) 1999-07-21
CA2258399A1 (en) 1999-07-15
BR9900050A (pt) 1999-12-28
CA2258399C (en) 2007-07-17
AU1129299A (en) 1999-08-05
AU753253B2 (en) 2002-10-10
US6168767B1 (en) 2001-01-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee