AU5245386A - Process for the production of aluminium hydroxide with low content of impurities, especially of iron, and with high degree of whiteness - Google Patents

Process for the production of aluminium hydroxide with low content of impurities, especially of iron, and with high degree of whiteness

Info

Publication number
AU5245386A
AU5245386A AU52453/86A AU5245386A AU5245386A AU 5245386 A AU5245386 A AU 5245386A AU 52453/86 A AU52453/86 A AU 52453/86A AU 5245386 A AU5245386 A AU 5245386A AU 5245386 A AU5245386 A AU 5245386A
Authority
AU
Australia
Prior art keywords
whiteness
impurities
iron
production
high degree
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.)
Granted
Application number
AU52453/86A
Other versions
AU594035B2 (en
Inventor
Horst Dr. Pohland
Bernhard Dr. Schepers
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.)
Almatis Chemie GmbH
K+S AG
Original Assignee
Almatis Chemie GmbH
K+S AG
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 DE19853501350 external-priority patent/DE3501350A1/en
Priority claimed from DE19853545284 external-priority patent/DE3545284A1/en
Application filed by Almatis Chemie GmbH, K+S AG filed Critical Almatis Chemie GmbH
Publication of AU5245386A publication Critical patent/AU5245386A/en
Application granted granted Critical
Publication of AU594035B2 publication Critical patent/AU594035B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • C01F7/46—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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/62—L* (lightness axis)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Luminescent Compositions (AREA)
AU52453/86A 1985-01-17 1986-01-17 Process for the production of aluminium hydroxide with low content of impurities, especially of iron, and with high degree of whiteness Ceased AU594035B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19853501350 DE3501350A1 (en) 1985-01-17 1985-01-17 Process for preparing aluminium hydroxide having a low content of impurities, especially iron, and a high whiteness
DE3501350 1985-01-17
DE19853545284 DE3545284A1 (en) 1985-12-20 1985-12-20 Process for preparing aluminium hydroxide having a low content of impurities, especially of iron, and high whiteness
DE3545284 1985-12-20

Publications (2)

Publication Number Publication Date
AU5245386A true AU5245386A (en) 1986-07-24
AU594035B2 AU594035B2 (en) 1990-03-01

Family

ID=25828591

Family Applications (1)

Application Number Title Priority Date Filing Date
AU52453/86A Ceased AU594035B2 (en) 1985-01-17 1986-01-17 Process for the production of aluminium hydroxide with low content of impurities, especially of iron, and with high degree of whiteness

Country Status (2)

Country Link
EP (1) EP0188268A3 (en)
AU (1) AU594035B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU691716B2 (en) * 1994-12-22 1998-05-21 Aluminium Pechiney Method for the removal of iron from sodium aluminate liquors resulting from alkaline attack on alumina-monohydrate-containing bauxite
WO2002034673A1 (en) * 2000-10-27 2002-05-02 Nauveau Technology Investments Ltd Processes and compositions for water treatment

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU661486B2 (en) * 1991-07-19 1995-07-27 Particle Engineered Hydrates Pty Ltd Recovery of vanadium and aluminium values
CN1297480C (en) * 2002-03-05 2007-01-31 平顶山市汇源化学工业公司 Process for removing organics from sodium Bayer process aluminate solution
CA2672956C (en) 2006-10-26 2015-02-10 Amgen Inc. Calcium receptor modulating agents
WO2019227130A1 (en) * 2018-05-28 2019-12-05 Alcoa Of Australia Limited Method for impurity control
CA3100733A1 (en) * 2018-05-28 2019-12-05 Alcoa Of Australia Limited Method for controlling the concentration of impurities in bayer liquors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1489775A (en) * 1966-06-01 1967-07-28 Pechiney Prod Chimiques Sa Process for purifying sodium aluminate liquors
CA1044469A (en) * 1974-04-17 1978-12-19 Comalco Limited Production of bauxite and aluminium chloride of low iron content
DE2518431C3 (en) * 1975-04-25 1982-02-04 Giulini Chemie Gmbh, 6700 Ludwigshafen Process for the removal of harmful organic compounds from the aluminate liquor produced during the extraction of alumina according to the Bayer process
US4083925A (en) * 1976-03-22 1978-04-11 Martin Marietta Aluminum, Inc. Method for removing ferrous iron from alkali metal aluminate liquor
US4045234A (en) * 1976-08-23 1977-08-30 Kaiser Aluminum & Chemical Corporation Process for producing high density sintered alumina

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU691716B2 (en) * 1994-12-22 1998-05-21 Aluminium Pechiney Method for the removal of iron from sodium aluminate liquors resulting from alkaline attack on alumina-monohydrate-containing bauxite
WO2002034673A1 (en) * 2000-10-27 2002-05-02 Nauveau Technology Investments Ltd Processes and compositions for water treatment
US7077963B2 (en) 2000-10-27 2006-07-18 Nauveau Technology Investments Processes for water treatment

Also Published As

Publication number Publication date
AU594035B2 (en) 1990-03-01
EP0188268A3 (en) 1990-01-31
EP0188268A2 (en) 1986-07-23

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