BR112012027265A2 - process for recovering alumina values from a caustic aluminate solution - Google Patents

process for recovering alumina values from a caustic aluminate solution

Info

Publication number
BR112012027265A2
BR112012027265A2 BR112012027265A BR112012027265A BR112012027265A2 BR 112012027265 A2 BR112012027265 A2 BR 112012027265A2 BR 112012027265 A BR112012027265 A BR 112012027265A BR 112012027265 A BR112012027265 A BR 112012027265A BR 112012027265 A2 BR112012027265 A2 BR 112012027265A2
Authority
BR
Brazil
Prior art keywords
solution
treated stream
aluminate
alumina values
aluminate solution
Prior art date
Application number
BR112012027265A
Other languages
Portuguese (pt)
Inventor
Mark Roworth Daniel
Antoinette Jozef Marie Boom Eric
Original Assignee
Bhp Billiton Worsley Alumina Pty 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 AU2010901879A external-priority patent/AU2010901879A0/en
Application filed by Bhp Billiton Worsley Alumina Pty Ltd filed Critical Bhp Billiton Worsley Alumina Pty Ltd
Publication of BR112012027265A2 publication Critical patent/BR112012027265A2/en

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
    • C01F7/141—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent
    • C01F7/142—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent with carbon dioxide
    • 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
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

um processo apara recuperar valores de alumina a partir de uma soluçao de aluminato cáustico é divulgado. o processo compreende as estapas de: a) introduzir uma fonte de dióxido de carbono numa soluçao de aluminato para formar uma primeira corrente tratada compreendendo íons carbonato em solução e hidróxido de alumímio em forma sólida; b) submeter a primeira corrente tratada da etapa a) à separação sólida/líquida para recuperar valores de alumina na forma de hidróxido de alumínio e produzir uma primeira corrente tratada clarificada; e c) misturar a primeira corrente tratada clarificada da etapa b) com aluminato tricálcio para formar uma segunda corrente tratada compreendendo carbonato de cálcio em forma sólida, íons aluminato em solução e íons hidróxilos em solução.A process for recovering alumina values from a caustic aluminate solution is disclosed. The process comprises the steps of: (a) introducing a carbon dioxide source into an aluminate solution to form a first treated stream comprising carbonate ions in solution and solid aluminum hydroxide; b) subjecting the first treated stream from step a) to solid / liquid separation to recover alumina values in the form of aluminum hydroxide and producing a clarified first treated stream; and c) mixing the first clarified treated stream from step b) with tricalcium aluminate to form a second treated stream comprising solid calcium carbonate, aluminate ions in solution and hydroxyl ions in solution.

BR112012027265A 2010-05-03 2011-05-02 process for recovering alumina values from a caustic aluminate solution BR112012027265A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2010901879A AU2010901879A0 (en) 2010-05-03 Process for Recovery of Alumina
PCT/AU2011/000505 WO2011137481A1 (en) 2010-05-03 2011-05-02 Process for recovery of alumina using tricalcium aluminate

Publications (1)

Publication Number Publication Date
BR112012027265A2 true BR112012027265A2 (en) 2017-03-14

Family

ID=44903509

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012027265A BR112012027265A2 (en) 2010-05-03 2011-05-02 process for recovering alumina values from a caustic aluminate solution

Country Status (4)

Country Link
CN (1) CN103038174B (en)
AU (1) AU2011250647B2 (en)
BR (1) BR112012027265A2 (en)
WO (1) WO2011137481A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023133601A1 (en) * 2022-01-14 2023-07-20 Mytilineos S.A. Method for the production of aluminium hydroxide from bauxite

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB648248A (en) * 1941-06-14 1951-01-03 Jean Charles Seailles Method for making a water solution of raw aluminates of lime and its application to the manufacture of alumina
ATE502900T1 (en) * 1998-09-25 2011-04-15 Bhp Billiton Worsley Alumina Pty Ltd IMPROVED BAYER CAUSTIFICATION
CN1151968C (en) * 2000-06-28 2004-06-02 王立卓 Process for preparing soium aluminate solution with calcium aluminate clinker
GB0018592D0 (en) * 2000-07-29 2000-09-13 Univ Leeds Production of oxides of iron aluminium and titanium from bauxite and red mud
CN1473762A (en) * 2003-08-06 2004-02-11 姜树宽 Process for producing aluminium hydroxide using biological fermenting waste gas CO2
CN1562756A (en) * 2004-03-19 2005-01-12 邝中 Technique for extracting alumina from materiel containing calcium aluminate
CN101182022B (en) * 2007-12-11 2010-11-10 中国铝业股份有限公司 Preparation method of powder aluminum hydroxide
CN101186324A (en) * 2007-12-17 2008-05-28 中国铝业股份有限公司 Deep decomposition method for sodium aluminate solution
CN101450843B (en) * 2008-12-22 2012-01-11 广西投资集团有限公司 Iron and aluminum complex ore comprehensive utilization method

Also Published As

Publication number Publication date
CN103038174A (en) 2013-04-10
CN103038174B (en) 2015-04-15
AU2011250647A1 (en) 2012-11-08
WO2011137481A1 (en) 2011-11-10
AU2011250647B2 (en) 2013-11-07

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: SOUTH32 WORSLEY ALUMINA PTY LTD (AU)

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B11E Dismissal acc. art. 34 of ipl - requirements for examination incomplete
B11T Dismissal of application maintained [chapter 11.20 patent gazette]