DE60001507D1 - Verfahren zur reinigung von natriumoxalat enthaltende natriumaluminatlösungen mit verwertung von rückständen - Google Patents

Verfahren zur reinigung von natriumoxalat enthaltende natriumaluminatlösungen mit verwertung von rückständen

Info

Publication number
DE60001507D1
DE60001507D1 DE60001507T DE60001507T DE60001507D1 DE 60001507 D1 DE60001507 D1 DE 60001507D1 DE 60001507 T DE60001507 T DE 60001507T DE 60001507 T DE60001507 T DE 60001507T DE 60001507 D1 DE60001507 D1 DE 60001507D1
Authority
DE
Germany
Prior art keywords
solutions containing
cleaning
aluminate solutions
oxalate
sodium aluminate
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 - Lifetime
Application number
DE60001507T
Other languages
English (en)
Other versions
DE60001507T2 (de
Inventor
Philippe Clerin
Benoit Cristol
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Publication of DE60001507D1 publication Critical patent/DE60001507D1/de
Application granted granted Critical
Publication of DE60001507T2 publication Critical patent/DE60001507T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate
    • 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

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)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DE60001507T 1999-06-04 2000-05-29 Verfahren zur reinigung von natriumoxalat enthaltende natriumaluminatlösungen mit verwertung von rückständen Expired - Lifetime DE60001507T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9907231A FR2794449B1 (fr) 1999-06-04 1999-06-04 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant de valoriser les residus
PCT/FR2000/001451 WO2000075073A1 (fr) 1999-06-04 2000-05-29 Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant de valoriser les residus

Publications (2)

Publication Number Publication Date
DE60001507D1 true DE60001507D1 (de) 2003-04-03
DE60001507T2 DE60001507T2 (de) 2003-12-11

Family

ID=9546529

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60001507T Expired - Lifetime DE60001507T2 (de) 1999-06-04 2000-05-29 Verfahren zur reinigung von natriumoxalat enthaltende natriumaluminatlösungen mit verwertung von rückständen

Country Status (8)

Country Link
EP (1) EP1198415B1 (de)
AU (1) AU769535B2 (de)
CA (1) CA2376279C (de)
DE (1) DE60001507T2 (de)
ES (1) ES2190971T3 (de)
FR (1) FR2794449B1 (de)
OA (1) OA11960A (de)
WO (1) WO2000075073A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101734694B (zh) * 2008-11-17 2012-10-03 贵阳铝镁设计研究院有限公司 采用超浓缩法从拜尔法溶液中排除草酸钠和碳酸盐的方法
WO2019127305A1 (zh) * 2017-12-29 2019-07-04 焱鑫环保科技有限公司 利用含砷工业碱渣水浸碱液吸收so2烟气、脱砷净化生产亚硫酸钠产品的工艺方法
CN111302371B (zh) * 2020-02-24 2021-07-20 中南大学 脱除铝酸钠溶液中有机物的方法
CN113968710B (zh) * 2021-11-01 2022-05-06 青岛青建新型材料集团有限公司 一种具有自修复功能的防腐海洋混凝土及其制备方法与应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019537A1 (en) * 1991-05-03 1992-11-12 Alcan International Limited Method for the control of sodium oxalate levels in sodium aluminate solutions
FR2686872B1 (fr) * 1992-02-05 1994-06-03 Pechiney Aluminium Procede d'elimination de l'oxalate de sodium des solutions d'aluminate de sodium du cycle bayer.
FR2736908B1 (fr) * 1995-07-20 1997-08-29 Pechiney Aluminium Procede d'epuration des solutions d'aluminate de sodium contenant de l'oxalate de sodium

Also Published As

Publication number Publication date
AU769535B2 (en) 2004-01-29
EP1198415A1 (de) 2002-04-24
CA2376279C (fr) 2009-05-19
AU5226800A (en) 2000-12-28
OA11960A (fr) 2006-04-13
FR2794449B1 (fr) 2001-10-19
EP1198415B1 (de) 2003-02-26
CA2376279A1 (fr) 2000-12-14
FR2794449A1 (fr) 2000-12-08
ES2190971T3 (es) 2003-09-01
DE60001507T2 (de) 2003-12-11
WO2000075073A1 (fr) 2000-12-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition