DE69511528D1 - Verfahren zur entfernung von eisen aus natriumaluminatlaugen, die aus dem alkalischen angriff von aluminium-metahydroxid enthaltendem bauxit stammen - Google Patents

Verfahren zur entfernung von eisen aus natriumaluminatlaugen, die aus dem alkalischen angriff von aluminium-metahydroxid enthaltendem bauxit stammen

Info

Publication number
DE69511528D1
DE69511528D1 DE69511528T DE69511528T DE69511528D1 DE 69511528 D1 DE69511528 D1 DE 69511528D1 DE 69511528 T DE69511528 T DE 69511528T DE 69511528 T DE69511528 T DE 69511528T DE 69511528 D1 DE69511528 D1 DE 69511528D1
Authority
DE
Germany
Prior art keywords
aluminum
iron
removal
liquids derived
alkaline attack
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
DE69511528T
Other languages
English (en)
Other versions
DE69511528T2 (de
Inventor
Jean Deville
Jean-Michel Lamerant
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 DE69511528D1 publication Critical patent/DE69511528D1/de
Application granted granted Critical
Publication of DE69511528T2 publication Critical patent/DE69511528T2/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
    • C01F7/04—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
    • C01F7/062—Digestion
    • C01F7/0633—Digestion characterised by the use of additives
    • 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
    • C01F7/062—Digestion
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Nutrition Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DE69511528T 1994-12-22 1995-12-20 Verfahren zur entfernung von eisen aus natriumaluminatlaugen, die aus dem alkalischen angriff von aluminium-metahydroxid enthaltendem bauxit stammen Expired - Lifetime DE69511528T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415727A FR2728556B1 (fr) 1994-12-22 1994-12-22 Procede d'elimination du fer dans les liqueurs d'aluminate de sodium issues de l'attaque alcaline de bauxite a monohydrate d'alumine
PCT/FR1995/001703 WO1996019410A1 (fr) 1994-12-22 1995-12-20 Procede d'elimination du fer dans les liqueurs d'aluminate de sodium issues de l'attaque alcaline de bauxite a monohydrate d'alumine

Publications (2)

Publication Number Publication Date
DE69511528D1 true DE69511528D1 (de) 1999-09-23
DE69511528T2 DE69511528T2 (de) 2000-03-09

Family

ID=9470296

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69511528T Expired - Lifetime DE69511528T2 (de) 1994-12-22 1995-12-20 Verfahren zur entfernung von eisen aus natriumaluminatlaugen, die aus dem alkalischen angriff von aluminium-metahydroxid enthaltendem bauxit stammen

Country Status (10)

Country Link
US (1) US5628972A (de)
EP (1) EP0748294B1 (de)
CN (1) CN1085621C (de)
AU (1) AU691716B2 (de)
DE (1) DE69511528T2 (de)
ES (1) ES2137564T3 (de)
FR (1) FR2728556B1 (de)
GR (1) GR3031748T3 (de)
HU (1) HU225042B1 (de)
WO (1) WO1996019410A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPN808296A0 (en) * 1996-02-15 1996-03-07 Queensland Alumina Limited Bauxite treatment
BR9707579A (pt) 1996-12-20 1999-07-27 Po Hang Iron & Steel Método para aumentar a proporç o de carbonização
FR2758544B1 (fr) * 1997-01-22 1999-02-26 Pechiney Aluminium Procede ameliore de traitement de bauxites riches en monohydrate d'alumine
CN1865141B (zh) * 2005-05-18 2010-10-27 贵阳铝镁设计研究院 提高氧化铝生产中溶出液Rp的方法
CN1865146B (zh) * 2005-05-18 2010-07-28 贵阳铝镁设计研究院 氧化铝生产中含泥原矿除砂与排粗的方法
FR2934852B1 (fr) * 2008-08-06 2011-06-24 Alcan Int Ltd Perfectionnement au procede bayer de production de trihydrate d'alumine, ledit procede comprenant une etape dans laquelle la liqueur sursaturee est filtree a haute temperature avant decomposition
ES2539680T3 (es) * 2012-06-20 2015-07-03 Pleason Ventures Ltd Procedimiento para el procesamiento complejo de bauxita
CN102976374B (zh) * 2012-12-01 2014-11-12 中南大学 一种氧化铝生产过程中铁矿物的转化方法
AU2014280959B2 (en) * 2014-12-24 2020-10-22 Pleason Ventures Ltd Process For The Complex Processing Of Bauxite
US9441283B2 (en) 2014-12-24 2016-09-13 Pleason Ventures Ltd. Process for complex processing of bauxite
CN108031142A (zh) * 2017-12-13 2018-05-15 上海合全药物研发有限公司 一种简化的利用湿磨来制备大量微晶种的装置及方法
CN109179461B (zh) * 2018-09-19 2021-03-23 孝义市泰兴铝镁有限公司 一种低钠拟薄水铝石及其制备方法、装置
CN111410219B (zh) * 2020-03-26 2022-11-11 重庆市九龙万博新材料科技有限公司 一种铝土矿的溶出工艺
CN113441519A (zh) * 2021-06-28 2021-09-28 广西田东锦鑫化工有限公司 一种拜耳法赤泥脱碱及碱回收工艺

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796789A (en) * 1972-04-07 1974-03-12 Aluminum Co Of America Removal of iron from sodium aluminate liquor
SU510974A1 (ru) * 1974-01-04 1988-08-23 Всесоюзный Научно-Исследовательский И Проектный Институт Алюминиевой,Магниевой И Электродной Промышленности Способ получени глинозема
IE41148B1 (en) * 1974-05-23 1979-10-24 Alcan Res & Dev Improvement in the extraction of alumina from bauxite
US3966874A (en) * 1975-05-14 1976-06-29 Reynolds Metals Company Extraction of alumina from bauxite ores
US4483830A (en) * 1981-09-10 1984-11-20 Comalco Limited Production of alumina
FR2546872B1 (fr) * 1983-06-03 1986-01-03 Inst Aljuminievoi Procede de transformation d'aluminosilicates bruts en alumine, produits sodiques et ciment
US4518571A (en) * 1984-02-27 1985-05-21 Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Aljuminievo Magnievoi I Elektrodnoi Promyshlennosti Process for desilication of aluminate liquors in the production of alumina
DE3501350A1 (de) * 1985-01-17 1986-07-17 Alcoa Chemie GmbH, 6700 Ludwigshafen Verfahren zur herstellung von aluminiumhydroxid mit niedrigem gehalt an verunreinigungen, insbesondere an eisen, und hohem weissgrad
EP0188268A3 (de) * 1985-01-17 1990-01-31 Alcoa Chemie GmbH Verfahren zur Herstellung von Aluminiumhydroxid mit niedrigem Gehalt an Verunreinigungen, insbesondere an Eisen, und hohem Weissgrad

Also Published As

Publication number Publication date
CN1141620A (zh) 1997-01-29
EP0748294B1 (de) 1999-08-18
HU9602275D0 (en) 1996-10-28
AU691716B2 (en) 1998-05-21
FR2728556A1 (fr) 1996-06-28
WO1996019410A1 (fr) 1996-06-27
US5628972A (en) 1997-05-13
EP0748294A1 (de) 1996-12-18
HUT76868A (en) 1997-12-29
DE69511528T2 (de) 2000-03-09
CN1085621C (zh) 2002-05-29
FR2728556B1 (fr) 1997-01-31
GR3031748T3 (en) 2000-02-29
ES2137564T3 (es) 1999-12-16
AU4450996A (en) 1996-07-10
HU225042B1 (en) 2006-05-29

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: ALUMINIUM PECHINEY, PARIS, FR

8364 No opposition during term of opposition