DE69228865T2 - Verfahren zur herstellung von aluminiumhydroxid aus aluminiumoxid enthaltenden erzen - Google Patents

Verfahren zur herstellung von aluminiumhydroxid aus aluminiumoxid enthaltenden erzen

Info

Publication number
DE69228865T2
DE69228865T2 DE69228865T DE69228865T DE69228865T2 DE 69228865 T2 DE69228865 T2 DE 69228865T2 DE 69228865 T DE69228865 T DE 69228865T DE 69228865 T DE69228865 T DE 69228865T DE 69228865 T2 DE69228865 T2 DE 69228865T2
Authority
DE
Germany
Prior art keywords
alumina
solution
slurry
temperature
desilication
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
DE69228865T
Other languages
German (de)
English (en)
Other versions
DE69228865D1 (de
Inventor
Takuo Harato
Michikazu Inami
Kazuhisa Ishibashi
Takahiro Ishida
Yoshio Kumagae
Mitsuaki Murakami
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of DE69228865D1 publication Critical patent/DE69228865D1/de
Application granted granted Critical
Publication of DE69228865T2 publication Critical patent/DE69228865T2/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
    • 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)
DE69228865T 1991-10-30 1992-10-29 Verfahren zur herstellung von aluminiumhydroxid aus aluminiumoxid enthaltenden erzen Expired - Lifetime DE69228865T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28464891 1991-10-30
PCT/JP1992/001397 WO1993009062A1 (fr) 1991-10-30 1992-10-29 Procede pour la production d'hydroxyde d'aluminium a partir d'un minerai contenant de l'alumine

Publications (2)

Publication Number Publication Date
DE69228865D1 DE69228865D1 (de) 1999-05-12
DE69228865T2 true DE69228865T2 (de) 1999-09-16

Family

ID=17681189

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228865T Expired - Lifetime DE69228865T2 (de) 1991-10-30 1992-10-29 Verfahren zur herstellung von aluminiumhydroxid aus aluminiumoxid enthaltenden erzen

Country Status (5)

Country Link
EP (1) EP0564659B1 (enExample)
AU (1) AU658235B2 (enExample)
CA (1) CA2099279C (enExample)
DE (1) DE69228865T2 (enExample)
WO (1) WO1993009062A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681560A1 (en) * 1993-02-01 1995-11-15 Alcan International Limited Process and apparatus for the extraction of gibbsitic alumina from bauxite
FR2732332B1 (fr) * 1995-03-31 1997-05-09 Pechiney Aluminium Procede de traitement de bauxite a trihydrate d'alumine a basse teneur en silice reactive
DE19859043A1 (de) * 1998-12-21 2000-06-29 Convenience Food Sys Bv Wiederverschließbare Kunststoffverpackung mit einem Klettverschluß
WO2013131563A1 (en) * 2012-03-07 2013-09-12 Alfa Laval Corporate Ab Process and plant for producing a solid product
CN113371743B (zh) * 2021-05-28 2023-05-30 昆明理工大学 一种两步碱溶法生产化学品氧化铝的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE830945C (de) * 1950-06-03 1952-02-07 Dr Rudolf Wittig Verfahren zum kontinuierlichen Aufschluss von Bauxit
GB757825A (en) * 1953-06-01 1956-09-26 Vaw Ver Aluminium Werke Ag Method of batch treating bauxites with caustic soda solution
JPS4837678B1 (enExample) * 1969-04-17 1973-11-13
JPS5319199A (en) * 1976-08-06 1978-02-22 Sumitomo Chem Co Ltd Extracting method for alumina from alumina-containing ore
JPS57145029A (en) * 1981-02-27 1982-09-07 Sumitomo Alum Smelt Co Ltd Extracting method of alumina from mixed type bauxite
JPS62230613A (ja) * 1986-03-31 1987-10-09 Nippon Light Metal Co Ltd ボ−キサイトからの水酸化アルミニウムの製造法
JPS63190709A (ja) * 1987-01-30 1988-08-08 Nippon Light Metal Co Ltd ボ−キサイトからのアルミナの抽出方法

Also Published As

Publication number Publication date
DE69228865D1 (de) 1999-05-12
AU658235B2 (en) 1995-04-06
CA2099279C (en) 2003-03-18
EP0564659B1 (en) 1999-04-07
AU2799292A (en) 1993-06-07
CA2099279A1 (en) 1993-05-01
EP0564659A4 (enExample) 1994-01-19
EP0564659A1 (en) 1993-10-13
WO1993009062A1 (fr) 1993-05-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SUMITOMO CHEMICAL CO. LTD., TOKIO/TOKYO, JP