JPH0416231B2 - - Google Patents

Info

Publication number
JPH0416231B2
JPH0416231B2 JP59011787A JP1178784A JPH0416231B2 JP H0416231 B2 JPH0416231 B2 JP H0416231B2 JP 59011787 A JP59011787 A JP 59011787A JP 1178784 A JP1178784 A JP 1178784A JP H0416231 B2 JPH0416231 B2 JP H0416231B2
Authority
JP
Japan
Prior art keywords
solution
naf
caustic soda
caustic
waste
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
JP59011787A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59154185A (ja
Inventor
Ribaa Goodon
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 Alcan International Ltd
Original Assignee
Alcan International Ltd Canada
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 Alcan International Ltd Canada filed Critical Alcan International Ltd Canada
Publication of JPS59154185A publication Critical patent/JPS59154185A/ja
Publication of JPH0416231B2 publication Critical patent/JPH0416231B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/02—Fluorides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride
    • 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
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/50—Fluorides
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Processing Of Solid Wastes (AREA)
JP59011787A 1983-01-25 1984-01-25 アルミニウム電解槽の廃ライニング材の処理方法 Granted JPS59154185A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838301974A GB8301974D0 (en) 1983-01-25 1983-01-25 Aluminium fluoride from scrap
GB8301974 1983-01-25

Publications (2)

Publication Number Publication Date
JPS59154185A JPS59154185A (ja) 1984-09-03
JPH0416231B2 true JPH0416231B2 (enExample) 1992-03-23

Family

ID=10536895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59011787A Granted JPS59154185A (ja) 1983-01-25 1984-01-25 アルミニウム電解槽の廃ライニング材の処理方法

Country Status (10)

Country Link
US (1) US4816122A (enExample)
EP (1) EP0117616B1 (enExample)
JP (1) JPS59154185A (enExample)
AU (1) AU573560B2 (enExample)
CA (1) CA1239273A (enExample)
DE (1) DE3474654D1 (enExample)
ES (1) ES8602158A1 (enExample)
GB (1) GB8301974D0 (enExample)
IN (1) IN159991B (enExample)
NO (1) NO168029C (enExample)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013701A1 (en) * 1990-03-12 1991-09-19 Ralph Edward Shackleford Spent pot liner treatment process
FR2669350B1 (fr) * 1990-11-16 1993-01-15 Pechiney Aluminium Procede de traitement par voie humide de brasquages uses provenant de cuves d'electrolyse hall-heroult.
CA2097809A1 (en) * 1991-01-11 1992-07-12 Comalco Aluminium Limited Recovery of aluminium and fluoride values from spent pot lining
US5558847A (en) * 1991-02-05 1996-09-24 Kaaber; Henning Process for recovering aluminium and fluorine from fluorine containing waste materials
ZA935347B (en) * 1992-07-24 1994-03-14 Comalco Alu Treatment of solid material
US5470559A (en) * 1993-02-26 1995-11-28 Alcan International Limited Recycling of spent pot linings
AU696980B2 (en) * 1993-07-02 1998-09-24 Broken Hill Proprietary Company Limited, The Method of extracting fluorine from minerals or mineral species
US5830424A (en) * 1993-07-02 1998-11-03 The Broken Hill Proprietary Company Limited Method of extracting fluorine from minerals or mineral species
US5663478A (en) * 1993-09-03 1997-09-02 E.I. Du Pont De Nemours And Company Recovery of aluminum and/or fluoride values from used aluminum chlorofluorides
US5531903A (en) * 1995-03-15 1996-07-02 Cominco Ltd. Fluoride removal from metal sulphate solution and a method of waste utilization
CA2327878C (en) 1999-12-17 2005-02-15 Alcan International Limited Recycling of spent pot linings
US20110081284A1 (en) * 2009-10-02 2011-04-07 Mark Weaver Treatment of bauxite residue and spent pot lining
CN104386711B (zh) * 2014-11-07 2016-07-06 贵州川恒化工股份有限公司 湿法磷酸脱氟渣制备氟化钠的方法
CN105327933B (zh) * 2015-12-14 2017-10-24 北京京碧蓝环保科技有限公司 基于化学沉淀和氧化还原反应的铝电解槽废槽衬处理方法
ITUA20164638A1 (it) * 2016-06-24 2017-12-24 Engitec Tech S P A Procedimento per trattare un materiale solido carbonioso contenente alluminio, fluoruri e ioni sodio.
CN106166560A (zh) * 2016-06-28 2016-11-30 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 一种废阴极炭块的处理方法
CN108435751A (zh) * 2018-03-11 2018-08-24 沈阳银海再生资源科技有限公司 一种铝电解废槽衬无害化及资源化利用方法及装置
CN108677020B (zh) * 2018-06-19 2019-09-24 东北大学 一种将废铝电解质无害化及资源化处理方法
CA3172097A1 (en) * 2020-06-09 2021-12-16 Alcoa Usa Corp. Methods of producing aluminum fluoride from cryolite bath
CN111889489B (zh) * 2020-08-04 2022-04-22 郑州鸿跃环保科技有限公司 一种铝电解大修渣的处理方法和处理系统
CN111940460A (zh) * 2020-08-10 2020-11-17 南通大学 一种铝灰终灰低温催化脱氮方法
CN112624101A (zh) * 2020-12-23 2021-04-09 河南省冶金研究所有限责任公司 一种湿法处理电解铝废阴极材料的工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1871723A (en) * 1929-05-29 1932-08-16 Aluminum Co Of America Process for the recovery of cryolite
CH319303A (de) * 1952-11-26 1957-02-15 Vaw Ver Aluminium Werke Ag Verfahren zur Rückgewinnung von Kryolith aus dem Kohleboden von Elektrolyseöfen
US3106448A (en) * 1961-04-03 1963-10-08 Aluminium Lab Ltd Recovery of cryolite
US3450609A (en) * 1966-03-14 1969-06-17 Ppg Industries Inc Electrolytic process for preparing hydrogen fluoride
US3787304A (en) * 1972-01-31 1974-01-22 Allied Chem Production of hf from fluorine by-products
US4113831A (en) * 1975-10-02 1978-09-12 National Fluoride And Chemical Corporation Recovery of sodium fluoride and other chemicals from spent carbon liners
US4107264A (en) * 1977-11-14 1978-08-15 Allied Chemical Corporation Recovery of TiO2 from ilmenite-type ore by a membrane based electrodialysis process
US4229752A (en) * 1978-05-16 1980-10-21 Texas Instruments Incorporated Virtual phase charge transfer device
GB2056425A (en) * 1979-08-06 1981-03-18 Alcan Res & Dev Treatment of wastes containing water-leachable fluorides
US4444740A (en) * 1983-02-14 1984-04-24 Atlantic Richfield Company Method for the recovery of fluorides from spent aluminum potlining and the production of an environmentally safe waste residue

Also Published As

Publication number Publication date
EP0117616A1 (en) 1984-09-05
US4816122A (en) 1989-03-28
NO840264L (no) 1984-07-26
ES529103A0 (es) 1985-11-01
CA1239273A (en) 1988-07-19
AU573560B2 (en) 1988-06-16
EP0117616B1 (en) 1988-10-19
NO168029B (no) 1991-09-30
AU2374484A (en) 1984-07-26
JPS59154185A (ja) 1984-09-03
GB8301974D0 (en) 1983-02-23
NO168029C (no) 1992-01-08
ES8602158A1 (es) 1985-11-01
DE3474654D1 (en) 1988-11-24
IN159991B (enExample) 1987-06-20

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