IT7922183A0 - Processo modificato di piroidrolisi per i rivestimenti esausti delle celle di riduzione dell'alluminio. - Google Patents

Processo modificato di piroidrolisi per i rivestimenti esausti delle celle di riduzione dell'alluminio.

Info

Publication number
IT7922183A0
IT7922183A0 IT7922183A IT2218379A IT7922183A0 IT 7922183 A0 IT7922183 A0 IT 7922183A0 IT 7922183 A IT7922183 A IT 7922183A IT 2218379 A IT2218379 A IT 2218379A IT 7922183 A0 IT7922183 A0 IT 7922183A0
Authority
IT
Italy
Prior art keywords
modified
reduction cell
aluminum reduction
cell linings
pyrohydrolysis process
Prior art date
Application number
IT7922183A
Other languages
English (en)
Other versions
IT1112593B (it
Original Assignee
Kaiser Aluminium Chem Corp
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 Kaiser Aluminium Chem Corp filed Critical Kaiser Aluminium Chem Corp
Publication of IT7922183A0 publication Critical patent/IT7922183A0/it
Application granted granted Critical
Publication of IT1112593B publication Critical patent/IT1112593B/it

Links

Classifications

    • 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
    • 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
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/30—Capture or disposal of greenhouse gases of perfluorocarbons [PFC], hydrofluorocarbons [HFC] or sulfur hexafluoride [SF6]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/09—Reaction techniques
    • Y10S423/16—Fluidization

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Manufacture And Refinement Of Metals (AREA)
IT22183/79A 1978-07-24 1979-04-26 Processo modificato di piroidrolisi per i rivestimenti esausti delle celle di riduzione dell'alluminio IT1112593B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/927,084 US4160809A (en) 1978-07-24 1978-07-24 Modified pyrohydrolysis process for spent aluminum reduction cell linings

Publications (2)

Publication Number Publication Date
IT7922183A0 true IT7922183A0 (it) 1979-04-26
IT1112593B IT1112593B (it) 1986-01-20

Family

ID=25454151

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22183/79A IT1112593B (it) 1978-07-24 1979-04-26 Processo modificato di piroidrolisi per i rivestimenti esausti delle celle di riduzione dell'alluminio

Country Status (9)

Country Link
US (1) US4160809A (it)
JP (1) JPS5520286A (it)
AU (1) AU531376B2 (it)
CA (1) CA1099079A (it)
DE (1) DE2915798C2 (it)
FR (1) FR2434781A1 (it)
GB (1) GB2026453B (it)
IT (1) IT1112593B (it)
NO (1) NO154431C (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928368A1 (de) * 1979-07-13 1981-02-05 Metallgesellschaft Ag Verfahren zur herstellung von fluorwasserstoff
DE2942439C2 (de) * 1979-10-20 1981-10-15 Vereinigte Aluminium-Werke Ag, 5300 Bonn Verfahren und Vorrichtung zur Gewinnung von Fluorwasserstoff aus fluorhaltigen Materialien durch Pyrohydrolyse
US4355017A (en) * 1981-05-14 1982-10-19 Martin Marietta Corporation Aluminum electrolytic cell cathode waste recovery
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
US4743271A (en) * 1983-02-17 1988-05-10 Williams Technologies, Inc. Process for producing a clean hydrocarbon fuel
GB8305583D0 (en) * 1983-03-01 1983-03-30 Alcan Int Ltd Treatment of scrap lining material
US4770869A (en) * 1983-11-07 1988-09-13 Aluminum Company Of America Steam producing process and products
US5336480A (en) * 1983-11-07 1994-08-09 Aluminum Company Of America Steam producing process
DE3405452A1 (de) * 1984-02-16 1985-08-22 Kaiser Aluminum & Chemical Corp., Oakland, Calif. Verfahren zur herstellung von aluminiumfluorid
US4584178A (en) * 1984-11-16 1986-04-22 Quantum Teechnologies, Inc. Apparatus for the manufacture of hypochlorous acid
US4735784A (en) * 1986-07-11 1988-04-05 Morrison-Knudsen Company, Inc. Method of treating fluoride contaminated wastes
GB2198722B (en) * 1986-12-22 1991-04-17 Comalco Alu Process for the recovery of fluoride values
US4763585A (en) * 1987-09-08 1988-08-16 Ogden Environmental Services Method for the combustion of spent potlinings from the manufacture of aluminum
US4973464A (en) * 1989-02-21 1990-11-27 Ogden Environmental Services Method for the removal of cyanides from spent potlinings from aluminum manufacture
DE4025083A1 (de) * 1990-08-08 1992-02-13 Vaw Ver Aluminium Werke Ag Verfahren zur aufarbeitung fluorhaltiger rueckstaende
US5164174A (en) * 1991-10-11 1992-11-17 Reynolds Metals Company Detoxification of aluminum spent potliner by thermal treatment, lime slurry quench and post-kiln treatment
CA2118943C (en) * 1992-07-24 2004-04-20 Ian Lewis Kidd Treatment of solid material
CA2159806C (en) 1993-04-06 2005-07-05 John Millice Floyd Smelting of carbon-containing material
US5558690A (en) * 1994-12-23 1996-09-24 Vortec Corporation Manufacture of ceramic tiles from spent aluminum potlining
KR20000005289A (ko) * 1996-04-09 2000-01-25 제임스 지. 나트 플라이 애쉬로 세라믹 타일을 제조하는 방법
US20110078948A1 (en) * 2009-10-01 2011-04-07 Chandrashekhar Ganpatrao Sonwane Ash removal from coal: process to avoid large quantities of hydrogen fluoride on-site
US20110081284A1 (en) * 2009-10-02 2011-04-07 Mark Weaver Treatment of bauxite residue and spent pot lining
CN102134727B (zh) * 2011-03-10 2012-10-31 伊川龙海科技实业有限公司 一种电解槽余热回收利用的方法及装置
CN103771473B (zh) * 2014-02-18 2015-08-05 贵州万方铝化科技开发有限公司 一种制备小粒径Al2O3粉末的方法
CN109909272B (zh) * 2019-04-11 2022-04-12 新疆新能源(集团)准东环境发展有限公司 以废治废无害化处理铝电解槽大修渣的工艺方法
CN114377338B (zh) * 2021-12-28 2024-07-30 郑州鸿跃环保科技有限公司 一种对铝电解槽大修渣进行脱毒的处理系统及处理方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1271252A (fr) * 1960-07-29 1961-09-08 Electrochimie Soc Procédé de pyrohydrolyse
US4065551A (en) * 1968-02-01 1977-12-27 Elkem-Spigerverket A/S Method of recovering fluorine from carbonaceous waste material
US4113832A (en) * 1977-11-28 1978-09-12 Kaiser Aluminum & Chemical Corporation Process for the utilization of waste materials from electrolytic aluminum reduction systems

Also Published As

Publication number Publication date
DE2915798C2 (de) 1987-01-29
US4160809A (en) 1979-07-10
JPS5520286A (en) 1980-02-13
NO154431B (no) 1986-06-09
GB2026453A (en) 1980-02-06
AU4655879A (en) 1980-01-31
AU531376B2 (en) 1983-08-18
FR2434781B1 (it) 1984-12-14
JPS63374B2 (it) 1988-01-06
GB2026453B (en) 1982-07-14
IT1112593B (it) 1986-01-20
NO154431C (no) 1986-09-17
CA1099079A (en) 1981-04-14
NO791451L (no) 1980-01-25
FR2434781A1 (fr) 1980-03-28
DE2915798A1 (de) 1980-02-07

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