IT1115163B - Procedimento di piroidrolisi per rivestimento di celle per la riproduzione di alluminio consumati - Google Patents

Procedimento di piroidrolisi per rivestimento di celle per la riproduzione di alluminio consumati

Info

Publication number
IT1115163B
IT1115163B IT21667/79A IT2166779A IT1115163B IT 1115163 B IT1115163 B IT 1115163B IT 21667/79 A IT21667/79 A IT 21667/79A IT 2166779 A IT2166779 A IT 2166779A IT 1115163 B IT1115163 B IT 1115163B
Authority
IT
Italy
Prior art keywords
pyrohydrolysis
reproduction
cells
procedure
coating
Prior art date
Application number
IT21667/79A
Other languages
English (en)
Other versions
IT7921667A0 (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 IT7921667A0 publication Critical patent/IT7921667A0/it
Application granted granted Critical
Publication of IT1115163B publication Critical patent/IT1115163B/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
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
IT21667/79A 1978-05-30 1979-04-06 Procedimento di piroidrolisi per rivestimento di celle per la riproduzione di alluminio consumati IT1115163B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/910,416 US4160808A (en) 1978-05-30 1978-05-30 Pyrohydrolysis process for spent aluminum reduction cell linings

Publications (2)

Publication Number Publication Date
IT7921667A0 IT7921667A0 (it) 1979-04-06
IT1115163B true IT1115163B (it) 1986-02-03

Family

ID=25428752

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21667/79A IT1115163B (it) 1978-05-30 1979-04-06 Procedimento di piroidrolisi per rivestimento di celle per la riproduzione di alluminio consumati

Country Status (9)

Country Link
US (1) US4160808A (it)
JP (1) JPS54155997A (it)
AU (1) AU522814B2 (it)
CA (1) CA1099081A (it)
DE (1) DE2915760A1 (it)
FR (1) FR2427298A1 (it)
GB (1) GB2022067B (it)
IT (1) IT1115163B (it)
NO (1) NO153693C (it)

Families Citing this family (18)

* 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
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
GB8305583D0 (en) * 1983-03-01 1983-03-30 Alcan Int Ltd Treatment of scrap lining material
FR2615764B1 (fr) * 1987-06-01 1989-08-18 Pechiney Aluminium Procede de traitement, par silicopyrohydrolyse, de brasquages uses provenant de cuves d'electrolyse hall-heroult
US4763585A (en) * 1987-09-08 1988-08-16 Ogden Environmental Services Method for the combustion of spent potlinings from the manufacture of aluminum
US5024822A (en) * 1988-03-29 1991-06-18 Aluminum Company Of America Stabilization of fluorides of spent potlining by chemical dispersion
US4956158A (en) * 1988-03-29 1990-09-11 Aluminum Company Of America Stabilization of fluorides of spent potlining by chemical dispersion
US4973464A (en) * 1989-02-21 1990-11-27 Ogden Environmental Services Method for the removal of cyanides from spent potlinings from aluminum manufacture
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
WO1994002263A1 (en) * 1992-07-24 1994-02-03 Comalco Aluminium Limited Treatment of solid material
US5476990A (en) * 1993-06-29 1995-12-19 Aluminum Company Of America Waste management facility
US5723097A (en) * 1995-12-08 1998-03-03 Goldendale Aluminum Company Method of treating spent potliner material from aluminum reduction cells
US6193944B1 (en) 1995-12-08 2001-02-27 Goldendale Aluminum Company Method of recovering fumed silica from spent potliner
US6217840B1 (en) 1995-12-08 2001-04-17 Goldendale Aluminum Company Production of fumed silica
US6248302B1 (en) 2000-02-04 2001-06-19 Goldendale Aluminum Company Process for treating red mud to recover metal values therefrom
US6774277B2 (en) 2000-03-07 2004-08-10 Waste Management, Inc. Methods of destruction of cyanide in cyanide-containing waste
CN102011148B (zh) * 2010-12-02 2012-07-04 云南云铝涌鑫铝业有限公司 一种铝电解阳极炭渣无害化处理及电解质回收的方法

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
US4160808A (en) 1979-07-10
AU4659379A (en) 1979-12-06
NO153693C (no) 1986-05-07
AU522814B2 (en) 1982-06-24
JPS6234684B2 (it) 1987-07-28
DE2915760C2 (it) 1988-03-03
CA1099081A (en) 1981-04-14
IT7921667A0 (it) 1979-04-06
NO153693B (no) 1986-01-27
DE2915760A1 (de) 1979-12-06
FR2427298A1 (fr) 1979-12-28
NO791450L (no) 1979-12-03
GB2022067A (en) 1979-12-12
JPS54155997A (en) 1979-12-08
GB2022067B (en) 1982-08-11
FR2427298B1 (it) 1984-11-09

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