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NO884061D0 - Fremgangsmaate for regulering av surhetsgraden i et elektrolytisk bad. - Google Patents

Fremgangsmaate for regulering av surhetsgraden i et elektrolytisk bad.

Info

Publication number
NO884061D0
NO884061D0 NO884061A NO884061A NO884061D0 NO 884061 D0 NO884061 D0 NO 884061D0 NO 884061 A NO884061 A NO 884061A NO 884061 A NO884061 A NO 884061A NO 884061 D0 NO884061 D0 NO 884061D0
Authority
NO
Norway
Prior art keywords
acidity
regulating
procedure
level
electrolytical
Prior art date
Application number
NO884061A
Other languages
English (en)
Other versions
NO173026B (no
NO884061L (no
Inventor
Jean-Luc Basquin
Benoit Sulmont
Original Assignee
Pechiney Aluminium
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9355397&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO884061(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pechiney Aluminium filed Critical Pechiney Aluminium
Publication of NO884061D0 publication Critical patent/NO884061D0/no
Publication of NO884061L publication Critical patent/NO884061L/no
Publication of NO173026B publication Critical patent/NO173026B/no

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
    • C25C3/20—Automatic control or regulation of cells
    • 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
    • C25C3/22—Collecting emitted gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
NO884061A 1987-09-18 1988-09-13 Fremgangsmaate for regulering av surhetsgraden i et elektrolysebad NO173026B (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8713543A FR2620738B1 (fr) 1987-09-18 1987-09-18 Procede de regulation de l'acidite du bain d'electrolyse par recyclage des produits fluores emis par les cuves d'electrolyse hall-heroult

Publications (3)

Publication Number Publication Date
NO884061D0 true NO884061D0 (no) 1988-09-13
NO884061L NO884061L (no) 1989-03-20
NO173026B NO173026B (no) 1993-07-05

Family

ID=9355397

Family Applications (1)

Application Number Title Priority Date Filing Date
NO884061A NO173026B (no) 1987-09-18 1988-09-13 Fremgangsmaate for regulering av surhetsgraden i et elektrolysebad

Country Status (9)

Country Link
US (1) US4867851A (no)
AU (1) AU605448B2 (no)
BR (1) BR8804796A (no)
CA (1) CA1329789C (no)
DE (1) DE3830769A1 (no)
FR (1) FR2620738B1 (no)
NO (1) NO173026B (no)
NZ (1) NZ226108A (no)
SA (1) SA89100034B1 (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2075401T3 (es) * 1990-05-04 1995-10-01 Alusuisse Lonza Services Ag Regulacion y estabilizacion del contenido de alf3 en una celda de electrolisis de aluminio.
US5942097A (en) * 1997-12-05 1999-08-24 The Ohio State University Method and apparatus featuring a non-consumable anode for the electrowinning of aluminum
DE19805619C2 (de) * 1998-02-12 2002-08-01 Heraeus Electro Nite Int Verfahren zur Regelung des AlF¶3¶-Gehaltes in Kryolithschmelzen
US6837982B2 (en) * 2002-01-25 2005-01-04 Northwest Aluminum Technologies Maintaining molten salt electrolyte concentration in aluminum-producing electrolytic cell
US7255783B2 (en) * 2003-08-21 2007-08-14 Alcoa Inc. Use of infrared imaging to reduce energy consumption and fluoride consumption
EA202192572A1 (ru) * 2019-03-20 2021-11-29 Элисис Лимитед Партнершип Система и способ для сбора и предварительной обработки технологических газов, генерируемых электролизной ячейкой

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE628401A (no) * 1962-02-15
US3760565A (en) * 1971-07-19 1973-09-25 Aluminum Co Of America Anti-pollution method
SE362901B (no) * 1971-10-27 1973-12-27 Svenska Flaektfabriken Ab
US3823078A (en) * 1972-12-14 1974-07-09 Reynolds Int Inc Production of fluidized alumina reduction cell feed
US4053375A (en) * 1976-07-16 1977-10-11 Dorr-Oliver Incorporated Process for recovery of alumina-cryolite waste in aluminum production
US4062696A (en) * 1976-07-27 1977-12-13 Kaiser Aluminum & Chemical Corporation Purification of contaminated alumina scavengers of aluminum reduction cell effluent dry scrubber systems
GB1571222A (en) * 1977-03-10 1980-07-09 Ardal Og Sunndal Verk Process and apparatus for treatment of waste gases
GB2029860B (en) * 1978-09-07 1983-03-09 Alcan Res & Dev Measurement of metal fluoride contents of electrolyte in electrolytic reduction cells for alluminium production
DE3564825D1 (en) * 1985-03-18 1988-10-13 Alcan Int Ltd Controlling alf 3 addition to al reduction cell electrolyte

Also Published As

Publication number Publication date
DE3830769C2 (no) 1990-01-18
US4867851A (en) 1989-09-19
NO173026B (no) 1993-07-05
AU605448B2 (en) 1991-01-10
CA1329789C (fr) 1994-05-24
AU2235988A (en) 1989-03-23
DE3830769A1 (de) 1989-04-06
NZ226108A (en) 1991-04-26
BR8804796A (pt) 1989-04-25
NO884061L (no) 1989-03-20
FR2620738A1 (fr) 1989-03-24
FR2620738B1 (fr) 1989-11-24
SA89100034B1 (ar) 1999-06-07

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Legal Events

Date Code Title Description
MK1K Patent expired