EP 0144371 B1 19870930 - CATHODE BAR COMPRISING A METAL SOLE FOR HALL-HEROULT ELECTROLYSIS TANKS
Title (en)
CATHODE BAR COMPRISING A METAL SOLE FOR HALL-HEROULT ELECTROLYSIS TANKS
Publication
Application
Priority
- FR 8308334 A 19830516
- FR 8403864 A 19840302
Abstract (en)
[origin: US4647356A] PCT No. PCT/FR84/00129 Sec. 371 Date Dec. 20, 1984 Sec. 102(e) Date Dec. 20, 1984 PCT Filed May 14, 1984 PCT Pub. No. WO84/04547 PCT Pub. Date Nov. 22, 1984.The invention relates to a cathode rod permitting extraction of the current from a cell for the production of aluminum by electrolysis according to the Hall-Heroult process, which is sealed in at least one groove which is open at the base of each of the carbonated blocks 1 forming the cathode of the electrolysis cell. According to the invention, the cathode rod 2 is extended by a metal sole 5 in electrical contact with the base of the carbonated blocks 1 over at least 20% of the total surface area of this base. The sole 5 is constituted by a metal sheet which is at least 4 mm thick and preferably at least 10 mm thick and is soldered to the cathode rod 2 before the carbonated block 1 is positioned in the cell. To prevent infiltration of electrolyte into the subcathode space, the lower face of the sole 5 is placed in a superimposed relationship and in electrical contact with a thick, continuous metal screen 26 arranged at the top of the thermally insulating lining.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C25C 3/16 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE GB LI NL SE
DOCDB simple family (publication)
US 4647356 A 19870303; AU 2963884 A 19841204; AU 569524 B2 19880204; CA 1214752 A 19861202; DE 3466561 D1 19871105; EP 0144371 A1 19850619; EP 0144371 B1 19870930; ES 288259 U 19851216; ES 288259 Y 19860716; FR 2560613 A2 19850906; FR 2560613 B2 19870327; GR 81586 B 19841211; IS 1305 B6 19871125; IS 2911 A7 19840712; IT 1173645 B 19870624; IT 8420920 A0 19840515; IT 8420920 A1 19851115; NO 850095 L 19850109; NZ 208161 A 19880330; SU 1349702 A3 19871030; WO 8404547 A1 19841122; YU 84284 A 19871231
DOCDB simple family (application)
US 69438184 A 19841220; AU 2963884 A 19840514; CA 454375 A 19840515; DE 3466561 T 19840514; EP 84902015 A 19840514; ES 288259 U 19840514; FR 8400129 W 19840514; FR 8403864 A 19840302; GR 840174721 A 19840515; IS 2911 A 19840514; IT 2092084 A 19840515; NO 850095 A 19850109; NZ 20816184 A 19840515; SU 3836862 A 19850115; YU 84284 A 19840515