EP 0099840 B1 19860813 - ELECTROLYTIC POT FOR THE PRODUCTION OF ALUMINIUM HAVING A CONDUCTIVE FLOATING SCREEN
Title (en)
ELECTROLYTIC POT FOR THE PRODUCTION OF ALUMINIUM HAVING A CONDUCTIVE FLOATING SCREEN
Publication
Application
Priority
FR 8211873 A 19820630
Abstract (en)
[origin: ES8403984A1] The invention relates to an electrolysis tank for production of aluminum by electrolysis of alumina dissolved in a molten cryolite bath, by the Hall-Heroult process, between at least a carbon anode and an aluminum sheet covering a carbon cathode substrate. At the interface of the aluminum sheet and molten cryolite bath it comprises a floating screen, which is conductive of electric current, not connected to the carbon cathode substrate and free to move at least in the vertical direction. The floating conductive screen can extend over the entire interface or be limited to being perpendicular to each anode. The distance between each anode and the floating conductive screen can be reduced to about 20 mm.
IPC 1-7
IPC 8 full level
C25C 3/08 (2006.01)
CPC (source: EP KR US)
C25C 3/08 (2013.01 - EP KR US)
Designated contracting state (EPC)
CH DE GB IT LI NL SE
DOCDB simple family (publication)
EP 0099840 A1 19840201; EP 0099840 B1 19860813; AU 1646083 A 19840105; AU 562447 B2 19870611; BR 8303459 A 19840207; CA 1190892 A 19850723; DE 3365289 D1 19860918; ES 523678 A0 19840401; ES 8403984 A1 19840401; FR 2529580 A1 19840106; FR 2529580 B1 19860321; GR 77515 B 19840924; IN 159794 B 19870606; JP S5920484 A 19840202; JP S6141997 B2 19860918; KR 840006510 A 19841130; NO 832365 L 19840102; OA 07473 A 19841231; SU 1356967 A3 19871130; US 4533452 A 19850806; YU 140683 A 19851231; ZA 834761 B 19840328
DOCDB simple family (application)
EP 83420109 A 19830629; AU 1646083 A 19830630; BR 8303459 A 19830628; CA 431303 A 19830628; DE 3365289 T 19830629; ES 523678 A 19830629; FR 8211873 A 19820630; GR 830171761 A 19830623; IN 855CA1983 A 19830711; JP 11805283 A 19830629; KR 830002971 A 19830630; NO 832365 A 19830629; OA 58040 A 19830628; SU 3610550 A 19830627; US 50958583 A 19830630; YU 140683 A 19830628; ZA 834761 A 19830629