Global Patent Index - EP 0003712 B1

EP 0003712 B1 19820127 - PROCESS FOR REDUCING THE MAGNETIC PERTURBATIONS IN ROWS OF HIGH AMPERAGE ELECTROLYTIC CELLS

Title (en)

PROCESS FOR REDUCING THE MAGNETIC PERTURBATIONS IN ROWS OF HIGH AMPERAGE ELECTROLYTIC CELLS

Publication

EP 0003712 B1 19820127 (FR)

Application

EP 79420008 A 19790202

Priority

FR 7804193 A 19780208

Abstract (en)

[origin: ES477486A1] The invention concerns a process for reducing magnetic disturbances in series of electrolysis tanks operating at high current strength. The process comprises passing the negative connecting conductors between the tanks and fixing the distribution of current between the downstream end and the upstream end or the central riser input members of each tank, so as to nullify the component By of the magnetic field at the center of the tank and to render anti-symmetric the component By of the magnetic field at the middle of the long side of the tank, relative to the axis Oy. The field of the adjacent row is also compensated by means of a compensation conductor through which passes a current which circulates in the opposite direction to the electrolysis current. Use for the production of aluminium in series of electrolysis tanks which are supplied with current strengths which may reach 200,000 amperes.

IPC 1-7

C25C 3/16

IPC 8 full level

C25C 3/16 (2006.01)

CPC (source: EP US)

C25C 3/16 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB NL SE

DOCDB simple family (publication)

EP 0003712 A1 19790822; EP 0003712 B1 19820127; AT 373631 B 19840210; AT A95879 A 19830615; AU 4398279 A 19790816; AU 526414 B2 19830106; BR 7900751 A 19790828; CA 1120422 A 19820323; CH 641842 A5 19840315; DE 2961926 D1 19820311; ES 477486 A1 19790716; FR 2423554 A1 19791116; FR 2423554 B1 19810116; GR 66432 B 19810323; IN 151090 B 19830219; IS 1298 B6 19871125; IS 2477 A7 19790511; IT 1110960 B 19860113; IT 7919974 A0 19790207; JP S54116309 A 19790910; JP S585269 B2 19830129; NO 152223 B 19850513; NO 152223 C 19850821; NO 790383 L 19790809; NZ 189577 A 19820914; OA 06184 A 19810630; PL 117122 B1 19810731; PL 213230 A1 19800408; RO 76940 A 19810622; US 4210514 A 19800701; YU 25879 A 19820630; YU 42943 B 19890228; ZA 79537 B 19800227

DOCDB simple family (application)

EP 79420008 A 19790202; AT 95879 A 19790208; AU 4398279 A 19790206; BR 7900751 A 19790207; CA 321054 A 19790207; CH 108279 A 19790205; DE 2961926 T 19790202; ES 477486 A 19790206; FR 7804193 A 19780208; GR 790158254 A 19790203; IN 77DE1979 A 19790201; IS 2477 A 19790206; IT 1997479 A 19790207; JP 1318179 A 19790207; NO 790383 A 19790207; NZ 18957779 A 19790205; OA 56733 A 19790208; PL 21323079 A 19790206; RO 9647479 A 19790201; US 667479 A 19790126; YU 25879 A 19790206; ZA 79537 A 19790207