Global Patent Index - EP 0053564 B1

EP 0053564 B1 19860618 - PROCESS FOR MONITORING THE DIAPHRAGM PERMEABILITY DURING THE ELECTROLYTIC PREPARATION OF POLYVALENT METALS, AND ELECTROLYSIS CELL FOR CARRYING OUT THIS PROCESS

Title (en)

PROCESS FOR MONITORING THE DIAPHRAGM PERMEABILITY DURING THE ELECTROLYTIC PREPARATION OF POLYVALENT METALS, AND ELECTROLYSIS CELL FOR CARRYING OUT THIS PROCESS

Publication

EP 0053564 B1 19860618 (FR)

Application

EP 81420172 A 19811125

Priority

FR 8025504 A 19801127

Abstract (en)

[origin: US4392924A] The process according to the invention concerns the production of polyvalent metals such as titanium by electrolysis of molten halides. It comprises controlling the permeability of the diaphragm which separates the anolyte from the catholyte, by causing growth or re-dissolution of a deposit of the metal to be produced. The process is applied in particular to the production of titanium by electrolysis from TiCl4.

IPC 1-7

C25C 3/26; C25C 7/06

IPC 8 full level

C25C 3/26 (2006.01); C25C 3/28 (2006.01); C25C 7/04 (2006.01); C25C 7/06 (2006.01)

CPC (source: EP US)

C25C 3/26 (2013.01 - EP US); C25C 7/06 (2013.01 - EP US)

Citation (examination)

US 2789943 A 19570423 - KITTELBERGER WILLIAM W

Designated contracting state (EPC)

AT DE GB IT SE

DOCDB simple family (publication)

EP 0053564 A1 19820609; EP 0053564 B1 19860618; AT E20481 T1 19860715; DE 3174851 D1 19860724; FR 2494728 A1 19820528; FR 2494728 B1 19840302; JP S57116789 A 19820720; JP S5834552 B2 19830727; NO 155703 B 19870202; NO 155703 C 19870513; NO 814028 L 19820528; US 4392924 A 19830712

DOCDB simple family (application)

EP 81420172 A 19811125; AT 81420172 T 19811125; DE 3174851 T 19811125; FR 8025504 A 19801127; JP 18903481 A 19811125; NO 814028 A 19811126; US 31322981 A 19811020