Global Patent Index - EP 0370920 B1

EP 0370920 B1 19930317 - PROCESS FOR THE PRODUCTION OF QUINONE FROM HYDROQUINONE BY ELECTROLYSIS

Title (en)

PROCESS FOR THE PRODUCTION OF QUINONE FROM HYDROQUINONE BY ELECTROLYSIS

Publication

EP 0370920 B1 19930317 (FR)

Application

EP 89420383 A 19891009

Priority

FR 8814361 A 19881014

Abstract (en)

[origin: US4963234A] Quinones are produced by electrolysis of corresponding hydroquinones, in the anode compartment of an electrolytic cell, by electrolyzing a dispersion or emulsion including a conductive aqueous solution of hydroquinone and at least one stable cosolvent which is poorly soluble in water but which is a good solvent for the quinone produced and a poor solvent for the hydroquinone.

IPC 1-7

C25B 3/02

IPC 8 full level

C25B 3/02 (2006.01); C25B 3/23 (2021.01)

CPC (source: EP US)

C25B 3/23 (2021.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

US 4963234 A 19901016; AT E87040 T1 19930415; CA 1330773 C 19940719; DE 68905443 D1 19930422; DE 68905443 T2 19930624; EP 0370920 A1 19900530; EP 0370920 B1 19930317; ES 2041436 T3 19931116; FR 2637916 A1 19900420; FR 2637916 B1 19901207; IE 893306 L 19900414; JP H02141592 A 19900530; JP H034625 B2 19910123

DOCDB simple family (application)

US 42183389 A 19891016; AT 89420383 T 19891009; CA 612834 A 19890925; DE 68905443 T 19891009; EP 89420383 A 19891009; ES 89420383 T 19891009; FR 8814361 A 19881014; IE 330689 A 19891013; JP 25717889 A 19891003