Global Patent Index - EP 0964942 A1

EP 0964942 A1 19991222 - METHOD FOR TREATING AN ELECTROLYTE USED FOR ELECTROPHORETIC PAINTING

Title (en)

METHOD FOR TREATING AN ELECTROLYTE USED FOR ELECTROPHORETIC PAINTING

Title (de)

VERFAHREN ZUM AUFBEREITEN EINES FÜR EINE ELEKTROPHORETISCHE LACKIERUNG EINGESETZTEN ELEKTROLYTEN

Title (fr)

PROCEDE POUR TRAITER UN ELECTROLYTE UTILISE POUR LA MISE EN PEINTURE PAR ELECTROPHORESE

Publication

EP 0964942 A1 19991222 (DE)

Application

EP 98922987 A 19980610

Priority

  • AT 101997 A 19970612
  • IB 9800899 W 19980610

Abstract (en)

[origin: WO9856964A1] The invention relates to a method for treating an electrolyte used for electrophoretic painting. The electrolyte concentration of ions attacking the electrodes (3) is diluted by removing part of the electrolyte and by replacing the removed electrolyte with a corresponding low-iron fluid while keeping it below an upper limit. The inventive method can be carried out in a cost-effective manner by subjecting the removed part of the electrolyte to inverse osmosis (6) and by re-introducing it, at least as part of the replacement fluid, into the electrolyte used.

IPC 1-7

C25D 13/24; B01D 61/02; C02F 1/44

IPC 8 full level

B01D 61/02 (2006.01); C02F 1/44 (2006.01); C25D 13/24 (2006.01)

CPC (source: EP US)

B01D 61/025 (2013.01 - EP); B01D 61/026 (2022.08 - EP US); C02F 1/441 (2013.01 - EP); C25D 13/24 (2013.01 - EP US); Y02A 20/131 (2018.01 - EP)

Designated contracting state (EPC)

DE ES FR GB IT PT

DOCDB simple family (publication)

WO 9856964 A1 19981217; AT 404434 B 19981125; AT A101997 A 19980415; AU 7544298 A 19981230; DE 19880824 D2 19991125; EP 0964942 A1 19991222

DOCDB simple family (application)

IB 9800899 W 19980610; AT 101997 A 19970612; AU 7544298 A 19980610; DE 19880824 T 19980610; EP 98922987 A 19980610