Global Patent Index - EP 0020831 A1

EP 0020831 A1 19810107 - Method of regenerating electrolyte in a zinc plating process.

Title (en)

Method of regenerating electrolyte in a zinc plating process.

Title (de)

Verfahren zum Regenerieren des bei Verzinkungsverfahren verwendeten Elktrolyten.

Title (fr)

Procédé de régénération d'électrolyte dans un procédé de revêtement de zinc.

Publication

EP 0020831 A1 19810107 (EN)

Application

EP 79301224 A 19790625

Priority

EP 79301224 A 19790625

Abstract (en)

A method of supplying zinc to a sulfuric acid containing electrolyte (L) used between an anode (40) and a moving metal cathode (B) for depositing zinc onto the cathode (B). The method includes directing the electrolyte (L) to a holding tank (30) where zinc oxide particles of about. 3 micron or less and a purity of at least 99% zinc oxide is added to the electrolyte (L) and allowed to dissolve in the electrolyte to provide the zinc compound used in electroplating between the electrodes (A, B). Thereafter, the electrolyte (L) is directed to the area between the anode (40) and cathode (B) for the zinc plating process.

IPC 1-7

C25D 21/14; C25D 3/22

IPC 8 full level

C25D 3/22 (2006.01); C25D 21/14 (2006.01)

CPC (source: EP)

C25D 3/22 (2013.01); C25D 21/14 (2013.01)

Citation (search report)

  • FR 2244840 A1 19750418 - DU PONT [US]
  • GB 1104180 A 19680221 - GEIGY UK LTD
  • [X] CHEMICAL ABSTRACTS, Vol. 84, No. 8, Febr 23, 1976, page 521 ref. 51500e Columbus, Ohio, US & JP-A-50 085531 (NIPPON KOKAN K.K.) 10-07-1975 * Abstract *
  • [X] CHEMICAL ABSTRACTS, Vol. 84, No. 8, Febr. 23, 1976, page 521 ref. 51495g Columbus, Ohio, US & JP-A-50 067238 (NIPPON KOKAN K.K.) 05-06-1975 * Abstract *
  • DETTNER-ELZE, HANDBUCH DER GALVANOTECHNIK Munchen, DE * Band II, page 306, Band I, page 433, Band I, page 478 *

Designated contracting state (EPC)

DE FR GB SE

DOCDB simple family (publication)

EP 0020831 A1 19810107

DOCDB simple family (application)

EP 79301224 A 19790625