Method and apparatus for continuous electrolytic recovery of metal in ribbon form from a metal containing solution

US5516411A · kind A · utility

Assignee

• Heraeus Elektrochemie GmbH

Inventors

• Stephan Kotowski · Seligenstadt, DE
• Harri Heinke · Niederrodenbach, DE
• Wolfgang Blatt · Wächtersbach, DE
• Max Mayr · Alzenau, DE
• Reinhard Bedel · Obertshausen, DE

Key dates

• Filing date: Jan 18, 1995
• Grant date: May 14, 1996
• Expiry date: Jan 18, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25D1/04
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

To permit continuous roll-off or stripping of metal in form of a ribbon, tape or foil from a rotating cathode roller or drum (3, 43) within a metal ion containing solution, the cathode roller or drum is cooled during operation and the solution of the processing liquid contains a halogen compound or a sulfur compound, for example zinc chloride, to obtain zinc in form of a ribbon, tape or foil. The cathode roller or drum is at least partly, and for example entirely submerged in the ion containing processing solution, rotatable about a horizontal or vertical axis, and the anodes (4, 44) are separated from the ion containing solution by a separating diaphragm or ion exchange membrane.