Method for preventing stray currents in peripheral system parts during an electrolysis process for obtaining metals

US6547949B1 · kind B1 · utility

Assignee

• MG Technologies LLC · DE

Inventors

• Nikola Anastasijevic · Schongau, DE
• Stefan Laibach · Treffurt, DE
• Friedhelm Münker · Offenbach, DE
• Markus Schweitzer · Frankfurt am Main, DE
• Walter A. Kuhn · Orlando, US

Key dates

• Filing date: Sep 10, 2001
• Grant date: Apr 15, 2003
• Expiry date: Sep 10, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25C1/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The electrolyte is supplied from a reservoir through at least one supply line to an electrolysis area including anodes and cathodes and at least one electric d.c. voltage source, and used electrolyte is at least partly recirculated from the electrolysis area back to the reservoir through at least one discharge line. Between a first contact point in the electrolyte of the supply line and a second contact point in the electrolyte of the discharge line there is a bridge line containing electrolyte, where the ohmic resistance R1 of the electrolyte in the bridge line between the first and the second contact point is not more than 10% of the ohmic resistance R2 which exists between the first and the second contact point in the electrolyte flowing through the reservoir. The amount of electrolyte flowing through the bridge line per unit time is not more than 5% of the amount of electrolyte flowing in the supply line in the vicinity of the first contact point.