Process for separating copper from aqueous base solutions

US5039497A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Jurgen Weber · Oberhausen, DE
• Peter Lappe · Dinslaken, DE
• Werner De Win · Dinslaken, DE

Key dates

• Filing date: Nov 30, 1989
• Grant date: Aug 13, 1991
• Expiry date: Nov 30, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S423/14
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Copper is separated from aqueous basic solutions by extraction with 3-hydroxy-2-alkylalkanaloxime or 2-hydroxymethyl-2-alkylalkanaloxime solution.