Method of isolating cobalt and/or manganese as oxalates

US4490298A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventor

• Marcel Feld · Cologne, DE

Key dates

• Filing date: Feb 1, 1983
• Grant date: Dec 25, 1984
• Expiry date: Feb 1, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/412
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a process for the isolation of cobalt and/or manganese in the form of precipitated, easily filtrable cobalt and/or manganese oxalates from acetic acid solutions or extracts, the solutions in question are treated with oxalic acid dimethyl or diethyl ester at temperatures of 50.degree. to 250.degree. C.