Process for removing mercury from alkali metal alkoxide solutions

US6156214A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Marcus Bongen · Bonn, DE
• Marcel Feld · Cologne, DE
• Guenter Zoche · Bonn, DE

Key dates

• Filing date: Feb 10, 1998
• Grant date: Dec 5, 2000
• Expiry date: Feb 10, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C29/94
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A three-stage process for removing mercury contaminants from alcoholic alkali metal alkoxide solutions is provided, in which mercury is depleted in a first filtration through inert fibrous material, followed by a second filtration through pulverized coal, and then by concentration by distillation, to preferably provide a mercury content below 0.1 ppm.