Process for the removal of mercury from solutions contaminated with mercury

US7517435B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Josef Guth · Freinsheim, DE
• Holger Friedrich · Frankenthal (Pfalz), DE
• Hans-Jürgen Bender · Freinsheim, DE
• Dieter Schlafer · Ludwigshafen, DE

Key dates

• Filing date: Nov 17, 2003
• Grant date: Apr 14, 2009
• Expiry date: Oct 7, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S210/914
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Mercury is removed from solutions contaminated with mercury, the solution contaminated with mercury being introduced into a distillation column above the column bottom, solvent being distilled off and solution depleted in mercury being stripped off at the column bottom.