Method for processing residues from the distillation of chlorosilanes

US5182095A · kind A · utility

Assignee

• Huls Troisdorf AG · DE

Inventors

• Klaus Ruff · Troisdorf, DE
• Bernhard Falk · Rheinfelden (Baden), DE
• Detlef Liesching · Troisdorf, DE

Key dates

• Filing date: Jul 12, 1991
• Grant date: Jan 26, 1993
• Expiry date: Jul 12, 2011

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A62D2101/22
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A residue from the production of chlorosilanes from raw silicon is treated with steam and aditionally with nitrogen-oxygen mixtures. The resulting residue has a lower chloride content.