Process for working up a hydrogen fluoride phase from a fluorination reaction mixture

US5300709A · kind A · utility

Assignee

• SOLVAY FLUOR GMBH · DE

Inventors

• Johannes Eicher · Garbsen, DE
• Werner Rudolph · Hannover, DE
• Bernhard Schulte · Krefeld, DE

Key dates

• Filing date: Jan 11, 1993
• Grant date: Apr 5, 1994
• Expiry date: Jan 11, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C17/21
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for working up the hydrogen fluoride phase of reaction mixtures from fluorination reactions comprising contacting the hydrogen fluoride phase with oleum in order to obtain dried hydrogen fluoride, which can be recycled to the fluorination reaction.