Removal of sulfuric acid compounds

US3954690A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Wolfgang Hesse · Breckenheim, DE
• Kurt Hultzsch · Wiesbaden, DE
• Albert Jung · Taunusstein, DE
• Johannes Reese

Key dates

• Filing date: Jul 19, 1971
• Grant date: May 4, 1976
• Expiry date: Jul 19, 1991

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L61/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Sulfuric acid compounds are removed from reaction mixtures by a reaction with unsaturated terpene compounds or with polybutadiene at elevated temperatures whereby products of reduction are formed which are volatilizable at the temperature of reaction and by expelling said products of reduction from the reaction mixture. Thus a product being substantially free from a sulfur content is obtained.