Removal of sulfuric acid compounds

US4025479A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

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

Key dates

• Filing date: Sep 16, 1975
• Grant date: May 24, 1977
• Expiry date: Sep 16, 1995

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 polybutadiene alone or combined with unsaturated terpene compounds 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.