Process for preparing high purity epichlorohydrin

US5169964A · kind A · utility

Assignee

• Deutsche Solvay-Werke GmbH · DE

Inventors

• Gerald Jakobson · Rheinberg, DE
• Werner Siemanowski · Rheinberg, DE

Key dates

• Filing date: Apr 4, 1989
• Grant date: Dec 8, 1992
• Expiry date: Apr 4, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D301/32
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing ultrapure epichlorohydrin from epichlorohydrin containing technical impurities, by fractional distillation under particular conditions, preferably with continuous operation, that yield a product of very high purity and very low content of halogenated hydrocarbons. Epoxy resins made with such ultrapure epichlorohydrin are especially well suited for use in fabricating electrical components and microchips.