Process for removing cations from an isophoronenitrile product mixture

US9868699B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Joerg-Joachim Nitz · Essen, DE
• Stephan Kohlstruk · Marl, DE
• Robert Jansen · Collinsville, US
• Andreas Merkel · Recklinghausen, DE
• Anja Mueller · Dortmund, DE
• Jan Cassens · Recklinghausen, DE
• Axel Hengstermann · Senden, DE

Key dates

• Filing date: Mar 21, 2016
• Grant date: Jan 16, 2018
• Expiry date: Mar 21, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Cations are removed from a substance stream that is produced during the production of isophoronenitrile with the help of a cation exchanger.