Process for the preparation of free-flowing strongly acidic cation exchangers

US6384092B2 · kind B2 · utility

Assignee

• IAB Ionenaustauscher GmbH Bitterfeld · DE

Inventors

• Reinhard Bachmann · Bad Kötzting, DE
• Lothar Feistel · Delitzsch, DE
• Rudiger Seidel · Sandersdorf, DE
• Karl-Heinz Siekiera · Wolfen, DE
• Kurt Wegewitz · Bitterfeld-Wolfen, DE

Key dates

• Filing date: Jan 10, 2001
• Grant date: May 7, 2002
• Expiry date: Jan 10, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2800/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Sulfonated strongly acidic cation exchangers are rendered free-flowing by treatment with wetting agents or water soluble initiators, washing with water at temperatures of at least 60° C. and heat drying.