Process for the preparation of stabilized aliphatic diperoxydicarboxylic acids

US5030381A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Frank Zimmermann · Atlanta, US
• Thomas Jostmann · Dülmen, DE
• Hans-Peter Schueller · Marl, DE
• Klaus Engel · Recklinghausen, DE

Key dates

• Filing date: Jun 2, 1989
• Grant date: Jul 9, 1991
• Expiry date: Jun 2, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3945
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Stabilized diperoxydicarboxylic acids are prepared in which diperoxydicarboxylic acids are mixed with sodium sulfate produced in the process to yield improved diperoxydicarboxylic acid granules having good chemical stability despite a high impurity content, safe handling, low bulk density and high abrasion resistance.