Process for preparing microcrystalline perborate products

US5290476A · kind A · utility

Assignee

• Peroxid-Chemie GmbH · DE

Inventors

• Richard R. Roesler · Wexford, US
• Werner Doetsch · Homborn, DE
• Werner Zeiss · Puchheim, DE
• Rudolf Siegel · Neuwied, DE

Key dates

• Filing date: Jun 3, 1991
• Grant date: Mar 1, 1994
• Expiry date: Jun 3, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B15/12
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for preparing microcrystalline perborate hydrate products and highly concentrated, storage stable aqueous solutions used for this purpose which have a stable active oxygen content and a boron content of 3 to 8% by wt. based on the total weight of the solution. The products of the invention are suitable for numerous uses in the field of bleaching agent, disinfectant and liquid detergent formulations, and other fields of use.