Process for the production of stabilized sodium percarbonate

US4194025A · kind A · utility

Assignee

• Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler

Inventors

• Hans Klebe · Rheinfelden (Baden), DE
• Gerd Knippschild · Bad Nauheim, DE
• Hubert Schuster · Rheinfelden (Baden), DE

Key dates

• Filing date: Mar 1, 1979
• Grant date: Mar 18, 1980
• Expiry date: Mar 1, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B15/106
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

There are prepared sodium percarbonate particles comprising a sodium percarbonate nucleus encased in a layer of a mixture of dehydrated sodium perborate and sodium silicate prepared by spraying the sodium percarbonate with a supersaturated solution of sodium perborate and a sodium silicate solution and drying to at least partially remove the added water.