Processes for the preparation of low dust, limited particle size distribution, surfactant granules

US6881359B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Bernhard Leeners · Erkelenz, DE
• Udo Steinberner · Hilden, DE
• Bernd Fabry · Korschenbroich, DE

Key dates

• Filing date: Jan 17, 2001
• Grant date: Apr 19, 2005
• Expiry date: Nov 19, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Processes for preparing surfactant granules, wherein the processes comprise: (a) passing a water-containing surfactant preparation through a casting plate, wherein the casting plate vibrates, such that droplets of the preparation are formed; and (b) contacting the droplets with a gaseous drying agent; are described.