Method for producing tenside granulates with a higher bulk density

US6362157B1 · kind B1 · utility

Assignee

• Cognis Deutschland GmbH · DE

Inventors

• Olaf Blochwitz · Genthin, DE
• Georg Assmann · Frechen, DE
• Andreas Syldath · Goldkronach, DE
• Ditmar Kischkel · Monheim, DE
• Karl Schmid · Mettmann, DE

Key dates

• Filing date: Aug 11, 2000
• Grant date: Mar 26, 2002
• Expiry date: Aug 11, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/065
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for making detergent granules having a bulk density above 500 g/l involving: (a) providing a fluidized bed; (b) providing an apertured inflow base located below the fluidized bed for introducing fluidization gas into the fluidized bed; (c) providing a grid interposed between the fluidized bed and the apertured inflow base, the grid having a mesh size of less than 600 &mgr;m; (d) providing a surfactant preparation in liquid to paste form; and (e) introducing the surfactant preparation into the fluidized bed to form the detergent granules.