Process for the production of washing- and cleaning-active granules

US5397507A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Volker Bauer · Neuberg, DE
• Wilfried Raehse · Goldkronach, DE
• Andreas Syldath · Goldkronach, DE
• Ditmar Kischkel · Monheim, DE

Key dates

• Filing date: Feb 3, 1993
• Grant date: Mar 14, 1995
• Expiry date: Feb 3, 2013

Classification

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

Abstract

The invention concerns a method of converting aqueous surfactant mixtures, in particular aqueous pastes of surfactants with washing properties such as fatty-alcohol sulphates, in particular tallow alcohol sulphates and/or C.sub.12 -C.sub.18 fatty-alcohol sulphates, monosalts of sulphonic fatty-acid methyl esters and their di-salts, alkylglusoside compounds, etc., into concentrated granular material with a long shelf life by granulation. The aqueous surfactant mixture, which includes as a viscosity-control agent alkoxylates of mono- and/or polyhydric alcohols with 8-40 carbon atoms which have up to 20 ethylene oxide and/or propylene oxide groups, is granulated together with fine-particulate water-soluble and/or water-insoluble solids compatible with washing and/or cleaning agents to give a free-running compound. At least part of the water content of the granular material thus produced is preferably then removed by drying, in particular in a fluidized bed.