High-sudsing, granular detergent composition with greater granulate stability and process for its preparation

US4524010A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft (KGaA) · DE

Inventors

• Herbert Reuter · Hilden, DE
• Wolfgang Seiter · Neuss, DE
• Ingo Wegener · Goldkronach, DE

Key dates

• Filing date: Nov 16, 1982
• Grant date: Jun 18, 1985
• Expiry date: Nov 16, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D11/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A spray-dried, high-sudsing detergent granulate is disclosed having a bulk density of not more than 450 gm/l and a high content of anionic tensides, which is characterized by a granule structure resistant to mechanical and climatic influences. The detergent granulate contains a tenside component of alkylbenzene sulfonates and, possibly, fatty alcohol sulfates, a builder component of sodium tripolyphosphate, finely crystalline sodium aluminosilicate (zeolite NaA) and sodium silicate. For the preparation, an aqueous slurry is sprayed in spray-drying equipment. The obtained spray-dried product has a porous granule structure with a mean granule size of 0.4 to 0.8 mm. The bulk density is preferably in the range from 250 to 400 gm/l.