Process for the production of detersive granules

US6174851A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Hubert Harth · Goldkronach, DE
• Franz Pfeifer · Wien, AT
• Gisela Nitsch · Bisamberg, AT
• Johann Seif · Senftenberg, AT
• Herbert Senger · Wien, AT
• Petra-Stefanie Madle · Wien, AT

Key dates

• Filing date: Dec 17, 1999
• Grant date: Jan 16, 2001
• Expiry date: Dec 17, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D2111/44
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Storage-stable homogeneous granules with detersive properties, which are obtained by agglomeration of one or more solids with one or more granulation liquids in a free-fall mixer divided into a mixing zone and a post-mixing zone and comprising a knock-down bar fixed to an end plate from which it crosses the entire mixing zone and optionally extends into the post-mixing zone and are optionally aftertreated, may be produced by in situ neutralization of anionic surfactant acids. The products thus produced show distinct performance advantages, the process also having cost-efficient aspects.