Process for preparing high bulk density detergent compositions
US5164108A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Sep 19, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/065
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a granular detergent composition or component having a bulk density of at least 550 g/l, which comprises PA0 (i) feeding a liquid acid precursor of an anionic surfactant, a solid water-soluble alkaline inorganic material and optionally other materials into a high-speed mixer/densifier, the mean residence time being from about 5 to 30 seconds; PA0 (ii) subsequently treating the granular detergent material in a moderate-speed granulator/densifier, whereby it is brought into or maintained in a deformable state, the mean residence time being from about 1-10 minutes; and finally PA0 (iii) drying and/or cooling the detergent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.