Process for making a detergent composition by non-tower process
US6391844B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Apr 1, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D11/0082
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A non-tower process for continuously preparing a granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the steps of: (a) dispersing a surfactant, and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns, while wetting the surfactant coated with the fine powder with finely atomized liquid, in a mixer, and (b) thoroughly mixing the agglomerates in a mixer. Step (b) can also be followed by further step (c), i.e., granulating the agglomerates from step (b) in one or more fluidizing apparatus, during which further coating can be used to prevent over-agglomeration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.