Method for making a particle comprising micronised sulphate
US8802615B2 · kind B2 · utility
1Cited by
7References
18Claims
0Family size
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Key dates
| Filing date | Feb 20, 2013 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Feb 20, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for making a particle comprising at least 45 wt % sulphate, from 0 wt % to 15 wt % anionic detersive surfactant, and having a bulk density of from 350 g/l to 700 g/l, comprising the steps of; (a) preparing an aqueous slurry comprising sulphate, and optionally detersive surfactant; (b) drying the particle; and wherein the sulphate added to the aqueous slurry has a volume average particle size of from 10 micrometers to 50 micrometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.