Method for dehydration of a composition of a fine powder and water
US4686774A · kind A · utility
3Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1986 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Aug 28, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
From a composition of a fine powder and water, a fine powder minimally susceptible of agglomeration is obtained by a method which comprises adding to the composition of a fine powder and water a water-insoluble organic solvent at least in an amount enough for consequently forming an azeotropic composition with respect to the amount of the water involved, converting the resulting mixed liquid into a W/O type emulsion, and removing the water and the organic solvent from the emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.