Enhanced anti-solvent sedimentation of solids from liquids using pressurized carbon dioxide gas
US4228002A · kind A · utility
5Cited by
6References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 15, 1978 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | Sep 15, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G21/003
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for increasing the sedimentation of mineral particles in feed liquids containing the same, particularly coal-derived liquids, by the use of an anti-solvent gas pressure technique. The mixture is held under a pressurized carbon dioxide atmosphere which causes an increase in the initial settling rate for sedimentation of the mineral particles from such liquids so that they may be used as fuels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.