Coal treatment for ash removal and agglomeration
US4331447A · kind A · utility
27Cited by
5References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 17, 1980 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Jul 17, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L5/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Coal particles can be agglomerated with simultaneous ash removal therefrom by adding an oil fraction to an aqueous slurry of coal particles which contains a surfactant and optionally an inorganic electrolyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.