Coal processing system for producing a stream of flowable insoluble coal products
US4090958A · kind A · utility
7Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1976 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Feb 23, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved coal processing system wherein a feed mixture (including coal, dissolving solvent, insoluble coal products and soluble coal products) at a first temperature level is separated in a first separation zone into a heavy fraction including the insoluble coal products and a light fraction and, thereafter, the heavy fraction is withdrawn from the first separation zone and heated to a second temperature level higher than the first temperature level and in which the second temperature level is sufficiently high to produce a heavy fraction that is flowable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.