System for separating soluble and insoluble coal products from a feed mixture
US4090957A · kind A · utility
11Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1976 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Jun 1, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/0203
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved coal processing system wherein relatively small droplets of a feed mixture (including both soluble and insoluble coal products) are dispersed in a first separation zone and contacted, countercurrently with a dissolving solvent to form a heavy fraction containing the insoluble coal products and a separate light fraction containing the soluble coal products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.