Method for the production of metallurgical grade coal and low ash coal
US4388181A · kind A · utility
10Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Dec 14, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is disclosed for the production of metallurgical grade coal and low ash coal by the combination of froth flotation and selective agglomeration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.