Flotation machine and process for removing impurities from coals
The present invention is directed to a type of flotation machine that combines three separate operations in a single unit. The flotation machine is a hydraulic separator that is capable of reducing the pyrite and other mineral matter content of a coal. When the hydraulic separator is used with a flotation system, the pyrite and certain other mineral particles that may have been entrained by hydrodynamic forces associated with conventional flotation machines and/or by the attachment forces associated with the formation of microagglomerates are washed and separated from the coal. 4 figs.
- Issue Date:
- OSTI Identifier:
- 170460
- Assignee:
- Electric Power Research Inst., Palo Alto, CA (United States) PTO; SCA: 010300; PA: EDB-96:024512; SN: 96001517637
- Patent Number(s):
- US 5,472,094/A/
- Application Number:
- PAN: 8-131,514
- Contract Number:
- FG22-87PC79865
- Resource Relation:
- Other Information: PBD: 5 Dec 1995
- Research Org:
- Electric Power Research Institute
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; COAL; FLOTATION; DESULFURIZATION; DEASHING; SEPARATION EQUIPMENT; DESIGN; COAL PREPARATION; OPERATION; PERFORMANCE