Flotation machine and process for removing impurities from coals

Patent · Tue Feb 11 00:00:00 EST 1997

OSTI ID:441862

Szymocha, K; Ignasiak, B; Pawlak, W; Kulik, C; Lebowitz, H E

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 minerals 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.

• Research Organization: Electric Power Research Institute
• DOE Contract Number: FG22-87PC79865
• Assignee: Electric Power Research Inst., Inc., Palo Alto, CA (United States)
• Patent Number(s): US 5,601,703/A/
• Application Number: PAN: 8-567,191
• OSTI ID: 441862
• Resource Relation: Other Information: PBD: 11 Feb 1997
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL PREPARATION
FLOTATION
SEPARATION EQUIPMENT
COAL
DESULFURIZATION
DEASHING
DESIGN
OPERATION