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Polyorganosiloxane collectors in the beneficiation of fine coal by froth flotation

Patent ·
OSTI ID:6506899
;
A froth flotation process for the beneficiation of fine coal is disclosed which employs as a collector a water-dispersible polyorganosiloxane or a mixture of water-dispersible polyorganosiloxanes which contain either aryl radicals or aryl radicals combined with polyethylene oxide and polypropylene oxide radicals. Preferred polyorganosiloxanes are those which contain both aryl radicals and polyethylene oxide and/or polypropylene oxide radicals. The process of this invention is especially useful for the beneficiation of difficult-to-float fine coals.
Assignee:
Dow Corning Corp.
Patent Number(s):
US 4532032
OSTI ID:
6506899
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ADDITIVES
ALCOHOLS
AQUEOUS SOLUTIONS
ARYL RADICALS
CHALCOGENIDES
CHEMICAL COMPOSITION
COAL FINES
COAL PREPARATION
DISPERSIONS
FLOTATION
GLYCOLS
HYDROXY COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYETHYLENE GLYCOLS
POLYMERS
POLYOLEFINS
POLYPROPYLENE
PROCESS SOLUTIONS
RADICALS
SEPARATION PROCESSES
SILOXANES
SOLUTIONS