Promoters for froth flotation of coal
Patent
·
OSTI ID:6156676
A froth flotation process is described where solid coal particles are selectively separated under coal froth flotation conditions as a froth phase from remaining solid feed ash particles as an aqueous phase in the presence of a coal particle collector and a frother, the improvement characterized by the addition of an effective proportion of a hydrophobic, non-ionic promoter comprising a C/sub 10/-C/sub 30/ nitrile or polynitrile thereof.
- Assignee:
- Sherex Chemical Co., Inc., Dublin, OH
- Patent Number(s):
- US 4678561
- OSTI ID:
- 6156676
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
ADDITIVES
AQUEOUS SOLUTIONS
ASHES
CARBONACEOUS MATERIALS
CATALYTIC EFFECTS
COAL
COAL FINES
DISPERSIONS
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
MATERIALS
MIXTURES
NITRILES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PROMOTERS
RESIDUES
SEPARATION PROCESSES
SOLUTIONS
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
ADDITIVES
AQUEOUS SOLUTIONS
ASHES
CARBONACEOUS MATERIALS
CATALYTIC EFFECTS
COAL
COAL FINES
DISPERSIONS
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
MATERIALS
MIXTURES
NITRILES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PROMOTERS
RESIDUES
SEPARATION PROCESSES
SOLUTIONS