Frothers demonstrating enhanced recovery of coarse particles in froth flotation

Patent · Mon Apr 14 23:00:00 EST 1986

OSTI ID:5564669

Hansen, R D; Bergman, R W; Klimpel, R R

A process is described for recovering coal or metal values from raw coal or metal ore which comprises subjecting the raw coal or metal ore in the form of an aqueous pulp, to a flotation process in the presence of a flotation collector for coal or metal values and a flotating amount of a flotation frother which comprises the reaction product of a monohydroxy aliphatic C/sub 6/ alcohol and between about 1 and 5 moles of propylene oxide, butylene oxide or mixtures thereof, under conditions such that the coal or metal values are recovered in the froth.

• Assignee: Dow Chemical Co., Midland, MI
• Patent Number(s): US 4582596
• OSTI ID: 5564669
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ALCOHOLS
ALKENES
AQUEOUS SOLUTIONS
BUTENES
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
COAL FINES
COAL PREPARATION
DISPERSIONS
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROXY COMPOUNDS
MATERIALS
MIXTURES
ORES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PROPYLENE
QUANTITY RATIO
REAGENTS
SEPARATION PROCESSES
SOLUTIONS