Ester-alcohol frothers for froth flotation of coal

Patent · Tue Mar 12 04:00:00 EST 1985

OSTI ID:5359787

Keys, R O

Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an ester-alcohol frothing agent. The preferred ester-alcohol frothing agents are reaction products of C/sub 1/-C/sub 10/ mono-basic carboxylic acids and diols wherein the total number of carbon atoms range from about 6-19 and monocarboxylic acid esters of polyoxyalkylene glycols which can contain up to 25-30 carbon atoms.

• Assignee: Sherex Chemical Co. Inc.
• Patent Number(s): US 4504385
• OSTI ID: 5359787
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ALCOHOLS
CARBONACEOUS MATERIALS
CARBOXYLIC ACID ESTERS
CHEMICAL COMPOSITION
COAL
COAL PREPARATION
DISPERSIONS
ENERGY SOURCES
ESTERS
FLOTATION
FOSSIL FUELS
FUELS
GLYCOLS
HYDROXY COMPOUNDS
MATERIALS
MIXTURES
ORGANIC COMPOUNDS
PROCESS SOLUTIONS
REAGENTS
SEPARATION PROCESSES
SOLUTIONS