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Filtration of a coal liquid slurry using an alkylmethacrylate copolymer and an alcohol

Patent ·
OSTI ID:6212088
;
The rate of filtration of a coal liquid slurry is increased by adding an alkylmethacrylate copolymer and an alcohol containing 2 to 10 carbon atoms to the slurry prior to filtration or by adding the alcohol to the slurry and washing a precoat cake of filter aid with an oil solution of an alkylmethacrylate copolymer prior to filtration. Although the alkylmethacrylate copolymer and the alcohol each provide a filter rate improving effect when used alone, a synergistic improvement in filtration rate is achieved by their combined use.
Assignee:
Gulf Research and Development Co
Patent Number(s):
US 4255258
OSTI ID:
6212088
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
ALCOHOLS
CARBONACEOUS MATERIALS
COAL
COAL LIQUIDS
COPOLYMERS
DISPERSIONS
ENERGY SOURCES
FILTRATION
FLUIDS
FOSSIL FUELS
FUEL SLURRIES
FUELS
HYDROXY COMPOUNDS
LIQUIDS
MATERIALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
SEPARATION PROCESSES
SLURRIES
SRC PROCESS
SUSPENSIONS