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Filtration of a coal liquid slurry using polyisobutylene and an alcohol

Patent ·
OSTI ID:6162459
;
The rate of filtration of a coal liquid slurry is increased by adding polyisobutylene 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 polyisobutylene prior to filtration. Although the polyisobutylene and the alcohol each provides a filtration 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 4260485
OSTI ID:
6162459
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010407 -- Coal & Coal Products-- Solvent Extraction-- (-1987)
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ADDITIVES
ALCOHOLS
CARBONACEOUS MATERIALS
COAL
COAL LIQUIDS
DISPERSIONS
ENERGY SOURCES
FILTRATION
FLUIDS
FOSSIL FUELS
FUEL SLURRIES
FUELS
HYDROXY COMPOUNDS
LIQUIDS
MATERIALS
MINERALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYOLEFINS
SEPARATION PROCESSES
SLURRIES
SOLVENT-REFINED COAL
SUSPENSIONS