Terpolymers of ethyl acrylate/methacrylic acid/unsaturated acid ester of alcohols and acids as anti-settling agents in coal water slurries
This patent describes a pumpable stabilized coal water slurry, having a coal content of at least about 50% by weight wherein at least 80% of the coal particles are about 200 mesh or finer, containing from about 0.01% to about 1% by weight of the slurry of a water soluble terpolymer of ethylacrylate (A), metacrylic acid (B) and a third monomer (C) selected from the group consisting of an unsaturated carboxylic acid ester of an alcohol and an ethoxylated carboxylic acid. The unsaturated carboxylic acid is a mono- or di- basic unsaturated carboxylic acid of 3 to 10 carbon atoms selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, fumaric acid, and maleic acid.
- Assignee:
- Diamond Shamrock Chemical Co., Dallas, TX
- Patent Number(s):
- US 4744795
- OSTI ID:
- 6963341
- Country of Publication:
- United States
- Language:
- English
Similar Records
MODIFIED SYNTHETIC CONDENSATION POLYMERS AND THEIR PRODUCTION
Fluid loss agents for oil well cementing composition
Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ACRYLATES
ACRYLIC ACID
ADDITIVES
ALCOHOLS
ALKYL RADICALS
CARBONACEOUS MATERIALS
CARBOXYLIC ACID ESTERS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
COAL
DISPERSIONS
ENERGY SOURCES
ESTERS
ETHYL RADICALS
FOSSIL FUELS
FUEL ADDITIVES
FUEL SLURRIES
FUELS
HYDRAULIC TRANSPORT
HYDROXY COMPOUNDS
MATERIALS
METHACRYLIC ACID ESTERS
MIXTURES
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
POLYMERS
PUMPING
RADICALS
SLURRIES
SUSPENSIONS
TRANSPORT