초록 ▼

Mixtures of an imidazoline quaternary salt and a nitrogen base having from zero to nine carbon atoms are added to oil slurries of solid particulate carbonaceous material such as a coal oil mixture (COM) or a coke oil mixture to stabilize the slurry during storage and dispensing at various temperatur

Mixtures of an imidazoline quaternary salt and a nitrogen base having from zero to nine carbon atoms are added to oil slurries of solid particulate carbonaceous material such as a coal oil mixture (COM) or a coke oil mixture to stabilize the slurry during storage and dispensing at various temperatures. The stabilizer mixtures of imidazoline quaternary salt and nitrogen base are added to either the oil or slurry (or during the grinding of the carbonaceous material) and are effective with or without the addition of water. Coal/coke oil slurries may contain from about 40 to about 90 parts by weight of oil, about 10 to about 60 parts by weight of powdered coal or coke, about 0.01 to about 6.0 parts by weight of the stabilizer mixture and about 0 to about 10 parts by weight of water. Useful stabilizer mixtures include a mixture of from about 99% to about 75% by weight of an imidazoline quaternary salt which is a reaction product of oleic acid, aminoethylethanolamine and diethyl sulfate and from about 1% to about 25% by weight of a nitrogen base such as urea.

대표청구항 ▼

An oil slurry of solid particulate carbonaceous material having a mixture of (a) from about 99% to about 75% by weight of an imidazoline quaternary salt of the formula [Figure] wherein: R is a hydrocarbon radical having 9 to 23 carbon atoms, R1 is a [Figure] R2 is hydrogen, an unsubstituted aliphati

An oil slurry of solid particulate carbonaceous material having a mixture of (a) from about 99% to about 75% by weight of an imidazoline quaternary salt of the formula [Figure] wherein: R is a hydrocarbon radical having 9 to 23 carbon atoms, R1 is a [Figure] R2 is hydrogen, an unsubstituted aliphatic hydrocarbon radical having 1 to 6 carbon atoms, a hydroxy-substituted aliphatic hydrocarbon radical having 1 to 6 carbon atoms or a benzyl radical, X is a water-soluble anion, and a is a number equal to the ionic valence of the anion, X, and (b) from about 1% to about 25% by weight of a nitrogen base having from 0 to 9 carbon atoms, the mixture being present in an amount sufficient to stabilize the slurry at elevated temperatures.