Sludge inhibitor for hydrocarbon oils

Details Sludge inhibitor for hydrocarbon oils Sludge inhibitor for hydrocarbon oils

C - Chemistry, Metallurgy

07

D

253/100, 44/15,

C07D 273/00 (2006.01) C10M 3/26 (1980.01)

Patent

CA 1066273

ABSTRACT OF THE DISCLOSURE A tetrahydric alcohol derived from urea or thiourea and an alkanol amine is esterified with a long chain monocarboxylic acid or dicarboxylic acid, producing an additive that is very effective in reducing the sludging tendencies of hydrocarbon oils. The additive is particularly useful for stabilizing hydrotreated lubricants and fuel stocks against the deposition of sludge when exposed to sunlight.

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