FIELD: chemistry.
SUBSTANCE: present invention relates to highly concentrated anhydrous amine salts of hydrocarbon polyalkoxy sulfates, said salts being selected from a group of substituted amines, preferably alkanolamines. Products obtained have a low viscosity and are pumpable at room temperature. Owing to the absence of water, the salts are highly hydrolysis-stable, even at high temperatures. Invention also relates to the use of the composition containing said salts diluted in water for use in mineral oil deposits. Invention is developed in dependent claims of the formula.
EFFECT: improved oil recovery or recovery of hydrocarbons from tar sands or other surfaces or materials containing hydrocarbons.
35 cl, 2 ex, 3 tbl
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