METHOD OF PREPARING DEPRESSANT FOR PETROLEUM PRODUCT Russian patent published in 2002 - IPC

Abstract RU 2181136 C1

FIELD: fuel and lube oil technology. SUBSTANCE: synthetic fatty acids C21-C25 fraction, pentaerythritol, and phthalic anhydride are brought into interaction followed by condensation with polyethylenepolyamines at molar ratio 2.0 : 1.0 : (1.0- 1.5) : (0.1-2.0), respectively. Freezing point of petroleum products with resulting depressant is lowered by 6 to 13 C. EFFECT: increased depressant activity. 2 tbl

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RU 2 181 136 C1

Authors

Agaev Slavik Gamid Ogly

Glazunov A.M.

Dates

2002-04-10—Published

2000-12-04—Filed