LUBE FRACTION PURIFICATION PROCESS Russian patent published in 2005 - IPC

Abstract RU 2243986 C1

FIELD: petroleum processing.

SUBSTANCE: selective purification of lube oils with selective organic solvents involves oxidation of lube oils followed by treatment thereof with solvents. Possible oxidants are aqueous solutions of hydrogen peroxide, a hydroperoxide, and hypochlorite. Possible selective solvent are N-methylpyrrolidone and aqueous phenol with up to 50% water. Oil may also be preliminarily deparaffinized.

EFFECT: avoided necessity of using complex equipment and minimized expenses on reconstruction purification installation.

4 cl, 5 tbl, 10 ex

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RU 2 243 986 C1

Authors

Nigmatullin V.R.

Sharipov V.A.

Nigmatullin I.R.

Dates

2005-01-10—Published

2003-10-02—Filed