METHOD OF CRYSTALLIZATION OF HIGH-MELTING HYDROCARBONS Russian patent published in 1999 - IPC

Abstract RU 2140968 C1

FIELD: oil refining of medium-melting or high-melting paraffins and ceresines. SUBSTANCE: in order to recrease yield of high-melting hydrocarbons and to increase filtration rate in front of crystallizers, solution is cooled to turbidity temperature, and suspension is maintained in rotor-disc contactor or container with stirring device at low cooling rate. Method makes it possible to increase yield of paraffins and also to improve qualitative characteristics thereof and to increase filtration rate by 20-30%. EFFECT: more efficient crystallization method. 1 dwg, 11 tbl

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RU 2 140 968 C1

Authors

Sajfullin N.R.

Nigmatullin R.G.

Zolotarev P.A.

Kalimullin M.M.

Nigmatullin V.R.

Dates

1999-11-10—Published

1996-11-04—Filed