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2 009 171

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C1

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IPC

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Application

5059202/04, 1992-08-19

(22)

Actual filing date

1992-08-19

(45)

Published

1994-03-15

(72)

Inventor

Kutsevalov V.V.Kukanova K.P.Dumskij Ju.V.Vinogradov O.I.Pichugin Ju.P.Folijants A.E.

(73)

Holder

Vsesojuznyj Nauchno-Issledovatel'Skij I Konstruktorsko-Tekhnologicheskij Institut Oborudovanija Neftepererabatyvajushchej I Neftekhimicheskoj Promyshlennosti

METHOD FOR PRODUCING THERMOWAXES Russian patent published in 1994 - IPC

Abstract RU 2009171 C1

FIELD: petroleum industry. SUBSTANCE: thermowax is prepared by dissolving in organic solvent vat residue of synthetic cerezine distillation. Solution is crystallized and filtered at 78-82 C to prepare filtrate and precipitate. The latter is washed on the same filter at mentioned above temperature. Filtrate is heated till transparent solution is produced and filtered at 60-65 C. Thus isolated precipitate is washed at said temperature. Thermowax is prepared of precipitate after distillation of solvent. EFFECT: improves efficiency of the method. 2 tbl

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RU 2 009 171 C1

Authors

Kutsevalov V.V.

Kukanova K.P.

Dumskij Ju.V.

Vinogradov O.I.

Pichugin Ju.P.

Folijants A.E.

Dates

1994-03-15—Published

1992-08-19—Filed

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