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2 068 413

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C1

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IPC

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Application

5064162/04, 1992-05-26

(22)

Actual filing date

1992-05-26

(45)

Published

1996-10-27

(72)

Inventor

Kolesov B.S.Korkin E.G.Krasukhina M.I.Khinich G.A.

(73)

Holder

Proizvodstvennoe Ob"Edinenie Khimicheskij Kombinat Im.A.A.Kosjakova"

PROCESS FOR TREATING DISTILLATION RESIDUES OF PHTHALIC ANHYDRIDE Russian patent published in 1996 - IPC

Abstract RU 2068413 C1

FIELD: chemical industry. SUBSTANCE: product: distillation residues of phthalic anhydride. Reagent 1: distillation residues. Reagent 2: ethyl hexanol at optimum content thereof within 17-20 wt%. Reaction conditions: in order to keep distillation residues in flowing state, treatment is carried out at 110-135 C. EFFECT: more efficient treatment process. 1 tbl

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RU 2 068 413 C1

Authors

Kolesov B.S.

Korkin E.G.

Krasukhina M.I.

Khinich G.A.

Dates

1996-10-27—Published

1992-05-26—Filed

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