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2 039 740

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Application

93009600/04, 1993-02-24

(22)

Actual filing date

1993-02-24

(45)

Published

1995-07-20

(72)

Inventor

Kisil' I.M.Preobrazhenskij V.A.Zolin V.S.Gorodetskaja N.I.Davydov Ju.I.Polikarpov A.V.Salomykov V.I.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Azotnoj Promyshlennosti I Produktov Organicheskogo SintezaAktsionernoe Obshchestvo

METHOD OF UTILIZATION OF AQUEOUS-ACID LAYER - WASTE OF CAPROLACTAM PRODUCTION Russian patent published in 1995 - IPC

Abstract RU 2039740 C1

FIELD: waste processing. SUBSTANCE: method involves steaming from the water aqueous layer simultaneously with esterification of acids with cyclohexanol in the form of azeotropic mixture in the presence of catalyst tetrabutoxytitanium taken at concentration 0.1-1.0% of acid mass. EFFECT: improved method of utilization. 2 tbl

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RU 2 039 740 C1

Authors

Kisil' I.M.

Preobrazhenskij V.A.

Zolin V.S.

Gorodetskaja N.I.

Davydov Ju.I.

Polikarpov A.V.

Salomykov V.I.

Dates

1995-07-20—Published

1993-02-24—Filed

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