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2 049 774

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IPC

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Application

4933131/63, 1991-05-05

(22)

Actual filing date

1991-05-05

(45)

Published

1995-12-10

(72)

Inventor

Konstantinov I.I.Kormushechkina A.I.

(73)

Holder

Nauchno-Issledovatel'Skij I Proektnyj Institut Karbamida I Produktov Organicheskogo Sinteza

METHOD FOR PRODUCTION OF ORGANIC ISOCYANATE Russian patent published in 1995 - IPC

Abstract RU 2049774 C1

FIELD: organic chemistry. SUBSTANCE: method involves adding amine solution into phosgene solution followed by heating reaction mixture and by isolation of desired product. Mentioned above adding is carried out by elimination of heat within 60-280 s, initial temperature being (-3)-(-9) C, final temperature being 15-25 C. EFFECT: improves efficiency of method. 1 tbl

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RU 2 049 774 C1

Authors

Konstantinov I.I.

Kormushechkina A.I.

Dates

1995-12-10—Published

1991-05-05—Filed

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