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2 042 619

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C1

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IPC

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Application

5067621/26, 1992-10-17

(22)

Actual filing date

1992-10-17

(45)

Published

1995-08-27

(72)

Inventor

Konstantinov I.I.Melent'Eva T.I.Kormushechkina A.I.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Karbamida I Produktov Organicheskogo Sinteza S Opytnym Zavodom

METHOD OF PHOSGENE SYNTHESIS Russian patent published in 1995 - IPC

Abstract RU 2042619 C1

FIELD: chemical technology. SUBSTANCE: method involves feeding CCl4 and CO2 in the quartz tube at the mole ratio (0.2-7.5):1. Interaction is carried out in the presence of catalyst: nickel, alloys of nickel with chrome and their chlorides, activated carbon, at 350-550 C. Method is used for isocyanate and carbonate preparing. EFFECT: improved method of synthesis. 1 tbl

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RU 2 042 619 C1

Authors

Konstantinov I.I.

Melent'Eva T.I.

Kormushechkina A.I.

Dates

1995-08-27—Published

1992-10-17—Filed

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