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2 113 435

(13)

(51)

IPC

(21) (22)

Application

93005167/04, 1991-11-28

(22)

Actual filing date

1991-11-28

(45)

Published

1998-06-20

(72)

Inventor

Kornelis Gerardus Marija Van De MusdejkKhendrik Jan JanssenJosefus Kornelus Skhrojehn

(73)

Holder

Dsm N.V.

METHOD OF TREATING GAS STREAM WHEN PREPARING MELAMINE FROM UREA OR THERMAL DECOMPOSITION UREA PRODUCTS Russian patent published in 1998 - IPC

Abstract RU 2113435 C1

FIELD: chemical industry. SUBSTANCE: gas effluent from synthesis reactor is contacted with steam at 100-500 C in the presence of selective hydrolysis catalyst with micropores of effective diameter of 0.3-2.0 mm. Said catalyst has 50 active centers located in micropores. EFFECT: more efficient treatment method. 9 cl, 1 dwg , 6 tbl

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RU 2 113 435 C1

Authors

Kornelis Gerardus Marija Van De Musdejk

Khendrik Jan Janssen

Josefus Kornelus Skhrojehn

Dates

1998-06-20—Published

1991-11-28—Filed