PREPARATION OF CATALYST, PREPARATION OF OUTER SHELL CATALYST, ACRYLIC ACID, ACROLEIN AND METHACROLEIN, AND METHOD OF CONTACT GAS PHASE OXIDATION

Japanese Patent JP3834087

B2

PROBLEM TO BE SOLVED: To enable thickness control of catalyst outer shell comprising active oxide and to give a sufficient specific area, when forming a liquid adhesive from water and organic compound, by specifying a mixing ratio of both material and physical property of organic compound.
SOLUTION: A carrier forming body is first moistened with a liquid adhesive. And after depositing by contacting an active oxide material of dried particles to the surface of the moistened carrier forming body, the liquid adhesive is removed from the moistened carrier forming body coated with the active oxide material. Consequently, a catalyst comprising the carrier forming body and the catalyst active oxide material provided on the surface of the carrier forming body is prepared. At this time as the liquid adhesive, a solution comprising 20-90 wt.% water and 10-80 wt.% organic compound 10 having boiling point or sublimation temperature of >100°C, preferably >150°C at atmosphere (1 atm) is used.

Andreas Tenten
Peter Weidrich
Gerd Linden

JP30912195A

October 18, 2006

November 28, 1995

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BASF Aktiengesellschaft

B01J23/34; B01J37/02; B01J21/16; B01J23/88; B01J23/885; B01J23/887; B01J27/192; B01J35/00; B01J35/02; B01J35/08; B01J35/10; C07B61/00; C07C27/00; C07C27/14; C07C45/32; C07C45/33; C07C45/35; C07C45/37; C07C47/22; C07C51/235; C07C51/25; C07C57/055; (IPC1-7): B01J37/02; B01J23/34; B01J23/88; B01J27/192; C07C27/00; C07C27/14; C07C45/35; C07C47/22; C07C57/055; //C07B61/00

JP56037050A
JP55159843A
JP56141842A
JP58119346A
JP2025443A
JP4279542A
JP6279030A

FR9403875A1

Toshio Yano
Toshiomi Yamazaki
Reinhard Einsel

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