The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1976
Filed:
Jan. 02, 1974
Tatsuo Shiraishi, Niihama, JA;
Susumu Kishiwada, Niihama, JA;
Shinkichi Shimizu, Niihama, JA;
Shigeru Honmaru, Niihama, JA;
Akihiko Atsumi, Funahashi, JA;
Hiroshi Ichihashi, Niihama, JA;
Yoshihiko Nagaoka, Niihama, JA;
Abstract
A catalytic process for the preparation of acrolein by the vapor phase oxidation of propylene which comprises contacting propylene and oxygen with a catalyst composition comprising a catalyst system of the formula: Mo.sub.a Bi.sub.b Fe.sub.c Ni.sub.d Tl.sub.e P.sub.f X.sub.g Y.sub.h O.sub.i wherein X is one or more of Mg, Mn and Co, Y is one or more of Cu, Ca, Sr, Zn, Cd, Sn and Pb and a, b, c, d, e, f, g, h and i represent respectively the number of atoms, provided that, when a is 12, b is 0.1 to 5, c is 0.1 to 12, d is 0.1 to 12, e is 1 or less but not 0, f is 0 to 5, g is 0 to 12, h is 0.1 to 12 and i is from 36 to 112. By such a process, acrolein is produced in a high selectivity and an excellent yield per each pass even at a large space velocity.