Patent number: 4245118
Abstract: Catalysts for the oxidation of unsaturated aldehydes, said catalysts being expressed by the formulaA.sub.a B.sub.b C.sub.c Mo.sub.d P.sub.e O.sub.fwherein A represents at least one element selected from K, Rb, Cs and Tl; B represents at least one element selected from Be, Ag, Y, La, Nd, Sm and Hf; C represents at least one element selected from V, Cr, Ba, Sr, Al, Sn, Pb, Mn, Zr, W and Bi; a, b, c, d, e and f are the number of the atoms of A, B, C, Mo, P and O, respectively; and when d is 12, a, b and e are independently 0.05 to 12, c is 0 to 12, and f is the number of oxygen atoms which satisfies the valences of the other elements.
Type:
Grant
Filed:
January 8, 1979
Date of Patent:
January 13, 1981
Assignee:
Nippon Zeon Co., Ltd.
Inventors:
Haruhisa Yamamoto, Kiyomori Ooura, Shinichi Akiyama