Patent ID: 8288306
Filing Date: 2012-10-16
Classification: B01J,C07C

Abstract:
1. A complex oxide catalyst for gas phase oxidation of light alkenes to unsaturated aldehydes, having a general formula x(Mo 12 Bi a Fe b Co c A d D e O f )/yZ, wherein Mo 12 Bi a Fe b Co c A d D e O f is active components of the catalyst; Mo, Bi, Fe, Co and O represent molybdenum, bismuth, iron, cobalt, and oxygen respectively; A represents at least one selected from a group consisting of W, V, Zn, Cr, Mn, Sn, Pb, B, Te, Ce, La, and Re; D represents at least one selected from a group consisting of K, Rb, Cs, Sr, Mg and Ba; Z is a heat conduction agent of the catalyst; Z is one or more selected from a group consisting of silicon powder, SiC, graphite and carbon fiber; a˜e represent an atomic ratio of corresponding elements respectively, a=0.05˜8, b=0.05˜10, c=0.5˜15, d=0.01˜5, e=0.01˜3; f is the number of oxygen atoms which satisfies the atomic valences of the other elements; x and y represent the amount of the catalyst active components and the heat conduction agent Z, respectively, y/(x+y)=0˜70% (weight).