Patent number: 5068215
Abstract: A multi-component oxide catalyst comprising zinc and an alkali metal is described which is useful particularly for converting methane and/or natural gas to higher molecular weight hydrocarbon products such as ethane and ethylene. The catalyst is characterized by the formulaZn.sub.a A.sub.b M.sub.c M'.sub.d O.sub.xwhereinA is Li, Na, K, or mixtures thereof;M is Al, Ga, Cr, La, Y, Sc, V, Nb, Ta, Cu or mixtures thereof;M' is Cs, Rb, Mg, Ca, Sr, Ba, Sm, Pb, Mn, Sb, P, Sn, Bi, Ti, Zr, Hf, or mixtures thereof;a is from about 1 to about 20;b is from about 0.1 to about 20;c is from about 0 to about 5;d is from about 0 to about 20; andx is a number needed to fulfill the valence requirements of the other elements; provided that(i) at least one of c and d is at least 0.1; and(ii) when M' is Sn, c must be at least 0.1.
Type:
Grant
Filed:
December 11, 1989
Date of Patent:
November 26, 1991
Assignee:
Standard Oil Company
Inventors:
Joseph P. Bartek, James F. Brazdil, Jr., John M. Hupp, Robert K. Grasselli
Patent number: 5053577
Abstract: High-temperature, attrition resistant, oxidation catalysts are disclosed. These catalysts are represented by the formulaA.sub.u MO.sub.w [(DO.sub.x)(EO.sub.y).sub.a ].sub.zwherein A is an alkali or alkaline earth metal; M is V, Cr, Mo, Mn, Fe, Co, Ni, Cu or a mixture of two or more thereof; D is Zr, Ti, Hf, Ce, Th, Pr, Nb, Ta, W, Re or a mixture of two or more thereof; E is Ca, Mg, Sr, Ba, Y, La, Yb, Sm, Gd, Nd, Sc, V, Bi, Ce, Pr, Eu, Tb, Dy, Ho, Er, Tm, Lu or a mixture of two or more thereof; a is a number in the range of zero up to about 0.2; u is a number in the range of zero to about 1; w is the number of oxygens needed to fulfill the valence requirement of A and M; x is the number of oxygens needed to fulfill the valence requirements of D; y is the number of oxygens needed to fulfill the valence requirements of E; and z is a number in the range of about 10 to about 100. The invention further provides for the use of such catalysts in processes involving the combustion of organic materials (e.g.
Type:
Grant
Filed:
May 25, 1990
Date of Patent:
October 1, 1991
Assignee:
The Standard Oil Company
Inventors:
Raymond G. Teller, Ann M. Ebner, Christopher Bodolus, Victor R. Gupta