Catalytic oxidation of alkanes to corresponding acids
AssigneeSaudi Basic Industries Corporation
InventorsKhalid Karim, Yajnavalkya Subrai Bhat, Syed Irshad Zaheer, Abdullah Bin Nafisah, Asad Ahmed Khan
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Abstract
A mixed metal oxide Mo—V—Ga—Pd—Nb—X catalytic system, where X is selected from La, Te, and Zn, provides the oxidation of C2-C8 hydrocarbons to corresponding acids with a molecular oxygen-containing gas.
Claims16
A process for oxidation of C2-C8 alkane and alkane hydrocarbons to corresponding acids comprising contacting said hydrocarbons under oxygenating conditions with a mixed metal oxide catalyst system containing a catalyst composition comprising ModVbGacPddNbeXf
- wherein:
- X=at least one element selected from La, Te, and Zn;
- a is 1;
- b is 0.01 to 0.9;
- 0<c≦0.2;
- d is 0.0000001 to 0.2;
- 0<e≦0.2;
- 0<f≦0.5;
- and
- wherein the numerical values of a, b, c, d, e and f represent the relative gram-atom ratios of the elements Mo, V, Ga, Pd, Nb and X, respectively, in the catalyst composition and the elements are present in combination with oxygen.
A single stage catalytic process for direct conversion of C2-C8 alkanes to corresponding acids comprising oxidizing the alkane(s) in a reaction mixture comprising (i) C2-C8 alkane and (ii) oxygen or a compound capable of providing oxygen in a reaction zone in the presence of a mixed metal oxide catalyst system containing a catalyst composition comprising ModVbGacPddNbeXf
- wherein:
- X=at least one element selected from La, Te, and Zn;
- a is 1;
- b is 0.01 to 0.9;
- 0<c≦0.2;
- d is 0.0000001 to 0.2;
- 0<e≦0.2;
- 0<f≦0.5;
- and
- wherein the numerical values of a, b, c, d, e and f represent the relative gram-atom ratios of the elements Mo, V, Ga, Pd, Nb and X, respectively, in the catalyst and the elements are present in combination with oxygen.
A process for oxidizing one or more fluid phase reactants comprising C2-C8 alkanes or alkenes and alpha-beta unsaturated aliphatic aldehydes and oxygen to corresponding alpha-beta unsaturated carboxylic acids in fluid phase comprising contacting said reactants under suitable reaction conditions with a mixed metal oxide catalyst system containing a catalyst composition comprising MoaVbGacPddNbeXf;
- wherein:
- X=at least one element selected from La, Te, and Zn;
- a is 1;
- b is 0.01 to 0.9;
- 0<c≦0.2;
- d is 0.0000001 to 0.2;
- 0<e≦0.2;
- and
- F 0<f≦0.5.
Dependencies are inferred from the claim text.