Process for the selective conversion of alkanes to unsaturated carboxylic acids
AssigneeSaudi Basic Industries Corporation
InventorPaulette N. Hazin
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Abstract
The invention disclosed is a process for the selective conversion of an alkane to an unsaturated carboxylic acid in a one-step process with a mixed metal oxide catalyst composition having the general formula: MoVaNbbTecSbdMeOx wherein M is optional and may be one or more selected from silver, silicon, sulfur, zirconium, titanium, aluminum, copper, lithium, sodium, potassium, rubidium, cesium, gallium, phosphorus, iron, rhenium, cobalt, chromium, manganese, arsenic, indium, thallium, bismuth, germanium, tin, cerium or lanthanum. This catalyst may be prepared by co-precipitation of metal compounds which are calcined to form a mixed metal oxide catalyst.
Claims28
A process for producing an unsaturated carboxylic acid from an alkane comprising:
- contacting an alkane and molecular oxygen with a catalyst composition of the formula:
- MoVaNbbTecSbdMeOx
- wherein Mo is molybdenum, V is vanadium, Nb is niobium, Te is tellurium, Sb is antimony and M is one or more elements selected from the group consisting of silver, silicon, sulfur, zirconium, titanium, aluminum, copper, lithium, sodium, potassium, rubidium, cesium, gallium, phosphorus, iron, rhenium, cobalt, chromium, manganese, arsenic, indium, thallium, bismuth, germanium, tin, cerium and lanthanum;
- a is 0.05 to 0.99;
- b is 0.01 to 0.99;
- c is 0.01 to 0.15;
- d is 0.01 to 0.2;
- e is 0 to 0.5;
- and x is determined by the valence requirements of the other components of the catalyst composition.
A process for producing acrylic acid from propane comprising:
- contacting propane and molecular oxygen with a catalyst composition of the formula:
- MoVaNbbTecSbdMeOx
- wherein Mo is molybdenum, V is vanadium, Nb is niobium, Te is tellurium, Sb is antimony and M is one or more elements selected from the group consisting of silver, silicon, sulfur, zirconium, titanium, aluminum, copper, lithium, sodium, potassium, rubidium, cesium, gallium, phosphorus, iron, rhenium, cobalt, chromium, manganese, arsenic, indium, thallium, bismuth, germanium, tin, cerium and lanthanum;
- a is 0.05 to 0.99;
- b is 0.01 to 0.99;
- c is 0.01 to 0.15;
- d is 0.01 to 0.2;
- e is 0 to 0.5;
- and x is determined by the valence requirements of the other components of the catalyst composition.
Dependencies are inferred from the claim text.