Abstract: The invention relates to a process for preparing a catalyst for alkane oxidative dehydrogenation and/or alkene oxidation, which catalyst is a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium, wherein the process comprises: a) preparing a catalyst precursor containing molybdenum, vanadium, niobium and optionally tellurium; b) optionally contacting the catalyst precursor obtained in step a) with oxygen and/or an inert gas at an elevated temperature; c) contacting the catalyst precursor obtained in step a) or step b) with a gas mixture comprising ammonia and water, which gas mixture further comprises oxygen and/or an inert gas, at an elevated temperature; and d) optionally contacting the catalyst precursor obtained in step c) with an inert gas at an elevated temperature.

Abstract: The invention relates to a catalyst which comprises: a) a mixed metal oxide of molybdenum, vanadium, niobium and optionally tellurium; and b) ceria particles having a crystallite size greater than 15 nanometers (nm); wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Further, the invention relates to a process for preparing a catalyst, which comprises mixing a mixed metal oxide of molybdenum, vanadium, niobium and optionally tellurium with ceria particles having a crystallite size greater than 15 nanometers (nm), wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Still further, the invention relates to an alkane oxidative dehydrogenation and/or alkene oxidation process wherein such catalyst is used.

Abstract: The invention relates to a process for preparing a shaped catalyst for alkane oxidative dehydrogenation and/or alkene oxidation, which comprises: a) preparing a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium; b) mixing the catalyst obtained in step a), a binder and optionally water, wherein the binder has a surface area greater than 100 m2/g and a water loss upon heating at a temperature of 485° C. which is greater than 1 wt. %; c) shaping the mixture obtained in step b) to form a shaped catalyst by means of tableting; and d) subjecting the shaped catalyst obtained in step c) to an elevated temperature. Further, the invention relates to a catalyst obtainable by said process and to a process of alkane oxidative dehydrogenation and/or alkene oxidation wherein said catalyst is used.

Abstract: The invention relates to a process for preparing a catalyst for alkane oxidative dehydrogenation and/or alkene oxidation, which catalyst is a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium, wherein the process comprises: a) preparing a catalyst precursor containing molybdenum, vanadium, niobium and optionally tellurium; b) optionally contacting the catalyst precursor obtained in step a) with oxygen and/or an inert gas at an elevated temperature; c) contacting the catalyst precursor obtained in step a) or step b) with a gas mixture comprising ammonia and water, which gas mixture further comprises oxygen and/or an inert gas, at an elevated temperature; and d) optionally contacting the catalyst precursor obtained in step c) with an inert gas at an elevated temperature.

Abstract: The invention relates to a catalyst which comprises: a) a mixed metal oxide of molybdenum, vanadium, niobium and in optionally tellurium; and b) ceria particles having a crystallite size greater than 15 nanometers (nm); wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Further, the invention relates to a process for preparing a catalyst, which comprises mixing a mixed metal oxide of molybdenum, vanadium, niobium and optionally tellurium with ceria particles having a crystallite size greater than 15 nanometers (nm), wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Still further, the invention relates to an alkane oxidative dehydrogenation and/or alkene oxidation process wherein such catalyst is used.

Abstract: A process for the hydrogenation or hydrogenolysis of an oxygenate is disclosed. The process takes place in a reactor in the presence of a catalyst, hydrogen and liquid water and the catalyst comprises one or more elements from Groups 8 to 11 of the periodic table dispersed on a hydrothermally stable oxide support.

Abstract: A process for the preparation of a catalyst composition for catalysing hydrogenation and hydrogenolysis reactions wherein, (a) a carbon support is contacted with a catalyst precursor solution comprising at least one element from groups 7, 8, 9, 10 and 11 of 5 the periodic table to form a metal impregnated carbon; (b) the metal impregnated carbon is dried at a temperature of no greater than 400° C. and placed in a reactor vessel; (c) the reactor vessel is sealed; and (d) the metal impregnated carbon is treated in the reactor 10 vessel in an atmosphere comprising hydrogen at a temperature of from 25° C. to 350 ° C.

Abstract: A process for recovering a metallic component from a hydrocarbon product stream is disclosed. The hydrocarbon product stream is subjected to a thermal oxidation. A process for preparing glycols from a saccharide-containing feedstock is additionally disclosed.

Abstract: A process for the preparation of a catalyst composition for catalysing hydrogenation and hydrogenolysis reactions wherein, (a) a carbon support is contacted with a catalyst precursor solution comprising at least one element from groups 7, 8, 9, 10 and 11 of 5 the periodic table to form a metal impregnated carbon; (b) the metal impregnated carbon is dried at a temperature of no greater than 400° C. and placed in a reactor vessel; (c) the reactor vessel is sealed; and (d) the metal impregnated carbon is treated in the reactor 10 vessel in an atmosphere comprising hydrogen at a temperature of from 25° C. to 350 ° C.

Abstract: The invention concerns catalyst or a catalyst carrier comprising 35 to 99.9 wt % of metal oxide and 0.1 to 50 wt % of silanized silica particles, calculated on the total weight of the catalyst or catalyst carrier. The invention further relates to a process to prepare the catalyst or catalyst carrier. The invention also relates to the use of the catalyst, or a catalyst comprising the catalyst carrier, in a catalytic reaction.

Abstract: A catalytic process for the hydrogenation or hydrogenolysis of a reactant in a reactor in the presence of hydrogen and liquid water is disclosed. The catalyst is stable under hydrothermal conditions.

Abstract: A process for recovering a metallic component from a hydrocarbon product stream is disclosed. The hydrocarbon product stream is subjected to a thermal oxidation. A process for preparing glycols from a saccharide-containing feedstock is additionally disclosed.

Abstract: The invention provides a process for modifying a Fischer-Tropsch catalyst or catalyst precursor, the process comprising the steps of: contacting a Fischer-Tropsch catalyst or catalyst precursor comprising a titania carrier with a compound having the general formula RaX(4-a)Y wherein a is in the range of 1-3, and wherein the or each R is independently an alkyl or aryl group; Y is silicon or titanium, and, the or each X is independently chosen from the group consisting of hydrogen, an alkoxy group and ZY?BB?B2?, Z being oxygen, —NH, or —NR, wherein R is an alkyl or aryl group comprising 1 to 8 carbon atoms, Y? being silicon or titanium, and B, B? and B2 ,independently being hydrogen or an alkyl, aryl, or alkoxy group. In a preferred embodiment the compound RaX(4-a)Y is hexamethyldisilazane.