Abstract: A bleach catalyst suitable for use in automatic dishwashing comprising a mixed metal oxide.

Abstract: This application relates to a water treatment process. The process comprises contacting contaminated water with a catalyst, introducing hydrogen and an oxygen-containing gas into the contaminated water, and reacting hydrogen and oxygen in the presence of the catalyst and the contaminated water.

Abstract: A method of producing at least one compound comprising an alkenyl group from at least one compound comprising an alkyl group having two or more carbon atoms, the method comprising: (i) Providing a mixture comprising carbon dioxide and at least one compound comprising an alkyl group having two or more carbon atoms; and (ii) Contacting said mixture with a catalyst comprising one or both of palladium and platinum and one or more lanthanide, thereby converting at least a portion of the at least one compound comprising an alkyl group having two or more carbon atoms into a compound comprising an alkenyl group, the total of the weight of the palladium and/or platinum being more than 0.1 wt % of the catalyst.

Abstract: This application relates to a water treatment process. The process comprises contacting contaminated water with a catalyst, introducing hydrogen and an oxygen-containing gas into the contaminated water, and reacting hydrogen and oxygen in the presence of the catalyst and the contaminated water.

Abstract: Described herein is a supported catalyst for a liquid-phase reaction, the supported catalyst comprising a perovskite support comprising A-site species and B-site species and a catalytic component on a surface of the perovskite support. Also described herein is a method for tuning the selectivity of a supported catalyst.

Abstract: A method of producing at least one compound comprising an alkenyl group from at least one compound comprising an alkyl group having two or more carbon atoms, the method comprising: (i) Providing a mixture comprising carbon dioxide and at least one compound comprising an alkyl group having two or more carbon atoms; and (ii) Contacting said mixture with a catalyst comprising one or both of palladium and platinum and one or more lanthanide, thereby converting at least a portion of the at least one compound comprising an alkyl group having two or more carbon atoms into a compound comprising an alkenyl group, the total of the weight of the palladium and/or platinum being more than 0.1 wt % of the catalyst.

Abstract: A catalyst is provided, the catalyst comprising rods having mean length of 100 microns or less, the rods comprising a metal molybdate or tungstate, the metal being selected from the group consisting of iron, manganese, nickel, chromium, vanadium, aluminum, silver, titanium, copper, bismuth, and cobalt. A method of making such a catalyst is also provided.

Abstract: A catalyst effective for the direct reaction of hydrogen and oxygen to form hydrogen peroxide includes particles of gold, palladium or, preferably, gold and palladium deposited upon an acid-washed support. High selectivity to and production of hydrogen peroxide is observed, with low hydrogen peroxide decomposition. The catalysts have extended lifespan.

Abstract: A method of making one or more alcohols with a single hydroxy group, such as methanol and ethanol, the method comprising contacting a polyol and water with a basic catalyst. The polyol may be glycerol, for example. The catalyst may be magnesium oxide.

Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Particularly useful catalysts may include, for example, metal-modified ZSM-5 and other zeolites.

Abstract: A method of making one or more alcohols with a single hydroxy group, such as methanol and ethanol, the method comprising contacting a polyol and water with a basic catalyst. The polyol may be glycerol, for example. The '. catalyst may be magnesium oxide.

Abstract: A catalyst is provided, the catalyst comprising rods having mean length of 100 microns or less, the rods comprising a metal molybdate or tungstate, the metal being selected from the group consisting of iron, manganese, nickel, chromium, vanadium, aluminium, silver, titanium, copper, bismuth, and cobalt. A method of making such a catalyst is also provided.

Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Examples include zeolites modified with selected metals or metal oxides. Including copper, either in the catalyst, in a second catalyst of similar description, or as a homogeneous salt, increases both selectivity and activity of the process, particularly where an iron-containing catalyst is used.

Abstract: Hopcalite-type catalysts for oxidation of CO are formed by preparing a mixed-metal oxide precursor by firstly preparing a solution of a mixture of metal precursor compounds in a solvent, followed by contacting the solution with a supercritical antisolvent to precipitate the mixed-metal oxide precursor. A mixed-metal oxide may then be prepared from the precursor by oxidation, for example by calcination. The mixed-metal oxide is then collected and optionally activated for use as a catalyst. The activated or calcined catalyst contains a nano-structured mixed-phase composition comprising phase-separated intimately mixed nanoparticles of copper and manganese oxide.

Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Particularly useful catalysts may include, for example, metal-modified ZSM-5 and other zeolites.

Abstract: Hopcalite-type catalysts for oxidation of CO are formed by preparing a mixed-metal oxide precursor by firstly preparing a solution of a mixture of metal precursor compounds in a solvent, followed by contacting the solution with a supercritical antisolvent to precipitate the mixed-metal oxide precursor. A mixed-metal oxide may then be prepared from the precursor by oxidation, for example by calcination. The mixed-metal oxide is then collected and optionally activated for use as a catalyst. The activated or calcined catalyst contains a nano-structured mixed-phase composition comprising phase-separated intimately mixed nanoparticles of copper and manganese oxide.

Abstract: A catalyst effective for the direct reaction of hydrogen and oxygen to form hydrogen peroxide includes particles of gold, palladium or, preferably, gold and palladium deposited upon an acid-washed support. High selectivity to and production of hydrogen peroxide is observed, with low hydrogen peroxide decomposition. The catalysts have extended lifespan.

Abstract: A zeolite-immobilized Lewis acid e.g. copper catalyst for performing carbonyl-ene and iminoene reactions is described. The catalyst can readily be separated from the reaction mixture and re-used in further reactions with minimal reduction in activity.

Abstract: A solid catalyst for asymmetric hydrogenation reactions is disclosed comprising a chiral cationic metal-ligand complex immobilised on a mesoporous alumino-silicate support. The catalyst is formed by ion exchange with the acid sites of the support. The catalyst is reusable, and maintains its activity after use.

Abstract: A zeolite-immobilised Lewis acid e.g. copper catalyst for performing carbonyl-ene and iminoene reactions is described. The catalyst can readily be separated from the reaction mixture and re-used in further reactions with minimal reduction in activity.