Abstract: Polynuclear aromatic reactants are selectively hydrogenated in the presence of hydrogen gas with a zinc titanate catalyst.

Abstract: A stream comprising isobutylene and n-butenes is processed to effect dimerization of the isobutylene, and the resulting isobutylene dimer is fed to an alkylation step.

Abstract: In the precipitation of a tin-containing component and a phosphorus-containing component from an acid solution with a base to prepare a catalyst of improved selectivity to produce diolefin from corresponding mono-olefin there is used with the base, or thereafter, a water-soluble sulfide. The water-soluble sulfide can be at least one of an alkali-and an alkaline earth metal sulfide and ammonium sulfide.

Abstract: Hydrocarbon feedstocks are dehydrogenated to compounds having the same number of carbon atoms and a higher degree of unsaturation by contacting the feedstock in the vapor phase in the presence of molecular oxygen with a catalyst consisting essentially of nickel, lead, phosphorus and combined oxygen, and optionally, an alkali metal. Representative of such conversions is the oxidative dehydrogenation of butane to butenes and butadiene.

Abstract: Dehydrogenatable organic compounds diluted with steam, are dehydrogenated in the absence of free oxygen at high conversion and selectivity to less saturated compounds with a catalyst composite consisting essentially of one or more metals selected from the group consisting of Ni, Pd, Pt, Ir and Os, tin and a metal selected from the group consisting of gold and silver deposited on a support such as alumina, silica or a Group II aluminate spinel.

Abstract: Hydrocarbon feedstocks are dehydrogenated to compounds having the same number of carbon atoms and a higher degree of unsaturation by contacting the feedstock in the vapor phase in the presence of molecular oxygen with a catalyst consisting essentially of nickel, lead, phosphorus and combined oxygen, and optionally, an alkali metal. Representative of such conversions is the oxidative dehydrogenation of butane to butenes and butadiene.

Abstract: Organically polluted waters are purified by contacting with a solid copper-manganese-oxygen catalyst promoted with an iron group metal under oxidizing conditions. In one preferred embodiment, an aqueous stream obtained from the effluent of an oxidative dehydrogenation process containing contaminating oxygen-containing organic materials is subjected to oxidizing conditions in the presence of a copper-manganese-iron-oxygen catalyst to convert the water to a potable aqueous product.

Abstract: Acetylenic compounds are selectively removed by conversion to innocuous materials by contacting hydrocarbon mixtures containing same with a copper-tin and/or lead-zinc aluminate catalyst. In one embodiment, acetylenic compounds are selectively removed from unsaturated hydrocarbon-containing mixtures in a cyclic process comprising alternate contact of the catalyst with a gaseous hydrocarbon phase containing acetylenic contaminants and thereafter of the catalyst with an oxygen-containing gas to regenerate the catalyst.

Abstract: Organically polluted waters are purified by contacting with a solid copper-manganese-oxygen catalyst promoted with bismuth under oxidizing conditions. In one preferred embodiment, an aqueous stream obtained from the effluent of an oxidative dehydrogenation process containing contaminating oxygen-containing organic materials is subjected to oxidizing conditions in the presence of a copper-manganese-bismuth-oxygen catalyst to convert the water to an aqueous product.

Abstract: Acetylenic compounds are selectively removed from hydrocarbon mixtures containing same by oxidation in the presence of a solid copper-manganese-oxygen catalyst. In one embodiment, acetylenic compounds are selectively removed from a conjugated diene mixture containing same by contacting oxygen and a mixture with a copper manganite catalyst under oxidizing conditions.

Abstract: Acetylenic compounds are selectively removed from hydrocarbon mixtures containing same by oxidation in the presence of a copper-manganese-rare earth metal-zinc aluminate catalyst. In one embodiment, acetylenic compounds are selectively removed from a conjugated diene mixture containing same by contacting oxygen and the mixture with a catalyst of zinc aluminate promoted with copper, manganese, and a rare earth metal under oxidizing conditions.

Abstract: Organically polluted waters are purified by contacting with a solid copper-manganese-oxygen catalyst promoted with at least one Group II metal under oxidizing conditions. In one preferred embodiment, an aqueous stream obtained from the effluent of an oxidative dehydrogenation process containing contaminating oxygen-containing organic materials is subjected to oxidizing conditions in the presence of a copper manganite catalyst promoted with at least one Group II metal to convert the water to an aqueous product.

Abstract: Organically polluted waters are purified by contacting with a solid copper-manganese-oxygen catalyst under oxidizing conditions. In one embodiment, an aqueous stream obtained from the effluent of an oxidative dehydrogenation process containing contaminating oxygen-containing organic materials is subjected to oxidizing conditions in the presence of copper manganites to convert the water to a potable aqueous product.

Abstract: Organic compounds are dehydrogenated to compounds having a higher degree of unsaturation by contacting the feedstock in the vapor phase in the presence of an oxygen-containing gas with a catalyst containing tin in an oxidized state in combination with at least one of the metals bismuth, cobalt, or nickel in an oxidized state. Representative of such conversions is the oxidative dehydrogenation of butane to 1,3-butadiene over a nickel stannate-containing catalyst. The conversion products are valuable compounds particularly useful as intermediates for the preparation of polymeric materials such as synthetic rubbers and the like.

Abstract: Dehydrogenatable organic compounds diluted with steam, are dehydrogenated in the absence of free oxygen at high conversion and selectivity to less saturated compounds with a catalyst composite consisting essentially of one or more metals selected from the group consisting of Ni, Pd, Pt, Ir and Os, tin and a metal selected from the group consisting of gold and silver deposited on a support such as alumina, silica or a Group II aluminate spinel.

Abstract: Catalyst compositions comprising zinc aluminate promoted with at least one metal selected from metals of Groups IIIB, IVB, VB, VIB, VIII, IB, and VA and rare earth metals.