Patent
Catalyst for hydrogenation of organic compounds
TLDR
In this paper, a sulfide hydrogenation catalysts are formed by impregnating a suitable support material with an aqueous solution of a salt of a transition metal; heat-treating the impregnated support at a temperature above 500 DEG F. to form chemical complexes on the surface of the support and to drive off moisture and absorbed oxygen; contacting the supported metal complex with hydrogen sulfide; activating the surface complex by contacting supported metal sulfide complex with a soluble organometallic compound wherein the metal constituent is selected from Groups I, II and III of theAbstract:
Novel sulfided hydrogenation catalysts are formed by impregnating a suitable support material with an aqueous solution of a salt of a transition metal; heat-treating the impregnated support at a temperature above 500 DEG F. to form chemical complexes on the surface of the support and to drive off moisture and absorbed oxygen; contacting the supported metal complex with hydrogen sulfide; activating the surface complex by contacting the supported metal sulfide complex with a soluble organometallic compound wherein the metal constituent is selected from Groups I, II and III of the Periodic Chart of the Elements, and thereafter treating the activated support material in the presence of a gaseous stream containing hydrogen at a temperature of at least 300 DEG F. to form a highly stable heterogeneous sulfided catalyst. The novel supported catalysts of the instant invention have been found to be highly active for the hydrogenation of organic feedstocks containing sulfur under extremely mild conditions.read more
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Process for liquid phase hydrogenation
TL;DR: In this paper, a process and a catalyst for the liquid phase selective hydrogenation of alkynes to alkenes with high selectivity to alkenes relative to alkanes and high alkyne conversion was proposed.
Patent
Rhenium catalyst composition
TL;DR: In this article, a rhenium-containing catalyst composition is provided by adsorbing a compound on the surface of a pore containing catalyst support and thermally decomposing said compound in the presence of a hydrogen containing gas maintained at a positive pressure.
Patent
Catalysts and processes for selective hydrogenation of acetylene and dienes in light olefin feedstreams
Yongqing Zhang,Stephen J. Golden +1 more
TL;DR: In this article, a method for selective hydrogenation of acetylene and dienes in light olefin feedstreams is presented, and a first component and a second component supported on an inorganic support.
Patent
Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal amorphous sulfide of trivalent chromium and microcrystalline molybdenum or tungsten sulfide
TL;DR: In this paper, a mixture of metal sulfide of at least one metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof is presented.
Patent
Supported chromium-molybdenum and tungsten sulfide catalysts
TL;DR: In this paper, a preselected quantity of support material with a precursor salt containing a tetrathiometallate anion of Mo or W and a cation comprising trivalent chromium and, optionally, one or more promoter metals are chelated by at least one neutral, nitrogen-containing polydentate ligand and heating the composite in the presence of sulfur and hydrogen in an oxygen free atmosphere.
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Patent
Hydrogenation of organic compounds
TL;DR: In this paper, a suitable support material was impregnated with an aqueous solution of a salt of a transition metal and heat-treated at a temperature above 500°F. to form a highly stable heterogeneous catalyst.