Abstract:
Trialkyl arsine(s) are removed from a fluid (e.g., a hydrocarbon-containing gas) by contacting the fluid with a sorbent material comprising (a) copper sulfide, preferably copper(I) sulfide, and (b) an inorganic support material, preferably zinc oxide and/or alumine.
Abstract:
A supported hydrogenation catalyst composition consists essentially of a palladium component, at least one alkali metal iodide (preferably KI) and an inorganic support material (preferably Al 2 O 3 ). This catalyst composition is employed in the selective hydrogenation of C 3 -C 12 diolefins with hydrogen gas to the corresponding monoolefins.
Abstract translation:负载型氢化催化剂组合物主要由钯组分,至少一种碱金属碘化物(优选KI)和无机载体材料(优选Al 2 O 3)组成。 该催化剂组合物用于将C3-C12二烯烃与氢气选择性氢化成相应的单烯烃。
Abstract:
A catalyst composition comprising palladium, silver and a support material (preferably alumina) is contacted at a relatively low temperature (of up to about 60°C) with a liquid composition comprising an effective reducing agent (preferably an alkali metal borohydride, hydrazine, formaldehyde, formic acid, ascorbic acid, dextrose, aluminum powder). Preferably, at least one alkali metal compound (more preferably KOH, RbOH, CsOH, KF) is also present in the liquid composition. An improved process for selectively hydrogenating acetylene (to ethylene) employs this wet-reduced catalyst composition.
Abstract:
A supported catalyst composition, which is effective as a diolefin hydrogenation catalyst, comprises palladium, silver and alkali metal fluoride. This catalyst composition is employed in the selective hydrogenation of C₄-C ₁₀ diolefins (preferably 1,3-butadiene) with hydrogen gas to the corresponding monoolefins.
Abstract:
A process for selectively hydrogenating C₄-C₁₀ diolefins to the corresponding monoolefins is carried out with a catalyst comprising (a) nickel metal and/or compound(s), (b) silver metal and/or compound(s), and (c) a solid inorganic support material (preferably alumina).
Abstract:
Trialkyl arsine (in particular trimethyl arsine) is removed from a fluid (e.g., a hydrocarbon-containing gas) by contacting the fluid with a sorbent material comprising (a) elemental sulfur, and (b) an inorganic support material, preferably alumina and/or silica and/or titania and/or activated carbon.
Abstract:
A composition and a process for using the composition in a selective hydrogenation of a highly unsaturated hydrocarbon such as, for example, an alkyne or diolefin, to a less unsaturated hydrocarbon such as, for example, an alkene or a monoolefin, are disclosed. The composition comprising palladium, silver, and a spinel wherein the palladium and silver are each present in a sufficient amount to effect the selective hydrogenation of an unsaturated hydrocarbon. Optionally, the palladium is present as skin distributed on the surface of the spinel. The composition can further comprise an alkali metal-containing compound such as, for example, potassium fluoride.