A multidentate phosphite ligand is used in the catalytic synthesis of adiponitrile. The ligand is represented by the following general formula (I). The method of catalytic synthesis of adiponitrile comprises primary hydrocyanation, isomerization, and secondary hydrocyanation reactions, wherein the catalyst adopted each comprises a phosphite ligand-nickel complex composed of a nickel precursor and a multidentate phosphite ligand. The ligand molecule has a higher electron cloud density, and the phosphorus content capable of participating in coordination in the ligand molecule per unit mass is higher, so that the catalytic activity of the catalyst is improved, and the amount of the catalyst is reduced.

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A process for producing isomerized olefins, branched aldehydes, branched alcohols, branched surfactants and other branched derivatives through isomerization, hydroformylation, hydrogenation, surfactant forming reactions and other derivative forming reactions.

Methods are provided for efficient preparation of hydromorphone or hydrocodone by redox isomerization of morphine or codeine allylic alcohols, respectively, using transition metal aminophosphine catalysts formed in situ.

A composition derived from the acid treatment of ashes obtained after heat treatment of selected plants or plant material is provided. The selected plants accumulate metal from the platinum group (platinoids). The compositions can be used to produce catalysts for performing various organic synthesis reactions.

A process for the preparation of a catalyst composition, which process comprises: forming a carrier from a mixture comprising a pentasil zeolite, one or more porous refractory oxide binders selected from alumina, amorphous silica-alumina, aluminum phosphate, magnesia, chromia, titania, boria and silica, and an aqueous solution of a zirconia precursor, and impregnating said carrier with metal dopants comprising one or more Group 10 metals selected from platinum, palladium and mixtures thereof in a total amount in the range of from 0.001 to 1 wt. % and, optionally, in the range of from 0.01 to 0.5 wt. % tin, based on the total weight of the catalyst composition; a catalyst composition prepared by said process; and a process for the use of said catalyst composition in xylene isomerisation are provided.

The invention discloses a continuous process for producing high-pure quadricyclane, in which a reaction-rectification integral process or a reaction followed by rectification process may be employed. The two processes both use a novel composite catalyst which is obtained by loading an organic photo-sensitizer on a solid photocatalyst, and the composite catalyst has a high activity and a good stability. In the reaction-rectification integral process, the composite catalyst is used by being blended with rectification fillers or covering the rectification fillers, so as to achieve the integration of the reaction and the rectification. In the reaction followed by rectification process, the composite catalyst and the rectification fillers are placed separately from each other. The two processes achieve a relatively short residence time of reactants, produce highly-pure quadricyclane, and reduce the formation of cokes.

The present invention relates to a process for the one-pot hydrogenation and dehydration or isomerization of an organic compound, and to a catalyst composition for this process comprising transition metal particles having particle size below 50 nm supported on a material comprising at least one fluorinated polymer (P), wherein polymer (P) bears SO.sub.2X functional groups, X being selected from X and OM, X being selected from the groups consisting of F, Cl, Br and I; and M being selected from the group consisting of H, and alkaline metal and NH.sub.4.

A process to produce 1-octene and 1-decene includes (a) separating a composition containing an oligomer productwhich contains 15 to 80 mol % C.sub.6 olefins, 20 to 80 mol % C.sub.8 olefins, and 5 to 20 mol % C.sub.10+ olefinsinto a first oligomer composition containing C.sub.6 alkanes and at least 85 mol % C.sub.6 olefins (e.g., 1-hexene), a second oligomer composition containing at least 20 mol % C.sub.8 olefins (e.g., 1-octene), and a heavies stream containing C.sub.10+ olefins, then (b) contacting a metathesis catalyst system with the first oligomer composition to form a first composition comprising C.sub.10 linear internal olefins, (c) contacting the C.sub.10 linear internal olefins with a catalytic isomerization catalyst system in the presence of photochemical irradiation to form a second composition comprising 1-decene, and (d) purifying the second composition to isolate a third composition comprising at least 90 mol % 1-decene. Processes to produce 1-hexene and 1-decene also are described, as well as related manufacturing systems and processes to produce higher carbon number normal alpha olefins from lower carbon number normal alpha olefins.

A process for producing isomerized olefins, branched aldehydes, branched alcohols, branched surfactants and other branched derivatives through isomerization, hydroformylation, hydrogenation, surfactant forming reactions and other derivative forming reactions.

The present invention relates to a magnesium oxide (MgO) catalyst for isomerisation of olefins with defined physical properties. The present invention further relates to a catalyst for conversion of olefins having a first catalyst component and a second catalyst component. The first catalyst component has a metathesis catalyst. The second catalyst component has the magnesium oxide catalyst. A process for obtaining an olefin is also disclosed.