Abstract: A method for making a Ziegler-Natta catalyst support includes the steps of contacting a fumed silica with a surface modifying agent such as a compound having the formula RMgX MgR?R? wherein R, R? and R? are each individually a moiety selected from an alkyl group, cycloalkyl, aryl or alkaryl group, and X is a halogen selected from the group consisting of chlorine, bromine and iodine, to provide a pretreated silica seeding agent. The pretreated silica seeding agent is then dispersed in a non-aqueous liquid magnesium halide/alkanol complex, and the magnesium halide is crystallized onto the silica particles to form catalyst support particles especially suitable for Ziegler-Natta catalysts.

Abstract: A series of soluble ?-diimine late transition metal catalysts has been invented comprising a substituted or unsubstituted catecholate ligand. The catalysts demonstrate high activity and selectivity for linear ?-olefins. As such, these catalysts conveniently oligomerize ethylene. Typical activators as known to those of ordinary skill in the art are used to activate these transition metal catalysts. These catalysts can be used in a supported or unsupported form.

Abstract: A method of forming a polyolefin catalyst component includes halogenating metal complexes. The metal complexes result from reacting a metal alkoxide with an alcohol-ether. A particular non-limiting example is a magnesium complex formed by reacting magnesium alkoxide with an ethylene alcohol-ether, and then chlorinating the magnesium complex. Catalyst components, catalysts, catalyst systems, polyolefin polymers and methods of making each are disclosed.

Abstract: Supported catalyst composition for polymerization of olefins comprising: (i) a titanium compound, a magnesium compound and at least one electron donor compound; (ii) a chlorine containing polymer support; and (iii) a cocatalyst comprising at least one aluminum compound, wherein the magnesium loading on the final catalyst is between about 0.20 and 6% by weight.

Abstract: A process for preparing a formulation containing tetrabutylammonium phenolate and phenol is disclosed. The process entails combining a solution of tetrabutylammonium bromide in phenol with a solution of sodium phenolate to form a mixture, excess phenol is removed by distillation, and sodium bromide is filtered off. The formulation, that contains tetrabutylammonium phenolate and phenol in a weight ratio of 40:60 to 70:30, has a solidification point of less than 25° C. and finds use as a catalyst constituent.

Abstract: A supported catalyst for olefin polymerization comprises A) as support material, a copolymer comprising the monomer units I, II and III, where the monomer units I have the formula (I) and the monomer units II have the formula (II), ?where the variables have the following meanings: R1 is hydrogen, C1-C4-alkyl or phenyl, R2 is substituted or unsubstituted aryl or branched or unbranched alkyl or alkenyl, A1 is a direct chemical bond or a substituted or unsubstituted phenylene group, R3 are identical or different and are each hydrogen, C1-C10-alkyl or substituted or unsubstituted phenyl, p is an integer from 0 to 8, and R4 to R7 are hydrogen, C1-C10-alkyl or substituted or unsubstituted phenyl, and the monomer units III have polar groups, and B) at least one metallocene complex and C) at least one compound capable of forming metallocenium ions.

Abstract: Supported catalysts include a solid support such as silica that is functionalized to have inorganic acid functional groups attached thereto. Active catalyst particles are supported on the functionalized support material. The acid functionalized support material is made by reacting a solid support with an inorganic acid containing agent such as sulfuric acid or para-toluene sulfonic acid. An organic anchoring agent is used to form and anchor catalyst nanoparticles to the acid functionalized support material. The supported catalyst can be sized and shaped for use in any type of reactor, including a fixed bed or fluidized bed reactor. The methods of the present invention also include a process for the direct synthesis of hydrogen peroxide using the supported catalyst.

Abstract: The present invention relates to a catalyst for homo-polymerization or co-polymerization of ethylene, or more particularly to a solid complex titanium catalyst for homo-polymerization or co-polymerization of ethylene. The catalyst may be produced by preparing a magnesium solution by contact-reacting a magnesium halide compound with an alcohol. Reacting the solution with an ester compound and a boron compound. Then reacting the solution with a mixture of a titanium compound and a silicon compound.

Abstract: The invention relates to a process to increase the amount of TiCI4 that is retrieved from a waste stream comprising one or more titanium (halo) (alk) oxides while also reducing the quantity and/or hazard of the resulting waste. Valuable solvents/diluents and/or alkyl halides that are introduced into or formed during the process can also be retrieved. The so obtained TiCI4, solvents/diluents and/or alkyl halides are recyclable to, for instance, the process to make Ziegler-Natta catalysts and or co-catalysts.

Abstract: A process for preparing a diether-based catalyst component in which: a) a slurry is obtained by contacting a solid support comprising a magnesium halide or a precursor thereof, one or more 1,3-diethers and a liquid phase containing a titanium compound, and b) the obtained slurry is then subjected to a solid/liquid separation step in order to isolate a diether-based catalyst component; said separation step b) being characterized in that the ratio between the solid/liquid separation velocity and the final amount of separated solid must be higher than 0.5 liter/(min·Kg).

Abstract: Disclosed is method for increasing the efficiency of a dirhodium catalyst. The method includes providing a dirhodium catalyst, providing an organic ester, and contacting the dirhodium catalyst and the organic ester under conditions effective to increase the efficiency of the dirhodium catalyst. The organic ester is selected such that it is not a substrate for catalysis by the dirhodium catalyst. Dirhodium catalyst compositions which include a dirhodium catalyst and an organic ester are also disclosed. In these compositions, the organic ester is not a substrate for catalysis by the dirhodium catalyst. The method and compositions can be used in a number of reactions, including insertion reactions (e.g., C—H insertions, Si—H insertions, O—H insertions, and N—H insertions) cyclopropanation reactions, annulations (e.g., [3+2] annulations and [3+4] annulations), and ?,?-diarylalkanoate syntheses.

Abstract: The present invention provides a catalytic activity accelerant. The accelerant is added to stock oil for increasing the catalyst activity, the depth of catalytic hydrogenation and the yield of catalytic hydrogenation product, degrading the reaction conditions of catalytic hydrogenation, and improving the quality of product. The catalytic activity accelerant is consisted of an alkyl succinimide derivative, an alkyl phenol and a surfactant. The amount of the alkyl succinimide derivative in the accelerant is 5-70 wt. %. The amount of the alkyl phenol in the accelerant is 2-70 wt. %. The amount of the surfactant in the accelerant is 2-70 wt. %.

Abstract: Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of: i. a solid catalyst component containing an internal donor; ii. an Al-alkyl compound, and optionally iii. an external donor; the internal donor and/or the external donor being cyclopolyenic 1,3-diethers. The catalysts are useful for the polymerization of alpha-olefins.

Abstract: An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activated by heating to an activation effective temperature in the presence of a suitable reducing agent such as pyridinium. C3 and C4 hydrocarbons may be partially oxidized selectively to acrylic acid and maleic acid.

Abstract: A metal compound obtained by a process comprising the step of contacting, in a specific ratio, a compound represented by the formula BiL1r, a compound represented by the formula R1s-1TH, and a compound represented by the formula R23-nJ(OH)n; a catalyst component for addition polymerization comprising the metal compound; a catalyst for addition polymerization using the catalyst component; and a process for producing an addition polymer using the catalyst.

Abstract: The present invention relates to a catalyst composition for polymerization of olefins comprising: (a) a solid catalyst pre cursor comprising at least one vanadium compound, at least one magnesium compound and a polymeric material or a solid catalyst precursor comprising at least one vanadium compound, at least one further transition metal compound and/or at least one alcohol, at least one magnesium compound and a polymeric material; and (b) a cocatalyst comprising at least one aluminum compound; and to a method for preparing a catalyst composition according to the present invention, comprising the steps of: (a) combining the components of the solid catalyst precursor; and (b) activating the catalyst precursor with aluminum compound.

Abstract: A catalyst composition for production of a polyurethane resin, which comprises a metal complex catalyst represented by the following formula (1): M(acac)n??(1) wherein M represents Mn, Fe, Co, Ni, Cu, Zn, Zr, Ti, Hf, Al or Th, acac represents acetylacetonate, and n is an integer of from 1 to 4, and at least one compound selected from the group consisting of a bicyclic tertiary amine compound represented by the following formula (2): wherein n is an integer of from 1 to 3, a compound having a cumulative double bond, and a quaternary ammonium salt compound.

Abstract: The invention concerns a novel catalyst for forming urethanes. Said catalyst is characterized by the general formula: MY3?q[Z]q, wherein: Z is the radical corresponding to the anion of a super acid whereof the Hamett constant is at least equal to 13 and advantageously more than 13, M representing a trivalent metal, preferably known for forming Lewis acids; Y is an anion or a monovalent anionic function; and q is an integer selected advantageously between 1 and 3, inclusively. The invention is applicable to paint.

Abstract: Methods of preparing bimetallic catalysts are disclosed. The methods include the steps of providing a supported non-metallocene catalyst, contacting a slurry of the supported non-metallocene catalyst in a non-polar hydrocarbon with a solution of a metallocene compound and an alumoxane, and drying the contact product to obtain a supported bimetallic catalyst. The supported non-metallocene catalyst is prepared by dehydrating a particulate support material at a temperature of greater than 600° C., preparing a slurry of the dehydrated support in a non-polar hydrocarbon, contacting the slurry with an organomagnesium compound and an alcohol, contacting the resulting slurry with a non-metallocene compound of a Group 4 or Group 5 transition metal, and drying the contact product to obtain a supported non-metallocene catalyst as a free-flowing powder. The bimetallic catalysts show increased activity relative to catalysts prepared using support materials dehydrated at lower temperatures.

Abstract: Process for preparing a catalyst composition for ethylene polymerization or copolymerization, with the steps of: (a) treating at least one magnesium alkoxide compound with the effluent waste from a process for production of a polypropylene catalyst of the Ziegler-Natta type, the effluent waste being mainly composed of about 10 to about 20 wt.-% transition metal based compounds, about 20 to about 50 wt.-% solvents, about 0 to about 2 wt.-% electron donors and impurities; (b) washing the product of step (a) with an inert hydrocarbon solvent; and (c) drying the material for use as the catalyst composition.