Abstract: Mixtures of different polyolefins may be made by direct, preferably simultaneous, polymerization of one or more polymerizable olefins using two or more transition metal containing active polymerization catalyst systems, at least one of which contains cobalt or iron complexed with selected ligands. The polyolefin products may have polymers that vary in molecular weight, molecular weight distribution, crystallinity, or other factors, and are useful as molding resins and for films.

Abstract: Disclosed is a method of preparing an ultra-high molecular weight, linear low density polyethylene with a catalyst system that comprises a bridged indenoindolyl transition metal complex, a non-bridged indenoindolyl transition metal complex, an alumoxane activator and a boron-containing activator. The ultra-high molecular weight, linear low density polyethylene has a weight average molecular weight greater than 1,000,000 and a density less than 0.940 g/cm3.

Abstract: A polyethylene may be prepared using a mixture of a silica supported catalyst and a magnesium chloride supported catalyst. By changing the ratio of the two catalysts, the polyethylene produced may have a varying bulk density and shear response. The method allows for the tuning or targeting of properties to fit a specific application, such as a blow molding or vapor barrier film.

Abstract: A process for producing a high surface area iron material, comprising predominantly low crystalline iron oxides, starting with a low surface area iron metal is disclosed. The iron material of the present invention has a surface area of at least about 200 m2/g, and is prepared via a method which comprises reacting a low surface area iron metal with oxygen and an organic acid. The high surface area iron material formed via this method is essentially free of contaminants.

Abstract: The invention relates to a process for the preparation of a catalyst comprising: a) The preparation of a colloidal oxide suspension of a first metal M1 that consists in the neutralization of a basic solution by an acidic mineral solution that contains the precursor of the metal M1, b) Bringing into contact the precursor of the promoter M2, either directly in its crystallized form or after dissolution in aqueous phase, with the colloidal suspension that is obtained in stage a), c) Bringing into contact the colloidal suspension that is obtained in stage b) with the substrate, d) Drying at a temperature of between 30° C. and 200° C., under a flow of air. The invention also relates to a process for the treatment of an olefinic fraction that uses the catalyst prepared [by] said preparation process.

Abstract: The present invention discloses active oligomerization or polymerization catalyst systems based on imino-quinolinol complexes.

Abstract: The present invention relates to a process for the polymerization of olefins, comprising the steps of introducing at least one olefin, at least one polymerization catalyst, at least one cocatalyst and at least one cocatalyst aid, and optionally a scavenger, into a polymerization reactor, and polymerizing the olefin, wherein the cocatalyst aid is a reaction product prepared separately prior to the introduction into the reactor by reacting at least one metal alkyl compound of group IIA or IIIA of the periodic system of elements and at least one compound (A) of the formula RmXR?n, wherein R is a branched, straight, or cyclic, substituted or unsubstituted, hydrocarbon group having 1 to 30 carbon atoms, R? is hydrogen or any functional group with at least one active hydrogen, X is at least one heteroatom selected from the group of O, N, P or S or a combination thereof, and wherein n and m are each at least 1 and are such that the formula has no net charge.

Abstract: The present invention provides polymerization catalyst compositions employing novel heterodinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins are also provided.

Abstract: The present invention relates to catalysts systems for the polymerization of olefins CH2?CHR, wherein R is an alkyl, cycloalkyl or aryl radical having 1-12 carbon atoms, comprising (A) a solid catalyst component comprising Ti, Mg, and halogen (B) an aluminum alkyl compound and (C) a brominated cyclic hydrocarbon. Said catalyst systems have improved polymerization activity.

Abstract: The present invention provides a method for supporting a nonmetallocene olefin polymerization catalyst, comprising the following steps: a carrier reacts with a chemical activator to obtain a modified carrier; a magnesium compound is dissolved in a tetrahydrofuran-alcohol mixed solvent to form a solution, then the modified carrier is added to the solution to perform a reaction, then filtered and washed, dried and suction dried to prepare a composite carrier; a nonmetallocene olefin polymerization catalyst is dissolved in a solvent, and then reacts with said composite carrier, then is washed and filtered, dried and suction dried, to prepare a supported nonmetallocene olefin polymerization catalyst. The present invention further relates to a supported nonmetallocene olefin polymerization catalyst as prepared by this method.

Abstract: The present invention relates to a catalyst for polymerization of ethylene, a process for preparing the same, and a method for controlling kinetic behavior of said catalyst in ethylene polymerization. Said catalyst contains a titanium-containing main catalyst component and a co-catalyst. The titanium-containing main catalyst component is prepared by reacting the following components: (1) a hydrocarbon solution of dialkylmagnesium compound of formula RMgR?.yEt3Al; (2) an alcohol compound of formula R1OH; (3) a silica support thermally activated at 200-800° C.; (4) an alkylaluminum compound of formula R2nAlCl3-n; (5) a linear halogenated alkane of formula R3X; and (6) a titanium compound of formula Ti(OR4)mCl4-m. The co-catalyst is an organoaluminum compound. Three different types of ethylene polymerization kinetic curves can be obtained by adjusting the temperature for thermally activating the silica support and the ratio of titanium to magnesium in the titanium-containing main catalyst component.

Abstract: The present invention relates to catalysts systems for the polymerization of olefins CH2?CHR, wherein R is an alkyl, cycloalkyl or aryl radical having 1-12 carbon atoms, comprising (A) a solid catalyst component comprising Ti, Mg, and halogen (B) an aluminum alkyl compound and (C) a halogenated germanium compound. Said catalyst systems have improved polymerization activity.

Abstract: The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the polymerization processes, olefin polymers produced from these polymerization processes may have a higher molecular weight, a lower melt index, and higher levels of unsaturation.

Abstract: The present invention provides polymerization catalyst compositions employing novel heterodinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins are also provided.

Abstract: Polymerization catalyst systems including three or more catalyst compounds are provided. Methods for olefin polymerization including the aforementioned catalyst systems are also provided.

Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.

Abstract: Olefin polymerization catalyst systems including a high molecular weight catalyst compound and a low molecular weight catalyst compound, and methods of making same are provided. High molecular weight catalysts include metallocene catalysts and low molecular weight catalysts include non-metallocene compounds including biphenyl phenol compounds. Generally catalyst systems may include less than about 5.0 mol % of the high molecular weight catalyst compound relative to said low molecular weight catalyst. Methods for olefin polymerization including the aforementioned catalyst systems, and polyolefins and products made therefrom.

Abstract: An electrode catalyst layer, capable of having high catalytic activity in a small thickness, for use in a polymer electrolyte fuel cell having an entangled (cobweb-like) structure. The electrode catalyst layer is produced through a process including a step of forming a thin film with a film-forming material containing a combination of platinum, oxygen, and nitrogen, a combination of platinum, oxygen, and boron, or a combination of platinum, oxygen, nitrogen, and boron, and a step of forming a catalyst material, which has the entangled structure and principally contains platinum as a main component by reducing the film-forming material.

Abstract: The present invention relates to catalysts systems for the polymerization of ethylene and its mixtures with olefins CH2?CHR, wherein R is an alkyl, cycloalkyl or aryl radical having 1-12 carbon atoms, comprising (A) a solid catalyst component comprising Ti, Mg, halogen, (B) an aluminum alkyl compound and (C) an ether of formula ROMe in which R is an alkyl group linked to the oxygen atom through a tertiary carbon atom, and in which the molar ratio between the aluminum alkyl compound (B) and the ether compound (C) ranges from 5 to 50.

Abstract: A process for producing a 1-butene polymer comprising the step of polymerizing 1-butene in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (Ia) in the meso or meso-like form: wherein M is an atom of a transition metal p is an integer from 0 to 3, X, same or different, is a hydrogen atom, a halogen atom, or a hydrocarbon group.

Abstract: Polyethylene which comprises ethylene homopolymers and copolymers of ethylene with ?-olefins and has a molar mass distribution width Mw/Mn of from 6 to 100, a density of from 0.89 to 0.97 g/cm3, a weight average molar mass Mw of from 5000 g/mol to 700,000 g/mol and has from 0.01 to 20 branches/1000 carbon atoms and at least 0.5 vinyl groups/1000 carbon atoms, wherein the 5-50% by weight of the polyethylene having the lowest molar masses have a degree of branching of less than 10 branches/1000 carbon atoms and the 5-50% by weight of the polyethylene having the highest molar masses have a degree of branching of more than 2 branches/1000 carbon atoms, a process for its preparation, catalysts suitable for its preparation and also fibers, moldings, films or polymer blends in which this polyethylene is present.

Abstract: The present invention provides a process for preparing a supported catalyst (catalyst C) having a support (support S) selected from among oxides, phosphates, silicates, carbides, borides and nitrides of main group elements and elements of transition groups VI and II and mixtures of the abovementioned compounds and an active component (activator A) comprising one or more compounds containing one or more elements of transition groups V, VI and VII customary for the catalysis of metathesis reactions.

Abstract: A production process of an ?-olefin polymerization catalyst, comprising the steps of (1) reducing a titanium compound represented by a defined formula with an organomagnesium compound in the presence of an Si—O bond-containing silicon compound, (2) contacting the resultant solid catalyst component precursor, a halogenating compound and an internal electron donor with one another, and (3) contacting the resultant solid catalyst component, an organoaluminum compound and a Si-containing external electron donor represented by a defined formula with one another; and a production process of an olefin polymer using the above catalyst.

Abstract: A process is provided for recovering polymer solids from a polymerisation reactor effluent. The process comprises extracting the polymerisation effluent from a polymerisation reactor; passing the effluent, or a part thereof, to a flash vessel for flashing liquid in the effluent to vapour, and removing said vapour from said flash vessel; passing the polymer solids from the flash vessel to a transfer apparatus which comprises a transfer vessel; passing the polymer solids from the transfer vessel to a purging means for removing residual liquid from the polymer solids; wherein the polymer solids are passed from the flash vessel to the purging means in a continuous flow such that a quantity of polymer solids is maintained in the transfer vessel. An apparatus for performing the process is also provided.

Abstract: A supported catalyst with a solid sphere structure of the present invention includes an oxide supporting body and a metal such as Ni, Co, Fe, or a combination thereof distributed on the surface and inside of the supporting body. The supported catalyst with a solid sphere structure can maintain a spherical shape during heat treatment and can be used with a floating bed reactor due to the solid sphere structure thereof.

Abstract: The present invention is related to a hydrocarbon oxidation process. The process comprises bringing one or more hydrocarbons into contact with a source of oxygen in the presence of a radical initiator and a catalyst. The catalyst comprises an organic metal complex located on a catalyst support, and is obtained by partial decomposition of the organic metal complex. For example, the process can be used to produce dimethyl carbonate from dimethoxy methane. The invention is also related to a partially decomposed catalyst that comprises a silica support and an organic metal complex, wherein at least 5% of the organic compound remains in the catalyst. The organic metal complex comprises an organic compound and a metal-based compound wherein the metal is selected from copper, nickel, and combinations thereof.

Abstract: Catalyst for the polymerization and/or copolymerization of olefins which is obtainable by application to a finely divided inorganic support and concluding calcination at temperatures of from 350 to 1050° C. and has a chromium content of from 0.1 to 5% by weight and a zirconium content of from 0.5 to 10% by weight, in each case based on the element in the finished catalyst, with the molar ratio of zirconium to chromium being from 0.6 to 5.

Abstract: Process for preparing a supported catalyst for the polymerization and/or copolymerization of olefins which has a chromium content of from 0.01 to 5% by weight, based on the element, which comprises (a) preparing a homogeneous solution comprising an organic or inorganic chromium compound and at least one further organic or inorganic compound of elements selected from among Mg, Ca, Sr, B, Al, Si, P, Bi, Sc, V, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W in a protic or aprotic polar solvent, (b) bringing the solution from a) into contact with a finely divided inorganic support to form a catalyst precursor, (c) if appropriate, removing the solvent from the catalyst precursor and (d) calcining the catalyst precursor at temperatures of from 350 to 950° C., preferably 400 to 900° C., under oxidative conditions.

Abstract: The invention relates to a bimodal or multimodal polyethylene which comprises ethylene homopolymers and/or copolymers of ethylene with ?-olefins, has a polydispersity index Mw/Mn of the low molecular weight component of less than 10 and can be prepared using a polymerization catalyst based on a Ziegler component and a late transition metal component having a tridentate ligand which bears at least two ortho,ortho-disubstituted aryl radicals and also a catalyst system and a process for preparing the polyethylene and also fibers, moldings, films and polymer blends comprising this material.

Abstract: The present invention relates to the removal of hydrocarbon residues from a catalyst and more specifically the air activation of a catalyst containing hydrocarbon residues. It also relates to extruded pipe and utility conduit resins comprising polyethylene, household/industrial chemicals container resins, and to a polyethylene resin particularly suitable for large parts by blow molding and sheet extrusion procedures, wherein the resin is made by a process using an activated chromium and titanium-based catalyst.

Abstract: This invention relates to an improved method for improving the tacticity of Ziegler-Natta catalyst systems and for controlling the behaviour of the active stereospecific sites.

Abstract: Process for producing a catalyst system, which comprises the following steps: A) provision of a mixture of at least two different organic transition metal compounds, at least one hydrolyzed organoaluminum compound and a solvent and impregnation of a dry porous support component with the mixture from step A), with the total volume of the mixture being from 0.6 to 1.5 times the total pore volume of the support component, and also catalyst systems obtainable in this way and their use for olefin polymerization.

Abstract: A magnesium titanium olefin polymerization procatalyst is prepared by A) reacting a diorganomagnesium compound with a source of active chlorine, (with the proviso that the amount of chlorine is insufficient to completely convert the diorganomagnesium to magnesium dichloride); then B) removing unreacted diorganomagnesium from the reaction product; then depositing a tetravalent titanium species on the reaction product. This procatalyst is highly active for the solution polymerization of olefins when combined with a cocatalyst.

Abstract: The invention relates to methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified.

Abstract: The present invention discloses a metallocene catalyst system for producing polyolefins comprising: A. a hafnocene-based catalyst component suitable for producing the high molecular weight fraction of the polyolefin; B. one or more metallocene or post-metallocene components different from the component A and suitable for producing the low molecular weight fraction of the polyolefin; C. an activating agent having a low or no coordinating capability.

Abstract: A catalyst composition for polymerizing olefins to polymers having bimodal molecular weight distribution comprises two transition metal-containing metallocene compounds, a magnesium compound, an alcohol, an aluminum containing co-catalyst and a polymeric support. The transition metal in one of the metallocene compounds is zirconium and the transition metal in the second metallocene compound is selected from the group consisting of titanium, vanadium and hafnium. Polyolefin polymers made using the catalyst composition have broad molecular weight distributions and are useful in film and blow molding applications.

Abstract: A process for synthesizing a catalyst component for manufacturing ethylene polymer and co-polymer. The present invention provides a process for synthesizing catalyst component (A), comprising forming a complex by contacting the solid intermediate (B) with an aluminum compound represented by formula X3-nAl(OY)n, and alkyl metal (C), wherein X is halide, Y is a hydrocarbon group or chelating carbonyl group, and wherein 1 is less than or equal to n which is less than or equal to 3, and then contacting the complex with titanium halide having formula TiX4 wherein X is halide. Solid intermediate (B) is formed by reacting magnesium metal with alkyl halide in the presence of alkoxy aluminum represented by formula Al(ORa)3, silicon halide represented by formula SiX4 and alkoxy silane represented by formula Si(ORb)4, wherein Ra and Rb are an aromatic or aliphatic alkyl group and wherein X is halide.

Abstract: The invention relates to a process for upgrading hydrocarbonaceous feedstreams by hydroprocessing using bulk bimetallic catalysts. More particularly, the invention relates to a catalytic hydrotreating process for the removal of sulfur and nitrogen from a hydrocarbon feed such as a fuel or a lubricating oil feed. The catalyst is a bulk catalyst comprising a Group VIII metal and a Group VIB metal.

Abstract: Substituted ferrocenium compounds comprising at least one pendant oleophilic substituent on at least one of the cyclopentadienyl groups and an inert, compatible, noncoordinating, anion and processes for use thereof as catalyst activators for addition polymerizations or as oxidizing agents for metal complex syntheses.

Abstract: A multi-phase catalyst for the simultaneous conversion of oxides of nitrogen, carbon monoxide, and hydrocarbons is provided. A catalyst composition comprising the multi-phase catalyst and methods of making the catalyst composition are also provided. The multi-phase catalyst may be represented by the general formula of CeyLn1-xAx+sMOZ, wherein Ln is a mixture of elements originally in the form of single-phase mixed lanthanides collected from natural ores, a single lanthanide, or a mixture of lanthanides; A is an element selected from a group consisting of Mg, Ca, Sr, Ba, Li, Na, K, Cs, Rb, or any combination thereof; and M is an element selected from the group consisting of Fe, Mn, Cr, Ni, Co, Cu, V, Zr, Pt, Pd, Rh, Ru, Ag, Au, Al, Ga, Mo, W, Ti, or any combination thereof; x is a number defined by 0?x<1.0; y is a number defined by 0?y<10; s is a number defined by 0?s<10; where s=0 only when y>0 and y=0 only when s>0.

Abstract: A process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of a catalyst system which comprises a bridged indenoindolyl transition metal complex on a support material, an alkylalumoxane, a titanium tetralkoxide, and a branched alkyl aluminum compound. The process provides polyethylenes with low density from ethylene alone.

Abstract: The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or separately to the reactor. Adding the alkyl aluminum compound directly to the reactor (in-situ) eliminates induction times.

Abstract: Embodiments of the invention provide catalysts for hydrocarbon oxidation. One embodiment of the invention provides a catalyst for hydrocarbon oxidation comprising: a liquid medium including aromatic hydrocarbon 150; bis(2,4-pentanedionato)platinum; bis(2,4-pentanedionato)palladium; ferrocene; magnesium 2-ethylhexanoate; and cerium (III) 2-ethylhexanoate, rhenium in an organo-metallic compound, or both.

Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.

Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.

Abstract: The present invention discloses a chelate ligand wherein the backbone contains a metal.

Abstract: A method for producing a high surface area iron material starting with a low surface area iron metal is disclosed. The iron material of the present invention has a surface area of at least about 200 m2/g, and is prepared via a method which comprises reacting a low surface area iron metal with oxygen and an organic acid. The high surface area iron material formed via this method is essentially free of contaminants.

Abstract: A method for preparing a spray dried catalyst and a low viscosity, low foam spray dried catalyst system for olefin polymerization are provided. In one aspect, the method includes preparing a catalyst system including one or more components selected from metallocenes, non-metallocenes, and activators, adding mineral oil to the catalyst system to form a slurry, and adding one or more liquid alkanes having three or more carbon atoms to the slurry in an amount sufficient to reduce foaming and viscosity of the slurry. In one aspect, the catalyst system includes one or more catalysts selected from metallocenes, non-metallocenes, and a combination thereof, wherein the catalyst system is spray dried. The system further includes mineral oil to form a slurry including a catalyst system, and one or more liquid alkanes having three or more carbon atoms in an amount sufficient to reduce foaming and viscosity of the slurry.

Abstract: A composition for forming a transparent film, comprising photocatalytic particles; zirconium ammonium carbonate; a cohydrolysis-polycondensation product of an aluminum alkoxide represented by the formula Al(OR)3 where R is an organic group and a titanium alkoxide represented by the formula Ti(OR?)4 where R? is an organic group; and water, and having a pH of 7 to 9.

Abstract: The present invention relates to a catalyst system comprising at least two different transition metal coordination compounds supported on an adduct containing magnesium halide and an organoaluminum compound and it relates to a polymerisation process in the presence of said catalyst system.