Abstract: A polymerization process includes contacting an olefin or a mixture of the olefin and one or more copolymerizable comonomers under polymerization conditions with a catalyst composition and forming a polymer with a total ash content of less than 15 ppm. The catalyst composition includes one or more polymerization catalysts; and a mixed external electron donor comprising a selectivity control agent comprising at least one silicon-containing compound containing at least one C1-C10 alkoxy group bonded to a silicon atom.

Abstract: The present invention relates to a process for making 1,4 butanediol. The process may include reacting a solution comprising 1,4-butynediol with hydrogen in a presence of a catalyst. The catalyst may include cerium.

Abstract: A process comprising polymerizing olefin monomers and optionally comonomers in a first reactor vessel, thereby forming a raw product stream comprising polymerized solids, unreacted monomer and optionally comonomer, the polymerized solids comprising olefin polymer, volatile organic compounds (VOC) and catalyst system. Then the polymerized solids are contacted with a catalyst poison selected from carbon monoxide, carbon dioxide, oxygen, water, alcohols, amines, or mixtures thereof, thereby forming a passivated stream. The passivated stream is maintained in an agitated state within a second reactor. The passivated stream within the second reactor is then contacted with a circulating gas comprising unreacted monomer for a residence time, thereby reducing the concentration of VOC in the polymerized solids by at least 10 wt % compared to the level before entering the second reactor, thereby forming a purified olefin polymer solids stream.

Abstract: Functionalized particulate support material and chromatographic media prepared therefrom are disclosed. The functionalized particulate support material is a plurality of particles, each particle having a particle surface. Chemically bonded to and extending from the surface of the particles is a combination of hydrophobic and hydrophilic functional groups. The hydrophobic functional groups enable polymerization of one or more monomers onto the particle surface while the hydrophilic functional groups provide increased wettability of the particle surface compared to an unmodified particle surface. The functionalized particulate support material may be further processed so as to form polymer chains extending from the hydrophobic functional groups. In one embodiment, the resulting polymer functionalized material is useful as a chromatographic media in chromatography columns or cartridges, such as in a liquid chromatography (HPLC) column.

Abstract: A Ziegler-Natta catalyst composition is disclosed. The catalyst composition includes an internal electron donor with improved polymerization kinetics, a long lifetime, improved stereoselectivity and/or improved hydrogen response.

Abstract: This invention relates to a coating composition. The coating composition may include hydrophobized aluminum silicate particles, a film-forming binder, and a solvent. the hydrophobized aluminum silicate particles comprise aluminum silicate particles having a pore diameter of about 50 ? or more and a hydrophobic coating on a surface of the aluminum silicate particles.

Abstract: The present invention relates to a process for making 1,4-butanediol. The process may include reacting a solution comprising 1,4-butynediol with hydrogen in a presence of a catalyst. The catalyst may include cerium.

Abstract: The present invention discloses an inventive method for manufacturing a catalyst using alloy granules having a high-Ni content. The inventive method may include providing alloy granules comprising aluminum and nickel, and treating the alloy granules with an alkaline solution to form the catalyst. A content of the nickel in the alloy granules may be within a range of about 43 wt % to about 60 wt %. The alloy granules may have effective diameters within a range of about 1 mm to about 10 mm. The catalyst may have an attrition value of less than about 7.0%.

Abstract: This invention relates to a coating composition. The coating composition may include hydrophobized silica particles, a film-forming binder, and a solvent. The hydrophobized silica particles comprise porous silica particles having a pore diameter of about 80 or more which have been treated to form a hydrophobic coating on a surface of the porous silica particles.

Abstract: Improved coating formulations containing silica based matting agents in the form of a blend of low pore volume silica particles and high pore volume silica particles are disclosed. The matting formulations are useful in waterborne coating compositions to provide exceptional properties to a coated substrate. Films resulting from the coating formulations containing silica-based matting agents on a substrate unexpectedly provide improved chemical resistance to the surface of the substrate, in particular wood or plastics. Methods of making and using the silica-based matting formulations are also disclosed.

Abstract: Methods of making functionalized support material am disclosed. Functionalized support material suitable for use in chromatography columns or cartridges, such as in a high pressure liquid chromatography (HPLC) column or a fast protein liquid chromatography (FPLC) column, is also disclosed. Chromatography columns or cartridges containing the functionalized support material, and methods of using functionalized support material, such as a media (e.g., chromatographic material) in a chromatography column or cartridge, are also disclosed.

Abstract: The present disclosure relates to methods for controlling gas phase polymerization reactors. A method for controlling a fluidized bed reactor can include forming a fluidized bed in a reactor followed by discharge of polymer product from the reactor to a product discharge tank. The polymer product can then be discharged from the product discharge tank to a blow tank and the pressure of the blow tank is measured. The pressure measured in the blow tank can then be used to control the reactor by changing one or more reactor operating inputs based on the measured blow tank pressure.

Abstract: A process of preparing a solid catalyst component for the production of polypropylene includes a) dissolving a halide-containing magnesium compound in a mixture, the mixture including an epoxy compound, an organic phosphorus compound, and a hydrocarbon solvent to form a homogenous solution; b) treating the homogenous solution with an organosilicon compound during or after the dissolving step; c) treating the homogenous solution with a first titanium compound in the presence of a first non-phthalate electron donor, and an organosilicon compound, to form a solid precipitate; and d) treating the solid precipitate with a second titanium compound in the presence of a second non-phthalate electron donor to form the solid catalyst component, where the process is free of carboxylic acids and anhydrides.

Abstract: The present invention discloses an inventive method for manufacturing a catalyst using alloy granules having a high-Ni content. The inventive method may include providing alloy granules comprising aluminum and nickel, and treating the alloy granules with an alkaline solution to form the catalyst. A content of the nickel in the alloy granules may be within a range of about 43 wt % to about 60 wt %. The alloy granules may have effective diameters within a range of about 1 mm to about 10 mm. The catalyst may have an attrition value of less than about 7.0%.

Abstract: Methods of using silica-zirconia catalysts in processes to reduce an amount of glycidol, glycidyl ester(s), or both glycidol and glycidyl ester(s) from a triglyceride-containing composition, such as edible oils, are disclosed. Silica-zirconia catalysts and methods of making silica-zirconia catalysts are also disclosed.

Abstract: An improved process and catalyst composition for cracking hydrocarbons in a fluidized cracking process are disclosed. The process employs circulating inventory of a regenerated cracking having a minimal carbon content. The regenerated catalyst comprises a catalyst/additive composition which contains a pentasil zeolite, iron oxide, and a phosphorous compound. In accordance with the present disclosure, the catalyst/additive contains controlled amounts of iron oxide which is maintained in an oxidized state by maintaining low amounts of carbon on the regenerated catalyst inventory. In this manner it was discovered that the catalyst composition greatly enhances the production and selectivity of light hydrocarbons, such as propylene.

Abstract: The present disclosure is generally directed to polyolefin polymers, such as polypropylene homopolymers, and propylene-ethylene copolymers that have improved flow properties. In one embodiment, the polymers can be produced using a solid catalyst component that includes a) dissolving a halide-containing magnesium compound in a mixture, the mixture including an epoxy compound, an organic phosphorus compound, and a hydrocarbon solvent to form a homogenous solution; b) treating the homogenous solution with an organosilicon compound during or after the dissolving step; c) treating the homogenous solution with a first titanium compound in the presence of a first non-phthalate electron donor, and an organosilicon compound, to form a solid precipitate; and d) treating the solid precipitate with a second titanium compound in the presence of a second non-phthalate electron donor to form the solid catalyst component, where the process is free of carboxylic acids and anhydrides.

Abstract: A process comprising polymerizing propylene and an olefin comonomer selected from C2 or C4-C8 with a Ziegler Natta catalyst system and hydrogen in a single gas-phase reactor, to form a propylene polymer, at a temperature range of from 78 to 92° C. with a H2/C3 molar ratio of 0.005 to 0.25, the catalyst system comprising: a solid catalyst component comprising a transition metal compound, a Group 2 metal compound, an internal electron donor comprising a substituted phenylene aromatic di ester; an activity limiting agent; an organo-aluminum compound; and an external electron donor composition comprising at least one silane, wherein if the olefin comonomer is ethylene it is present in the propylene polymer in an amount from 1.0-7.0 wt % based on the total weight of the propylene polymer, and if the olefin comonomer is C4-C8, it is present in an amount from 1.0-15.0 mol % based on the total amount of the propylene polymer.

Abstract: Methods of making functionalized support material are disclosed. Functionalized support material suitable for use in chromatography columns or cartridges, such as in a high pressure liquid chromatography (HPLC) column or a fast protein liquid chromatography (FPLC) column, is also disclosed. Chromatography columns or cartridges containing the functionalized support material, and methods of using functionalized support material, such as a media (e.g., chromatographic material) in a chromatography column or cartridge, are also disclosed.

Abstract: A Ziegler-Natta catalyst composition is disclosed. The catalyst composition is formed from a procatalyst containing a magnesium moiety and a titanium moiety. At least one internal electron donor is incorporated into the procatalyst. During a titanation procedure in conjunction with the internal electron donor, a titanium extractant is used to remove or deactivate low activity or atactic titanium active sites.