W.R. Grace & Co.-Conn.

A modified zeolite catalyst composition is disclosed formed from a zeolite, alumina binder, and matrix. The modified zeolite catalyst composition may contain fluorine. Also disclosed, are methods for the preparation of pyridine and/or its alkylpyridine derivatives in high yield utilizing the modified zeolite catalyst composition.

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%.

A process for producing a supported single-site catalyst is provided. The process comprises forming a slurry comprising a dried inorganic oxide support, an organic solvent, and an aluminoxane activator; maintaining the temperature of the slurry from about 100° C. to about 200° C. for a time period from about 0.5 to about 10 hours to form a supported aluminoxane slurry; and contacting N the supported aluminoxane slurry with a single-site catalyst component to form a supported single-site catalyst. The organic solvent comprises one or more non-aromatic organic compounds having a boiling point of about 100° C. or greater in an amount of about 50 CA wt. % or greater with respect to the total amount of the organic solvent.

A process of preparing a solid catalyst component for olefin polymerization incudes forming a homogenous solution by a reaction of a halide-containing magnesium compound with an epoxy compound in a hydrocarbon solvent; adding at least one non-phthalate internal donor to the homogeneous solution to form a first mixture; treating the first mixture with a first titanium compound to form a solid precipitate; and separating the solid precipitate from the first mixture to form the solid catalyst component.

An isolated solid catalyst component for olefin polymerization. The catalyst component comprises a halide-containing magnesium compound, a titanium halide compound, a supportive donor comprising a benzoate, an internal electron donor, and an activity control agent (AC A). The AC A comprises at least one of: i) a first organosilicon compound containing Si—O groups being present in the catalyst component in an amount from about 0.1 to about 5% by weight: ii) an organic ester of a C 4 to C 30 aliphatic acid or a poly (alkene glycol) ester of a C 4 to C 30 aliphatic acid in amount from about 0.1% to about 15% by weight: and iii) an organo-aluminum compound containing an alkyl group. At least a part of the ACA is chemically bonded to the halide-containing magnesium compound.

A modified zeolite catalyst composition is disclosed formed from a zeolite, alumina binder, and matrix. The modified zeolite catalyst composition may contain fluorine. Also disclosed, are methods for the preparation of pyridine and/or its alkylpyridine derivatives in high yield utilizing the modified zeolite catalyst composition.

A process for preparing a catalyst comprises coating substantial internal surfaces of porous inorganic powders with titanium oxide to form titanium oxide-coated inorganic powders. After the coating, an extrudate comprising the titanium oxide-coated inorganic powders is formed and calcined to form a catalyst support. Then, the catalyst support is impregnated with a solution containing one or more salts of metal selected from the group consisting of molybdenum, cobalt, and nickel.

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%.

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%.

An activated solid catalyst component is disclosed formed from a magnesium compound, a titanium compound, an organosilicon compound, a supportive electron donor, and at least one internal electron donor. The solid catalyst component is activated to include titanium and carbon bonds by reaction with an activation agent, such as an aluminum compound. In one embodiment, small amounts of polymer are polymerized with the catalyst component during activation. The activated catalyst component is stable and, when formed, can later be used to produce various polyolefin polymers. The activated catalyst component has controlled reaction kinetics so that the catalyst does not overheat and degrade during initial polymerization.