A catalyst composition comprising (a) carrier comprising (i) 5 to 95 wt % mordenite type zeolite having a mean crystallite length parallel to the direction of the 12-ring channels of 60 nm or less and a mesopore volume of at least 0.10 cc/gram, (ii) 5 to 95 wt % ZSM-5 type zeolite; and (iii) 10 to 60 wt % inorganic binder; and (b) 0.001 to 10 wt % of one or more catalytically active metals, wherein the inorganic binder comprises titania, its preparation and its use in alkylaromatic conversion.

The present invention pertains to the field of catalyst and catalytic reactions. Specifically, the invention provides for new catalytically active compositions of matter, to methods of manufacturing them and to the use of such compositions.

The present invention pertains to the field of catalyst and catalytic reactions. Specifically, the invention provides for new catalytically active compositions of matter, to methods of manufacturing them and to the use of such compositions.

The present invention relates to a method for fluorinating a chlorinated compound including the steps of (a) placing said chlorinated compound in contact with gaseous hydrogen fluoride within a reactor and in the presence of a fluorination catalyst to produce a fluorinated compound, and (b) regenerating the fluorination catalyst used in step a), the step of regenerating the fluorination catalyst including (c) treating said fluorination catalyst with an oxidizing agent to form an oxidized fluorination catalyst, and (d) treating the oxidized fluorination catalyst obtained in step (c) with a gas mixture including a reducing agent.

The present invention relates to a method for fluorinating a chlorinated compound including the steps of (a) placing said chlorinated compound in contact with gaseous hydrogen fluoride within a reactor and in the presence of a fluorination catalyst to produce a fluorinated compound, and (b) regenerating the fluorination catalyst used in step a), the step of regenerating the fluorination catalyst including (c) treating said fluorination catalyst with an oxidizing agent to form an oxidized fluorination catalyst, and (d) treating the oxidized fluorination catalyst obtained in step (c) with a gas mixture including a reducing agent.

The invention relates to a gas phase polymerisation process for the production of ethylene polymers in the presence of a catalyst composition based on a chromium compound, a titanium compound and a silica support material. The silica support material has a surface area (SA) between 685 m.sup.2/g and 800 m.sup.2/g, a pore volume (PV) between 1.65 and 1.85 cm.sup.3/g and an average particle size in the range between 25 and 35 micrometres. The catalyst composition is injected by a dry catalyst feeder into the polymerization reactor.

The invention relates to a gas phase polymerisation process for the production of ethylene polymers in the presence of a catalyst composition based on a chromium compound, a titanium compound and a silica support material. The silica support material has a surface area (SA) between 685 m.sup.2/g and 800 m.sup.2/g, a pore volume (PV) between 1.65 and 1.85 cm.sup.3/g and an average particle size in the range between 25 and 35 micrometres. The catalyst composition is injected by a dry catalyst feeder into the polymerization reactor.

The present invention is related to a new metal powder catalytic system (catalyst), its production and its use in hydrogenation processes.

The present invention is related to a new metal powder catalytic system (catalyst), its production and its use in hydrogenation processes.

Disclosed is a catalyst for producing the olefin. The catalyst includes a support including alumina and a sub-support component, and a metal oxide impregnated on the support. The metal oxide includes anyone selected from an oxide of chromium, vanadium, manganese, iron, cobalt, molybdenum, copper, zinc, cerium and nickel; and the sub-support component includes anyone selected from zirconium, zinc and platinum.