The present invention relates to a process for hydroxylation of a compound of formula (I) by reacting the compound of formula (I) with an oxidizing agent, in the presence of a titanium silicalite zeolite prepared by crystallization preceded by a maturing step. The present invention also relates to a titanium silicalite zeolite and to the process for preparing same.

Provided is a new catalyst that can have heightened purification performance for NOx under lean conditions. Proposed is an exhaust gas purification catalyst composition provided with: a carrier (A) comprising zirconium phosphate; a catalyst active component (a) supported on the carrier (A); a carrier (B) comprising an inorganic oxide porous body; and a catalyst active component (b) supported on the carrier (B).

Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.

A fuel reforming catalyst which contains an inorganic porous support, a catalytically active species, and catalyst particles including CeO.sub.2 and ZrO.sub.2 and in which the concentration of ZrO.sub.2 in the catalyst particles is higher in the vicinity of the particle surface than in the particle interior and the concentration of CeO.sub.2 in the catalyst particles is equal in the particle interior and in the vicinity of the particle surface is proposed for the purpose of providing a new fuel reforming catalyst which can effectively lower the concentration of the hydrocarbon of C2 or more in the gas which has passed through a steam reforming reaction.

A novel pt/pd sodalite caged catalyst combination with sulfided base metal catalyst for improved catalytic hydroprocessing of renewable feedstock. Particularly, the invention relates to a process for preparation of the said catalyst. More particularly, the invention relates to a process for the preparation of hydrocarbon fuel from the feed stock using a said catalyst. Further, the invention discloses a novel catalyst and a process for the preparation of the Pt/Pd encapsulated in sodalite cage with silica-alumina ZSM-5 synthesized around it supported with nickel, molybdenum, cobalt, tungsten or one or more thereof. The invention also provides process to convert vegetable oils, free fatty acids, and microbial lipids, bio-crude and conventional non-renewable crude based feed stocks such as diesel, naphtha, kerosene, gas oil, residue, etc., into gasoline, aviation, diesel, fuel and other hydrocarbons fuel with reduced coke formation and hydrogen generation due to formation of napthenes and aromatics using the novel catalyst.

The present invention is directed to a nanostructured binary oxide TiO.sub.2Al.sub.2O.sub.3 with high acidity and its synthesis process via the sol-gel method, hydrotreating and thermal activation. The nanostructured binary oxide TiO.sub.2Al.sub.2O.sub.3 with high acidity consists basically of titanium oxide and aluminum oxide with the special characteristic of being obtained as nanostructures, in their nanocrystal-nanotube evolution, which provides special physicochemical properties such as high specific area, purity and phase stability, acidity stability and different types of active acid sites, in addition to the capacity to disperse and stabilize active metal particles with high activity and selectivity mainly in catalytic processes.

The present invention relates to a perovskite-type strontium titanate, wherein the strontium titanate is Y- and Ni-doped and has the general formula (Sr,Y)(Ti,Ni)O.sub.3. A method of preparing the perovskite-type strontium titanate and its use are also provided.

The invention relates to: a -type iron silicate which has a fluorine content not more than 400 ppm by weight on a dry basis and in which the crystal grains have a truncated square bipyramidal morphology in an examination with a scanning electron microscope and the whole or part of the iron is contained in the -type framework structure, and a process for producing the iron silicate; anther -type iron silicate, and a process for producing the iron silicate; and a nitrogen oxide removal catalyst containing the other -type iron silicate, a process for producing the catalyst, and a method for nitrogen oxide removal with the catalyst.

The present invention relates to the preparation of catalysts used in the hydrodesulfurization of fossil fuels and proposes a method for preparing thermally stable, low-cost catalysts for the hydrodesulfurization of petrol and diesel, based on highly active CoMo and NiMo. The catalyst for the hydroprocessing of gasoil or petrol in the present invention comprises a precursor which consists of chemical compounds obtained from organic acids and metal salts, and a support containing an ultra-stable Y-type zeolite useful in the hydroprocessing of heavy gas oil and/or light cyclic gas oil with high conversion rates.

Paraffin isomerization catalyst comprising of from 0.01 to 5 wt. % of a Group VIII noble metal on a carrier containing alumina and zeolite beta having a silica to alumina molar ratio (SAR) of from 5 to 15 and process employing such catalyst for isomerization of a hydrocarbon feed containing paraffins having of from 4 to 8 carbon atoms.