The invention relates to a method for producing functionalised bimodal periodic mesoporous organosilicates (PMOs) by means of pseudomorphic transformation, to functionalised bimodal periodic mesoporous organosilicates (PMOs) that comprise at least one organosilicate and at least one functional component, and to the use of the PMO as a filter material, adsorption means, sensor material or carrier material for pharmaceutical products, insecticides or pesticides.

The invention relates to a method for producing functionalised bimodal periodic mesoporous organosilicates (PMOs) by means of pseudomorphic transformation, to functionalised bimodal periodic mesoporous organosilicates (PMOs) that comprise at least one organosilicate and at least one functional component, and to the use of the PMO as a filter material, adsorption means, sensor material or carrier material for pharmaceutical products, insecticides or pesticides.

The invention relates to a method for producing functionalised bimodal periodic mesoporous organosilicates (PMOs) by means of pseudomorphic transformation, to functionalised bimodal periodic mesoporous organosilicates (PMOs) that comprise at least one organosilicate and at least one functional component, and to the use of the PMO as a filter material, adsorption means, sensor material or carrier material for pharmaceutical products, insecticides or pesticides.

This disclosure relates to EMM-41 materials, methods for making it, and processes for its use. This disclosure also relates to the structure directing agents used in the methods for making the EMM-41 material as well as the synthesis method used to prepare such structure directing agents.

A particulate material and a process for the production thereof are provided, which particulate material comprises zeolitic particles having a crystalline structure, which contain as the main component a zeolite material having a zeolitic framework structure formed from Si, O and optionally Al, and/or a zeolite-like material having a zeolitic framework structure which is formed not only from Si, O and optionally Al, wherein the zeolitic particles are in the form of essentially spherical particles with nanometer dimensions.

A particulate material and a process for the production thereof are provided, which particulate material comprises zeolitic particles having a crystalline structure, which contain as the main component a zeolite material having a zeolitic framework structure formed from Si, O and optionally Al, and/or a zeolite-like material having a zeolitic framework structure which is formed not only from Si, O and optionally Al, wherein the zeolitic particles are in the form of essentially spherical particles with nanometer dimensions.

The invention relates to a medium or large pore synthetic zeolite comprising at least 0.02 wt %, based on the weight of the zeolite, of a catalytic metal selected from the group consisting of Ru, Rh, Pd, Ag, Os, Ir, Pt, Au, Mo, W, Re, Co, Ni, Zn, Cr, Mn, Ce, Ga, Cu and combinations thereof, which is present as catalytic metal particles, wherein at least 60% by number of said catalytic metal particles have a particle size of 2.0 nm or less, and at least 0.005 wt %, based on the weight of the zeolite, of an alkali metal or alkaline earth metal selected from the group consisting of Li, Na, K, Cs, Ca, Mg, Ba and Sr and combinations thereof, wherein, if the zeolite comprises in the zeolite framework a trivalent element Y selected from the group consisting of Al, B, Ga Fe and combinations thereof, the SiO.sub.2:Y.sub.2O.sub.3 ratio is greater than 200:1.

Provided are a pentasil-type zeolite that is less likely to adsorb water compared to conventional zeolites and has excellent strength when used as a molded body, and a method for producing the pentasil-type zeolite.

A pentasil-type zeolite having a water adsorption amount of 4.0 g/100 g-zeolite or less under the conditions of 25° C. and a relative humidity of 90% and having a major axis diameter of primary particles of from 0.2 μm to 4.0 μm, and a method for producing the pentasil-type zeolite.

A method for synthesizing mesoporous silica microparticles comprising the steps of: preparing a sol from an ammonium catalyzed hydrolysis and condensation reaction of a pre-sol solution comprising a silica precursor and a structure directing agent dissolved in a mixed solvent system comprising an alcohol and water to produce mesoporous particles of silica with an average diameter of up to about 50 μm; hydrothermally treating the particles to increase the pore size; treating the particles to remove residual structure directing agent; and further increasing the pore size using controlled dissolution.

A method for synthesizing mesoporous silica microparticles comprising the steps of: preparing a sol from an ammonium catalyzed hydrolysis and condensation reaction of a pre-sol solution comprising a silica precursor and a structure directing agent dissolved in a mixed solvent system comprising an alcohol and water to produce mesoporous particles of silica with an average diameter of up to about 50 μm; hydrothermally treating the particles to increase the pore size; treating the particles to remove residual structure directing agent; and further increasing the pore size using controlled dissolution.