Abstract: A method to remove silica from a silica containing material characterized in that it comprises (i) contacting said silica containing material with a first metal ion carbonate, to obtain a first composition, and (ii) heating said first composition in a vessel at a temperature sufficient to increase the pressure above the atmospheric pressure in said vessel or at a pressure of at least 2 bara and at a temperature of at least 80° C., preferably 100° C.

Abstract: A mesoporous zeolitic material possessing an ordered mono-dimensional (1D) or two-dimensional (2D) network of micropores (ie pores<2 nm in diameter) containing mesopores (pores with diameters in the range 2-50 nm) connected to the microporores, the mesopores being characterized by an aspect ratio (length to width) higher than 2, a ratio of the volume of the intracrystalline mesopores to the volume of the micropores in the range 0.1 to 2 and an orientation of the mesopores in the direction of the micropores.

Abstract: The invention relates to a method for the production of a TiO2 material comprising: preliminary mixing a titanium alkoxide with an acid; adding water, a phase separator and of an N source to the mixture thereby obtaining a TiO2 gel; washing the TiO2 gel with isopropanol; drying and calcining the TiO2 gel to produce the material. The invention also relates to a TiO2 material exhibiting an absorbance in the visible spectrum and in particular a light absorption at 500 nm which is greater than 50% of the light absorption at 400 nm, and its use as photocatalyst for the degradation of pollutants in air or water and water splitting into H2, under radiation in the visible spectrum.

Abstract: A method for preparing mesoporous microporous crystalline material involving at least one mesopore-templating agent, said mesopore-templating agent being soluble under the form of unimers and able to generate a micellization with temperature increase so that unimers assemble to form micellar aggregates, and the micellization being reversible with temperature change.

Abstract: The invention relates to a method for the production of a TiO2 material comprising: preliminary mixing a titanium alkoxide with an acid; adding water, a phase separator and of an N source to the mixture thereby obtaining a TiO2 gel; washing the TiO2 gel with isopropanol; drying and calcining the TiO2 gel to produce the material. The invention also relates to a TiO2 material exhibiting an absorbance in the visible spectrum and in particular a light absorption at 500 nm which is greater than 50% of the light absorption at 400 nm, and its use as photocatalyst for the degradation of pollutants in air or water and water splitting into H2, under radiation in the visible spectrum.

Abstract: The invention relates to novel peptide-silane “hybrid block” molecules, to the synthesis thereof and to the use of same for producing novel peptide-silica hybrid materials that can be used in various applications.

Abstract: The invention relates to a Y-type zeolite having a modified faujasite structure, the intracrystalline structure of which includes at least one network of micropores, at least one network of small mesopores having an average diameter ranging from 2 to 5 nm, and at least one network of large mesopores having an average diameter range from 10 to 50 nm. The invention also relates to particles including such zeolites and to the use thereof in a method for processing crude oil, particularly as a hydrocracking catalyst.

Abstract: The invention relates to a Y-type zeolite having a modified faujasite structure, the intracrystalline structure of which includes at least one network of micropores, at least one network of small mesopores having an average diameter ranging from 2 to 5 nm, and at least one network of large mesopores having an average diameter range from 10 to 50 nm. The invention also relates to particles including such zeolites and to the use thereof in a method for processing crude oil, particularly as a hydrocracking catalyst.

Abstract: The invention relates to a Y-type zeolite having a modified faujasite structure, the intracrystalline structure of which includes at least one network of micropores, at least one network of small mesopores having an average diameter ranging from 2 to 5 nm, and at least one network of large mesopores having an average diameter ranging from 10 to 50 nm. The invention also relates to particles including such zeolites and to the use thereof in a method for processing crude oil, particularly as a hydrocracking catalyst.

Abstract: The invention relates to a method for preparing a hydroconversion catalyst based on mesoporous silica or silica-alumina, comprising the following steps: (A) deposition of alumina on a mesoporous material having interconnected pores by treatment with at least one aluminium-based reactant, so as to obtain a compound having a Si/Al ratio of between 0.1 and 1000; (B) addition of at least one catalytically active species chosen from the group formed by the metals of group VIII and/or of group VIB; and (C) drying followed by thermal and/or chemical treatment according to the invention. The invention also relates to the catalyst thus obtained as well as a method of hydroconverting (hydrocracking, hydroisomerizing) a hydrocarbon feedstock, which comprises bringing the feedstock to be treated into contact with the hydroconversion catalyst according to the invention.

Abstract: The present invention relates to a process for reducing residuals content in a vinyl aromatic polymer, said residuals comprising essentially unpolymerized vinyl aromatic monomer, wherein the vinyl aromatic polymer in the molten state is brought in contact with a solid in powder capable to catalyze the alkylation of said residual vinyl aromatic monomer on the vinyl aromatic polymer. Advantage of the present invention is a sharp reduction of the unpolymerized vinyl aromatic monomer in the vinyl aromatic polymer without generating a new residual and without inducing a colored vinyl aromatic polymer. The present invention also relates to said vinyl aromatic polymer having a low residuals content.

Abstract: The present invention relates to metalloaluminophosphate (MeAPO) molecular sieve with lamellar crystal morphology having an empirical chemical composition on an anhydrous basis, after synthesis and calcination, expressed by the formula HxMeyAlzPkO2 wherein, y+z+k=1 x<=y said molecular sieve having predominantly a plate crystal morphology in which the width (W) and the thickness (T) are W/T is >=10 The above metalloaluminophosphate (MeAPO) molecular sieve can be made by a method which comprises: a) forming a reaction mixture containing a texture influencing agent (TIA), an organic templating agent (TEMP), at least a reactive inorganic source of MeO2 insoluble in the TIA, reactive sources of AI203 and P205, b) crystallizing the above reaction mixture thus formed until crystals of the metalloaluminophosphate are formed, c) recovering a solid reaction product, d) washing it with water to remove the TIA and e) calcinating it to remove the organic template.

Abstract: The invention relates to a Y-type zeolite having a modified faujasite structure, the intracrystalline structure of which includes at least one network of micropores, at least one network of small mesopores having an average diameter ranging from 2 to 5 nm, and at least one network of large mesopores having an average diameter ranging from 10 to 50 nm. The invention also relates to particles including such zeolites and to the use thereof in a method for processing crude oil, particularly as a hydrocracking catalyst.

Abstract: The present invention relates to a process for the preparation of lauryllactam in which a Beckmann rearrangement of cyclododecanone oxime is carried out. Said process is carried out in the gas phase at a temperature of between 180 and 450° C. in the presence of a microporous material having a three-dimensional inorganic main structure composed of tetrahedra connected via a common edge, called zeolite.

Abstract: The present invention also relates to a method for preparing metalloaluminophosphate (MeAPO) molecular sieve said method comprising: a) forming a reaction mixture containing a texture influencing agent (TIA), an organic templating agent (TEMP), at least a reactive inorganic source of MeO2 insoluble in the TIA, reactive sources of Al2O3 and P2O5, b) crystallizing the above reaction mixture thus formed until crystals of the metalloaluminophosphate are formed, c) recovering a solid reaction product, d) washing it with water to remove the TIA and e) calcinating it to remove the organic template. In a usual embodiment said reaction mixture has a composition expressed in terms of molar oxide ratios of: TEMP/Al2O3=0.3-5, more desirable 0.5-2 MeO2/Al2O3=0.005-2.0, more desirable 0.022-0.8 P2O5/Al2O3=0.5-2, more desirable 0.8-1.

Abstract: The present invention relates to metalloaluminophosphate (MeAPO) molecular sieve with lamellar crystal morphology having an empirical chemical composition on an anhydrous basis, after synthesis and calcination, expressed by the formula HxMeyAlzPkO2 wherein, y+z+k=1 x<=y said molecular sieve having predominantly a plate crystal morphology in which the width (W) and the thickness (T) are such as: W/T is >=10 and advantageously ranges from 10 to 100. In a preferred embodiment T is <=0.15 ?m, more desirably <=0.10 ?m, more desirably <=0.08 ?m, advantageously ranges from 0.01 to 0.07 ?m and preferably from 0.04 to 0.07 ?m.

Abstract: The present invention relates to a process for reducing residuals content in a vinyl aromatic polymer, said residuals comprising essentially unpolymerized vinyl aromatic monomer, wherein the vinyl aromatic polymer in the molten state is brought in contact with a solid in powder capable to catalyze the alkylation of said residual vinyl aromatic monomer on the vinyl aromatic polymer. Advantage of the present invention is a sharp reduction of the unpolymerized vinyl aromatic monomer in the vinyl aromatic polymer without generating a new residual and without inducing a colored vinyl aromatic polymer. The present invention also relates to said vinyl aromatic polymer having a low residuals content.

Abstract: The present invention discloses a method for separating tethered functional organo-chains, through their dilution with tethered non-functional organo-chains, in the presence of soluble molecular derivatives that are able to self-assemble and to interact with the functional organo-silane.

Abstract: The present invention relates to a process for the preparation of lauryllactam in which a Beckmann rearrangement of cyclododecanone oxime is carried out. Said process is carried out in the gas phase at a temperature of between 180 and 450° C. in the presence of a microporous material having a three-dimensional inorganic main structure composed of tetrahedra connected via a common edge, called zeolite.

Abstract: The invention concerns a method for selectively desulphurizing thiopene compounds contained in hydrocarbons derived from crude oil distillation, whether refined or not, which consists in oxidising the thiophene sulphur atoms into sulphone in the presence of an oxidising agent and in separating said sulphonated compounds from said hydrocarbons. The invention is characterised in that it consists in oxidising the thiophene compounds in a two-phase turbulent medium comprising a hydrocarbon phase and an aqueous phase, in the presence of at least an oxidising agent soluble in at least one of the two phases and of at least a metal catalyst in soluble or dispersed form in a liquid of in solid form, separation and oxidation occurring simultaneously.