Abstract: A process for preparing a nanometric zeolite Y of FAU structural type with a crystal size of less than 100 nm and an A/B ratio of greater than 2, by mixing, in aqueous medium, of at least one source AO2 of at least one tetravalent element A chosen from silicon, germanium and titanium, of at least one source BOb of at least one trivalent element B chosen from aluminum, boron, iron, indium and gallium, of at least one source C2/mO of an alkali metal or alkaline-earth metal C chosen from lithium, sodium, potassium, calcium and magnesium, where source C2/mO also includes at least one source of hydroxide ions, to obtain a gel, maturation and hydrothermal treatment of the gel.

Abstract: A process for preparing a nanometric zeolite Y of FAU structural type with a crystal size of less than 100 nm and an A/B ratio of greater than 2, by mixing, in aqueous medium, of at least one source AO2 of at least one tetravalent element A chosen from silicon, germanium and titanium, of at least one source BOb of at least one trivalent element B chosen from aluminum, boron, iron, indium and gallium, of at least one source C2/mO of an alkali metal or alkaline-earth metal C chosen from lithium, sodium, potassium, calcium and magnesium, where source C2/mO also includes at least one source of hydroxide ions, to obtain a gel, maturation and hydrothermal treatment of the gel.

Abstract: A vaccine composition comprising at least one antigen and one adjuvant, characterized in that the adjuvant comprises sterile-filterable nanoparticles comprising pseudo-boehmite and polyacrylate.

Abstract: A novel crystalline hybrid solid with a mixed organic-inorganic matrix is described which has a three-dimensional structure containing an inorganic framework with metallic centers based on zinc connected together via deprotonated organic ligands constituted by the entity —O2C—C6H2—(O)2—CO2. This novel solid is termed IM-21 and has an X-ray diffraction diagram as given below.

Abstract: A vaccine composition comprising at least one antigen and one adjuvant, characterized in that the adjuvant comprises sterile-filterable nanoparticles comprising pseudo-boehmite and polyacrylate.

Abstract: The invention relates to a novel hybrid organic-inorganic material containing an inorganic network of metal centers based on the element gallium, connected to each other by organic bridges, to the preparation and to the use thereof. The invention also relates to an intermediate solid obtained during the synthesis of said hybrid organic-inorganic material.

Abstract: A novel crystalline hybrid solid with a mixed organic-inorganic matrix is described which has a three-dimensional structure containing an inorganic framework with metallic centres based on zinc connected together via deprotonated organic ligands constituted by the entity —O2C—C6H2—(O)2—CO2. This novel solid is termed IM-21 and has an X-ray diffraction diagram as given below.

Abstract: The invention concerns a process for preparing an EU-1 zeolite having a XO2/Y2O3 ratio in the range 10 to 100, comprising the following steps: a) mixing, in an aqueous medium, at least one source of at least one oxide XO2, X being selected from silicon and/or germanium, at least one source of at least one oxide Y2O3, Y being selected from aluminium, iron, gallium and boron, and at least one organic template Q; b) drying the reaction mixture derived from step a) at a temperature of less than 200° C.; c) hydrothermal treatment of the dried reaction mixture derived from step b) in an autoclave, said dried reaction mixture not being in contact with a liquid phase at the bottom of the autoclave.

Abstract: The invention concerns a crystalline solid designated IM-20 which has the X-ray diffraction diagram given below. Said solid has a chemical composition expressed by the empirical formula: mXO2: nGeO2: pZ2O3: qR: sF: wH2O, in which R represents one or more organic species, X represents one or more tetravalent element(s) other than germanium, Z represents at least one trivalent element and F is fluorine.

Abstract: The invention describes a porous composite material that comprises a porous substrate based on a refractory inorganic oxide in which said substrate has a zeolite crystal content that is less than 25% by mass, whereby said crystals are dispersed homogeneously in the pores of said substrate, and the distribution coefficient that is measured by Castaing microprobe is between 0.75 and 1.25, and in which the total pore volume of said substrate represents at least 40% of the initial total pore volume of the substrate, and the mean diameter of the pores represents at least 50% of the mean diameter of the pores of the initial substrate, its process for preparation and its use as catalyst in the hydrocarbon feedstock conversion reactions.

Abstract: The invention concerns a crystalline solid designated IM-18 which has the X-ray diffraction diagram given below. Said solid has a chemical composition expressed by the empirical formula: mXO2:nGeO2:pZ2O3:qR:sF:wH2O, in which R represents one or more organic species, X represents one or more tetravalent element(s) other than germanium, Z represents at least one trivalent element and F is fluorine.

Abstract: The invention concerns a crystalline solid designated IM-17 which has the X-ray diffraction diagram given below. Said solid has a chemical composition expressed by the empirical formula: mXO2: nGeO2: pZ2O3: qR: wH2O, in which R represents one or more organic nitrogen-containing species, X represents one or more tetravalent element(s) other than germanium and Z represents at least one trivalent element.

Abstract: A crystallized solid, referred to by the name IM-14, which has an X-ray diffraction diagram as provided below, is described. Said solid has a chemical composition that is expressed according to the formula GeO2:nY2O3:pR:qF:wH2O, where R represents one or more organic radical(s), Y represents at least one trivalent element, and F is fluorine.

Abstract: The invention relates to a crystallized solid, denoted by the name IM-16, which has an X-ray diffraction pattern as provided hereinafter. Said solid has a chemical composition expressed in accordance with the empirical formula mXO2:nGeO2:pZ2O3:qR:sF:wH2O, where R represents one or more organic species, X represents one or more tetravalent elements different from germanium, Z represents at least one trivalent element and F is fluorine.

Abstract: The invention concerns a crystalline solid designated IM-20 which has the X-ray diffraction diagram given below. Said solid has a chemical composition expressed by the empirical formula: mXO2: nGeO2: pZ2O3: qR: sF: wH2O, in which R represents one or more organic species, X represents one or more tetravalent element(s) other than germanium, Z represents at least one trivalent element and F is fluorine.

Abstract: A crystallized solid, referred to by the name IM-15, which has an X-ray diffraction diagram as provided below, is described. Said solid has a chemical composition that is expressed according to the formula mXO2:nGeO2:pZ2O3:qR:sF:wH2O, where R represents one or more organic radical(s), X represents one or more different tetravalent element(s) of germanium, Z represents at least one trivalent element, and F is fluorine.

Abstract: A preparation process is described for a porous composite material formed from an amorphous core based on at least one silicon oxide on which crystals of EU-1 zeolite are dispersed, said process comprising 1) the impregnation of a solid comprising a silicon oxide and an aluminum oxide with an aqueous solution comprising a hexamethonium cation, 2) the hydrothermal treatment, implemented in an autoclave of volume V (ml) under steam and at a temperature T comprised between 120 and 220° C., of said solid from stage 1), the quantity of water introduced beforehand into said autoclave being strictly greater than a volumetric quantity equal to V*[23.48*10?10*T3?48*10?8*T2+5*10?5*T?0.002] and less than or equal to 0.25*V, and is such that said solid is not in direct contact with it, 3) the drying then calcination of the solid from stage 2). The preparation a catalyst from said material for its use in the isomerization of C8 aromatics is also described.

Abstract: The invention relates to a novel hybrid organic-inorganic material containing an inorganic network of metal centres based on the element gallium, connected to each other by organic bridges, to the preparation and to the use thereof. The invention also relates to an intermediate solid obtained during the synthesis of said hybrid organic-inorganic material.

Abstract: The invention concerns a crystalline solid designated IM-18 which has the X-ray diffraction diagram given below. Said solid has a chemical composition expressed by the empirical formula: mXO2:nGeO2:pZ2O3:qR:sF:wH2O, in which R represents one or more organic species, X represents one or more tetravalent element(s) other than germanium, Z represents at least one trivalent element and F is fluorine.

Abstract: A process for separation of carbon dioxide that is present in a gas mixture by pressure-modulated adsorption (PSA) that comprises at least the following stages is described: a) Bringing said mixture that is to be purified into contact with at least one adsorbent that is formed by a porous carbon material that comprises at least 70% by weight of carbon, whereby said material has a specific surface area that is larger than 1,500 m2/g, a micropore volume of between 0.5 and 2 cm3/g of adsorbent and between 0.5 and 0.8 cm3/cm3 of adsorbent, b) The adsorption of carbon dioxide on said adsorbent at a total pressure P1, c) The desorption of at least a portion of CO2 that is adsorbed in said stage b) so as to produce a CO2-enriched stream at a total pressure P2 that is less than P1.