Abstract: The present invention concerns a process for preparing a composite of porous material/compound/hybrid organic-inorganic material having a 2:1 lamellar structure, said hybrid material having the following general formula I: Nax[(Mg3)(Alx(RSi)4?x)O8+x(OH)2]??(I) wherein x is a number such that 0?x<1.2 and R represents a C1-C30 alkyl group, an aryl group, a (C1-C30 alkyl)aryl group or an O—(C1-C30 alkyl) group, it being possible for the alkyl group to be substituted with a group chosen from a phenyl, vinyl, aminopropyl or mercaptopropyl group, and said compound being chosen from the group constituted of at least one active substance and at least one microorganism and mixtures thereof the process comprising: a) the step of sol-gel synthesis of the hybrid organic-inorganic material having a 2:1 lamellar structure in the presence of the compound and of the porous material saturated with the compound; b) the recovery of the composite.

Abstract: The present invention relates to a method for encapsulating a compound selected from the group consisting of at least one active substance, at least one microorganism and mixtures thereof in an organic-inorganic hybrid material of 2:1 lamellar structure, said material having the following general formula I: Nax[(Mg3)(Alx(RSi)4?x)O8+x(OH)2]??(I) the method comprising: a) sol-gel synthesis of the organic-inorganic hybrid material of 2:1 lamellar structure in the presence of the compound; b) recovery of the compound encapsulated in the material of general formula I. It further relates to the compound encapsulated in an organic-inorganic hybrid material of 2:1 lamellar structure of general formula I, a composition comprising same and its use for fertilizing, feeding, stimulating growth and/or prophylaxis of plants and/or improvement of the physical, chemical and/or biological properties of the soil or of the culture substrate of plants.

Abstract: The present invention relates to a method for encapsulating a compound selected from the group consisting of at least one active substance, at least one microorganism and mixtures thereof in an organic-inorganic hybrid material of 2:1 lamellar structure, said material having the following general formula I: Nax[(Mg3)(Alx(RSi)4?x)O8+x(OH)2] (I) the method comprising: a) sol-gel synthesis of the organic-inorganic hybrid material of 2:1 lamellar structure in the presence of the compound; b) recovery of the compound encapsulated in the material of general formula I. It further relates to the compound encapsulated in an organic-inorganic hybrid material of 2:1 lamellar structure of general formula I, a composition comprising same and its use for fertilizing, feeding, stimulating growth and/or prophylaxis of plants and/or improvement of the physical, chemical and/or biological properties of the soil or of the culture substrate of plants.

Abstract: The present invention concerns a process for preparing a composite of porous material/compound/hybrid organic-inorganic material having a 2:1 lamellar structure, said hybrid material having the following general formula I: Nax[(Mg3)(Alx(RSi)4-x)O8+x(OH)2]??(I) wherein x is a number such that 0?x<1.2 and R represents a C1-C30 alkyl group, an aryl group, a (C1-C30 alkyl)aryl group or an O—(C1-C30 alkyl) group, it being possible for the alkyl group to be substituted with a group chosen from a phenyl, vinyl, aminopropyl or mercaptopropyl group, and said compound being chosen from the group constituted of at least one active substance and at least one microorganism and mixtures thereof the process comprising: a) the step of sol-gel synthesis of the hybrid organic-inorganic material having a 2:1 lamellar structure in the presence of the compound and of the porous material saturated with the compound; b) the recovery of the composite.

Abstract: A process for the nitrilation of a fatty acid or of a fatty acid ester, which is optionally unsaturated, by reacting the fatty acid or fatty acid ester with ammonia in a reactor operating continuously in the gas phase or in the mixed gas-liquid phase in a temperature range of from 180 to 400° C., in the presence of a solid catalyst comprising at least one metal oxide, the metal of which belongs to column 8 of the periodic table, as a mixture with at least one metal oxide chosen from aluminum oxides, zirconium oxides, niobium oxides, tantalum oxides and tin oxides, the metal oxide(s), the metal of which belongs to column 8, being present in a volume ratio of 0.1 to 0.6 relative to the volume of the mixture of all the oxides.

Abstract: A process for the nitrilation of a fatty acid or of a fatty acid ester, which is optionally unsaturated, by reacting the fatty acid or fatty acid ester with ammonia in a reactor operating continuously in the gas phase or in the mixed gas-liquid phase in a temperature range of from 180 to 400° C., in the presence of a solid catalyst comprising at least one metal oxide, the metal of which belongs to column 8 of the periodic table, as a mixture with at least one metal oxide chosen from aluminum oxides, zirconium oxides, niobium oxides, tantalum oxides and tin oxides, the metal oxide(s), the metal of which belongs to column 8, being present in a volume ratio of 0.1 to 0.6 relative to the volume of the mixture of all the oxides.