Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Centre National De La Recherche Scientifique

Commissariat a L'energie Atomique

Universitè De Montpellier

Orano Cycle

Ceramiques Techniques Et Industrielles (cti)

Universite De Montpeller II

Centre National De La Recherche Scientifique-cnrs

Orano Recyclage

Ceramiques Techniques Industrielles Cti

Université Montpellier II

Université De Montpellier 2

Yves Barre

Agnès Grandjean

Yannick Guari

Vincent Pacary

Joulia Larionova

Edouard Plasari

Pascal Viel

Vincent Huc

Raphaël Duval

Roger Neige

Hervé Muhr

Jérôme Long

Marc Simon

Claire Jaubert Cere

Olivier Cohin

Christian Guerin

Ekatarina Shilova

Didier Dhaler

Eric Louradour

Alexei Tokarev

Jeremy Causse

Alexandre Charlot

Virginie Fremy

Jérémy Causse

Alexey Tokarev

Solid nanocomposite material comprising nanoparticles of a hexacyanometallate or octacyanometallate of an alkali metal and of a transition metal, of formula [Alk]M[M'(CN)]in which Alk is an alkali metal, x is 1 or 2, M is a transition metal, n is 2 or 3, M&#x2032; is a transition metal, m is 6 or 8, z is 3 or 4, attached to at least one surface of a porous inorganic solid support, in which the nanoparticles are attached by adsorption to the at least one surface of the solid support, and in which the surface is a basic surface. Method for preparing this material. Method for extracting at least one metal cation from a liquid medium containing it, wherein the liquid medium is brought into contact with the material.

Solid nanocomposite material based on hexa- or octacyanometallates of alkali metals, method for preparing same, and method for extracting metal cations

A material in the form of an alveolar monolith consisting of a matrix of an inorganic oxide with a hierarchical and opened porosity comprising macropores, mesopores and micropores, said macropores, mesopores and micropores being interconnected, and nanoparticles of at least one metal cation exchange inorganic solid material being distributed in said porosity. A method for preparing this material and a method for separating a metal cation notably a cation of a radioactive isotope of a metal such as cesium using this material.

Inorganic cellular monobloc cation-exchange materials, the preparation method thereof, and separation method using same

The invention relates to a method for producing a solid nanocomposite material comprising nanoparticles of a metal coordination polymer with ligands CN, said nanoparticles satisfying the formula [Alk]M[M'(CN)]where Alk is an alkali metal, x is 1 or 2, M is a transition metal, n is 2 or 3, M&#x2032; is a transition metal, m is 6 or 8, and z is 3 or 4; said Mcations of the coordination polymer being bound by an organometallic bond or a coordination bond to an organic group R2 of an organic graft, and said organic graft furthermore being chemically attached, preferably by a covalent bond, to at least one surface of a solid support, by reaction of a group R1 of said graft with said surface.

Method for producing a solid nanocomposite material based on hexa- and octa-cyanometallates of alkali metals

A supported membrane is provided comprising an inorganic, solid porous filtration membrane supported by an inorganic, solid porous support, said supported membrane comprising nanoparticles of a metal coordination polymer with CN ligands comprising Mcations, where M is a transition metal and n is 2 or 3; and Alk[M'(CN)]anions where Alk is an alkaline metal, y is 0, 1 or 2, M&#x2032; is a transition metal, x is 3 or 4, and m is 6 or 8; said Mcations of the coordination polymer being bound through an organometallic or coordination bond to an organic group of an organic graft chemically attached to the surface of the filtration membrane, inside the pores of the filtration membrane, and optionally inside the pores of the support. The supported membrane may be used in a process for separating at least one metal cation and solid particles from a liquid medium containing the same.

Supported membrane functionalized with hexa- and octacyanometallates, process for the preparation thereof and separation process using same

The invention related to a complexing system for extracting a radionuclide from a waste water solution including calix[n]arene groups on the surface of a porous conducting material.

Solid-liquid process for extraction of radionuclides from waste solutions

A nanocomposite solid material includes nanoparticles of a metal coordination polymer with CN ligands comprising Mcations, in which M is a transition metal and n is 2 or 3; and anions [M'(CN)]in which M&#x2032; is a transition metal, x is 3 or 4, and m is 6 or 8. The Mcations of the coordination polymer are bound through an organometallic bond to an organic group of an organic graft chemically attached inside the pores of a support made of porous glass. The material can be used in a method for fixing (binding) a mineral pollutant, such as radioactive cesium, contained in a solution by bringing the solution in contact with the nanocomposite solid material.

Nanocomposite solid material based on hexa- and octa-cyanometallates, method for the preparation thereof and method for fixing mineral pollutants using said material

A method for decontamination of a liquid effluent including one or more radioactive chemical elements to be eliminated is disclosed. According to one aspect, the method includes The method includes mixing, in a first zone of a reactor, solid particles with the liquid which are able, by co-precipitation, adsorption and/or ion exchange, to capture and retain the radioactive chemical elements. The solid particles settle in a second zone of the reactor. The solids, including the radioactive chemical elements, are then separated from the remaining liquid.

Method for decontamination of a liquid effluent including one or more radioactive chemical elements by treatment in a fluidized bed

The invention relates to a continuous process for decontaminating a radioactive liquid effluent comprising one or more radioactive chemical elements to be removed that comprises the following steps: Application to the treatment of radioactive liquid effluents originating from nuclear installations.

Decontamination of radioactive liquid effluent by solid-liquid extraction using a recycle loop

The invention relates to ureido or carbamate derivatives of crown ethers and of silicon of formula: These derivatives can be grafted to silica gel for the purpose of obtaining supports for the chromatographic separation of cations or of molecules comprising amine functional groups, such as amino acids.

Ureido or carbamate derivatives of crown ethers and of silicon usable for preparing supports intended for the separation by chromatography of metal cations and of organic molecules comprising amine functional groups

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Uchaux, France

Yves Barre