L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

Chemoxal, S.a.

Centre National De La Recherche Scientifique

L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

Commissariat a L'energie Atomique

Chemoxal

Henry Ledon

Christine Devos

Roger Guilard

Didier DeMay

Stéphane Brandes

Panayotis Cocolios

Franck Denat

Robert J Corriu

Catherine Reye

Ahmad Mehdi

Philippe Girardon

Frederic Boschetti

Christel Girault

Martine Carre

Chloé Thieuleux

Michel Dupont

Jean-Marie Dhalluin

Jean-Jacques Wawrzyniak

Serge Jeanin

Jean-François Vie

Stephane Brandes

Jean-Pierre Boiteux

Pascal Crisinel

Jean Louise

Daniel Le Rouzic

Chloe Thieuleux

Bruno Roux-Fouillet

Alain Tabard

Francois Jerome

Jean-Michel Barbe

Jean-Louis Babouhot

Gabriel Canard

Roger Guillard

Catherine David

Gilles Teral

Remy Nicolle

Gerard DeClerck

Pierre Larnicol

Marie-Jeanne Desmurs

Michel Granger

Frédéric Boschetti

Paul Dognin

Philippe Campo

François Jerome

Géraud Dubois

Fanny Chaux

Guy Royal

Gregory Broeker

Geraud Dubois

Compounds of formula (I) are disclosed.  The tetrapyrole ring in formula (I) can be substituted with a metal cation (M); R, R, Rand Rseparately represent a hydrogen atom, a C1-4 alkyl or alkyloxy radical, or a phenyl radical optionally substituted by vinyl, hydroxy, nitro, amino, bromo, chloro, fluoro, iodo, benzyloxy, or hydroxymethyl radicals; R, R, Rand Rseparately represent a hydrogen atom or a C1-4 alkyl radical; R, Rand Rseparately represent a hydrogen atom, a C1-4 alkyl or alkyloxy radical optionally substituted by a halogen, or a phenyl radical optionally substituted by vinyl, hydroxy, nitro, amino, bromo, chloro, fluoro, iodo, benzyloxy, or hydroxymethyl radicals, wherein at least one of R, R, and Ris a phenyl radical. Compounds of formula (I) bound to a silica, a sol-gel material or a mesoporous silica are useful for selective trapping of carbon monoxide.

Materials for selective trapping of carbon monoxide

A method of preparing cyclene having formula (I) from triethylenetetraamine having formula (VIII) or ethylenediamine having formula (VIII') includes a series of steps. The first series of steps (I) includes a step A (one-pot preparation of the compound having formula (IIa) from the compound having formula (VIII)), followed by a step B (transforming the compound having formula (IIa) into cyclene having formula (I)). The second series of steps (II) includes a step C (preparing the compound having formula (IIb) from the compound having formula (VIII)), followed by a step D (transforming the compound having formula (IIb) into cylcene having formula (I)). The third series of steps (III) includes a step E involving the onepot preparation of the compound having formula (IIa) from the compound having formula (VIII), followed by a step B involving the transformation of the compound having formula (IIa) into cyclene having formula (I).

Method of preparing cis-8b-methyldecahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene, cis-decahydro-2a,4a,6a,8a-tetraazacyclopenta[fg]acenaphthylene, cyclene and functionalised cyclenes

The invention concerns a method for preparing organic-inorganic hybrid materials with controlled porosity and functionality comprising hydrolysis and condensation polymerization of a compound of formula (I): Z-R&#x2014;Si(OR)(OR')(OR&#x2033;), with an alkaline or alkaline-earth silicate in a mol ratio of (I)/(silicate)=1:9, in the presence of a non-ionic surfactant, to form a mesoporous silica represented by Z-R&#x2014;SiO9 SiO, whereon is then anchored an organic compound, represented by (&#x394;)N&#x2014;H, comprising a &#x2014;NH&#x2014; group capable of reacting with Z, to form a functionalized mesoporous silica represented by (&#x394;)N&#x2014;R&#x2014;SiO9 SiO, which is optionally complexed with a metallic cation to form an organometallic complex. The invention also concerns the use of these materials to separate gases.

Mesoporous organic-inorganic hybrid materials for separating gases

The invention concerns a method for preparing organic-inorganic hybrid materials with controlled porosity and functionality comprising hydrolysis and condensation polymerization of a compound of formula (I): Z-R&#x2014;Si(OR)(OR')(OR&#x2033;), with an alkaline or alkaline-earth silicate in a mol ratio of (I)/(silicate)=1:9, in the presence of a non-ionic surfactant, to form a mesoporous silica represented by Z-R&#x2014;SiO9 SiO, whereon is then anchored an organic compound, represented by (&#x394;)N&#x2014;H, comprising a &#x2014;NH&#x2014; group capable of reacting with Z, to form a functionalized mesoporous silica represented by (&#x394;)N&#x2014;R&#x2014;SiO9 SiOwhich is optionally complexed with a metallic cation to form an organometallic complex. The invention also concerns the use of these materials to separate gases.

A method for guaranteeing at least one characteristic of a fluid used for producing food products. This method utilizes a system for piping and delivering the fluid, combined with means for producing the products, in order to use the fluid for producing the products; the measuring a value of the characteristic; the comparing the measured value with a predetermined threshold value; the act of executing an action if the measured value departs from the threshold value; the combining the measured value with first information for identifying at least one product; and then the storing the associated value and the associated information.

Method of guaranteeing at least one characteristic of a fluid used for producing food products

The invention relates to a method of preparing nitrogen macrocycles having formula (I). The inventive method comprises a step involving the reaction of compounds (II) and (III) in order to form a compound having formula (IV). Said compound is subsequently made to react with a compound having formula (V) in order to form a compound having formula (VI). The latter compound is then subjected to an acid treatment 

Method of preparing nitrogen macrocycles

An apparatus and method for producing products using a fluid, which enables one to control the quality of the fluid from the point of production to the point of use, monitored on a microbiological, physical, and chemical basis. At least one sensor for the acquisition of purity information and a system for storing such purity information is included.

Installation for producing products using a fluid

Process for on-site production of ultra-high-purity hydrogen peroxide for the electronics industry

Process for the preparation of an ultra pure hydrogen peroxide solution by the ion exchange by sequence: anionic-cationic-anionic-cationic

Provided is a process for the preparation of an ultrapure hydrogen peroxide solution. The process comprises at least one sequence which includes passing a solution to be purified successively through at least one bed of anion-exchange adsorbents (AEA) and at least one bed of cation-exchange adsorbents (CEA). A non-zero proportion of the solution exiting from one of the beds is recycled to a point upstream of the one bed or upstream of a preceding bed or upstream of the first bed of the first of the at least one sequence. Also provided is a plant for the implementation of the inventive process.

Process for the preparation of an ultrapure solution of hydrogen peroxide by ion exchange with recycling

Provided is a process for the preparation of an ultrapure hydrogen peroxide solution. The process includes at least one sequence which includes successively passing a solution to be purified through at least one bed of cation-exchange adsorbents (CEA) and at least one bed of anion-exchange adsorbents (AEA). The beds of adsorbents each exhibit a height to diameter ratio of greater than 3. Also provided is a plant for the implementation of the inventive process.

Plant for the preparation of an ultra pure hydrogen peroxide solution by ionic exchange in beds having defined H/D ratios

Process for purification of aqueous solutions of hydrogen peroxide comprising the steps of adding one or more macroligands to said solution to form a mixture and forcing the mixture through an ultrafiltration membrane.

Process for the purification of hydrogen peroxide

Provided is a process for the preparation of an ultrapure hydrogen peroxide solution to be purified through at least one bed of anion-exchange adsorbents and at least one bed of cation-exchange adsorbents. The at least one bed of anion-exchange adsorbents contains carboxylate ion of formula R--COO.sup.- in which R represents a hydrogen atom, an aryl radical containing from 6 to 10 carbon atoms or an alkyl radical containing from 1 to 4 carbon atoms. The aryl and alkyl radicals are either unsubstituted or substituted by one or more fluorine atoms. A first bed of the at least one bed of anion-exchange adsorbents through which the solution to be purified passes is a bed containing carboxylate ions of formula R--COO.sup.-. Also provided is a plant for the implementation of the inventive process.

Process for the preparation of an ultra pure hydrogen peroxide solution

Provided is a process for the preparation of an ultrapure hydrogen peroxide solution. The process comprises at least one sequence which includes successively passing a solution to be purified through at least two beds of cation-exchange adsorbents (CEA) and two beds of anion-exchange adsorbents (AEA) according to the sequence:

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Versailles, France

Henry Ledon