Solvay (Societe Anonyme)

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Solvay

Jean-Pierre Catinat

Michel Strebelle

Dominique Balthasart

Francine Janssens

Patrick Gilbeau

Rene Walraevens

Dominique Bascour

Jean-Pierre Ganhy

Gilles Darago

Koen Vermeiren

Paul Lechaude

Philippe Krafft

Heteroleptic light emitting complexes having the general formula M(L)(L), wherein a) Lhas the formula E1-E2, wherein E1 is a 6-membered heteroaryl ring bound to the metal atom M by a dative bond and containing at least one donor hetero atom and E2 is bound to the metal atom by covalent or dative bonds and is selected from the group consisting of substituted or unsubstituted C-Caryl and substituted or un-substituted C-Cheteroaryl groups, b) ligand Lis selected from the group consisting of 1-(2,6 disubstituted phenyl)-2-phenyl-1 H-imidazole ligands or 5-(2,6 disubstituted phenyl)-1-phenyl-1 H-pyrazole ligands, and c) M is a non-radioactive transition metal with an atomic number of at least 40 and the sum of m and n is equal to half of the bond valency of metal M.

Heteroleptic light-emitting complexes

Novel substituted spirobifluorene compounds useful as intermediates for materials in organic electronics devices

Spirobifluorene compounds

Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a catalyst and in the possible presence of at least one solvent, in which the allyl chloride employed comprises less than 2000 ppm by weight of 1,5-hexadiene.

Process for the manufacture of 1,2-epoxy-3-chloropropane

The present invention refers to an aqueous hydrogen peroxide solution having a hydrogen peroxide concentration [HO] expressed as % by weight of the solution and an apparent pH of from pHto pH, such that pH=3.45&#x2212;0.0377&#xd7;[HO], and pH=3.76&#x2212;0.0379&#xd7;[HO]. The present invention also relates to a process for the preparation of said hydrogen peroxide solution and the use of said solution in a process for the epoxidation of olefins.

Aqueous hydrogen peroxide solution, process for its preparation and use thereof

Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a catalyst and in the possible presence of at least one solvent in an epoxidation medium comprising at least one liquid phase, in which process the pH of the liquid phase is controlled and maintained at a value of greater than or equal to 1.5 and less than 4.8.

Epoxidation catalyst based on titanium zeolite in the form of extruded granules. Use of this catalyst in the synthesis of epoxides, preferably 1,2-epoxy-3-chloropropane or 1,2-epoxypropane, by reacting an olefinic compound, preferably allyl chloride or propylene, with a peroxide compound, preferably hydrogen peroxide. Process for the preparation of an epoxide, preferably 1,2-epoxy-3-chloropropane or 1,2-epoxypropane, by reacting an olefinic compound, preferably allyl chloride or propylene, with a peroxide compound, preferably hydrogen peroxide, in the presence of the aforementioned catalyst.

Epoxidation catalyst, its use and epoxidation process in the presence of this catalyst

Process for manufacturing an oxirane by reaction between an olefin and a peroxide compound in a reactor containing a liquid phase, in the presence of water, one or more organic solvents, a catalyst and one or more compounds for increasing the selectivity of the catalyst toward epoxidation reactions, in which: if the process is performed in batchwise mode, the liquid phase present in the reactor when the reaction starts, if the process is performed continuously, all of the liquid phases that are fed continuously into the reactor has/have a total organic solvent content of at least 0.1 g/kg and of not more than 675 g/kg.

Process for manufacturing an oxirane

A plant for producing hydrogen peroxide and using the hydrogen peroxide so made for manufacturing an oxirane by reaction between an olefin and said hydrogen peroxide, wherein the hydrogen peroxide is manufactured by an alkylanthrahydroquinone (AO) process in which an aqueous hydrogen peroxide solution is obtained by extraction, with substantially pure water, of a mixture derived from the oxidation of at least one alkylanthrahydroquinone, without a subsequent washing, purification treatment or combination thereof.

Process for manufacturing an oxirane by reaction between an olefin and hydrogen peroxide in the presence of a catalyst and an organic diluent, according to which the hydrogen peroxide is an aqueous hydrogen peroxide solution obtained by extraction, with substantially pure water, of the mixture derived from the oxidation of at least one alkylanthrahydroquinone, without subsequent washing and/or purification treatment.

Method for making an oxirane

Process for manufacturing an oxirane in a reactor containing a liquid reaction medium, according to which an olefin is reacted, in a liquid reaction medium, with a peroxide compound in the presence of a solvent and in the presence of a solid catalyst which is used in the form of particles, at least some of which are in fluidized form in the reactor.

Oxirane production method

The invention relates to a catalyst obtained by deposition of a zeolite of TS-1 type on an inert honeycomb-shaped support which can be used in liquid-phase reactions for the epoxidation of olefins under the action of hydrogen peroxide.

Catalyst based on zelolite, use and epoxidation method in the presence of this catalyst

Process for manufacturing an epoxide by reaction between an olefin and a peroxide compound in the presence of a zeolite-based catalyst and in the presence of a solvent, in which the pH of the reaction medium comprising the olefin, the peroxide compound, the catalyst, the epoxide formed and the solvent is from 4.8 to 6.5.

Growing community of inventors

Waudrez, Belgium

Jean-Pierre Catinat