Solvay (Societe Anonyme)

Solvay & Cie (Societe Anonyme)

Solvay Interox Gmbh

Solvay

Solvey (Societe Anonyme)

Jean-Paul Schoebrechts

Francine Janssens

Vincent Wilmet

V&eacute;ronique Mathieu

James Franklin

Jean-Paul Pirard

Charles Dogimont

Benoit Heinrichs

Colery: Jean-Claude

Jacques Van Weynbergh

Patrice Delhez

1,1,1,3,3-pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and tetrachloromethane in the presence of a telomerization catalyst and of a nitrile.

Process for the preparation of 1.1.1.3.3-pentafluoropropane

1,1,1,3,3-Pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and tetrachloromethane in the presence of a telomerization catalyst and of a nitrile.

Method for preparing 1,1,1,3,3-pentafluoropropane

Process for the manufacture of crystalline solids comprising at least one element chosen from Groups IIIa, IVa and Va and at least one transition metal, according to which at least one source of oxide of the element from Groups IIIa, IVa and Va and at least one transition metal oxide source, which was dissolved beforehand in an alcohol having a pK below that of water, are hydrolysed in an aqueous medium comprising a mineralizing agent and the gel thus obtained is crystallized in the presence of a structuring agent.

Process for the manufacture of a crystalline solid

Process for preparing halogenated hydrocarbons, comprising at least 3 carbon atoms, by catalytic telomerization between a haloalkane and an olefin in the presence of an amine with a high boiling point as co-catalyst. 1,1,1,3,3-Pentachloropropane and 1,1,1,3,3-pentachlorobutane are thus prepared under mild conditions in good yield and the catalyst/co-catalyst system can be easily separated by distillation and recycled.

Process for preparing halogenated hydrocarbons

1,1,1,3,3-pentachlorobutane is obtained by reacting carbon tetrachloride with 2-chloro-1-propene in the presence of at least one copper (I) or (II) compound as telomerization catalyst. Advantageously, a polar compound can be present in the reaction mixture as solvent, and an amine, an amide or a trialkylphosphine oxide can be present as cocatalyst.

Method for the preparation of 1,1,1,3,3-pentachlorobutane

Halohydrocarbons comprising at least 3 carbon atoms are obtained by reaction between a haloalkane and a haloolefin in the presence of an organonickel compound as catalyst, and optionally in the presence of a solvent. 1,1,1,3,3-Pentachlorobutane can thus be obtained in good yield under mild conditions.

Process for the preparation of halohydrocarbons

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes including the metals of group VIII and Ib and difunctional complexing compounds including an electron-donor group and a hydrolysable group is hydrolysed in order to form a gel. Process for the conversion of chloroalkanes into alkenes containing less chlorine by means of hydrogen, using such a catalyst.

Process for the preparation of a catalyst and its use for the conversion

2-Chloro-1-propene is prepared by catalytic hydrochlorination of methylacetylene and/or of propadiene in a liquid medium containing at least one catalyst chosen from compounds of the metals from group VIIIa and from the lanthanides, and at least one organic solvent capable of dissolving the catalyst.

Process for preparation of 2-chloro-1-propene

Process for converting a chlorinated alkane into a less chlorinated

Catalytic system comprising a hydrogenation catalyst on a support which comprises at least one alkali metal and/or alkaline-earth metal and at least one fluorine-containing aluminium compound. Process for the hydrodechlorination of chlorinated hydrocarbons, more particularly of chlorofluorinated hydrocarbons, by means of hydrogen and in the presence of a catalytic system comprising a hydrogenation catalyst, especially palladium, on such a support.

Catalytic system comprising a hydrogenation catalyst on a support and

Direct synthesis of hydrogen peroxide by heterogeneous catalysis,

The invention relates to a process for the production of chloroform from carbon tetrachloride using a catalytic composition comprising a support on which a hydrogenating metal is deposited, the support comprising an alkali metal aluminate or alkaline earth metal aluminate. The invention also relates to a catalytic composition comprising a support on which platinum is deposited, the support comprising an aluminate having an inverse spinel structure.

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Grez Doiceau, Belgium

Jean-Paul Schoebrechts