Solvay (societe Anonyme)

Solvay Sa

Olivier Buyle

Vincent Wilmet

Francine Janssens

Philippe Krafft

Alain Lambert

Lionel Casaubon Seignour

Pierre Barthelemy

Pierre Dournel

Eberhard Piepho

Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from

Process for obtaining a purified hydrofluoroalkane

Process for the manufacture of pentafluoroethane, according to which tetrafluoroethylene is subjected to reaction with an organic nitrogenous base hydrofluoride at a temperature of greater than 100&#xb0; C. and not exceeding 160&#xb0; C.

Pentafluoroethane production method

1,1,1,3,3-Pentafluorobutane forms azeotropic or pseudoazeotropic compositions with alkanes possessing 5 or 6 carbon atoms. These compositions can be used in particular as blowing agents in polymeric cellular foams.

Azeotropic or pseudo-azeotropic composition and use of these compositions

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Autre-Eglise, Belgium

Olivier Buyle