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US 5,334,788 AGranted
Reaction of substrate compounds with fluorine in an eductor
AssigneePCR Group, Inc.
InventorsKeith B. Baucom, Adam C. Alty, Earl J. Kimmel
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Abstract
Substrate compounds are reacted by passing them through an eductor with fluorine gas optionally in the presence of a liquid medium and preferably in a loop reactor with cooling means thereby providing rapid but controlled reaction suitable for industrial scale production. Vinylidene chloride, for example, smoothly produces dichlorodifluoroethane and dichlorotrifluoroethane in good yield.
Claims11
A process comprising
- (a) inducing movement in a fluid stream which is or contains a substrate compound having at least one fluorine-reactive site to provide a moving substrate stream
- (b) educting elemental fluorine, alone, or in admixture with an inert gas, into the stream of fluid substrate whereby said fluorine is reacted rapidly with said substrate in a controlled manner;
- and
- (c) recovering a reacted substrate compound, a mixture of such compounds or an oligomeric derivative of such compound or compounds, and
- wherein step (b) is carried out in an eductor comprising a venturi nozzle having a throat for directing the moving fluid substrate and a suction chamber for introducing fluorine upstream of said throat into said moving fluid substrate.
2 more elements
Dependencies are inferred from the claim text.