Disposal of fluoroform (HFC-23)
AssigneeE. I. Du Pont de Nemours and Company
InventorsPeter Gideon Gelblum, Velliyur Nott Mallikarjuna Rao, Charles Joseph Noelke, Norman Herron
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Abstract
The present invention relates to the co-pyrolysis of fluoroform and chlorodifluoromethane to form a mixture of useful fluoroolefin and saturated HFCs, notably, tetrafluoroethylene and hexafluoropropylene and CF3CHF2 and CF3CHFCF3, respectively.
Claims14
A process for disposing of fluoroform by consuming it by co-pyrolyzing a reaction mixture of said fluoroform and chlorodifluoromethane at a temperature in the range of about 625-800° C., and contact time of less than about two seconds and obtaining as a result thereof a product mixture comprised of at least three compounds selected from the group consisting of tetrafluoroethylene (TFE), hexafluoropropylene (HFP), pentafluoroethane (CF3CHF2), and heptafluoropropane (CF3CHFCF3).
Dependencies are inferred from the claim text.