Process for the manufacture of 1,1,1-...

Details Process for the manufacture of 1,1,1-... Process for the manufacture of 1,1,1-...

C - Chemistry, Metallurgy

07

C

260/658.2

C07C 19/08 (2006.01) C07C 17/087 (2006.01) C07C 17/21 (2006.01)

Patent

CA 1310022

TITLE IMPROVED PROCESS FOR THE MANUFACTURE OF 1,1,1-TRIFLUORODICHLOROETHANE AND 1,1,1,2-TETRAFLUOROCHLOROETHANE ABSTRACT OF THE DISCLOSURE An improved gas-phase process for the manufacture of 1,1,1-trifluorodichloroethane and/or 1,1,1,2-tetrafluorochloroethane by contacting a suitable tetrahaloethylene and/or pentahaloethane with hydrogen fluoride in the presence of Cr2O3, prepared by pyrolysis of (NH4)2Cr2O7, the reaction being conducted under controlled conditions whereby the production of pentafluoroethane is minimized.

580780

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