Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1999-09-17
2000-12-26
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
570165, 570166, 570168, 570169, C07C 1708
Patent
active
061662755
ABSTRACT:
A liquid phase fluorination process for producing difluoromethane without corrosion is provided. In the process of this invention, methylene chloride and hydrogen fluoride are reacted in a reactor made of fluorinated polymer to produce a reaction product while a vaporized and superheated recycle stream of process reactants is fed into the reactor.
REFERENCES:
patent: 2749374 (1956-06-01), Ruh et al.
patent: 2749375 (1956-06-01), Ruh et al.
patent: 4091043 (1978-05-01), Ohsaka et al.
patent: 5347059 (1994-09-01), Pennetreau et al.
patent: 5495057 (1996-02-01), Kyung et al.
Cerri Gustavo
Hunt Maurice William
Keeler David William
Young Frank Peter
Collazo Marie L.
Siegel Alan
Szuch Colleen D.
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