Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1995-06-07
1998-02-03
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
570164, 570166, 570167, 570168, C07C 17087
Patent
active
057146500
ABSTRACT:
A process is disclosed for producing 1,1-difluoroethane (HFC-152a) in a liquid phase by contacting chloroethene and hydrogen fluoride in the presence of a tin tetrahalide catalyst. The ability to reduce tar formation and increase volumetric productivity is also disclosed.
REFERENCES:
patent: 2495407 (1950-01-01), Chapman et al.
patent: 3190930 (1965-06-01), Brock et al.
patent: 3862995 (1975-01-01), Martens et al.
patent: 3904701 (1975-09-01), Schultz et al.
patent: 4147733 (1979-04-01), Fiske et al.
patent: 4766258 (1988-08-01), Komatsu et al.
patent: 5008474 (1991-04-01), Wairseveas et al.
patent: 5155082 (1992-10-01), Tung et al.
patent: 5208395 (1993-05-01), Elsheikh
patent: 5396001 (1995-03-01), Peanstreau
Vogel "Practical Organic Chemistry" 3rd ed. 1957 pp. 92-95.
Harold R. Null, Phase Equilibrium In Process Design, Wiley-Interscience, 124-126, 1970.
Stanley M. Walas, Phase Equilibriua In Chem. Eng., Butterworth Publishers, 165-244, 1985.
E. I. Du Pont de Nemours and Company
Ivy C. Warren
Smith Lyman H.
LandOfFree
Continuous manufacture of 1,1-difluoroethane does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous manufacture of 1,1-difluoroethane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous manufacture of 1,1-difluoroethane will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-663990