EP 0874795 A1 19981104 - PROCESS FOR PRODUCING 1,1-DIFLUOROETHANE
Title (en)
PROCESS FOR PRODUCING 1,1-DIFLUOROETHANE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 1,1-DIFLUORETHAN
Title (fr)
PROCEDE DE PRODUCTION DU 1,1-DIFLUOROETHANE
Publication
Application
Priority
- US 9700289 W 19970103
- US 987196 P 19960105
- US 77843997 A 19970102
Abstract (en)
[origin: WO9725301A1] This invention is a process for the selective and high yield preparation of 1,1-difluoroethane (CHF2-CH3, HFC-152a) from chloroethene while minimizing formation of oligomeric and polymeric byproducts. This process comprises providing a liquid phase mixture containing chloroethene, HF, a tin catalyst, and one or a combination of compounds from the families of oxygen, nitrogen, and phosphorus-containing organic compounds, heating the mixture, and isolating the HFC-152a formed.
IPC 1-7
IPC 8 full level
C07C 17/21 (2006.01); C07C 19/08 (2006.01)
CPC (source: EP)
C07C 17/21 (2013.01)
Citation (search report)
See references of WO 9725301A1
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9725301 A1 19970717; CN 1212679 A 19990331; EP 0874795 A1 19981104; JP 2000503300 A 20000321
DOCDB simple family (application)
US 9700289 W 19970103; CN 97192803 A 19970103; EP 97903762 A 19970103; JP 52537997 A 19970103