| 摘要 |
<p>The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting l,l,l-trifluoro 2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF3CHFCH2X, wherein X is CI or F, and (b) dehydrohalogenating the compound of formula CF3CHFCH2Xto produce 1234yf.</p> |
