发明名称 |
PHOTOCHLORINATION OF 1,1,1,3,3-PENTAFLUOROPROPANE |
摘要 |
A process for preparing 1-chloro-1,1,3,3,3-pentafluoropropane, CF3CH2CF2Cl, comprising contacting in a reaction zone in the substantial absence of oxygen, reactants comprising chlorine and 1,1,1,3,3-pentafluoropropane, CF3CH2CHF2 (also referred to as HFC-245fa), and subjecting the reactants to actinic radiation, such as UV light at about 2,000 to 4,000 Angstroms, wherein: (1) inert gas is present at a concentration equal to or less than about 5 wt.% of the total weight of reactants; (2) the molar ratio of chlorine to CF3CH2CHF2 is from about 0.2:1 to about 1.5:1; and (3) the concentration of chlorinated product produced having greater than one chlorine present in the molecule is less than or equal to about 10 wt.%.
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申请公布号 |
WO03045880(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
WO2002US37557 |
申请日期 |
2002.11.22 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
NAIR, HARIDASAN, K.;SHANKLAND, IAN, R.;BRADLEY, DAVID, E.;CHENEY, MARTIN, E.;POSS, ANDREW, J.;DEMMIN, TIMOTHY, R.;NALEWAJEK, DAVID;VAN DER PUY, MICHAEL |
分类号 |
C07C17/10;C07C17/383;C07C17/395;C07C19/10;(IPC1-7):C07C17/10 |
主分类号 |
C07C17/10 |
代理机构 |
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