基本信息:
- 专利标题: PHOTOCHLORINATION OF 1,1,1,3,3-PENTAFLUOROPROPANE
- 专利标题(中):1,1,1,3,3-三氟硼酸的光合作用
- 申请号:PCT/US2002/037557 申请日:2002-11-22
- 公开(公告)号:WO2003045880A1 公开(公告)日:2003-06-05
- 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
- 申请人: HONEYWELL INTERNATIONAL INC.
- 申请人地址: 101 Columbia Avenue, P.O. Box 2245, Morristown, NJ 07960 US
- 专利权人: HONEYWELL INTERNATIONAL INC.
- 当前专利权人: HONEYWELL INTERNATIONAL INC.
- 当前专利权人地址: 101 Columbia Avenue, P.O. Box 2245, Morristown, NJ 07960 US
- 代理机构: CRISS, Roger, H.
- 优先权: US09/994,438 20011127
- 主分类号: C07C17/10
- IPC分类号: C07C17/10
摘要:
A process for preparing 1-chloro-1,1,3,3,3-pentafluoropropane, CF 3 CH 2 CF 2 Cl, comprising contacting in a reaction zone in the substantial absence of oxygen, reactants comprising chlorine and 1,1,1,3,3-pentafluoropropane, CF 3 CH 2 CHF 2 (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 CF 3 CH 2 CHF 2 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.%.
摘要(中):
制备1-氯-1,1,3,3,3-五氟丙烷CF 3 CH 2 CF 2 Cl的方法,包括在基本不存在氧的反应区中接触,包含氯的反应物和1,1,1,3,3-五氟丙烷 ,CF 3 CH 2 CHF 2(也称为HFC-245fa),并使反应物进行光化辐射,例如约2,000至4,000埃的紫外光,其中:(1)惰性气体的存在浓度等于或小于约5 反应物总重量的重量%; (2)氯与CF 3 CH 2 CHF 2的摩尔比为约0.2:1至约1.5:1; 和(3)分子中存在的具有大于一个氯的氯化产物的浓度小于或等于约10重量%。