| 发明名称 |
PROCESS FOR THE PREPARATION OF 1,1,1,2,2-PENTAFLUOROETHANE |
| 摘要 |
<p>The invention provides a process for the preparation of 1,1,1,2,2-pentafluoroethane by fluorinating in the gas phase a halogenated hydrocarbon feedstock containing 2-chloro-1,1,1,2-tetrafluoroethane with hydrogen fluoride, the process being characterized in that: (i) a fluorinated chromium oxide obtained by fluorinating a chromium oxide represented by the formula: CrOm (1.5<m<3) is used as the catalyst, (ii) the mixing ratio (by mole) of hydrogen fluoride to halogenated hydrocarbon feedstock ranges from 1.5 to 10, and (iii) the fluorination is conducted at a temperature of 250 to 350 DEG C. The process makes it possible to prepare easily HFC-125 reduced in the contents of CFCs.</p> |
| 申请公布号 |
EP1024124(A4) |
申请公布日期 |
2001.03.28 |
| 申请号 |
EP19980945624 |
申请日期 |
1998.10.06 |
| 申请人 |
DAIKIN INDUSTRIES, LTD. |
发明人 |
KONO, SATORU;SHIBANUMA, TAKASHI;KANEMURA, TAKASHI;YOSHIMURA, TOSHIKAZU;TAKAHASHI, KAZUHIRO |
| 分类号 |
B01J27/132;C07B61/00;C07C17/20;C07C19/08;(IPC1-7):C07C19/08;B01J27/12;B01J23/26;B01J37/26 |
主分类号 |
B01J27/132 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
