发明名称 |
Process for manufacturing 1,1,1,2-tetrafluoroethane |
摘要 |
The present invention relates to a process for manufacturing 1,1,1,2-tetrafluoroethane (HFC-134a) from trichloroethylene (TCE) and hydrogen fluoride (HF) by reacting the HCFC-133a with the HF to produce the HFC-134a and reacting the TCE with the HF to produce 1-choro-2,2,2-trifluoroethane (HCFC-133a), characterized by that a part of said HF is mixed with the mixture containing the HFC-134a and the remaining portion of said HF is fed with said TCE in portions to at least two sections of a reactor for producing said HCFC-133a. According the present process, the temperature change in the reactor for producing HCFC-133a is maintained within a narrow range over the whole reaction procedures, and the catalytic activity is well maintained. Further, the formation of by-products is considerably prevented and thus the productivity is remarkably enhanced.
|
申请公布号 |
US5841007(A) |
申请公布日期 |
1998.11.24 |
申请号 |
US19960630678 |
申请日期 |
1996.04.12 |
申请人 |
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
AHN, BYOUNG SUNG;KWON, YOUNG SOO;PARK, KUN YOU;CHUNG, MOON JO |
分类号 |
C07C17/20;C07C17/21;C07C19/08;(IPC1-7):C07C17/00 |
主分类号 |
C07C17/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|