| 发明名称 | Process for producing 2,3,3,3-tetrafluoropropene | ||
| 摘要 | The present invention relates, in part, to the discovery that the presence of HF in a HCFC-244bb feedstream in a reaction for the preparation of HFO-1234yf results in selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantially removing HF, it is shown that the selectivity to HFO-1234yf via dehydrochlorination of HCFC-244bb is improved. | ||
| 申请公布号 | US9493384(B2) | 申请公布日期 | 2016.11.15 |
| 申请号 | US201214348804 | 申请日期 | 2012.09.29 |
| 申请人 | HONEYWELL INTERNATIONAL INC. | 发明人 | Wang Haiyou;Tung Hsueh Sung |
| 分类号 | C07C17/25;B01J35/00;B01J27/10;B01J27/12;B01J27/138;C07B35/06 | 主分类号 | C07C17/25 |
| 代理机构 | Scully Scott Murphy and Presser | 代理人 | Scully Scott Murphy and Presser |
| 主权项 | 1. A method for enhancing the selectivity of 2-chloro-1,1,1,2-tetrafluoropropane to 2,3,3,3-tetrafluoropropene in a dehydrochlorination reaction which comprises: contacting a starting composition comprising 2-chloro-1,1,1,2-tetrahydrofluoropropane with a dehydrochlorination catalyst in a dehydrochlorination reactor that is substantially free of HF such that the amount of HF to the reactor is less than 5000 ppm to produce a final composition comprising 2,3,3,3-tetrafluoropropene. | ||
| 地址 | Morristown NJ US | ||