| 发明名称 |
A PROCESS FOR THE PRODUCTION OF DIFLUOROMETHANE |
| 摘要 |
A process for vapor phase fluorination of methylene chloride with anhydrous hydrogen fluoride (AHF) in the presence of a coprecipitated chromia-alumina impregnated with zinc salt as catalyst, removing HCl and heavier components by distillation, subjecting HFC-32 rich cut to a further step of fluorination in the presence of a fluorination catalyst. |
| 申请公布号 |
EP1542949(A4) |
申请公布日期 |
2006.05.17 |
| 申请号 |
EP20020745779 |
申请日期 |
2002.07.10 |
| 申请人 |
SRF LIMITED |
发明人 |
RAMANATHAN, RAJASEKARAN;ANAND, RAJDEEP;JAIN, ANURAG;RAO, JAMPANI, MADHUSUDANA |
| 分类号 |
B01J23/26;C07B61/00;C07C17/00;C07C17/08;C07C17/20;C07C17/395;C07C19/08;C07C21/18 |
主分类号 |
B01J23/26 |
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