| 发明名称 | Process for preparing 3-cyano-3,5,5-trimethylcyclohexanone | ||
| 摘要 | The present invention refers to the preparation of 3-cyano-3,5,5-trimethylcyclohexanone (isophorone nitrile, abbreviation IPN) using a calcium alkoxide, particularly calcium ethoxide, as catalyst. | ||
| 申请公布号 | US9187412(B2) | 申请公布日期 | 2015.11.17 |
| 申请号 | US201214124449 | 申请日期 | 2012.06.05 |
| 申请人 | Evonik Degussa GmbH | 发明人 | Schwarz Markus;Merkel Andreas;Nitz Joerg-Joachim;Grund Gerda |
| 分类号 | C07C253/10;C07C253/30 | 主分类号 | C07C253/10 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A method for preparing isophorone nitrile, the method comprising: reacting isophorone and hydrocyanic acid to form isophorone nitrile in a heterogeneous phase in the presence of a calcium alkoxide catalyst at a reaction temperature of from 80 to 130° C. for a reaction time of from 5 to 180 minutes, wherein a BET surface area of the calcium alkoxide is at least 5 m2/g. | ||
| 地址 | Essen DE | ||