发明名称 |
PROCESS TO CONTINUOUSLY PREPARE AN AQUEOUS MIXTURE OF epsilon -CAPROLACTAM AND epsilon CAPROLACTAM PRECURSORS |
摘要 |
Process for preparing an aqueous mixture of epsilon -caprolactam and 6-aminocaproic acid and or 6-aminocaproamide which involves, as the reductive amination step, contacting 5-formylvaleric acid and/or an alkyl 5-formylvalerate in water as solvent with hydrogen and an excess of ammonia in the presence of a ruthenium on carrier, as a catalyst, wherein the carrier is titanium oxide, zirconium oxide, graphite or carbon and the catalyst also contains at least one of the metals of group 8-11, or a compound of these metals. The aqueous mixture can be used to prepare epsilon -caprolactam. |
申请公布号 |
WO0014062(A1) |
申请公布日期 |
2000.03.16 |
申请号 |
WO1999NL00544 |
申请日期 |
1999.09.01 |
申请人 |
DSM N.V.;E.I. DU PONT DE NEMOURS AND COMPANY;PESTMAN, ROBERT;VAN LIESHOUT, LAMBERTUS, HUBERTUS, WILHELMUS, MARIA |
发明人 |
PESTMAN, ROBERT;VAN LIESHOUT, LAMBERTUS, HUBERTUS, WILHELMUS, MARIA |
分类号 |
C07D223/10;B01J23/46;C07B61/00;C07C227/08;C07C229/08;C07C231/14;C07C237/06;C07D201/08 |
主分类号 |
C07D223/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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