发明名称 |
Process for producing epsilon-caprolactam and apparatus for the process |
摘要 |
A process is provided for producing epsi-caprolactam from cyclohexanone oxime. The process comprises a evaporation step of a mixture of cyclohexanone oxime and a solvent by introducing the mixture into a fluidized bed in which inert particles is fluidized by an inert gas, the particles having heat enough to evaporate the mixture; and a rearrangement step of cyclohexanone oxime in the evaporated mixture into epsi-caprolactam by a gas phase Beckmann rearrangement reaction using a solid catalyst, excluding a catalyst consisting of a boric acid or a boron oxide.
|
申请公布号 |
US6482945(B2) |
申请公布日期 |
2002.11.19 |
申请号 |
US20010964424 |
申请日期 |
2001.09.28 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
HOELDERICH WOLFGANG F.;DAHLHOFF GERD;SBRESNY ANDRE;ICHIHASHI HIROSHI |
分类号 |
C07D223/10;B01D1/00;B01D1/16;C07B61/00;C07C249/14;C07C251/44;C07D201/04;C07D201/06;(IPC1-7):C07D201/04 |
主分类号 |
C07D223/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|