发明名称 |
Process for regenerating catalyst for producing e-caprolactam and process for producing e-caprolactam |
摘要 |
The present invention provides a process for regenerating a catalyst for producing e-caprolactam comprising the steps of adsorbing a silicon compound on a zeolite catalyst that had been used for a Beckmann rearrangement reaction of cyclohexanone oxime and contacting the catalyst with an aqueous solution containing a compound selected from a quaternary ammonium compound, lower alkylamines and ammonia. The present invention also provides a process for producing e-caprolactam comprising subjecting cyclohexanone oxime to the Beckmann rearrangement reaction in the presence of the catalyst thus regenerated.
|
申请公布号 |
US7687621(B2) |
申请公布日期 |
2010.03.30 |
申请号 |
US20070822141 |
申请日期 |
2007.07.02 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
SUGITA KEISUKE;KITAMURA MASARU |
分类号 |
C07D201/04 |
主分类号 |
C07D201/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|