Study on the Performance of Regenerated Catalyst for Ammonoximation of Cyclohexanone

当提供保护给催化剂时，为 70kt/a cyclohexanone ammonoximation 广告测试单位的撤销催化剂和改革催化剂上的学习表明了硅添加剂的合适的数量的增加能在催化剂压制硅的导致增溶的损失。为催化剂新生比作直接锻烧方法，通过催化剂的预告的处理锻烧的新生方法的采纳能对催化剂隧道的恢复和在那里产生的催化剂的表演的改进更有益，它能反复被改革并且利用。商业规模测试催化剂的结果显示了改革催化剂的好表演，它能被用于乘的四，导致 cyclohexanone-oximein 花去大块的生产的减小。

The study on the deactivated catalyst and the regenerated catalyst for the 70 kt/a cyclohexanone ammonoximation commercial test unit had revealed that addition of a proper amount of silicon additive could suppress the solubilization-induced loss of silicon in catalyst while providing protection to the catalyst. Compared to the direct calcination method for catalyst regeneration, adoption of the regeneration method through pretreatment-calcination of catalyst could be more beneficial to the restoration of catalyst channels and enhancement of the performance of the regenerated catalyst, which could be repeatedly regenerated and utilized. The outcome of commercial scale testing of the catalyst had indicated the good performance of the regenerated catalyst, which could be used for four times, resulting in a reduction of the production cost of cyclohexanone-oxime in big chunks.