查询词典 Beckmann rearrangement

In charpter one, the kinetics of Beckmann rearrangement reaction of the production of caprolactam has been studied. We used the hypothermia reaction data cited by the literature, Six kinetic models were proposed based on the possible radical reaction mechanisms and reasonable simplification. By employing the optimization technique, the optimum kinetic model was suggested.

本文利用已有文献报道的低温反应数据，结合重排反应过程的特点和现象，作出合理的建设和简化，推导出6种可能的重排反应机理，利用最优化计算技术，经过模型筛选，确定了最佳的动力学模型。

It was found that the Beckmann rearrangement of cyclohexanone oxime could be performed smoothly in the catalytic media consisting of room temperature ionic liquid and acidic phosphorated compounds, and excellent conversion and selectivity were achieved under mild conditions without any additional organic solvents.

发现酸性含磷化合物，如五氯化磷等在离子液体中可以高效地实现环己酮肟重排制己内酰胺，具有不需另加有机溶剂，选择性高等优点。

The Beckmann rearrangement of cyclohexanone oxime was effectively realized to prepare e-caprolactam by using phosphorous trichloride (PCl3) as catalyst in a two-phase system composed of 1-n-butyl-3- methylimidazolium tetrafluoroborate ([BF4]) ionic liquids and toluene.

在1丁基3甲基咪唑四氟硼酸盐([BF4])与甲苯组成的两相体系中，以三氯化磷(PCl3)为催化剂，实现了由环己酮肟制备己内酰胺的液相贝克曼重排反应，两相体系有利于反应控制和体系取热。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。