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- Recent research progress on the propylene epoxidation catalysts which use molecular oxygen or hydrogen peroxide as oxidants is reviewed. 评述了以分子氧和双氧水为氧源的丙烯环氧化催化剂体系的最新研究进展。
- epoxidation catalysts 双氧水
- epoxidation catalyst 环氧化催化剂
- The offer of a new job provided just the catalyst she needed. 这份新工作正是她所需要转变的契机。
- Recent progress on asymmetric epoxidation of unfunctionalized alkenes by chiral catalysts was summaried. 综述了手性催化剂催化的不对称环氧化反应研究进展情况。
- This review involves chiral metal complexes as catalysts for asymmetric epoxidation of simple olfins. 介绍了多类简单烯烃不对称环氧化反应的手性过渡金属配合物催化剂系统的催化效果。
- Those catalysts are used in small tubular reactors. 那些催化剂用于小型管式反应器。
- The last step is to regenerate the catalyst. 最后一步是将催化剂还原。
- And these catalysts were applied to catalyse asymmetric Michael addition of 2-nitropropane to chalcone and epoxidation of chalcone. 并用这些催化剂催化了2-硝基丙烷与查尔酮的不对称Michael加成和查尔酮的不对称环氧化反应。
- The epoxidation reaction of diphenylethylene by heteropolyacids catalysts is studied.TheCatalytic activity of heteropolyacids is explored. 本文以杂多酸为催化剂对二苯乙烯的环氧化反应进行了研究,探讨了杂多酸的催化活性。
- Catalysts can be used for about 5 years. 催化剂能用大约5年。
- Epoxidation and oxidation gave the racemic C18-juvenile hormone. 通过环氧化和氧化就得到外消旋的含十八个碳的昆虫返动激素。
- Many medicines are products of catalysts. 很多内服药就是催化反应的产物。
- Metal oxides from oil consumption damage catalysts. 金属氧化物破坏催化剂。
- War is a catalyst to help them to choose. 战争是一副催化剂来帮助他们选择。
- Purpose:Use in analytically reagents, catalysts. 用途:分析试剂、催化剂。
- In the epoxidation, chloroform and t butanol gave the best results. 在环己烯环氧化反应中 ;以氯仿和叔丁醇为溶剂时 ;环氧化反应的结果最好 .
- Debate is the best catalyst of thought. 争论是思想最好的催化剂。
- I see my role as being a catalyst for change. 我认为我的角色是促成变革。
- This chemical is called a catalyst. 这种特殊的化学材料是一种催化剂