大学英语词汇短语释义解析及例句 phase transfer catalyst

大学英语词汇短语释义解析及例句 phase transfer catalyst


释义:

phase transfer catalyst 相转移催化剂

例句:



Polymer phase transfer catalyst was a good catalyst.

高分子相转移催化剂是一种良好的催化剂。



The phase transfer catalyst Ql can be repeatedly used.

相转移催化剂可反复使用。



Polyvinyl chloride-polyethylene polyamine resin is a new polymer phase transfer catalyst.

它是一种新型的高分子相转移催化剂。



As a phase transfer catalyst polyethylene glycol can improve the selectivity of the reaction.

聚乙二醇作为相转移催化剂可以提高反应的选择性。



Phase transfer catalyst was used for synthesis of citral diethyl acetal, the yield has increased.

用相转移催化合成了柠檬醛二乙缩醛,提高了产率。



The results showed that poly( ethylene glycol) as a phase transfer catalyst can raise the conversion.

指出聚乙二醇作为相转移催化剂可增加转化率。



A new kind of phase transfer catalyst of phosphotungstate was synthesized by a new way in this paper.

采用新的合成方法,合成了一种新型磷钨杂多酸盐相转移催化剂,研究了它在不同合成条件下的产率。



Polyethylene glycols can be used as effective phase transfer catalyst in halogen exchange fluorination.

聚乙二醇可作为卤素交换氟化反应有效的相转移催化剂。



This paper discusses the principle with which phase transfer catalyst ACTS on the synthesis of paclobutrazol.

本文讨论了相转移催化剂在多效唑合成中的作用原理。



The catalyst has high activity, selectivity and the characteristic of reaction controlled phase transfer catalyst.

该催化剂具有高活性、高选择性,且具有反应控制相转移催化剂的特性。



By repeated tests, a proper amount of phase transfer catalyst in the TCR -step synthesis of paclobutrazol is fixed.

通过反复试验,确定了多效唑三步合成中相转移催化剂的最佳用量。



The kinetic of hydrolysis of benzal chloride was studied by using a new kind of phase transfer catalyst in this paper.

使用超声波促进邻氯苄叉二氯的水解,研究各反应条件对反应速度的影响。



Add a phase transfer catalyst PEG-400 and the inhibitor ofp-tert-butyl-catechol synthesis of cinnamic acid on the yield …

请求英语高手翻译一下添加相转移催化剂PEG-400和阻聚剂对叔…



In this paper, we investigated the arylation reaction ofp-amino acetylbenzene with ferrocene catalyzed by phase transfer catalyst.

本文以对氨基苯乙酮和二茂铁为底物,在相转移催化剂存在的条件下发生重氮芳基化反应。



CONCLUSION The phase transfer catalyst has advantages of simple starting material, convenient operations and mild reaction conditions.

相转移法合成萘丁美酮具有所用试剂易得,操作方法简便,反应条件温和,成本较低等优点。



The results show that catalytic efficiency of the phase transfer catalyst BETAC is higher than TBAB, and TBAB is nearly as efficient as TEBA.

实验结果表明:本体系中相转移催化剂的催化效率是苄基三乙基氯化铵大于四丁基溴化铵和四乙基溴化铵;

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