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- The purpos of this paper is to study the technology of optimum condition of Benzyl Salicylate synthesis with ester interchang method. 本文介绍用正交试验法确定酯交换合成水杨酸苄酯的工艺条件,讨论了原料摩尔比、反应温度、催化剂用量以及反应时间对酯交换反应的影响。
- This flavour is synthesized by the ester interchange using diethyl oxalate and relative alcohol as materials. 这些香料都是以草酸二乙酯与相应的醇为原料,通过酯交换反应来合成的。
- The synthesis of butyl,2-etheylhexyl,decyl and dodecyl methacrylates by ester interchange was studied.A suitable system of catalyst and inhibitor was obtained. 采用酯交换工艺,有机锡为催化剂,进行了甲基丙烯酸丁酯、甲基丙烯酸-2-乙基己酯、甲基丙烯酸正癸酯、甲基丙烯酸正十二醇酯等高碳烷基酯合成反应过程的研究。
- The synthesis of butyl，2－etheylhexyl，decyl and dodecyl methacrylates by ester interchange was studied.A suitable system of catalyst and inhibitor was obtained. 采用酯交换工艺，有机锡为催化剂，进行了甲基丙烯酸丁酯、甲基丙烯酸－2－乙基己酯、甲基丙烯酸正癸酯、甲基丙烯酸正十二醇酯等高碳烷基酯合成反应过程的研究。
- By discussing the standard technology of open EDI，a Web interchange method for Internet EDI is put forward and the security on open EDI is expounded. 通过对开放式电子数据交换技术标准的讨论，提出了基于因特网的电子数据交换软件的实现方法及安全保密措施.
- ester interchange polymerization 酯交换聚合
- Synthesis of Higher Carbon Alkyl Methacrylates by Ester Interchange 酯交换法合成甲基丙烯酸高碳烷基酯
- Keywords DMT;PDO;ester interchange reaction;kinetics; 对苯二甲酸二甲酯;1;3-丙二醇;酯交换;动力学;
- With the data comparison method and the component interchanging method,reasons for engine stalling when starting of CEDRIC A33car are analyzed. 采用数据比较和零件互换的方法,分析了风度A33轿车发动机起动时易熄火故障产生的原因。
- The method seems good but it needs to be tried out. 这个方法似乎不错，但需要试验一下。
- Keywords Cnidilide;Stereoisome;Ester interchange ring closure reaction; 蛇床酞内酯;立体异构体;酯交换环合反应;
- Involving interchange; reciprocal. 涉及交换的; 相互的
- I can't claim infallibility for this method. 我不敢说这方法绝对有效。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- Summer fallow is the best method of destroying weeds. 夏季休耕是消灭杂草的最好办法。
- STUDY ON ESTER INTERCHANGE REACTION OF DIMETHYL TEREPHTHALATE AND 1,3-PROPANEDIO 对苯二甲酸二甲酯与1,3-丙二醇的酯交换反应研究
- We should leave the motorway at the next interchange. 我们应该在下一个立体交叉道驶离高速公路。
- Popularizing this new method is not an easy job. 推广这种新方法不是件容易的工作。
- This is not an economical method of heating. 这不是一种经济的取暖方式。
- I have a simple and easy method. 我有个简易的方法。
