酯化了的

The title complex has been synthesized by the reaction of silicotungstic acid , 1,10-phenanthroline monohydrate and cupric acetate.

以钨硅酸为催化剂，通过丁酸和异丁醇反应合成了丁酸异丁酯，探讨醇酸物质的量比、催化剂用量及反应时间对酯化率的影响。

To explore their catalytical capability, the esterification of phenyl formate and 1-butanol was chosen. It is found that the esterification yield exceeds 80%, which demonstrates the heteropoly acid has higher catalytic activity.

为了探索所得杂多酸的催化性能，考察了H_4PMo_(11)VO_(40)对苯甲酸和正丁醇酯化反应的催化效果，发现在最佳条件下酯收率达到80％多，证明其为一种较好的酸催化剂。

By comparing the dehydration methods of three catalytic esterification reactions and the catalysts used under negative pressure, the better method of synthesizing 2 ethylhexyl chloroacetate is using stannous oxide as catalyst under negative pressure.

通过对三种催化酯化反应的脱水方法及负压下使用不同催化剂的比较和选择，提出了以氧化亚锡为催化剂负压脱水合成氯乙酸2乙基己酯的方法。

Cyclohexyl acetate was synthesized by oil of vitriol,ferric chloride and copper sulfate,respectively,and the influence of copper sulfate containing water and no-water for the reaction was discussed.

摘 要：分别以浓硫酸、氯化铁、硫酸铜为催化剂催化合成醋酸环己酯，考察了有无结晶水的硫酸铜对酯化反应的影响。

The effects of catalyst synthesis and esterification reaction conditions on the yield of the isoamyl acetate were investigated.

将该催化剂用于醇酸反应制备乙酸异戊酯，考察了反应条件对酯化率的影响。

Enzymatic synthesis of glycerides directly from glycerol and polyunsaturated fatty acids was studied.

研究了在脂肪酶N435的催化作用下，游离多不饱和脂肪酸与甘油酯化合成的工艺，分别考察了甘油与脂肪酸的质量比、反应时间、反应温度、酶用量、初始加水量等单因素对酯化效果的影响。

The synthesization technics of MPEG- MAA was studied in this paper,which is an important intermediate used for preparation of polycarboxylate superplasticizer.

本文对制备聚羧酸系减水剂的重要中间体——甲基丙烯酸聚乙二醇单甲醚酯的合成工艺进行了研究，考察了反应时间、催化剂对甲苯磺酸的用量、阻聚剂对苯二酚的用量、反应温度及甲基丙烯酸与聚乙二醇单甲醚的用量比对酯化率的影响。

The results indicated that new Lewis acid ferric potassium alum was a green catalyst for the synthesis of ethyl lactate.

研究了新型Lewis酸铁钾矾的制备，并以该Lewis酸为催化剂，通过乳酸和乙醇反应合成乳酸乙酯，考察了催化剂用量、反应时间、酸醇物质的量比对酯化率的影响。

Three different strains of Monascus sp including A13, As3.554 and As3.972 were used to investigate the effects of their culture conditions (initial moisture content of steamed rice, culture time, and addition level of glucose and sucrose used as rapidly-efficient carbon source) on the esterifying capacity of fatty acid ester (converted by ethanol and hexanoic acid).

以A13、As3.554和As3.972为研究对象，比较了其培养参数米坯的初始水分、培养时间及以葡萄糖和蔗糖为速效碳源及添加量对底物己酸和乙醇转化为脂肪酸酯的酯化力的影响规律。

Dibutyl malate was synthesized from malic acid and butyl alcohol used solid superacid SO42-/TiO2 as catalyst.

以固体超强酸SO42-/TiO2为催化剂，以苹果酸和正丁醇为原料催化合成苹果酸二丁酯，并探讨了酸醇比、催化剂的用量、反应时间、带水剂等因素对酯化反应的影响。

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。