该复杂反应的特征在于酮-烯醇互变异构平衡和酯交换反应。
This complex reaction is characterized by a keto-enol tautomerism equilibrium and ester exchange reaction.
它需要进行一个被称作“酯交换”的过程，就是在催化剂的作用下，将咖啡渣与乙醇进行反应。
It employs a process called transesterification, which reacts the grounds with an alcohol in the presence of a catalyst.
此螯合反应是由酮—烯醇互变异构平衡过程和酯交换反应组成。
This complex reaction is characterized by a keto enol tautomerism equilibrium and ester exchange reaction.
此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction .
动力学分析表明：酯交换反应在转化率为95%之前，符合二级反应动力学模型。
The analysis of transesterification kinetics shows that the transesterification obeys a second-order reaction kinetics model when the transform ratio is under 95%.
生物柴油作为一种可再生能源，可以由动植物油脂通过酯交换反应来制备。
Biodiesel fuel, as a renewable energy and pro-environmental energy, can be produced by the transesterification reaction of vegetable oils or fatty acids with short chain alcohols.
探讨了酯交换反应和磷酸化反应的合成原理。
Synthetic principles of ester exchanging reaction and phosphating reaction were investigated.
微生物脂肪酶可以催化酯类化合物的分解、合成和酯交换，因而被广泛应用于食品、精细化工和医药等工业中。
The microbial lipase could be extensively used in food, fine chemistry, and medicine industry because it could catalyze decomposition, synthesis, and exchange of the esters.
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。
This flavour is synthesized by the ester interchange using diethyl oxalate and relative alcohol as materials.
固体酸性催化剂作为酯交换的催化剂是当前的研究热点。
The solid acid catalyst attracted much attention as the transesterification catalyst in recent research.
酯交换反应中由于反应物dmo的大量存在阻碍了平衡常数较小的歧化反应的进行，使得dpo选择性和收率较低。
A mass of DMO in the transesterification course inhibited the disproportionation which has a small equilibrium constant. As a result, selectivity and yield of DPO were low.
本文研究了磺酸化的聚苯乙烯树脂在酯化、酯交换、缩醛或缩酮的合成、醚的合成及(口片)呐重排反应中的应用。
This paper reports the study on the sulfonated polystyrene resin used in esterification, transesterification, synthesis of acetals or ketals, synthesis of ether and rearrangement reaction of pinacol.
并提出了如何测定酯交换反应程度的设想。
The way of how to measure the degree of transesterification is given.
研究了D,L -丙交酯在浓硫酸催化作用下与正丁醇进行酯交换反应合成乳酸丁酯的条件。
Butyl lactate was synthesized by the ester exchange reaction of d, L-lactide and n-butanol under the catalysis of sulfuric acid.
酯交换是油脂改性主要方法之一，使用催化剂可降低反应温度，加快反应速度。
Transesterification is one of main methods of oil modification. Catalysts are used to decrease reaction temperature, accelerate reaction velocity.
生物柴油作为一种清洁的可再生能源，可以由动植物油脂通过酯交换反应来制备。
Biodiesel is a kind of clean and renewable energy, which can be produced by transesterification reaction of vegetable oils or animal fat.
介绍了碳酸二甲酯与苯酚酯交换合成碳酸二苯酯的反应热力学。
Reaction thermodynamics of diphenyl carbonate (DPC) synthesis by the transesterification reaction from dimethyl carbonate and phenol is introduced.
该文以牛油为原料，在KOH的催化作用下与甲醇酯交换反应制备生物柴油。
The biodiesel production through transesterification reaction from tallow with methanol was studied, and KOH was used as catalyst.
加入催化剂所引起的酯交换反应改变了共混物的结构，使共混物的力学性能有所下降。
The transesterification, caused by the addition of catalyst, affects the structure of blends and the mechanical properties of blends decrease.
在生物柴油生产过程中，由于原料油与醇不互溶，导致生物柴油生产过程中酯交换速率低，影响了生产效率。
In the process of preparation of biodiesel, the immiscibility of oil and alcohol leads to low transesterification rate and low production efficiency.
结果表明，PC/PET共混体系在熔融过程中有酯交换反应发生，反应程度与组分含量、熔融温度和共混时间有关。
The result shows, the ester exchange reaction did take place in PC/PET melting blend system, the extent of exchange reaction depends on content of the components, mixing temperature and mixing time.
综述了固体碱催化剂的种类及其特点，讨论了固体碱催化剂在油脂酯交换反应中的应用。
The variety and characteristics of solid base catalyst were summarized. And the application of solid base catalyst in the transesterification of lipid was discussed.
由硬脂酸乙酯与蔗糖在无毒溶剂丙二醇存在下进行酯交换反应，合成了硬脂酸蔗糖酯。
The ethyl stearate react with sucrose and to synthesize the sucrose fatty acid ester in the poisonless solvent (propanediol).
由硬脂酸乙酯与蔗糖在无毒溶剂丙二醇存在下进行酯交换反应，合成了硬脂酸蔗糖酯。
The poison methyl alcohol has been replaced by alcohol to react with Stearic acid and to synthesize the ethyl stearate.
油脂酯交换催化剂有：常用酸碱催化剂、酶、固体碱、碘、金属配合物等。
The oil transesterification catalysts include usually used acid-base catalyst, solid base, lipase, iodine, metal complex, et al.
该酯交换反应遵循二级反应动力学。
The transesterification obeys a second order reaction kinetics.
该酯交换反应遵循二级反应动力学。
The transesterification obeys a second order reaction kinetics.
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