• The transesterification obeys a second order reaction kinetics.

    该酯交换反应遵循二级反应动力学。

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  • The most commonly used method is transesterification presently.

    目前,酯交换法是最普遍使用一种方法。

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  • The solid acid catalyst attracted much attention as the transesterification catalyst in recent research.

    固体酸性催化剂作为酯交换的催化剂是当前的研究热点。

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  • It employs a process called transesterification, which reacts the grounds with an alcohol in the presence of a catalyst.

    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。

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  • The results show that, microwave and ionic liquid had synergetic effect on transesterification when using NaOH as catalyst.

    研究结果表明,用碱作催化剂时,微波和离子液体对绝缘油的制备有协同促进作用。

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  • The oil transesterification catalysts include usually used acid-base catalyst, solid base, lipase, iodine, metal complex, et al.

    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。

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  • Reinforcing the research on the route of transesterification and realizing industrialization as soon as possible were put forward.

    认为国内应先加强酯交换法合成碳酸二苯酯的研究,尽快实现工业化。

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  • The biodiesel production through transesterification reaction from tallow with methanol was studied, and KOH was used as catalyst.

    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。

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  • Butyl methacrylate (BMA) was synthesized from n? Butanol and methyl methacrylate at homogeneous reaction by transesterification process.

    采用酯交换工艺,在均相条件下,由甲基丙烯酸甲酯和正丁醇合成了甲基丙烯酸丁酯(BMA)。

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  • Biodiesel is a kind of clean and renewable energy, which can be produced by transesterification reaction of vegetable oils or animal fat.

    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。

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  • The process for the esterification and transesterification of waste restaurant grease catalyzed by solid KHSO4 was studied in this paper.

    对固体酸性催化剂KHSO4催化地沟油的酯化及转酯化反应进行了研究。

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  • The transesterification, caused by the addition of catalyst, affects the structure of blends and the mechanical properties of blends decrease.

    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。

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  • Transesterification is one of main methods of oil modification. Catalysts are used to decrease reaction temperature, accelerate reaction velocity.

    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。

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  • Reaction thermodynamics of diphenyl carbonate (DPC) synthesis by the transesterification reaction from dimethyl carbonate and phenol is introduced.

    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。

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  • Biodiesel fuel (BDF) has been made by transesterification of extracted oil of soybean oil sediment with methanol in the presence of KOH as catalyst.

    大豆油脚浸出油与甲醇在催化剂koh作用下通过酯交换反应制得生物柴油(BDF)。

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  • In the process of preparation of biodiesel, the immiscibility of oil and alcohol leads to low transesterification rate and low production efficiency.

    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。

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  • It was found that acyl migration occurred during lipase-catalyzed transesterification, which caused the production of byproduct and affected the quality.

    酶法制备结构酯的过程中,由于酰基位移的发生而生成了副产品,并影响了产品质量。

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  • It is obvious that the reaction of synthesizing DMC by transesterification of PC and methanol can be promoted preferably by the reactive extraction technique.

    可见,反应-萃取技术对PC与甲醇酯交换合成DMC反应具有较好的促进作用。

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  • Current situation of biodiesel synthesis catalyzed by lipase transesterification was introduced from the aspects of enzyme immobilization and non-aqueous media.

    从固定化和非水介质两方面介绍了脂肪酶催化合成生物柴油的现状。

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  • The analysis of transesterification kinetics shows that the transesterification obeys a second-order reaction kinetics model when the transform ratio is under 95%.

    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。

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  • The technology of production of bio diesel fuel that is new developed, in Europe and obtained from vegetable oil by transesterification is described in this paper.

    介绍了新开发的,由植物油脂经甲酯化生产生物柴油的工艺和方法。

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  • The applications of transesterification process in preparing several methacrylates were introduced, especially the research progress of used catalysts was reviewed.

    介绍了酯交换法在制备几种重要的甲基丙烯酸类酯中的应用,重点对酯交换法所用催化剂的研究进行了综述。

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  • The variety and characteristics of solid base catalyst were summarized. And the application of solid base catalyst in the transesterification of lipid was discussed.

    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。

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  • Biodiesel and material is separated effectively through water vapour distillation, and the high pure degree biodiesel is acquired without double transesterification.

    水蒸汽蒸馏技术实现生物柴油与未反应原料的有效分离,不需要二次酯交换反应就获得了高纯度的生物柴油。

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  • Effect of transesterification on high-pressure crystallization behaviour of PET/PC blend system was investigated by torque rheometer, DSC, SEM and WAXD measurements.

    利用转矩流变仪、DSC、SEM及WAXD等表征手段研究了PET/PC共混体系的酯交换反应对其高压结晶行为的影响。

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  • The applications of non-aqueous enzymatic reaction in several organic synthesis reactions such as enzymatic esterification, transesterification and polymerization etc.

    介绍了非水介质中酶促反应在几种有机合成反应中的应用,包括酶促酯化反应、转酯反应、聚合反应等。

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  • Bis(p-hydroxybenzonic acid butanediolate)(BBHB)as mesogenic unit was prepared with methyl p-hydroxybenzoate, 1,4-butanediol and catalyst by melting transesterification.

    以对羟基苯甲酸甲酯、1,4丁二醇为主要原料,经熔融酯交换合成介晶基元双-对羟基苯甲酸丁二醇酯(BBHB);

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  • 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.

    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。

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  • 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.

    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。

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