• 探讨了酯化的动力学,并建立了动力学方程。

    The kinetics of esterification is discussed and kinetic equation set up.

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  • 萃取工艺的进料为甲酯化的大豆油脱臭馏出物。

    The raw material for extraction is ME-SODD, prepared from soybean oil deodorizer distillation through the methyl esterification.

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  • 酯化的方法包括:酰氯法、羧酸法、酯交换法。

    The synthetic methods of ester include acyl chloride reaction, carboxylic acid reaction, and inter-esterification reaction.

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  • 对苯甲酸甲酯化的合成工艺条件及抑菌效果进行了研究。

    The esterification condition of Benzoic acid and antimicrobial activity of methyl benzoate were studied.

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  • 结果表明:维生素C能够代替硫酸作为乳酸酯化的催化剂。

    The result showed that vitamin C could be used as catalyst for the esterification of lactic acid instead of sulphuric acid.

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  • 以甲酯化的大豆油脱臭馏出物为原料,从中分离提纯天然生育酚。

    The purification of natural tocopherols from methyl esterified soybean oil deodorizer distillate was discussed.

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  • 考察了反应原料配比、催化剂用量、反应时间等因素对酯化的影响。

    The effect of the amount of the catalyst used. on yield of ester ratio of feedstocks and reaction time was investigated.

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  • 试验表明HZ型固体酸是饱和直链羧酸和伯醇直接酯化的特效催化剂。

    Experiment results indicated that HZ-type solid acids were ideal catalysts for direct esterification of straight chain carboxylic acids and primary alcohols.

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  • 应用酯化反应动力学,确定了连续酯化的流程及操作条件,苯酐的转化率达到99.8%以上。

    Based on reaction kinetics, the process flow diagram of continuous esterification and reaction conditions were set. The conversion of phthalic anhydride was over 99.8%.

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  • 酯化是一经典的有机合成反应,随着肽合成的进展,在此领域已做了大量的研究工作。

    Esterification is a classical organic synthetic reaction, with the development of peptide synthesis, much research work has been done in this field.

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  • 本文介绍了羧酸酯化反应催化剂的研究进展。

    The paper introduces the catalyst research advances in esterification reaction of carboxylic acid.

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  • 本文主要对玉米芯木聚糖的提取,水不溶性木聚糖的硫酸酯化条件,酯化衍生物的抗凝血活性及抗凝血机制等进行了研究。

    Theisolation of corn cob xylan the sulfated reaction condition of water insoluble xylan the anticoagulant activity of xylan sulfate and the anticoagulant mechanism werestudied in this paper.

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  • 介绍消光剂加入位置由浆料釜改为第二酯化釜的情况。

    The delustrant adding position was moved from slurry autoclave to second esterification autoclave.

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  • 探讨了丙烯酸与十四醇摩尔比,催化剂和阻聚剂的用量、反应温度及反应时间对酯化反应的影响。

    The influence of acrylic acid and tetradecyl alcohol, amount of catalyst and inhibitor, reaction temperature, reaction time were investigated.

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  • 同时通过红外光谱、可见吸收光谱及溶解性对黑米色素的酯化进行了初步探讨。

    At the same time the esterification of black rice pigment was analysed by infrared spectrum, visible spectrum and solubility.

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  • 介绍了聚乙烯醇(PVA)与马来酸(MA)酯化交联膜的制备及性能表征。

    The preparation and characterization of PVA MA membranes by crosslink esterification are described.

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  • 但他指出,根据研究结果来看,在相酯化脂肪成为新的食物标准之前,还需要进行更多的试验。

    The current findings, he said, suggest that more research is needed before the fats become the new standard.

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  • 介绍了沸石分子筛固体酸和固体超强酸的结构特征及其在酯化反应体系中的应用。

    The structural character of zeolite solid acid and zeolite solid-Superstrong acid and their application in esterification reaction systems are presented.

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  • 分析了不饱和羧酸酯化反应的机理。

    The esterification mechanism of unsaturated carboxylic acid was analyzed.

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  • 考察了反应条件对酯化反应的影响和树脂的催化稳定性。

    The conditions of esterification reaction and the catalytic stability of the resin were investigated.

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  • 硫酸氢钠能够代替硫酸作为酯化作用的催化剂。

    Sodium bisulfate can be used as a catalyst for esterification instead of sulphuric acid.

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  • 重点讨论了催化剂的活化温度、醇酸配料比、吸水剂用量、催化剂加入量等因素对酯化反应的影响。

    The influences of calcination temperature of catalyst, ratio of methanol to oleic acid, quantities of water absorbent and catalyst on esterification performance were emphatically studied.

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  • 文中讨论了影响酯化反应的外部条件,同时对制约水杨酸异辛酯酯化率的内在因素也作了相应的解释。

    It not only describes the extraneous factors influencing the esterification, but also explains the internal reasons which restrict the ester value of iso-octyl salicylate.

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  • 文中讨论了影响酯化反应的外部条件,同时对制约水杨酸异辛酯酯化率的内在因素也作了相应的解释。

    It not only describes the extraneous factors influencing the esterification, but also explains the internal reasons which restrict the ester value of iso-octyl salicylate.

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