分析了不饱和羧酸酯化反应的机理。
The esterification mechanism of unsaturated carboxylic acid was analyzed.
酯化酶生产和应用技术得到不断改进。
The production and the application of esterifying enzyme get improved continuously.
本发明涉及内酯化合物、合成方法及用途。
The present invention relates to lactone compound, synthesis method and application.
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.
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.
在此条件下脂肪酸甲酯化率达到98%以上。
The esterification rate is over 98% under the optimized conditions.
氯化铁能够代替硫酸作为酯化作用的催化剂。
Ferric chloride can be ased as catalyst for the esterification instead of Sulphuric acid.
讨论了反应温度、催化剂对酯化过程的影响。
The effects of reaction temperature and catalyst on esterification has been discussed.
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.
化学方法包括酸洗法、皂化法、酰化法和酯化法等。
The chemical method include treating with sulfuric acid, saponification, acylation, esterification, etc.
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.
方法以肉桂醇为原料，经酯化、氨化和缩合-环合而得。
METHODS Cilnidipine was synthesized from cinnamyl alcohol by esterification, feminization and condensation - cyclization.
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.
研究了在催化剂存在下低酯化度果胶与甲醇进行的甲酯化反应。
The methyl- esterification reaction of low -methoxyl pectin with methylalcohol by the presence of some catalysts was observed .
酯化处理所产生的接触角增大作用要比接枝共聚所产生的作用大；
The effect of the esterification on contact angle is obviously bigger than that of graft copolymerization.
依据实验结果，提出了固体酸催化剂作用下的液相酯化反应机理。
Based on the experimental results the mechanism of liquid-phase esterification catalyzed by solid acid is suggested.
通过正交实验考察了反应时间、反应温度对聚乙烯醇酯化程度的影响。
The influence of reaction temperature and reaction time on degree of esterification were investigated.
本文研究了四种酸催化剂用于工业混醇与乙酸酯化合成混合酯的催化性能。
The application of four acids as catalyst in the synthesis of mixing ester from mixing alcohol was studied.
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.
采用缩合、季碱化及酯化反应研制了一种“178”碱性锌酸盐镀锌光亮剂。
A called "178" brightening agent for alkaline zincate bath was prepared by condensation, quaternization.
讨论了原料配比、酯化时间、催化剂用量及其重复使用次数对酯化率的影响。
The effect of raw material ratio, esterification time, the quantity of the catalyst and reuse of catalyst on esterification rate was discussed.
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.
研究了环酐与苯胺和苯酚的酰胺化及酯化反应，优化了酰胺化及酯化反应条件。
The amidation and esterification of different cyclic anhydrides with aniline and phenol gave different major products, and the routes were optimized.
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.
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.
考察了醇酸比，催化剂酸度，催化剂用量，反应时间，反应温度对酯化产率的影响。
The effect of acid-alcohol ratio, acidity of catalyst, amount of catalyst, reaction time, and reaction temperature were investigated.
松香甘油酯为松香或浅色松香经甘油酯化而成；应用于压敏胶、粘合剂、橡胶等行业。
Gum rosin glyceride are made from gum rosin or refined gum rosin through esterification with glycerol; used in pressure sensitive adhesives adhesives rubber products etc.
松香甘油酯为松香或浅色松香经甘油酯化而成；应用于压敏胶、粘合剂、橡胶等行业。
Gum rosin glyceride are made from gum rosin or refined gum rosin through esterification with glycerol; used in pressure sensitive adhesives adhesives rubber products etc.
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