The 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
通过4-甲氧基苯甲醛的羰基加成反应合成4-甲氧基-苯基羟基乙酸。
Taking the synthesis of butyl acetate by the catalytic esterification of acetic acid and butanol as a probe reaction, a series of studies on the preparation of the catalyst and its activity was made.
以乙酸和正丁醇催化酯化合成乙酸丁酯为探针反应，对氧化铌负载型催化剂的制备与催化活性进行了一系列研究，得出了优惠工艺条件。
The hydrated ferric sulfate was used as a catalyst for esterification of alcohol with glacial acetic acid and discussed the best condition in reaction of esterification.
报道了以硫酸铁水合物作催化剂合成乙酸酯的研究结果，并讨论了该酯化反应的最佳条件。
The optimal reaction conditions of degrading plant cellulose with acetic and hydrochloric acid were discussed by cross experiments.
采用正交试验法探讨了乙酸、盐酸等稀酸降解植物纤维素的最佳反应条件。
Conclusion: Acetic acid is an important catalyst in the condensation reaction. Schiff bases had antibacterial activity.
结论：乙酸是催化剂，对缩合反应有利，希夫碱化合物具有一定抗菌活性。
The reaction thermodynamics of acetic acid synthesis from methanol was studied.
用热力学的方法研究了甲醇合成乙酸的反应。
The influence of the molar ratio of n-amyl alcohol and acetic acid, the quantity of the catalyst, the reaction time etc on the ester yield was discussed.
探讨了醇酸物质的量比、催化剂用量、反应时间等因素对酯收率的影响。
The characterization of FTIR demonstrates that the acetic acid species is adsorbed in the catalyst surface after reaction, especially the reaction with water.
FTIR表征表明反应后的催化剂表面有乙酸物种生成，尤其是在含水进料方式反应后的催化剂表面尤为明显。
Chemical reaction and hydrodynamic status are very complicated in the reactor of acetic acid through low-pressure methanol carbonylation.
在甲醇低压羰基化制醋酸反应器内，化学反应与流体力学状况非常复杂。
Nujing capsule inhibited the torsion reaction of the mice caused by acetic acid.
女金胶囊能明显抑制醋酸诱发小鼠扭体反应的发生。
In this paper, reaction mechanism, process and technical character are described. Meanwhile, technical progress of carbonylation of methanol to acetic acid via low pressure is also introduced.
阐述了甲醇低压羰基会成醋酸的反应机理、工艺流程和技术特点，同时介绍了甲醇低压羰基合成醋酸的技术进展。
The effects of catalyst treated methods, catalyst quantity, reaction time, acid-alcohol ratio and catalyst length-of-live are studied in batch synthesis of acetic ether.
考察了催化剂处理方式、醇酸比、催化剂用量、反应时间对合成乙酸乙酯的影响及催化剂重复使用的活性。
The extraction of acetic acid by amines is a kind of chemical extraction. There are some connections between reaction equilibrium constant and distribution equilibrium constant.
胺类对乙酸的萃取为化学萃取，反应平衡常数与萃取平衡分配系数有一定联系。
The thermodynamics of ethyl acetate synthesis by the esterification of acetic acid and ethanol was explored in the presence of DABF as catalyst, showing that the reaction is an equilibrium one.
用DABF作为催化剂，研究了乙酸与乙醇反应合成乙酸乙酯反应的热力学，通过热力学计算所得到的反应平衡产率与实验值基本一致。
The influences of reaction conditions and petroleum fractions on the removal of calcium by dilute aqueous acetic acid were investigated using calcium naphthenate as model compound.
用稀醋酸水溶液作为脱钙剂，环烷酸钙作为模型有机钙化合物，研究了反应条件以及原油三组分的存在对脱钙的影响。
The reaction of aryloxy acetic acid with thiosemicarbazide in the presence of dehydrating agent, POCl_3, affords a series of 2amino5aryloxymethyl1,3,4thiadiazoles under microwave irradiation (MWI).
在三氯氧磷作用下，由芳氧基乙酸和氨基硫脲经脱水环合，微波辐射快速合成了一系列2氨基5芳氧亚甲基1，3，4噻二唑类化合物。
The effects of molar ratio of anhydrous ethanol to glacial acetic acid , dosage of catalyst, reaction temperature and reaction time on the esterification ratio and reuse of catalyst were discussed.
探讨了酸醇物质的量的比，催化剂的用量，反应时间和反应温度对酯化率的影响及催化剂的重复使用情况。
A new kind of epoxy resin adduct polyol (EAP) with rigid backbone was synthesized by the reaction of bisphenol - a type epoxy resin with acetic acid and characterized with FTIR and 1h - NMR.
用双酚a型环氧树脂与乙酸反应，合成了具有刚性骨架的环氧树脂加成多元醇(EAP)，并用FTIR与1h - NMR对其进行了表征。
Reaction temperature as major factor on consumption of acetic acid was found by analysis of operation of PTA unit.
通过对PTA(精对苯二甲酸)装置影响醋酸消耗的分析，认为反应温度对酸耗影响最大。
Sulfuric acid and acetic anhydride were used as a cyclizing agent to prepare Ofloxacin intermediate. The reaction could be carried out under moderate conditions and facilitate industrial produce.
用硫酸乙酐混合物作环合剂，制备了氟嗪酸中间体．该方法具有反应条件温和、价格便宜、后处理简单的优点，适用于工业化生产。
The reaction processes of preparing sodium diacetate from acetic acid and sodium carbonate are studied.
本文对乙酸—纯碱法制备双乙酸钠反应过程进行了研究。
The method is based on the catalysis of phenanthroline to the discoloring reaction of bordeaux R oxidized by potassium periodate in the dilute acetic acid solution.
在稀醋酸介质中，痕量邻菲咯啉对高碘酸钾氧化玫瑰桃红R褪色反应有明显的催化作用，据此建立了测定邻菲咯啉的催化动力学光度法。
In this paper studying on the polymerization reaction in silicic acid solution is determined and the gel time of poly silicic acid is obtained when acetic acid compound exist.
摘要在前人研究工作的基础上，应用乙酸进行硅酸聚合胶凝的实验研究，实验结果表明，当硅酸溶液中有乙酸化合物时，硅酸聚合胶凝的时间将延长。
Acetic acid, which is distilled from the reaction mixture as it forms can be recovered.
可以回收在其形成时即从反应混合物中蒸馏出去的乙酸。
Hartshorn(NH_(4)OH) was used as a new catalyst instead of acetic acid in the saponification reaction of base zinc salt of dioctyl thiophosphate (T203).
选用氨水溶液代替醋酸作为新型催化剂用于硫磷双辛基碱性锌盐（T203）的皂化反应。
The influences of reaction temperature, reaction time, ratios of MSA and ratios of acetic acid have been studied.
研究了反应温度、催化剂用量、反应物比例对反应数率常数的影响。
The effects of catalyst amount, reaction time, molar ratio of sec-butanol and acetic acid, and amount of deaquation reagent on the reaction were studied.
考查了催化剂用量、反应时间、醇酸物质的量比及带水剂用量对乙酸酯化率的影响。
The plant hydrolyzed-enzyme catalyses naphthyl acetate hydrolyzed reaction, which produces acetic acid.
该方法基本原理是：植物水解酶促进乙酸萘酯分解生成乙酸。
The formation of methanol is retrained to a large extent and the formation of ethanol and acetic acid are improved to a certain degree in the first step of the reaction with water.
反应第一步通入水在很大程度上抑制了甲醇的生成，在一定程度上促进了乙醇和乙酸的产生。
Through the experiment on synthesis of 2,4-dihydroxyphenyl acetic acid, the influences of reaction time, the molar rate of raw materials and hydrolysis on the yield of the product were studied.
通过2，4-二羟基苯乙酸的合成考察了反应时间、物料配比和水解过程对反应的影响。
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