ester exchange
英 [ˈestə(r) ɪksˈtʃeɪndʒ]
美 [ˈestər ɪksˈtʃeɪndʒ]
酯交换
双语例句
- The manufacture technology of DMC includes phosgene method, ester exchange method, methanol oxidation carbonyl method and CO2-CH3OH direct synthesis method.
生产方法有光气法、酯交换法、甲醇氧化羰基法和二氧化碳-甲醇直接合成法。 - The ester exchange degree and degree of acyl migration were proposed to evaluate the effects on the reaction process.
利用酯交换程度和酰基位移程度来评价各反应影响因素对反应工艺的影响。 - The production, ester exchange technology, catalyst for ester exchange reaction and application of biodiesel at home and abroad were introduced in this paper;
对国内外生物柴油的生产方法、酯交换工艺、酯交换反应催化剂及生产应用状况作了论述。 - Biodiesel oil is prepared from soya bean oil and methanol, the ester exchange reaction is conducted under ultrasonic conditions with alkali as the catalyst, and the effect is discussed of ultrasonic wave on the reaction.
摘要以大豆油和甲醇为原料制备生物柴油，酯交换反应在超声波条件下以碱作为催化剂进行，讨论了超声波对反应的影响。 - This paper reviews the production technologies, the advantages of DMC production by ester exchange and market situation at home and abroad.
本文阐述了碳酸二甲酯的生产方法，酯交换法生产DMC工艺的优越性以及国内外市场状况。 - Thermal degradation kinetics of oxygen absorption and ester exchange stages were studied in detail.
对第1阶段吸氧阶段和第2阶段酯交换阶段的降解机理和动力学方程进行了详细的研究。 - Mechanical properties of the blending system decreased with the addition of ester exchange inhibitor, so that proper ester exchange reaction was helpful to increase the mechanical properties of blending system.
酯交换抑制剂的加入，降低了共混体系的力学性能，适当的酯交换反应有利于共混体系力学性能的提高； - The results of the study show that, when compared with the reaction intensified with mechanical agitation, low-frequency ultrasonic wave can greatly promote the ester exchange reaction and shorten the reaction time.
研究结果表明，与机械搅拌增强反应比较，低频超声波可以大大强化酯交换反应过程，缩短反应时间。 - With corn oil as primary raw material, alkylolamide sulfosuccinate was prepared by ester exchange, amidation, esterification and sulfonation.
制备烷醇酰胺磺基琥珀酸盐MS，以玉米油为主要原料，经酯交换、酰胺化、酯化、磺化反应而得。 - 18 esters of starch-Azo dyes were prepared by the reaction of the ester exchange in emulsion solution.
本部分论文以自制偶氮染料羧酸酯为原料，利用酯交换反应，分别制得18种偶氮染料淀粉酯。 - Firstly, synthesized ethyl ferulate; secondly, ethyl ferulate reacted with glucose to create glucose ferulic acid esters by ester exchange.
该方法分为两步：第一步为合成阿魏酸乙酯，第二步用合成的阿魏酸乙酯与葡萄糖进行酯交换生成阿魏酸葡糖酯。 - Dimethylaminoethyl methacrylate has been prepared by ester exchange reaction methylmethacrylate with dimethylaminoethanol in presence of dibutyltin oxide.
介绍了以二丁基氧化锡为催化剂，由甲基丙烯酸甲酯与二甲氨基乙醇经酯交换反应制备甲基丙烯酸二甲氨基乙酯的新方法，产率902%，纯度973%。 - Reaction mechanism, production process and technical features of producing methyl& carbonate with phosgene process, ester exchange and oxidation and carbonylation of methanol process are presented. Technical level and scientific research progress in China are reported and made prospect for the application in future.
介绍了光气法、脂交换法和甲醇氧化碳基化法生产碳酸二甲酯的反应机理、生产工艺和技术特点，报导了国内的技术水平和科研进展，并对应用前景进行了展望。 - In this paper, the relative rate of the ester exchange reaction of the phosphoryl histidine ( N-DIPP-His) and other phosphoamino acids with primary alcohols was compared by 31P NMR spectra. It showed that TV-DIPP-His was the fastest one.
本文利用~（31）pNMR，对比研究了磷酰化组氨酸与其它磷酰化氨基酸和一级醇的磷上酯交换的反应速度，实验表明磷酰化组氨酸的反应速度最快。 - In addition, the problem of ester exchange of rosin esters as the function of TMAH and the condition for their determination were proposed.
本文还提出了有关中性松香施胶剂中松香酯成分由于TMAH作用而产生的酯交换问题及其解决办法。 - Ester exchange reaction of o-chloromethyl chloromethyl benzoate
邻氯甲基苯甲酸氯甲酯的酯交换 - It mainly discussed how to improve the percent conversion of propylene carbonate in ester exchange method.
重点阐述了酯交换法生产中如何提高碳酸丙烯酯（PC）的转化率。 - Preparation of titanates catalysts and their catalytic behavoirs to transesterification(ⅰ): ester exchange reaction of ethyl benzoate with isoamylol
钛酸酯催化剂的制备及其对酯交换催化性能研究（Ⅰ）&苯甲酸乙酯与异戊醇的酯交换反应 - The Mo loading had an obvious effect on the catalytic performance of ester exchange reaction.
Mo负载量对DMO和苯酚酯交换反应的性能有明显影响。 - This process relates to a sucrose esters prepared by the direct ester exchange reaction of sucrose with fat oil as a raw material and at present of solvent N, Ndimethylformamide and base catalyst.
以蔗糖和猪油为原料，以N，N&二甲基甲酰胺为溶剂，在碱催化剂作用下，直接进行酯交换反应合成了蔗糖酯。 - Using the crude DMT that is extracted from waste residue R& 1 of polyester, at 140~ 210 ℃, under the presence of catalyst, the new type plasticizer M-DOTP is synthesized by ester exchange process.
利用从聚酯废渣R&1中提取的粗DMT，在140～120℃，催化剂存在的条件下，用酯交换法合成了新型增塑剂M-DOTP。 - 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.
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。 - By biocatalysis lipases such as EC 3.1.1.3 catalyze the hydrolysis reactions, esterification reactions and ester exchange reactions, including catalyzing hydroxyl acids to lactones.
生物催化法是利用脂肪酶（如EC3113）催化脂肪的水解反应、酯化反应和酯交换反应，包括催化羟基脂肪酸形成内酯。 - The by-product GC and the ester exchange reagent have a little effect on combustion performances of the biodiesel fuel.
副产物甘油一碳酸酯、酯交换试剂DMC存在对混合燃料燃烧性能的影响较小。 - Catalyst was applied to ester exchange reaction.
将其应用于酯交换反应。 - This article is on the basis of previous work in my laboratory and improves low temperature fluidity through the choice of oil raw materials and ester exchange reagents for biodiesel.
本文即是在实验室前期工作的基础上，通过原料油以及酯交换试剂的选择来对生物柴油的低温流动性进行改善，并对改善后的生物柴油进行燃烧性能的测试。 - The ester exchange was belonging to pseudo-first-order reaction at pre polycondensation stage.
预缩聚阶段的酯交换属于二级反应。 - There are two PTT preparation methods, the ester exchange and direct esterification.
通常PTT有两种制备方法：酯交换法与直接酯化法。 - Biodiesel is an mixture alkyl esters, which is prepared through the ester exchange or esterification reaction of vegetable oils, animal fatty or waste fatty with short chain alcohol.
生物柴油是指利用植物油、动物脂肪或废油脂等与短链醇进行酯交换或酯化反应而形成的脂肪酸烷基酯混和物。