采用两种酯化方法制备了丙烯酸十八酯,研究了影响酯化反应的因素。
The factors effecting the melt direct esterification and normal solvent direct esterification of acrylic acid and octadecyl alcohol were investigated.
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.
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.
对盐酸水解—硫酸钡重量法测定硫酸酯化多糖(SPS)中硫酸基含量进行了方法学考察。
The determination of sulfate radical content in sulfated polysaccharides(SPS) by gravimetric analysis of hydrochloric acid hydrolysis and barium sulfate precipation was investigated methodologically.
方法:四种药物通过酯化、酰胺反应由不同的连接子合成酰胺类和混合键类互联体前药。
Methods: Amide and mix-type bonds compounds were synthesized by conjugated the amino groups and acid groups with hydroxyl or acid links.
就含氟内酯化合物合成方法的研究进展进行了综述。
This article reviews the progress in the synthetic methods of fluorine-containing lactones.
方法用石油醚提取脂肪油并甲酯化,采用毛细管气相色谱-质谱联用技术对其进行分析鉴定。
Method The fatty oil from Carum carvi L was extracted by ligarine petrum and analyzed by capillary gas chromatograph mass spectrometer(GC-MS) method.
就含氟内酯化合物合成方法的研究进展进行了综述。
This article reviews the progress in the study on synthetic method of fluorine-containing lactones.
本文探讨了一缩二乙醇油酸双酯酯化反应的合成原理及其工艺操作方法。
The synthetic principle and the process method of diglycol dioleate were discussed in this paper.
本文用概率统计和动力学方法,推导了多元醇的丙烯酸酯酯化度分布函数及其计算公式。
By using probability statistics and dynamics, this paper derived the esterification degree distribution function and its calculation formula for polyol-acrylate reaction.
羧酸酯化合物,液晶化合物,液晶组合物液晶元件和光调制方法。
Carboxylic acid ester compound, liquid crystal compound, liquid crystal composition, liquid crystal element and light modulation method.
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.
HA具有羟基、羧基和乙酰胺基等官能团,可通过交联、酯化、接枝、分子修饰和复合等方法进行改性。
Ha has functional groups such as hydroxyl, carboxyl and N-acetyl, therefore, it can be modified by cross-linking, esterification, graft, molecule modification and composition.
研究在氮气保护下采用非外加相转移催化剂经酯化和磺化合成磺基琥珀酸双十八油酯磺酸钠的新方法。
A new method to synthesize sodium dioleyl sulfosuccinate by esterification and sulfonation without adding any extra phase catalyst in nitrogen atmosphere was developed.
同时,摸索出黄浆水中各种酯化因素的最佳参数,黄浆水酯化液在生产中的应用方法等。
Optimal parameters for various factors in yellows'eriflux and methods of use of esterized seriflux in practical production were also explored.
报导了超声酯化反应的研究结果。研究发现,在超声辐射下进行酯化反应。方法简单,条件温和,产率高,是一种值得注意的新方法。
This paper studies ultrasonic esterification, it was found that, esterification with ultrasonic ware has method simplification, condition tempered and yield high, which is a significant way.
研究了以甘油、月桂酸为原料,用硼酸保护羟基进行酯化反应合成甘油单月桂酸酯的新方法。
A new synthetic method glyceryl monolaurate(GML) from glycerin and lauric acid via protected hydroxy groups by boric acid was studied.
以大豆油脚为原料,采用酯化反应和超临界CO2萃取方法,进行了天然ve的提取研究。
Taking the soybean oil dreg as the raw material, using the method of esterification reaction and supercritical CO2 extracting, we carry through the research of extraction of natural VE.
方法以咖啡酸为起始原料,经过酰化、酯化、水解等反应进行合成。
Methods One compound was synthesized by using caffeic acid as raw materials through the reaction of acylation, esterification, hydrolysis, and so on.
分析了pta与eg酯化反应过程中DEG的成因。并对控制DEG含量提出相应的方法。
The article analyses how DEG is produced in esterification process of PTA and EG, and gives a method to control the content of DEG.
采用二次回归旋转正交组合实验设计方法,探讨了魔芋葡甘聚糖凝胶珠的硫酸酯化修饰的最优化工艺条件。
The optimal technical conditions for sulfated modification of konjac glucomannan gel beads were (investigated) by the quadratic regression rotatable orthogonal design.
该方法的优点是:反应速度快,酯化效率高,大大提高了产品纯度。
The synthesis method has the advantages of rapid reaction speed, high esterification efficiency and greatly improving the purity of the product.
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.
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。
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.
方法用索氏提取法对脂肪油进行提取,采用不同甲酯化处理后,采用气相色谱-质谱联用技术分离和鉴定其组分和含量。
MethodsThe fatty acids were extracted by Soxlet extraction, etherified by different methods and its components were analyzed by GC/MS.
使用该方法作为二元醇酯的制备方法,能得到高纯度的二元醇酯化合物。
By using the method as the preparation method of the dibasic alcohol ester, the high-purity dibasic alcohol ester compound can be obtained.
方法:由葡萄糖通过缩合、氧化、去保护、酯化反应制备水杨酸葡萄糖酯。
Methods: Salicylic acid glucose esters were synthesized from glucose by condensation, oxidization, deprotection and esterification.
在酯化反应中,催化剂用量,原料配比,反应时间对酯化反应的可膨胀石墨的制备方法的影响进行了讨论。
In esterification reaction, the influences of catalyst amount, materials ratio, reaction time, prepared method of the expandable graphite on esterification reaction were discussed.
酯化及转酯化法是目前研究最多、最具优势的生物柴油制备方法,根据原料特性选择合适的催化剂是该法成功的重要保证。
Esterification and transesterification are the most common methods of producing biodiesel. It is important to select an appropriate catalyst based on the properties of raw oil.
本发明公开了一种含氮含硫硼酸酯化合物及其制备方法。
The invention discloses a nitrogen-sulfur-containing boric acid ester compound and a method for preparing the same.
应用推荐