查询词典 esterification

Overlap bands were separated,main bands of cellulose,lignin and wood meal weresigned,and three parameters(esterification degree,carbonyl ratio and crosslinkage degree)ofesterification reaction were defined in FTIR spectra.

分离重叠谱峰，归属纤维素、木质素和木粉主要FTIR谱峰，确立了三个交联酯化反应参数：酯化度；羰基比，和交联度。

Wuliangye series of wine with a unique "bag song" agent for the saccharification and fermentation, fermentation temperature, the formation of different strains, enzymes, beneficial to esterification, flavor and aroma, and the accumulation of a product's unique style; 5 food formulations, the aroma of different food and wine producing features together form a more rich, strong and comprehensive style features in the liquor came out top.

五粮液系列酒以独特的&包包曲&为糖化发酵剂，发酵的不同温度，形成不同的菌系、酶系，有利于酯化、生香和香味物质的累积，构成产品的独特风格；五粮配方，将不同粮食的香气和产酒的特点融合在一起形成了更丰富、浓厚、全面的风格特点，在浓香型白酒中独占鳌头。

Open the vacuum pump when all the equipment are normal, vacuum 0.8-0.9MPa for Etherification kettle 1, and open the inlet valve (filter and inlet valve of Esterification 1), then the vacuum will inhale the quantitative material into reaction kettle 1 by passing the filter, and close the inlet valve of raw material after it.

在所有设备正常的情况下打开真空泵，将1号酯化釜抽真空至0.8-0.9MPa，然后打开进料阀门，（过滤器及1号酯化釜的进料阀门）真空将定量的物料经过原料过滤器吸入1号反应釜。进料完毕后关闭原料进料阀门。

Technology of sulfuric acid catalyzed ethyl esterification of high acid value tuna oil was studied.

以浓硫酸为催化剂，对高酸值金枪鱼油进行了乙醇酯化工艺的研究。

The results of FT-IR 1H-NMR indicate the structure of polyester, and the 13C-NMR analysis of three quaternary carbon showed the existing of hyperbranched struscture, MALDI-TOF MS showed the hyperbranched polyester structure, the degree of branching of the polyesters determined by 13C-NMR being 0.408. The esterification reaction kinetics followed a second-order equation and the reaction rate was controled by the concemtration of carboxyl group and hydroxyl group,-d/dt=K.

以IR、1H-NMR证实了聚酯结构的存在，13C-NMR谱图上3种季碳的特征峰有力证实了超支化分子结构的存在，MALDI-TOF MS证明了超支化聚酯的成功合成，并计算超支化聚酯的支化度为0.408；探讨并建立了超支化聚酯的缩聚反应动力学方程－d/dt=K，该缩聚反应属于二级反应，反应速率由羟基浓度和羟基浓度共同决定。

High performance rosin esters were produced by esterification reaction of pentaerythritol and toll oil rosin which was purified by reduced pressure distillation .

使用普通塔尔油松香和经过减压蒸馏纯化的精制塔尔油松香为原料，适当加入复合添加剂，通过酯化反应制得优质塔尔油松香改性树脂。

By analyzing the structure of Gen, refering to the strcture of NO-NSAIDs which has the function to release NO slowly, we got a target compound by esterification and nitration reaction. The structure of this new compound was confirmed by nuclear magnetic resonance, infrared spectrum and mass spectrometry.

研究方法 1。 NO-G的结构设计、合成及鉴定分析Gen的结构，参照NO-NSAIDs的结构设计，采用化学合成的方法经酯化反应和硝基化反应得到目标化合物，通过核磁，红外和质谱分析对得到的化合物进行结构确证。

Primarily study on preparation for EVA hot melt adhesive with disproportionated rosin of esterification modified as tackifier ;2. Development and Applications of Rubber Tackifier TKO Series Products;3. Several tackifier s and molding methods used in fiber preform preparation technology were analyzed and summarized, and the development trend of tackified fiber preform preparation was prospected.

总结了20世纪90年代以来关于复合材料液体模塑成型技术中纤维预成型体制备技术的相关文献报道，指出LCM用纤维预成型体应满足的工艺性要求，且对当前国内外纤维预成型体的成型方法及其制备技术中应用的几种增粘剂进行了分析和概述，并对纤维预成型体制备技术的发展方向进行了展望。

Sichuan rung oil was used to prepare the bio-diesel. In this study, the conditions of trans-esterification reaction were optimized.

以四川桐油为原料，研究了生产生物柴油过程中的酯交换反应条件的影响。

Thermal behavior of RSRF was not affected by ultrasonic treatment, but it remarkably changed in the esterified RSRF. The Differential Scanning Calorimeters curves revealed the maximal thermal decomposition peak of cellulose and lignin in RSRF were disappeared, which reflected characters of RSRF were modified through esterification.

差示扫描量热法研究结果表明，超声波处理对RSRF的热性能没有影响，但酯化改性使RSRF的纤维素与木质素最大分解峰消失，主要反映为酯的性质，且热稳定性增强。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。