查询词典 esterification

The paper introduced the property of the niobic acid and its usage in esterification, hydration, dehydration, et al.

介绍了铌酸(Nb2O·5nH2O)的性质及其在酯化、水合、脱水等反应中的应用。

Niobic acid as a solid catalyst can be directly applied in the hydrolysis, esterification, condensation and alkylation reaction etc.

铌酸可直接作为固体催化剂，应用于水解、酯化、缩合、烷基化等反应中；铌酸也作为载体负载金属，应用于F-T合成、氧化反应和加氢等反应中；含铌化合物也可作为负载型催化剂，负载到不同类型的载体上；含铌化合物也作为助剂或光催化剂，广泛地应用于催化多种化学反应。

Niobic acid; catalytic synthesis; di-2-ethylhexyl phthalate; di-n-octyl phthalate; di-2-ethylhexylmaleate; di-n-octyl maleate; cyclohexene; modification of catalyst; dynamics of esterification

工程科技I，化学，有机化学铌酸；催化合成：邻苯二甲酸二辛酷；邻苯二甲酸二异辛酯；顺丁烯二酸二辛酯：顺丁烯二酸二异辛酯：环己烯；改性；动力学

Dioctyl sebacate ; Nonacid catalyst ; Plasticizer ; Esterification.

癸二酸二辛酯；增塑剂；酯化；非酸性催化剂

Esterification of sorbitan and oleic acid can be carried out by lipase CAL in nonaqueous phase under mild conditions.

失水山梨醇单油酸酯作为一种重要的非离子表面活性剂，可利用脂肪酶在非水相中合成[1] 。

The use of perfluorous nonene solvent allowed the formation of a fluorous biphase system with the ester products thereby driving the esterification equilibrium to move rightly.

在不移走生成物的条件下，酯与全氟壬烯能形成氟两相体系而脱离酯化可逆反应体系，促进反应平衡右移，使收率提高10%～47%，氟溶剂通过冷却和简单的相分离，就可回收并直接套用。

Sorbitan monooleate(Span-80) made from esterification of sorbitan and oleic acid, is a kind of typical nonion surfactant that has been widely used.

失水山梨醇单油酸酯(Span-80)是一种典型的非离子表面活性剂，由山梨醇失水并与油酸发生酯化反应生成。

This paper builtup esterification model, pre-polycondensation model, polycondensationmodel, and successfully built up monitoringon-line system of some key quality tar gets as well as operation systemmodel according to the polycondensation technique of NOY company.

本文在软测量技术的基础上，建立了酯化反应控制模型、预缩聚反应控制模型、终缩聚反应控制模型，并成功开发出在线控制系统，对生产过程中的关键质量指标如粘度、二甘醇、端羧基进行在线控制，控制精度达到小于2.5％。

The experiment results showed that the optimum reaction condition were as follow: the molar ratio of acrylic acid to octadecyl alcohol was 1.2:1, the amounts of solid super acid and hydroquinonone were 6.0% and 0.8% respectively, reaction temperature and time were 120℃ and 3h. In this condition, the percentage of esterification of octadecyl acrylate was 97%.

由实验得出的最佳合成条件是：丙烯酸与十八醇的摩尔比为1.2：1，固体超强酸及对苯二酚的质量分数分别为6%，0.8%，反应温度为120℃，反应时间为3 h，在此反应条件下，酯的产率可达97%。

Octadecyl acrylate was synthesized by melt esterification from octadecyl alcohol and acrylic acid using solid super acid as catalyst.

以丙烯酸和十八碳醇为原料，采用固体超强酸SO(上标 2-下标 4)-/TiO2为催化剂及直接酯化法制备丙烯酸十八酯。

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。