通过减压精馏熔融结晶耦合技术研究提高人造麝香（DDHI）含量的原理和工艺流程。
The combined vacuum distillation and melt crystallization technology was used to purify DDHI from artificial musk.
空分设备有效能损失主要存在流体的压缩与膨胀、热交换、精馏、节流减压。
The available energy loss of ASU lies in the gas compression , heat exchanging, distillation, and throttling depressurization process.
通过苯酚和碳酸二甲酯的酯交换反应合成了碳酸甲苯酯，采用减压精馏对其进行了分离提纯，得到纯度>99.5%的碳酸甲苯酯；
Methyl phenyl carbonate(MPC) was prepared by transesterification of dimethyl carbonate(DMC) with phenol and the product with a purity exceeding 99.5% was obtained by vacuum distillation.
利用酯化反应基本原理，以丙三醇和醋酸在催化剂的作用下进行酯化反应，经脱水、减压精馏得甘油三醋酸酯产品。
Using glycerine and acetic acid as raw materials and in the presence of catalyst, glycerin triacetate was synthesized through esterification, dehydration and underpressrue distillation.
空分设备有效能损失主要存在流体的压缩与膨胀、热交换、精馏及节流减压等。
Exergy loss in an air separation unit mainly derives from the compression and expansion processes of fluid, heat exchange, rectification and throttling.
反应产物经减压精馏、碱洗、水洗、干燥等精制处理，得到了纯度较高的M PC标准品。
The high-purity MPC standard sample was obtained by reduced pressure distillation and the removal of minor phenol with dilute sodium hydroxide solution.
以藜芦醛为主要原料、异丙醇为溶剂，经硼氢化钠还原、溶剂萃取、减压精馏得到产物藜芦醇。
Veratryl alcohol was synthesized through the reduction of sodium borohydride from veratraldehyde with isopropanol as solvent, followed by solvent extraction and distillation under reduced pressure.
该模型严格地模拟了减压精馏塔的动态行为，模拟了稳态下进料发生变化时减压精馏塔中各塔板上液相浓度变化的曲线。
This model austerely simulating dynamic action of vacuum distillation unit, and the dynamic curve of vacuum's sidetrack from feed-in to static state.
采用减压间歇精馏方法，对从天然产物山苍子油中提取柠檬醛产品的精制过程进行了研究。
The refining process of citral product from natural litsea cubeba was studied by means of vacuum batch distillation.
一种三氯乙烯减压精馏装置，由加热系统、精馏塔、冷却器和接受容器组成。
The utility model relates to a pressure reducing rectifying apparatus for trichloroethylene, composed of a heating system, a rectifying tower, a cooler and a receiving container, etc.
通过静态混合器对萃取过程的强化及减压精馏回收萃取剂实验，验证了三脂肪胺-煤油-正癸醇体系萃取低浓醋酸的工业可行性。
The possibility of applying this solvent in industry was tested through the experiments of mass transfer enforced by static mixing equipment a…
通过静态混合器对萃取过程的强化及减压精馏回收萃取剂实验，验证了三脂肪胺-煤油-正癸醇体系萃取低浓醋酸的工业可行性。
The possibility of applying this solvent in industry was tested through the experiments of mass transfer enforced by static mixing equipment a…
应用推荐