A Experimental Research for Separating an Azeotrope of Methyl Acetate and Methanol by Extractive Distillation

Molecular Design of Extractant for Extractive Distillation of 1-Butanol-Butyl Acetate Azeotrope System

丁醇-醋酸丁酯共沸物系萃取精馏萃取剂的分子设计

Study on Separation of Azeotrope

共沸物系分离的研究

It forms an azeotrope with water at atmospheric condition, which cannot be separated by conventional distillation.

常压下与水形成共沸物，用普通精馏无法得到高纯度的异丙醇产品。

The Preparation of PVA Vapor Permeation Membrane Separating Ethanol-water Closed Azeotrope

分离乙醇水近共沸物PVA蒸汽渗透膜的制备

Extractive distillation is mainly used to separate azeotrope and components of narrow boiling range.

萃取精馏主要用于分离共沸物和近沸程物系。

The Application of Azeotrope as Cleaning Agent

共沸混合物在清洗中的应用

Basic Research on Application of Ionic Liquids for Extractive Distillation of Aqueous Azeotrope Mixtures

离子液体应用于含水共沸体系萃取精馏的基础研究

Study on extractive distillation of dimethyl carbonate from its azeotrope with methanol using optimization

萃取精馏分离甲醇与碳酸二甲酯共沸物的最优化研究

Computerized prediction of properties of binary azeotrope systems

二元恒沸物系若干特征的计算机预报

Thermodynamic Investigation of the Azeotrope of Water and Ethanol

水-乙醇二元体系共沸混合物的热力学研究

The Research on the Extractive Distillation with Salt in Triple Azeotrope System

三元共沸体系加盐萃取精馏的工艺研究

Basic Study on Separation of Azeotrope by Active Packing

利用活性填料分离共沸物系的基础研究

The tunneling characteristics of the semiconductor quantum well through a double-barrier potential model is studied.

用双势垒模型研究了半导体异质结量子阱的隧穿特性.

2-( 2 ′, 4 ′-dichlorophenoxy) ethyl aryl sulfonates studies on organoarsenic compounds& ⅷ. the reaction of arsonium ylides with aryl azides

芳香磺酸2-（2'，4'-二氯代苯氧）乙酯有机胂化合物的研究&Ⅷ.胂叶立德与叠氮化合物的反应

And 1, 3-dipolar cycloaddition reaction of the azides with phenylacetylene was studied. The corresponding compounds ( azides and 1,2,3-triazoles) were characterized with NMR, FT-IR and elementary analysis.

合成的叠氮化合物与苯乙炔经1,3偶极环加成反应得到了相应的取代苄基1,2,3三唑类化合物，反应条件温和。

Two important steps of slow thermal decomposition of azides have been studied using the method of statistical mechanics. Relations of the transform-ratio(α) of reactional equilibrium to temperature and pressure are formalized and the reaction mechanism is briefly discussed.

用统计力学方法对无机叠氮化物慢速热分解中的两步重要反应进行了研究，求得了反应平衡转化率α随温度T和压力P变化的表达式，并对反应机理作了分析和探讨。

The difference for electronegativity of N_3 in molecular-type and ionic-type azides may be due to the different bonding properties, which is found from the detail research about LMOs.

将计算所得正则离域分子轨道进行定域化处理，发现产生这种电负性差异的主要原因是在上述两类叠氮化物中N3的成键状况不同，本文对此进行了较为细致的分析。

This Paper focus on recent synthetic development of aza-Wittig reaction in nitrogen heterocyclic and explains some mechanism of the reaction of carbonyl compounds with organic azides and tertiary phosphines.

本文阐述了羰基通过叠氮化物和三价膦形成的亚胺基膦的作用，以氮杂wittig反应的方式，合成含氮杂环化合物的进展。

High-pressure induced 1,3-dipolar cycloadditions of azides with both electron-deficient and electron-rich olefins are studied.

在B3LYP/6-31G水平上对高压诱导的叠氮化合物与缺电子烯烃以及富电子烯烃间的1,3-偶极环加成反应进行了研究。

In this paper, many organic azides were synthesized on the basis of existing literature. The influences of reaction conditions such as materials ratio, temperature, catalyst, time were optimized.

本论文在分析研究现有文献基础上，合成了一系列有机叠氮化合物，考察了物料配比、反应温度、催化剂、反应时间等因素对反应的影响，对合成工艺进行了优化。