azeotropic

In the reaction of sulfonation, the azeotropic water removing, sulfuric acid was used as sulfonating agent.

在磺化反应中, 采用共沸除水硫酸磺化法.

A technology Integrating azeotropic reaction distillation and a packed column having more surface area are presented herein.

采用将反应和共沸精馏结合为一体的工艺和具有大比表面积的填料塔，由氢氧化钾制取叔丁醇钾。

Extractive distillation is an important and useful technique for separating close boiling and azeotropic liquid mixtures.

萃取精馏是分离沸点相近或具有恒沸组成混合物的一种重要方法.

Tissue Free Water ( TFW) of pine needles is separated out through azeotropic distillation of pine needles and toluene, Recovery ratio of TFW is90%.

本文用生物样品与有机溶剂共沸蒸馏分离法对秦山核电厂附近秦山上松针中组织自由水氚进行测量。

Virtually all liquids, when mixed and heated, will display azeotropic behaviour.

实际上所有液体混合并受热时, 都表现出恒沸物的特性.

Synthesis of N-phenyl Maleimide by Decompressed Azeotropic Method

减压共沸法合成N-苯基马来酰亚胺

Study on Azeotropic Distillation of Solvent Dehydration in Production of Terephthalic Acid

对苯二甲酸生产中溶剂脱水共沸精馏技术研究

The condensation temperature and evaporation temperature are variational in condensator and evaporator using R22/ R142b non-azeotropic mixture refrigerant.

R22/R142b非共沸混合制冷剂在冷凝器和蒸发器中其冷凝温度和蒸发温度是变化的。

Some researches have been done on plate evaporator with pure refrigerant or near azeotropic mixture, but not with non-azeotropic mixture.

目前，针对单工质或近共沸工质的板式蒸发器研究已有开展，但对于非共沸工质的尚未见报道；

Design of composition adjustable device for non-Azeotropic ternary refrigerant mixture

三元非共沸混合制冷剂组成调节装置的设计研究

Therefore, butoxy in n_butanol can be adsorbed chemically on the surfaces of the tourmaline particles in the process of azeotropic distillation, which can effectively prevent the formation of liquid_bridge between the particles of tourmaline and avoid the hard aggregation in the drying process.

正丁醇中的丁氧基在共沸蒸馏过程中在电气石颗粒表面可取代羟基，产生化学吸附，能有效防止液桥的产生，阻止干燥过程中超细粉末的硬团聚。

The results indicated that isoamyl acetate was a quite excellent azeotropic solvent, it effectively prevented the agglomeration of particles and greatly improved the fluffiness of the obtained dried precursor powders.

结果表明，乙酸异戊酯溶剂是一种非常理想的共沸干燥有机溶剂，其有效防止了粉体的硬团聚的形成；

With SnCl 2 · 2H 2O as catalyst, low molecule weight poly ( DL lactic acid) was synthesized using the coupling apparatus of azeotropic dehydration and condensation polymerization.

DL乳酸在催化作用下，采用共沸精馏聚合耦合装置，直接缩合聚合制得低分子量聚DL乳酸。

Algorithm for non-azeotropic ternary refrigerant mixture thermodynamic properties

三元非共沸混合制冷剂热力性质算法

By using azeotropic distillation method to separate water from PGME and calculating with UNIFAC thermodynamic equation as state equation, the process simulation is conducted and corresponding technological coefficients are worked out.

采用恒沸精馏方法来分离水和丙二醇单甲醚，并以UNIFAC热力学方程作为物性计算方法进行了全流程模拟计算。

The principle and methods azeotropic distillation drying as well as the choice of displacers were discussed.

探讨了共沸蒸馏置换干燥的基本原理、操作方法和置换剂的选择原则.

Studies indicate that chymist coprecipitation azeotropic distillation can better prevent from hard-agglomeration and obtains homodisperse nanoparticle.

研究表明,在共沉淀法中辅以共沸蒸馏过程,可以较好地防止粉体的硬团聚,得到分散均匀的纳米级超细粉体.

Further , the azeotropic point was eliminated therefore by adding ionic liquids.

进而,由于添加了离子液体, 体系的共沸点消除了.

The catalysts, reactor and separating methods for the azeotropic mixture in transesterification were emphasized.

讨论了酯交换法中采用的催化剂 、 反应过程及装置以及反应中产生的共沸物的分离方法.

One calls this azeotropic composition.

人们将此组成称为恒比组成.

Production of Potassium Tert Butoxide by Azeotropic Distillation with Reaction

共沸反应精馏制取叔丁醇钾

Thermodynamic cycle evaluation of a non-azeotropic mixtures in theory and experiment

一种非共沸混合工质的循环特性分析

The results showed that the relative volatility of ethanol-water azeotropic mixture increased obviously as solvent ratio increased and the slop cut of water-glycol lasted a very short time during which the temperature at the top of the column rose sharply.

实验得出，乙醇水体系的相对挥发度随溶剂比的增加而显著增大，水乙二醇过渡馏分段持续时间很短，在该段时间会出现塔顶温度急剧跃升的现象；

As a prototype of azeotropic mixture, water-ethanol system was studied experimentally.

水 - 乙醇体系作为一种典型的共沸混合物被研究.

This thesis also analyzes the temperature glide of some non-azeotropic refrigerants, and the characteristic of enthalpy change during the phase change process, which has much correlativity with the temperature glide.

本文第四章对非共沸混合工质的温度滑移特性，以及与温度滑移密切相关的焓变的线性特性进行了详细研究。

Comparison of performance between non-azeotropic mixtures working fluid and R22

一种非共沸循环工质与R22的性能对比实验

To solve these problems, we proposed azeotropic mixture auto-cascade heat pump in this thesis.

为解决这些问题,在本文中, 我们提出了非共沸混合工质自复叠热泵循环.

The study depicts the process of tetramethyl ammonium hydroxide pentahydrate and isopropyl alcohol azeotropic in the case of negative pressure 0.1 Mpa for 4h, and then dried by vacuum.

实验研究了在负压0.1MPa的情况下，五水四甲基氢氧化铵与异丙醇共沸4h，然后减压真空干燥得到四甲基氢氧化铵三水结晶化合物的过程。

Synthesis and Characterization of PCL/ DLLA Binary Azeotropic Copolymer Synthesis and crystallization behavior of hydroxyapatite-poly(ε-caprolactone)-polylactide composite biomaterial

ε-己内酯-DL丙交酯二元无序共聚物的合成与表征纳米羟基磷灰石/己内酯/丙交酯共聚物的合成和结晶行为

The AcOH consumption was reduced to 54kg/ t by the means of lower temperature operation, azeotropic rectifying, by product recovery and utilization.

扬子石化采用降温操作、共沸精馏和副产物回收利用，使醋酸消耗降至54kg/t。