Separation of tetrahydrofuran-ethanol binary azeotrope by extractive distillation

1、

The method to separate the product was discussed finally. The n-hexane azeotrope was used to purify the triethoxysilane and a good result was got.

同时对产物的分离进行了研究，采用正己烷共沸精馏提纯三乙氧基硅烷，得到了较好的结果。

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2、

So if I have this special mixture here, of A and B, at this point here, I form what's called an azeotrope.

如果我们有这样子特殊的A和B的混合物，在这个点，我们得到了所谓的共沸混合物。

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3、

The screening indexes of extractant include relative volatility, molecular weight, freezing point, boiling point, azeotrope judgement and molecule stability.

本文提出以相对挥发度、相对分子摩尔质量、熔点、沸点、共沸和稳定判断等为筛选指标进行分子设计；

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4、

The crystal of Malachite is more in the precursors dehydrated by azeotrope distillation than by normal heating.

共沸蒸馏脱水法比加热脱水法制备的前驱体含有较多的孔雀石相。

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5、

And a negative azeotrope here.

这时就是一个负的共沸混合物。

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6、

The dry furfural can be obtained and the composition of the tops was close to the composition of furfural water azeotrope.

通过对糠醛干燥塔中热醛汽流量的控制，可获得干燥糠醛，并使塔顶馏出物的组成接近糠醛水共沸组成；

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7、

Study on Structures and Properties of Fatty Alcohols with Quantum-chemical Descriptors and Topological Index benzene-methanol azeotrope

基于量化参数和拓扑指数的脂肪醇沸点QSPR研究苯-甲醇共沸混合物

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8、

The alcohol treatment mechanism is that the invaded water can be removed by decreasing surface tension and forming low boiling point azeotrope.

这是因为醇可以减小表面张力，与水或水和烃形成低沸点共沸物，将侵入的水排出。

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9、

The separation of azeotrope formed by methanol and DMC has been investigated by extractive distillation.

采用萃取精馏法对甲醇-碳酸二甲酯二元恒沸物进行了分离；

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10、

Prediction of binary azeotrope at superatmospheric pressures by UNIFAC method

UNIFAC基团贡献法预测加压下的二元共沸点

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11、

Study on the Separation of Azeotrope of Methyl Ethyl Ketone-water System Using Extractive Distillation with Salt

加盐萃取精馏分离甲乙酮水恒沸物的研究

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12、

Separation of Methanol-Acetone Binary Azeotrope by Extractive Distillation

萃取精馏分离甲醇和丙酮共沸物

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13、

On this base, the suggestion is put forward on optimization of azeotrope tower operation adjustment to reduce the operation cost.

在此基础上，提出了降低运行费用的共沸塔操作调整的优化方向。

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14、

Study of Fixation of Disperse Dyes en Polyester with Azeotrope of Benzyl Alcohol/ Water

分散染料用苯甲醇/水共沸蒸汽固色的研究

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15、

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

萃取精馏分离甲醇与醋酸甲酯的实验研究

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16、

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

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17、

Study on Separation of Azeotrope

共沸物系分离的研究

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18、

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。

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19、

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

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20、

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。

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