Simple distillation

A simple distillation device for determination of nitrogen content

凯氏氮量测定的简易蒸馏装置

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Study on the Structure of Simple Distillation Residue Curve Maps

简单蒸馏残余曲线图结构的研究

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Recovering isopropanol by simple distillation and phase separation with salt has been studied.

采用普通精馏与加盐分相技术回收异丙醇。

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Extended properties and a methodology for the determination of the structure of simple distillation residue curve maps for ternary mixture are described.

介绍了三组元混合物共沸系统中简单蒸馏残余曲线图结构的性质和画法。

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HCl-H2O solution system is a solution with highest permanent boiling point and it is difficult to get the concentrated hydrochloric acid solution at the top of the tower through simple distillation.

HCl-H2O溶液属于具有最高恒沸点的溶液，通过简单蒸馏，不能在塔顶得到浓缩的盐酸溶液。

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At first, the describing method of the problem is put forward systemically in this paper, that is to say, a binary tree of the complete mode and the shortcut mode is respectively used to express a simple column distillation separation sequence.

本文首先系统化提出了问题的描述方法，即采用完全模式和简捷模式二叉树表达简单塔精馏分离序列。

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The reaction was carried out at a temperature of 175& 185 ℃ and under a hydrogen pressure of 60 atmospheres. After a simple distillation, the content of furfuryl alcohol in the product reached 99% wt.

该催化剂在反应温度175&185℃、氢压为60大气压的条件下反应，产物氢化液糠醇含量在98%以上，氢化液经简单蒸馏，馏出液中糠醇含量在99%以上。

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Compared to the three-step distillation process, this technology shows advantages of simple technology and less investment for facilities. It has shown that the present two-step separation by use of thin film evaporator for reduction of free TDI in polyurethane prepolymer is feasible.

得到的TDI加成物和三级蒸馏相比，工艺简单，设备投资小，说明内冷式薄膜蒸发器设备采用两级分离聚氨酯预聚物中的TDI是可行的。

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Simple distillation just is fit for separating liquid compounds with significant differ-ent boiling points.

蒸馏方法适用于沸点相差较大的液体混合物的分离。

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These extractive agents improve the relative volatility of CFC-115/ HFC-125 to above 2.7.High purity HFC-125 can be obtained from the extracting solution with simple distillation.

用这些萃取剂可将CFC-115/HFC-125体系的相对挥发度提高至2.7以上。

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With the help of equivalent simple distillation process, the objective value, that is the fitness, of complex process was determined.

借助于等价的简单塔序列流程，确定了复杂流程的目标值（即适应度）。

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Based on the stage difference equation proposed, the mathematical models and theoretical plate number for simple distillation column and distillation column with sidestream were set up and calculated respectively.

利用新提出的塔板差分方程（Stage difference equation，SDE），分别对简单精馏塔和有侧线出料的精馏塔进行了SDE数学模型的建立和理论塔板数的设计计算。

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The process simulations of vacuum simple distillation and rectification were conducted, and the effect of operating conditions on distillation result was also studied.

分别以原料、预处理物为进料，建立了简单蒸馏、精馏流程模拟，研究了模拟条件对分离结果的影响。

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The output of styrene monomer was 84.5% and its purity was above 99.9% through simple distillation.

粗产物经简单蒸馏，苯乙烯的总回收率为84.5%，苯乙烯单体纯度可达99.9%以上。

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Finally, the exergy flows within a simple distillation column are given to illustrate the application of the costing strategy.

最后以一个简单分馏塔流的计价来表明该计价策略的实际应用过程。

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Recovering pyridine by simple distillation and phase separation with salt was studied.

研究了普通精馏与加盐分相技术在回收吡啶中的应用.

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