The chlorination of pivaloyl chloride to prepared 3-chloropivaloyl chloride was took place in a packed distillation column with total reflux.
将新戊酰氯氯化为制得的3-氯新戊酰氯在全回流的填充蒸馏塔中进行。
This paper proposed and studied a new operation-the cascaded total reflux batch distillation.
本文提出并研究了一种新型的间歇精馏操作过程——全回流间歇精馏串联操作。
The article developed a new type of steam distillation and reflux apparatus. This apparatus can finish the operations of steam distillation, reflux and watershed. The results were good.
提出了一种新型水气蒸馏回流仪，该仪器具有水气蒸馏、回流提取及分水等多种功能，且便于操作。经试用，效果良好。
The distillation conditions including overhead pressure, reflux ratio for the recovery of 1,2- propylene glycol were studied.
本文还研究了精馏的一些操作条件对1，2-丙二醇精制过程的影响（塔顶压力、回流比等）。
Both the partial condensation technique and the anhydrous ethanol reflux azeotropic distillation technique show great advantage in energy saving according to the simulation results.
结果表明，部分冷凝工艺和回流段无水乙醇共沸精馏流程节能效果显著。
By analyzing the changes of reflux ratio, the optimum feed positions within the two distillation columns in the experimental device for double-effects distillation HGL of forward feed was determined.
根据回流比的变化，对顺流双效HGL精馏实验装置中两精馏塔的进料位置进行了优化。
The changing curve of temperature and concentration in top and bottom with time in fixed reflux ratio and batch distillation, were also obtained.
获得了该塔在全回流及部分回流条件下的全塔效率，固定回流比间歇精馏下的塔顶、塔釜温度及浓度随时间的变化曲线等。
The control of reflux is one of most important operations in the distillation process and research, the policy providing reflux has much connection with the control.
精馏过程的操作与研究中，回流控制是最重要的操作参数之一，提供回流的方式与精馏过程控制有很大的关系。
A new train of thought for finding minimum reflux ratio in distillation has been proposed in this paper.
本文提出寻求精馏系统最小回流比的新思路，并将它用于对二元精馏最小回流比的计算。
A new train of thought for finding minimum reflux ratio in distillation has been proposed in this paper.
本文提出寻求精馏系统最小回流比的新思路，并将它用于对二元精馏最小回流比的计算。
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