方法：采用连续精馏法和双塔精馏法。
提出用精馏法预处理工业废水的一种优化设计方法。
In this paper, the author proposes a method for the optimal design of pretreating industrial wastewater by distillation method.
综述了化学交换精馏法分离同位素硼10的技术进展。
Advances in boron10 isotope separation by chemical exchange distillation are reviewed.
总结了磷化氢的精制方法，主要有吸附法、低温精馏法和膜分离法等。
The purification methods of phosphine include adsorption method, low temperature distillation method and membrane separation method etc.
叙述在环化反应温度下，用反应精馏法合成均三唑的方法。收率可达96％。
Sym-triazole is synthesized by reaction rectification under the temperature of cyclical reaction. The yield is 96%.
恒沸精馏法生产无水酒精能形成规模化生产，机械化程度高、产量大、质量好、消耗低。
Production of anhydrous alcohol by constant boiling rectification method has already presented its advantages such as highly-developed mechanization, high yield, high quality and low production costs.
据此对催化精馏法加以评述，指出该方法是当前世界上较先进、而且具有发展前途的新技术。
Comments the catalytic rectification process, points out that it is the relatively advanced and prospect new technology in the world.
确定了1,4 -二氧六环中所含的杂质，对共沸精馏法分离及提纯1,4 -二氧六环有重要指导价值。
Impurities in the dioxane were determined. The analysis method has important directive value for separating and purifying 1, 4-dioxane with azeotropic rectification.
其中第一步合成是关键，本文首次系统地研究了间接的两步法、低温吸附法、催化精馏法合成2，2-二甲氧基丙烷。
Various methods including indirective two-step synthesis , freezing-drying and catalytic rectification were used to synthesize 2,2-dimethoxypropane.
提出了用全液相组成牛顿拉夫森法模拟反应精馏的解算方法。
A algorithm for simulating reactive-distillation process is proposed by using the global-liquid components Newton Raphson method.
结合新松弛法和泡点法，对多元精馏塔进行稳态模拟计算。
New Relaxation Method and Bubble Point Method were usually combined in the rigorous continuous distillation calculations.
介绍连续反应精馏过程设计的两种研究方法：静态分析法和有限元正交搭配ocfe法。
Tow researching methods of design of continuous reactive distillation processes are addressed in this paper Analysis of statics and orthogonal collocation on finite elements (OCFE).
以电炉粗锌为原料，采用精馏-蒸发-冷凝法生产高品质超细活性锌粉。
High quality super fine zinc dusts are produced with electric furnace crude zinc pig as raw material by using distillation condensation technology.
在精馏设计过程中，简捷法是对所提供的方案进行快速估算的先决条件。
Short-cut methods are prerequisite for the fast evaluation of alternative design methods in rectification process.
本文介绍缔合物系精馏过程模拟计算的松弛法。
The relaxation method in analog computation for rectification process of associate systems is introduced.
结合催化和精馏的催化精馏脱硫法，在选择脱硫的对象上，相对传统的催化脱硫更具优势。
While the catalytic distillation desulfurization is a technology that combines catalysis and distillation, it has the great advantages over the traditional hydrodesulfurization.
在电石法pvc生产装置精馏工序和压缩冷凝回收工序排放的尾气中含有VCM。
In the production of PVC by calcium carbide method, tail gas contained VCM could be released from the rectifying process and compression-type condensation recovery process.
建立了间歇精馏无回流操作过程的数学模型，采用四阶龙格库塔法求解初值问题，计算无回流开工过程及间歇精馏脉动操作过程中无回流周期内各塔板浓度变化的动态特性。
The dynamic characteristic of concentration change on plates of batch rectification column in no reflux start up process and in no reflux period of pulse operation process have been calculated.
以反应精馏方式进行时，乙醇转化率、乙酸乙酯收率分别为94.09%和60.45%，明显高于普通蒸馏法，而乙醇转化为乙酸乙酯的选择性变化不大。
The results showed that the conversion rate of ethanol was 94.09%, the yield of ethyl acetate was 60.45%, obviously higher than conventional synthesis method, while the selectivity varied slightly.
研究了精馏-结晶联合法的分离工艺，介绍了精馏-结晶联合分离法的传质机理、数学模型、操作线方程。
Mass transfer mechanism, mathematical model and operating line equation of rectification-crystallization combination method are presented in this article.
精馏分水法较好地解决了甲酯化反应去水的问题；
The rectification is an effective method of removing water for the methanol esterification.
苯乙烯是重要的有机化工原料，通常采用负压绝热脱氢法，然后再精馏分离获得高纯度的苯乙烯产品。
Styrene is an important organic raw material for chemical industry. Normally it is made by dehydrogenization of ethyl benzene at adiabatic and vacuum conditions.
苯乙烯是重要的有机化工原料，通常采用负压绝热脱氢法，然后再精馏分离获得高纯度的苯乙烯产品。
Styrene is an important organic raw material for chemical industry. Normally it is made by dehydrogenization of ethyl benzene at adiabatic and vacuum conditions.
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