The homogeneous batch distillation and hetegeneous azeotropic batch distillation were studied for separating dimethylbenzene and butylacetate from the industrial waste solvents in this article.
研究了以均相间歇精馏和非均相共沸间歇精馏从工业废溶剂油中分离二甲苯和醋酸丁酯。
Reaction temperature is determined by co-boiling point while using organic solvent.
2;使用有机溶剂时,反应温度与共沸点有关。
It's quite difficult to purify the substance co-boiling with water.
与水共沸的物质的精制相当困难,一般工艺流程都较长。
A computer-aided molecular design(CAMD)method based on genetic algorithm was proposed to design extractant molecule for extractive distillation of 1-butanol-butyl acetate azeotrope system.
基于遗传算法思想提出了一种有效的分子设计方法,针对丁醇-醋酸丁酯共沸物系的萃取精馏萃取剂选择问题进行了分子设计,经比较筛选出塔顶产物分别是醋酸丁酯和丁醇时的较佳萃取剂为1,3-丙二醇和硝基丁烷。
Objective:Improve aleotropic crystallizing condition of penicilling and increase sylvite yield Method Azeotrope tower is added to W type bottom,Improved vacuum—degree and adjusted agitating rolling figure.
目的:改进青霉素共沸结晶条件、提高钾盐收率。
The variation of binary azeotropes with pressure were studied.
OkPa压力下的加压共沸点。
Improving the rate of return on sodium salt azeotropism crystallization by means of improving equipment;
改进设备提高青霉素钠盐共沸结晶收率
The azeotropism-fractionation process for recovering formic acid from acid wastewater in cyclohexanol/ cyclohexanone production was studied,and the feasible kind and dosage of entrainment reagent for was determined.
采用共沸—分馏组合法从环己醇和环己酮生产装置产生的酸性废水中回收甲酸,确定了适宜挟带剂的种类及加入量。
Thinking about Azeotropy of the Turpentine Oil and Alcohol;
松节油与乙醇的共沸问题及思考
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