pressure distillation

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。

The standard method with atmospheric pressure correction for distillation test of coking benzene products is studied. The distillation range of coking benzene products is defined.

研究了焦化苯类产品蒸馏试验的气压补正标准方法，对焦化苯类产品的馏程范围进行了定义。

Treatment of high concentration Chinese herbal medicine wastewater by low pressure distillation process

低压蒸馏法处理高浓度中药废水的研究

To obtain from a substance by chemical or mechanical action, as by pressure , distillation, or evaporation.

榨出,提取,蒸馏:通过化学作用或机械作用从某物质中获得, 如通过压榨 、 蒸馏或蒸发.

The argon-rich waste stream from the low pressure column is sent to an argon distillation column.

从低压塔流出的富氩废物被送到氩分裂蒸馏塔.

It is reveal by GC analysis that the purity of the TMP, treated by reduced pressure distillation and recrystallization in acetic ester, approximates to that of the reagent grade TMP.

GC分析结果表明：采用减压蒸馏及乙酸乙酯重结晶并用的方法精制的TMP纯度接近于试剂级TMP。

The process flow and production practice of-distillationreduced-pressure distillation for tar in Jigang coking plant are introduced.

介绍了济钢焦化厂焦油常、 减压蒸馏 的工艺流程、生产实践.

The high-purity MPC standard sample was obtained by reduced pressure distillation and the removal of minor phenol with dilute sodium hydroxide solution.

反应产物经减压精馏、碱洗、水洗、干燥等精制处理，得到了纯度较高的M PC标准品。

In this paper, benzoic acid refining distillation system with SNIA benzene liquid phase process was researched via simulation. The effect of theoretical tray numbers 、 operation pressure 、 reflux ratio 、 feeding position etc.

本文对SNIA甲苯液相法生产苯甲酸产品精馏系统进行了研究，考察了三个精馏塔的理论板数、操作压力、回流比、进料位置等条件对SNIA苯甲酸产品质量的影响。

Pressure distillation used in acetaldehyde production can save energy markedly.

将加压蒸馏技术应用于乙醛生产,节能效果显著.

A new hydration process of water and ethylene oxide by reaction distillation to produce glycol in high pressure was studied.

对反应蒸馏法水合环氧乙烷生产乙二醇的工艺进行了模拟。

The production reduced pressure distillation was analysed with IR, GC and studied by physical chemistry property.

通过正交试验得出其最佳条件,并对产物作了IR, GC分析和理化性能检验.