reduced pressure distillation

A new method is presented for synthesis of organosilicon compounds directly from precipitated white carbon black by reduced pressure distillation .

该文研究了以沉淀白炭黑为原料，采用减压蒸馏法直接合成六配位体有机硅化合物的新方法。

The reduced pressure distillation experiment on the liquid paraffin was done and the Engler distillation curve was obtained .

进行了石蜡油的减压蒸馏实验，得到了恩氏蒸馏曲线。

The production of 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。

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MPC标准品。

The advantage and disadvantage of the five recycling methods , direct heating , direct aqueous vapor , indirect aqueous vapor , reduced pressure distillation , precipitation method , is discussed .

探讨了直接加热法、直接水蒸汽法、间接水蒸汽法、减压蒸馏、酒精沉淀等五种回收方法的优缺点。

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。

Experimental Study on Reduced Pressure Membrane Distillation Concentration Processing Doctor Solution

减压膜蒸馏浓缩处理脱硫液的试验研究

The process flow and production practice of air - distillation and reduced - 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 quantitatively influence of reduced pressure in distillation on the phase equilibrium of ethyl benzene & phenyl ethylene by means of Excel was analysed .

用EXCEL定量分析了减压对乙苯&苯乙烯相平衡的影响。