solvent-recovery column

The results showed that the relative volatility of ethanol-water azeotropic mixture increased obviously as solvent ratio increased and the slop cut of water-glycol lasted a very short time during which the temperature at the top of the column rose sharply.

实验得出，乙醇水体系的相对挥发度随溶剂比的增加而显著增大，水乙二醇过渡馏分段持续时间很短，在该段时间会出现塔顶温度急剧跃升的现象；

The targets of this method is benzene, toluene, xylene ( three isomeric), styrene. It sampling on carbon tube, solvent desorbed or indirect thermal desorption and acked column gas chromatography to determination of aromatic hydrocarbon.

该方法主要检测的目标化合物包括苯、甲苯、二甲苯（三种异构体）、苯乙烯，采用活性炭采样，并使用二硫化碳溶剂解吸或间接热解吸的方法，配合填充柱气相色谱法分析。

Design of Solvent Treating Column for Butadiene Plant

丁二烯装置溶剂精制塔的设计

The oxygen containing components are obtained from Gudong Crude oil of Shengli by solvent extraction and separated into acidic and other components chromatographically on silica gel column.

用溶剂萃取法从胜利孤东原油中萃取、浓缩出含有机酸的活性组分，用柱色谱分离成窄馏分并进行了波谱鉴定。

A wide bore HP-fast GC residual solvent column was performed, and the effects of the equilibrium temperature and equilibrium time on the determination of ethyl acetate were studied.

试验采用大口径HP-快速GC残留溶剂柱为分离柱，对顶空平衡温度、平衡时间对残留有机溶剂乙酸乙酯测定的影响进行了分析研究。