乙胺-水体系分离研究

Study on the separation of ethylamine water system

利用四乙烯五胺与氢氧化钾改性的石墨化炭黑来分离乙胺与水。在本实验中,将四乙烯五胺和氢氧化钾同时涂渍在石墨化炭黑上,用来改变石墨化炭黑对乙胺和水的吸附程度。其中,四乙烯五胺的主要作用是分离乙胺和水,而氢氧化钾的作用则是减少乙胺在气相色谱柱中的拖尾。最后调整两种固定液的浓度,能够达到完全分离乙胺与水的目的。

Ethylamine and water were separated by graphite carbon black modified by tetraethylene pentamine and potassium hydroxide. In this experiment,tetraethylene pentamine and potassium hydroxide were coated on graphitized carbon black at the same time to change the adsorption degree of graphitized carbon black to ethylamine and water. Among them,the main role of tetraethylenepentamine is to separate ethylamine and water,while the role of potassium hydroxide is to reduce the tailing of ethylamine in the gas chromatographic column. Finally,the concentration of two stationary liquids is adjusted to achieve the goal of completely separating ethylamine and water.