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氯化氫的离子液体溶解性与研究

返回打印发布时间：2015/9/16 点击：10498

氯化氫气体在离子液体中溶解性能的研究的知识为您带来，一起来看看吧：

在化工等行業的生産過程中，會不可避免的産生大量的副産物氯化氫气体。如果不采取适当的处理措施，而将氯化氫气体直接排入大气，不仅会造成氯化氫资源的浪费，同时会严重破坏环境，甚至危及人类的生命。目前，工业中常用的方法是将氯化氫气体通入串联的多级吸收塔，用吸收剂水回收氯化氫气体，用于生产盐酸或高纯氯化氫气体。

但是，生产盐酸的经济效益低，而盐酸解析生产高纯氯化氫气体时，不仅腐蚀性很强，而且需要消耗大量的能量，生产成本很高。并节约生产成本，采用离子液体作为吸收剂，研究了不同温度和压力下氯化氫气体在离子液体中的溶解性能。

結果表明，氯化氫氣體在咪唑類離子液體和吡啶類離子液體中的溶解度都比水大，在室溫和常壓下，溶解度的摩爾分數在0.5以上。在咪唑類離子液體中的溶解度隨著陽離子取代基碳鏈長度的增加逐漸減小。結果表明，模型計算值與實驗值符合良好，適用于描述氯化氫氣體在離子液體中的溶解度行爲。

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