焦磷酸钛对烃类的吸附性能研究  

Study on Absorption Properties of Titanium Pyrophosphate to Alkanes and Aromatic Compounds

作　　者：朱涤尘 

机构地区：[1]西安市天然气公司进口办公室,西安710068

出　　处：《淮海工学院学报（自然科学版）》1998年第4期38-42,共5页Journal of Huaihai Institute of Technology:Natural Sciences Edition

摘　　要：无机离子交换剂作为气固色谱填料已受到了人们的关注。本文将合成的无机离子交换剂 -焦磷酸钛 (钠型、铜型 )作吸附剂 ,用气相色谱法测定了某些烷烃和芳烃的吸附热 (ΔH)及吸附熵(ΔS′) ,探讨了烷烃和芳烃的吸附机理。研究结果表明 ,同系物间的 ΔH与 ΔS′和烃类碳数间有很好的线性关系。ΔH与ΔS′之间亦呈线性关系 ,这表明在焦磷酸钛 (Ti PP)吸附剂上有热力学补偿效应。The absorption Entropy and Enthalpy of some alkanes and aromatic compounds on Titanium Pyrophosphate absorbents in Na+and Cu2 +forms are measured with gas Chromatography.The linearrela- tionships among ln V′R,ΔH,ΔS′and carbon numbers of compounds in a homologue have been found.Itis also found that there is a linear relationship betweenΔH,ΔS′of aromatic compounds in a homologue, which is called the thermodynamic compensation effect.The iso- thermodynamic points of four homologues on two absorbents have been calculated.With Cu- Ti PP column,some mixtures of hydrocarbons are suc- cessfully separated.

关 键 词：气固色谱 焦磷酸钛 吸附热 烃 吸附熵 吸附性能 

分 类 号：O622.1[理学—有机化学] O647.33[理学—化学]