顺式对位环己二甲酸异构化的化学平衡和动力学的研究

The chemical equilibrium and reaction kinetics of isomerization of sodium cis-hexahydroterephthalate in aqueous solution

在高压搅拌釜中，研究了顺式对位环己二甲酸（顺ＨＴＰ）钠盐在水溶液中异构化成反ＨＴＰ钠盐，在２２０～２８０℃的化学平衡和在８０～２２０℃的反应动力学。结果表明，这一反应是放热的一级可逆反应。其化学平衡常数与温度的关系为：１ｎＫ＝ －０．７４７２；反应热为：ΔＨ０＝－８．４９２（ｋＪ／ｍｏｌ）；反应速率常数为：ｋ＝３．５１０×１０（１１）ｅｘｐ（ ）（ｈ（－１））；活化能为：Ｅ＝１１０．０（ｋＪ／ｍｏｌ）。

he chemical equilibrium and reaction kinetics of the isomerization of sodium cis-hexahydroterephthalate in aqueous solution were studied in the temperature ranges of 220￣ 280℃ and 180￣220℃ respectively. It was proved that this reaction is an exothermic,reversible, and first order reaction. Its equilibrium constant is related to temperature by The reaction heat is ΔH0=8. 492 (kJ/mol)Its reaction rate constant is with activation energy of