高纯试剂环己烷的提纯方法  

Purification Methods of High-purity Reagent Cyclohexane

作　　者：田洪旭[1] 曲健 倪余文[1] 陈吉平[1] TIAN Hong-xu;QU Jian;NI Yu-wen;CHEN Ji-ping(CAS Key Laboratory of Separation Science for Analytical Chemistry,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China)

机构地区：[1]中国科学院大连化学物理研究所分离分析化学重点实验室,辽宁大连116023

出　　处：《化学试剂》2023年第10期83-87,共5页Chemical Reagents

基　　金：国家重点研发计划项目(2019YFC1804702)。

摘　　要：环己烷作为一种重要的有机试剂,在工业生产、实验室分析等领域有着广泛的应用。利用环己烷的熔点与其杂质差异较大的特点,通过重结晶-过滤提纯-萃取除醇-干燥脱水等步骤,获得了纯度为99.998%的高纯环己烷,各项指标优于T/CRIAC 0072—2022《化学试剂高效液相色谱用试剂环己烷》中相关指标要求。解决了环己烷试剂痕量杂质除去难度大、成本高等问题。降低了环己烷的提纯成本,减少了环境污染。所获得的高纯试剂环己烷在光谱分析、痕量污染物分析、化工合成等领域有着广泛的应用前景。As an important organic reagent,cyclohexane has been widely used in industrial production and laboratory analysis.In this work,a recrystallization-filtration purification-extraction alcohol removal-drying and dehydration method was adopted to obtain 99.998%cyclohexane based on the distinct melting points between cyclohexane and other impurities.The indicators are better than the relevant requirements in T/CRIAC 0072—2022“Chemical reagent cyclohexane for high-performance liquid chromatography”.It solves the problems of difficulty and high cost of removing trace impurities of cyclohexane reagent.It reduces the purification cost of cyclohexane and reduces environmental pollution.The obtained high-purity cyclohexane has broad application prospects in spectral analysis,trace contaminant analysis,chemical synthesis,and other fields.

关 键 词：高纯试剂 环己烷 重结晶 提纯 乙醇 

分 类 号：O65[理学—分析化学]