| 2,6-萘二酚的提纯工艺研究 |
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| 引用本文： | 张天永,李淑宁,李彬,邓永峰,袁仲飞.2,6-萘二酚的提纯工艺研究[J].陕西化工,2014(4):583-585. |
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| 作者姓名： | 张天永 李淑宁 李彬 邓永峰 袁仲飞 |
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| 作者单位： | [1]天津大学化工学院天津市应用催化和科学重点实验室天津化学化工协同创新中心,天津300072 [2]南通柏盛化工有限公司,江苏启东326000 |
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| 基金项目： | 国家自然科学基金（21103121,21276187）; 天津市自然基金（13JCQNJC05800） |
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| 摘 要： | 2,6-萘二酚粗品（纯度83.5%）在低级醇类、酯类单一溶剂或混合溶剂中重结晶,可以除掉杂质二聚物和2-萘酚等。较好的工艺条件为：m（活性炭）∶m（粗品）∶v（异丁醇）=0.1∶1∶3,回流搅拌30 min,过滤后滤液冷却得精制产品,纯度96.14%;m（活性炭）∶m（粗品）∶v（异丙醇）：v（水）=0.1∶1∶3∶9,纯度96.09%,收率68%,白色粉末状晶体。该工艺精制产品纯度高,经济环保,操作简便,易于工业化。
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| 关 键 词： | 2 6-萘二酚 提纯 单一溶剂 混合溶剂 |
Study on the process for producing high-purity2,6-naphthalenediol |
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| ZHANG Tian-yong,LI Shu-ning,LI Bin,DENG Yong-feng,YUAN Zhong-fei.Study on the process for producing high-purity2,6-naphthalenediol[J].Applied Chemical Industry,2014(4):583-585. |
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| Authors: | ZHANG Tian-yong LI Shu-ning LI Bin DENG Yong-feng YUAN Zhong-fei |
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| Affiliation: | 1. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) ,Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology,Tianjin University, Tianjin＇ 300072, China ;2. Nantong Baisheng Chemical Co. , Ltd. , Qidong 326000, China) |
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| Abstract: | Crude 2,6-naphthalenediol（ 83. 5% purity） was purified by the recrystallization method with lower alcohols,esters or mixed solvent to eliminate dimer and 2-naphthol. The improved process was applied as follows： m（ activated carbon） ∶ m（ crude product） ∶ v（ isobutyl alcohol） = 0. 1 ∶ 1 ∶ 3,and the mixture were stirred and backflow for 30 min,then cooled,filtered,and high-purity product was obtained. The purity of product was 96. 14%. m（ activated carbon） ∶ m（ crude product） ∶ v（ isopropyl alcohol） ∶ v（ water） = 0. 1∶ 1∶ 3∶ 9,the purity of product was over 96. 09% and the yield was 68%. The product purity obtained by the process was high,white powder crystal. The improved process was cheaper and environmentally friendly,and was easy to be operated and industrialized. |
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| Keywords: | 2 6-naphthalenediol purification single solvent mixed solvent |
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