Cr_2O_7~(2-)/Cr~(3+)间接氧化环己醇合成己二酸

梁镇海; 崔玉青; 孙红艳

doi:10.61558/2993-074X.1860

电化学 >

2008 , Vol. 14 >Issue 1: 40 - 45

DOI: https://doi.org/10.61558/2993-074X.1860

研究论文

Cr_2O_7~(2-)/Cr~(3+)间接氧化环己醇合成己二酸

梁镇海 ,
崔玉青 ,
孙红艳

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太原理工大学洁净化工研究所,太原理工大学洁净化工研究所,太原理工大学洁净化工研究所山西太原030024,山西太原030024,山西太原030024

收稿日期: 2008-02-28

修回日期: 2008-02-28

网络出版日期: 2008-02-28

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Synthesis of Adipic Acid from Cyclohexanol by Electrochemical Oxidation Using Cr_2O_7~(2-)/Cr~(3+) as Indirect Oxidant

LIANG Zhen-hai ,
CUI Yu-qing ,
SUN Hong-yan

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(Institute of Clean Technique for Chemical Engineering of Taiyuan University of Technology,Taiyuan 030024,Shanxi,China

Received date: 2008-02-28

Revised date: 2008-02-28

Online published: 2008-02-28

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摘要

以Cr2O72-/Cr3+作为间接氧化剂电氧化环己醇制备己二酸.应用正交实验优化工艺条件,得出在原料比n(环己醇)∶n(Cr2O72-)=0.4∶1,t=35℃和CH2SO4=5mol.L-1条件下己二酸的收率可达70.29%.同时研究了Ag2SO4、(NH4)2SO4、H2SO4浓度、电流密度对Cr3+电氧化为Cr2O72-的影响,Cr3+的转化率可达82.52%.

关键词： 间接电氧化; 环己醇; 己二酸; Cr2O72-/Cr3+

本文引用格式

梁镇海 , 崔玉青 , 孙红艳 . Cr_2O_7~(2-)/Cr~(3+)间接氧化环己醇合成己二酸[J]. 电化学, 2008 , 14(1) : 40 -45 . DOI: 10.61558/2993-074X.1860

Abstract

Adipic acid was synthesized by electro-oxidation of cyclohexanol taking Cr2O72-/Cr3+ as indirect oxidant.The best technological conditions were optimized by orthogonal experiment.The optimum condition are as follows: the temperature is 35℃,ratio of crude material is n(cyclohexanol)∶n(Cr2O72-)=0.4∶1 and concentration of H2SO4 is 4 mol·L-1.Under these conditions,the yield of adipic acid can reach 70.29%.Moreover,The effects of concentration of Ag2SO4,(NH4)2SO4,H2SO4and current density on the formation of Cr2O72-were also explored.The rate of Cr3+ conversion can reach 82.52%.

Key words： indirect electro-oxidation; cyclohexanol; adipic acid; Cr2O72-/Cr3+

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