•  
  •  
 

Abstract

A simulative-continuous-operation approach was proposed to study the continuous operation for electroreduction of oxalic acid to gloxylic acid using a packed bed reactor and a parallel reactor with cooled cathode in order to solve the low productivity problem in current state by using traditional reactor.The effects of the concentration of oxalic acid and temperature on this process were also studied.Results showed that,after 30min of the reaction(residence time),the mass fraction of the produced glyoxylic acid in the catholic solution could reach 3.76% and 3.66% with respect to a saturated oxalic acid method and a step-temperature decreasing method.From this study,we conclude that it is feasible to produce glyoxylic acid through the three-dimensional electrode reactor under a continuous operation.

Keywords

Oxalic acid, Glyoxylic acid, Cooled cathode, Packed bed, Continuous operation

Publication Date

2005-11-28

Online Available Date

2005-11-28

Revised Date

2005-11-28

Received Date

2005-11-28

References

[1]FAN Jin-hong(樊金红),LI Jun(李军),SU Yu-zhong(苏玉忠).Research progress on electrosynthesisof glyoxylic ac id[J].Fu jian-chem.,2001(4):6~12.
[2]ZHANG X in-sheng(张新胜),CHEN Y in-sheng(陈银生),DAI Y ing-chun(戴迎春),et al.Scale-upinversigation on electrosynthesis of glyoxylic ac id[J].F ine Chem icals,2000,17,Supp l:37~39.
[3]CHEN Y in-sheng(陈银生),ZHANG X in-sheng(张新胜),DAI Y ing-chun(戴迎春),et al.Varying cur-rent electrosynthesis of glyoxylic ac id in pairs in thefixed bed electrolytic cell[J].E lectrochem istry,2002,8(1):60~65.
[4]ScottK.The role of temperature in oxalic ac id electrore-duction[J].E lectroch im.Acta,1992,37(8):1381~1388.
[5]FAN Jin-hong(樊金红),LI Jun(李军),CHEN Xue-yun(陈学云),et al.E lectrosynthesis of glyoxylicac id in a cooled cathode reactor[J].E lectrochem istry,2002,8(2):212~218.
[6]FAN Jin-hong(樊金红),LI Jun(李军),SU Yu-zhong(苏玉忠),et al.E lectrosynthesis of glyoxylicac id in a static-bed reactor w ith cooled cathode[J].App lied Chem ical Industry,E lectrochem istry,2004,33(3):24~27.
[7]HOU Yu(侯钰),HE Hu i-xin(何会新),TONG Ru-ting(童汝亭),et al.E lectrosynthesis of glyoxylicac id by pairs electrolysis[J].Chem ical world,1992,(1):37~40.
[8]LIAO Song(廖松),DENG Peng-fe i(邓鹏飞),OU-Gao-yong(欧国勇),et al.Study of electrosynthesis ofglyoxylic ac id[J].F ine Chem icals,2000,17(3):145~148.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.