|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
乙二醛电氧化制备乙醛酸
, PP. 102-107
Keywords: 电化学合成,乙二醛,乙醛酸
Abstract:
本文介绍了一种用电化学法合成乙醛酸的新方法,采用以DSA作阳极材料的离子交换膜电解槽和周期性间歇操作方式,研究了乙二醛和盐酸混合体系中各种工艺条件对电流效率(CEa)和乙醛酸收率(RSa)的影响,得最佳电解条件:反应温度30～40℃,电解液流速1.4m/s,电极电流密度450A/m2,乙二醛初始浓度(wt%以下同)9.1%～16.0%,盐酸初始浓度4%～6%,在此条件下电解乙二醛,乙醛酸收率91.1%,电流效率80.0%.
| [1] | [2 ] PicjkettDJ ,YapKS .Astudyoftheproductionofglyoxylicacidbytheelectrochemicalreductionofoxalicacidsolution[J].J.Appl.Electrochem .,1974,4:17～ 2 3.
|
| [2] | ScottK .Electrolyticreductionofoxalicacidtoglyoxylicacid:Aproblemofelectrodedeactivation[J].Chem .Eng .Res.Des.,1986 ,6 4(7) :2 6 6～ 2 71.
|
| [3] | [4 ] GuiWei_dong.Electrochemicalsynthesisofglyoxglicacid[J].Chemicalworld(HuaxueShijie) ,1989,30 (6 ) :2 49- 2 5 2 .
|
| [4] | [5 ] WuMing_dong .Studyonelectrochemicalsynthesisofglyoxylicacid [D].EastChinaUniversityofScienceandTechology ,China ,1998.
|
| [5] | MicheletD .USPats.3,779,875 ;3,779,5 76 (1973)
|
| [6] | [6 ] HouYu ,HeHui_xin ,TongYu_ting,GuDeng_ping.TheElectrochemicalsynthesisofglyoxglicacidinapairedelectrodes[J].Chemicalworld(HuaxueShijie) ,1992 ,1:38.
|
| [7] | USPatent 4,2 35 ,6 84,Nov .2 5 ,1980 .
|
| [8] | GPierre,MELKordiandGCauquis.Electrochemicalsynthesisofglyoxylicacidfromglyoxal.Part1,Roleoftheelectrolyte,temperatureandelectrodematerialC .J.Electroanalchem .,1985 ,186 :16 7～ 177.
|
| [9] | Scottk .Apreliminaryinvestigationofthesimultaneousanodicandcathodicproductionofglyoxylicacid .Elec trochemicaActa .,1991,36 (9) :144 7～ 145 2
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
