利用固体透氧膜(SOM)法电解Cr2O3制取了金属铬并与熔盐电解(FFC)法进行了对比. SEM,EDX和XRD分析表明: SOM法电解2 h,Cr2O3阴极片完全被还原成金属Cr,电流效率为83%,电流密度为0.35 A/cm2;FFC法电解6 h,Cr2O3阴极片只有外层被还原成金属Cr,内层为未还原物相,其电流效率为22%;分析两种方法电流随时间变化的规律表明, SOM法电解速度快,电流效率高,电流密度大、无副反应发生.
参考文献
| [1] | Zhou J H.Producing Technology for Ferroalloy.Beijing:Science Press,1991:136 (周进华.铁合金生产技术.北京:科学出版社,1991:136) |
| [2] | Lyakishev N P,Gasik M I.Metallurgy of Chromium,New York,NY:Allerton Press,1998 |
| [3] | Cotarta A,Bouteillon J,Poignet J C.J Appl Electrochem,1997; 27:651 |
| [4] | Bonciocat N,Cotarta A,Bouteillon J,Poignet J C.High Temp Mater Proc,2002; 6:283 |
| [5] | Cotarta A,Bouteillon J,Poignet J C,Vasiliu F,Cotarta V.J Appl Electrochem,2001; 31:987 |
| [6] | Chen G Z,Gordo E,Fray D J.Metall Mater Trans,2004;35B:223 |
| [7] | Gordo E,Chen G Z,Fray D J.Electrochim Acta,2004;49:2195 |
| [8] | Cheng H W,Lu X G,Li Q,Liu J M,Ding W Z,Zhou G Z.Aeta Metall Sin,2006; 42:500 (程红伟,鲁雄刚,李谦,刘建民,丁伟中,周国治.金属学报,2006;42:500) |
| [9] | Krishnan A,Lu X G,Pal U.MetaU Mater Trans,2005;36B:463 |
| [10] | Fray D J,Farthing T W,Chen G Z.U K.International Patent PCT/GB99/01781,1998-06-05 |
| [11] | Chen G Z,Fray D J,Farthing T W.Nature,2000; 407:361 |
| [12] | Liu M F,Guo Z C,Lu W C.Chin J Nonferrous Met,2004; 14:1752 (刘美凤,郭占成,卢维昌.中国有色金属学报,2004;14:1752) |
| [13] | Chen G Z,Fray D J,Farthing T W.Metall Mater Trans,2001; 32B:1041 |
| [14] | Chen G Z,Fray D J.J Electrochem Soc,2002; 149:455 |
| [15] | Schwandt C,Fray D J.Electrochim Acta,2005; 51:66 |
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