|
|
楼主 |
发表于 2009-7-21 15:33:31
|
显示全部楼层
来自： 中国河南郑州
有色金属(冶炼部分) 2007 年6 期
& E8 Y( Z+ y" E5 z$ O: @蒙延双1 ,朱福良2 ,张峰2 ,冯耀华24 Z- F, P2 {1 u |& ^" ~; T+ w
(11 昆明理工大学材料与冶金工程学院,昆明650093 ;
% ~6 F3 v! u/ n! e( t! {21 兰州理工大学材料科学与工程学院,兰州730050)
9 y ]9 p6 x6 K, o( r摘要:以P204 为萃取剂,从镍电解液中萃取除铜。研究了p H、相比(O/ A) 、P204 体积浓度和振荡时间1 R: W. m/ v5 Z C+ {% w
对萃取效果的影响,确定了P204 萃取铜的最佳条件。结果表明:随着p H 的升高,铜的萃取率增大;相
: W5 G* c0 ]6 V6 }/ R, b比(O/ A) 越大萃取分离效果越好;随着P204 体积浓度的升高,铜萃取率也相应的升高。室温下P204 萃& E- _0 H& Q) C2 |( S$ R
取铜的最佳工艺条件: P204 的体积浓度15 % ,相比(O/ A) 1 ∶2 ,水相初始p H210 ,振荡时间3 min。在此
2 o# u6 I) [2 L最佳条件下,待处理液的一级萃取率达81133 %。反萃实验中反萃率可达84197 %。
3 b1 v, E6 W) N0 d: t* |! g: N! u关键词:镍电解液;溶剂萃取;P204 ;除铜4 {0 v, E6 u2 Q3 G: m; ~, K) ^) k1 x2 |. J
中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 03
5 M# L% s& C! R( r0 x( RCopper Extracting from Nickel Electrolyte with P204
( F5 j3 d: D! q' aMEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2( \- s2 l3 V4 _$ v
(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;
* N! S$ Z: l5 f- T* a" }21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)
: X7 q, b5 C) k9 x7 l, H9 v+ IAbstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so25 [# t5 c, M* l
lution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac2
c2 _/ L* q2 R5 h) {tion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium! v$ Q6 c/ P. j* |: C* V
p H of the aqueous p hase and increases with rise in equilibrium p H1 The bigger t he O/ A ratio is , t he better
6 s2 P& v* F; f# vt he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra2
# h1 K# N7 W* R# t) Otio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or2
5 e$ X9 w, [, kganic p hase is 15 % (Volume f raction) , t he p hase ratio (O/ A) is 1 ∶2 , p H of t he aqueous solution is 210
. @; i" y! M: w# U- b( R# x% J" Land t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec2
3 v- a% ]& @ |( C ytively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex2, s: y* m: J% v+ A' V% n
periment s t he st ripping ratio can reach 84197 %1! E" y( H/ r& z+ M. l" U- X# i
Keywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
|
发表于 2009-7-20 17:41:34
