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发表于 2009-7-21 15:33:31
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来自： 中国河南郑州
有色金属(冶炼部分) 2007 年6 期: P8 b Z; x8 Y# |/ I" s: P- m
蒙延双1 ,朱福良2 ,张峰2 ,冯耀华2' R$ K K+ F3 W: R* Y- \
(11 昆明理工大学材料与冶金工程学院,昆明650093 ; H/ l# P$ u- r( B; o
21 兰州理工大学材料科学与工程学院,兰州730050): ~* p& f# N+ j- @
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& A; r* \% C9 V! q* n9 _: h, I3 p
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2 W: `5 m# U; z9 {+ o( l" |
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
, |' O3 Z7 z2 t2 b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
1 x. S$ R. x0 C3 [! \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 %。7 p8 T2 e- h0 s8 `% k Q9 I
关键词:镍电解液;溶剂萃取;P204 ;除铜
4 L" @% q" C' U( k B中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 036 i8 D! g/ O* \
Copper Extracting from Nickel Electrolyte with P204
4 c* Q+ C0 u/ u7 j" ]: OMEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2
. g7 {5 l, y' Y! a; O2 H(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;: a4 D- }4 _1 O- z I, \3 S
21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)8 u: x# ]3 i' r5 Y
Abstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so2" \3 G$ U( W- n1 g4 `
lution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac2& r ~2 k, F" M- E2 H& Q, c4 @' {3 R
tion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium
: E. y7 \7 D: a" T% q# dp H of the aqueous p hase and increases with rise in equilibrium p H1 The bigger t he O/ A ratio is , t he better6 \" n9 R. b g! [& C
t he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra2
$ I& n5 J7 J5 A( Ftio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or25 r2 r8 C* W2 S; s
ganic 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/ U4 s8 C8 v/ s( a. G
and t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec27 v* L% v' A0 G3 }
tively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex2
9 u- f9 y0 T) ^; Z. A9 nperiment s t he st ripping ratio can reach 84197 %1
7 D- N {: P9 D# sKeywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
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发表于 2009-7-20 17:41:34
