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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
$ |: _" `% ~5 T! J# K- a4 e; K: r蒙延双1 ,朱福良2 ,张峰2 ,冯耀华2
, O; E( {' L! I; _$ X- e(11 昆明理工大学材料与冶金工程学院,昆明650093 ;
: x* @2 ~: O. K( |/ g* m21 兰州理工大学材料科学与工程学院,兰州730050)
) n s: I( t3 L5 G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
) n. \/ G2 z- y0 [ Y7 z; 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4 n( ]* {1 {0 q1 D' I
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
( p% Z2 m+ [& u/ w0 K" h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
: U' i& A$ R! G }# v* R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 %。
2 S: K1 G- F$ w2 i! c关键词:镍电解液;溶剂萃取;P204 ;除铜
, E+ p, r, W/ e+ h: N中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 031 S& P" @; M" |2 l9 W, h, G' i/ w2 q
Copper Extracting from Nickel Electrolyte with P204
3 k) [( z1 O( u) TMEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2
' j3 U5 N0 [3 `$ t, P+ [' A' j, y(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;
, \% w- t8 ~+ b5 e8 s# |21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)! o S- B0 t& v: W' h
Abstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so2
! H _" _) W$ alution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac2
9 l& _# L/ [5 W- I8 @$ k6 d/ w4 otion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium
2 ]. I" @& F, e5 yp H of the aqueous p hase and increases with rise in equilibrium p H1 The bigger t he O/ A ratio is , t he better1 ~& ~" p& S! B
t he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra2+ B5 g; M! Q' }, B$ |
tio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or25 J3 g3 u" b& y- k6 U
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( R1 o/ y/ z H9 _( s( ?" o
and t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec2/ A0 U) z% E5 s$ w8 ]
tively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex2
- n/ X# z4 C& a1 {periment s t he st ripping ratio can reach 84197 %1
# g) T7 L! D% T( z2 L1 sKeywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
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发表于 2009-7-20 17:41:34
