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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
6 V- i, ], [7 ^& Z. j蒙延双1 ,朱福良2 ,张峰2 ,冯耀华2
3 |5 N& W$ H7 R6 C0 C0 u# o(11 昆明理工大学材料与冶金工程学院,昆明650093 ;5 z) d: i5 Z( F6 F U
21 兰州理工大学材料科学与工程学院,兰州730050)
4 B' Q8 J+ ?! }( P4 }# A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
8 Z$ ^2 i6 M/ T/ V) O) s* ~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
! Y7 B! P3 r4 e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
) \/ H7 y% b4 v2 \3 j. U" y- U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
6 L7 c, X) e, m/ w4 b& m$ o6 g/ d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 %。
: s x' k+ Q5 c6 J6 d% _5 v( A关键词:镍电解液;溶剂萃取;P204 ;除铜, b8 B$ F5 r# S7 b! q
中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 03
* t* K7 q3 e# G, xCopper Extracting from Nickel Electrolyte with P204" \, u6 K2 e( s, B3 U
MEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2
{7 |( D* y ^( P(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;
7 H' K/ Y: V: s" }1 d3 c21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)/ _, {0 j+ u3 m t
Abstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so2$ c# K. b( W9 {
lution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac2
2 k, d5 U3 r5 T9 {# jtion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium
1 S; e1 X P3 J w9 M! e1 Q) W* bp H of the aqueous p hase and increases with rise in equilibrium p H1 The bigger t he O/ A ratio is , t he better5 Z; h" c l, S p6 s4 i. V
t he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra2
5 c. @- p% x0 ?tio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or2
1 b9 h. r/ O) o7 v p5 ]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
@+ ^; o6 C1 e8 Aand t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec27 i, X9 U* q3 v# n' q
tively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex20 J+ Z- j E& D/ G2 M& W- Q
periment s t he st ripping ratio can reach 84197 %1
4 ^! h8 t# W- G& h" {4 O yKeywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
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发表于 2009-7-20 17:41:34
