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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
+ L2 P2 b e1 x蒙延双1 ,朱福良2 ,张峰2 ,冯耀华2
Z5 t5 s5 y* b8 Q9 U; r# p% t/ ~0 T(11 昆明理工大学材料与冶金工程学院,昆明650093 ;
0 d5 w# H! |+ M7 S' B2 h/ G [21 兰州理工大学材料科学与工程学院,兰州730050)/ q- C2 E: c/ o5 X
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& E6 s6 U8 c& g) z
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) `9 W l& n( ?2 @: N
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
* W* B) p( Z3 z: J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
4 Y# ^9 |+ }+ O* ^, z' X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 %。- e1 c t6 C* m+ c' z% Q
关键词:镍电解液;溶剂萃取;P204 ;除铜! {% A; Q0 \7 m3 u* I9 [2 N
中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 03
( j" t/ n' e: ^1 C1 R6 rCopper Extracting from Nickel Electrolyte with P2041 R4 p7 }" s; q9 L
MEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2% m. B. u" |( v5 k8 O' H+ M
(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;$ R d( u' J) C# m+ @9 e3 Y, J
21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)+ z; u$ n. L* [5 X3 W5 h. i5 e6 r
Abstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so2
) e( e4 d% d8 F- plution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac2
1 U4 B; O' N/ a( F: k: Q/ w Gtion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium4 N6 l" D d9 ? c4 K$ y
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- n: @5 I- e$ R9 b8 \ l8 ^0 o* x1 `
t he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra25 y; i) p4 A+ A2 J4 U8 x, k4 A1 \
tio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or2. N1 I9 i# k5 U2 K
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
1 h9 r: J# S0 L6 B) L/ q% T5 [1 aand t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec2
' m; r' d4 j' b, D: Atively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex2
2 g& r* O2 B# ?7 f6 dperiment s t he st ripping ratio can reach 84197 %1
9 `4 N9 |& y r& X9 XKeywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
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发表于 2009-7-20 17:41:34
