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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8 E# I. _) V- |0 b
蒙延双1 ,朱福良2 ,张峰2 ,冯耀华2
; G; l3 V1 v+ l, M, [0 z* d- g j(11 昆明理工大学材料与冶金工程学院,昆明650093 ;2 l4 |5 W) B3 M0 S. E
21 兰州理工大学材料科学与工程学院,兰州730050). I1 I; D7 [) a' k( k7 L, y! ?7 S
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: U8 V+ x ]4 m
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
' V2 o& B( A K6 h; v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. c. o# Z( O2 P! C, ?. W7 b( p
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
: i& d, k5 i3 l4 c/ W1 A+ @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 %。
) g4 @$ R3 q1 l) A关键词:镍电解液;溶剂萃取;P204 ;除铜' u) }0 j4 W% a$ G
中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 03 d" `# ~. s/ X! Q
Copper Extracting from Nickel Electrolyte with P204
3 |7 ^3 l2 u) g+ { Q, S" \9 eMEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2
' S: O" i- ~- K3 _* S- U, `3 U(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;
/ `+ F7 f3 V0 a7 {7 T- Y21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)
$ {6 m9 d% H0 h- W! s. u/ R' G: D7 `Abstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so2
" @" V; {3 l# ^, L+ v* E9 }lution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac23 K& i: [$ j! u4 w7 A4 c/ S
tion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium
* ~) a) \% e- }7 Op 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& D. _5 o2 {! m5 o$ ^
t he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra20 d5 \. j2 R/ ?0 h% D. G
tio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or2, g' S6 g1 _4 C4 U$ T! ?8 j% t
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
% H; a" L0 J7 b9 a# ^9 Y$ v4 o8 Oand t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec2 J" \+ X- W9 }. x
tively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex20 L/ d6 ?* u1 A6 N" Y! ~
periment s t he st ripping ratio can reach 84197 %1
* ?% [( D$ |6 _4 FKeywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
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发表于 2009-7-20 17:41:34
