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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: \/ P* a c% v) _# x9 h
蒙延双1 ,朱福良2 ,张峰2 ,冯耀华2 s: i3 z( n- G% u: I
(11 昆明理工大学材料与冶金工程学院,昆明650093 ;
# y( u1 S& g, u21 兰州理工大学材料科学与工程学院,兰州730050)
) x4 w5 ]* d: c# @2 A; z( k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
# _ ]6 {8 ~3 z6 C8 q! D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
% [* i. ^5 e: E7 C8 B1 ~3 R, f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
. |8 z7 b( ] {7 d/ l0 N+ |4 W$ L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9 `! E7 Z Y# k8 B/ V
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 %。8 i5 Q6 k9 ?8 l( v2 {
关键词:镍电解液;溶剂萃取;P204 ;除铜
1 i4 L: g& I; e( J$ W$ a中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 03
- X$ Y Z+ s/ L1 k. `# NCopper Extracting from Nickel Electrolyte with P204# s' N+ C4 X* z6 |* A% M3 Y
MEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2
! b: W/ J' G2 S3 p. Q(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;
& O, L6 |6 n. o% X( G3 c$ T* E21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)
& d5 y' o/ w2 |2 z3 O) i6 @8 aAbstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so25 x2 W ~: i- N P: x: M
lution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac2
7 f6 S+ Y* l T) S7 N! M/ Gtion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium( X' W, O1 w! I; n' ] U( }! i7 u
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. b! Y8 P: E0 t( s! t
t he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra2
& v9 i( {* [: K1 r- ~1 i1 d; Etio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or26 p0 E, N" V7 s9 z, d. Y
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: f1 P) A3 }3 ?/ C1 f" W$ Fand t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec2/ m" w* Y* U8 A7 N; m9 {5 R+ ]
tively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex2" ^. [. o: H$ y- z5 K2 @
periment s t he st ripping ratio can reach 84197 %1
. ]2 B3 c& l9 t) H3 K r# i4 u9 M: NKeywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
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发表于 2009-7-20 17:41:34
