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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: ]) o. R1 H7 J! `' i# N
蒙延双1 ,朱福良2 ,张峰2 ,冯耀华2
: { e$ z% } l3 @+ O(11 昆明理工大学材料与冶金工程学院,昆明650093 ;
5 i$ @% Q2 t+ h0 n1 j% p3 C21 兰州理工大学材料科学与工程学院,兰州730050)0 T3 n) y9 _1 D6 a5 U
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, {( T6 W1 l/ Z% D2 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. y$ y# q9 m) ]
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
7 s2 E9 C1 X" D4 q9 W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2 j: y% s& O: |+ V5 L
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 %。1 N$ T/ [8 m+ L; o l3 c. T. {. g, s
关键词:镍电解液;溶剂萃取;P204 ;除铜( X0 _! W- t1 e# [
中图分类号: TF811 文献标识码:A 文章编号:1007 - 7545 (2007) 06 - 0007 - 03
: ?5 U+ G- }& Z, n, aCopper Extracting from Nickel Electrolyte with P204
+ S1 Q/ r- ?" s* w! {1 gMEN G Yan2shuang1 , ZHU Fu2liang2 , ZHAN G Feng2 , FEN G Yao2hua2, r; R9 y K! [, Y& {
(11 Faculty of Materails and Metallurgical Engineering , Kunming University of Science and Technology1 Kunming 650093 , China ;
8 D5 R" S1 t& P8 Z/ V" Q( r21 College of Materials Science and Engineering , Lanzhou Univ1 of Tech1 , Lanzhou 730050 , China)
. t6 X3 h' v% G( b2 h+ s" g+ pAbstract :Copper was ext racted f rom nickel elect rolyte wit h P2041 The effect s of p H values of aqueous so2- ]" @7 z- c7 Z, C3 U! N4 |
lution , t he p hase ratio (O/ A) , volume concent ration of P204 and time of oscillation on the copper ext rac2+ S( c7 V8 _8 X& [
tion ratio were investigated1 The result s show t hat t he copper ext raction ratio depends on the equilibrium: j$ M- N) g/ I$ G2 ?' n
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 better4 `* `/ z! K# L' H- q8 A; o
t he copper ext raction ratio is1 Wit h t he increasing of the volume concent ration of P204 , the dist ribution ra2, Y2 z/ Z6 q; C' v# N8 B' d1 ~9 `
tio of copper was increased1 The optimum conditions are determined that concent ration of P204 in t he or22 O" S% i4 q: p, `- ]' q
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! S# O) p Y+ j# d6 W5 N
and t he time of oscillation is 3 min1 Under t he optimized operating conditions copper can be ext racted effec2
+ n$ c6 q0 f1 @5 j3 F: Z+ ztively and t he copper ext raction ratio at t he fir st stage reaches 81133 %1 Meanwhile , in t he following ex2) X4 t7 C ~' p8 Y# B: ^- h. U$ A
periment s t he st ripping ratio can reach 84197 %1, ~& V# {, ` K, Z0 D
Keywords : Nickel elect rolyte ; Solvent ext raction ; P204 ; Copper removal |
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发表于 2009-7-20 17:41:34
