Green separation of copper and zinc using triblock copolymer aqueous two-phase systems

被引：41

作者：

de Lemos, Leandro Rodrigues ^{[1
]}

Campos, Raquel Araujo ^{[1
]}

Rodrigues, Guilherme Dias ^{[1
]}

Mendes da Silva, Luis Henrique ^{[1
]}

Hespanhol da Silva, Maria C. ^{[1
]}

机构：

[1] Univ Fed Vicosa, Dept Quim, Grp Quim Verde Coloidal & Macromol, Ctr Ciencias Exatas & Tecnol, BR-36560000 Vicosa, MG, Brazil

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2013年 / 115卷

关键词：

Aqueous two-phase system; Green chemistry; Triblock copolymer; Liquid-liquid extraction; LIQUID-LIQUID-EXTRACTION; BIPHASIC SYSTEMS; PHASE-EQUILIBRIUM; BLOCK-COPOLYMERS; NICKEL IONS; METAL-IONS; SALTS; 1-(2-PYRIDYLAZO)-2-NAPHTHOL; COBALT(II); PHOSPHATE;

D O I：

10.1016/j.seppur.2013.04.048

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The separation of copper and zinc was studied using aqueous two-phase systems (ATPSs) formed by triblock copolymers (L64), electrolyte (MgSO4, Li2SO4 or Na2C4H4O6) and water in the presence of 1-(2-pyridylazo)-2-naphthol (PAN) as an extractor. The separation behavior of the metals is affected by the quantity of extractor added, the pH of the system, the nature of the ATPS electrolyte and the system composition. The maximum separation (S-Cu,S-Zn = 204) of Cu and Zn was obtained with the L64 + Na2C4H4O6 ATPS at pH 3.0, a tie-line length of 41.28% (m/m) and a PAN/metal molar ratio of 3.0. For this ATPS system and at the same thermodynamic condition, the copper stripping percentage reached a maximum value (%S = 83.3%) using H2SO4 0.076 mol kg(-1). (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：107 / 113

页数：7

共 35 条

[1]

Argarwal S., 2010, INT J MINER PROCESS, V97, P85

[2] Partitioning of human antibodies in polyethylene glycol-sodium citrate aqueous two-phase systems [J].

Azevedo, Ana M. ;

Gomes, A. Gabriela ;

Rosa, Paula A. J. ;

Ferreira, I. Filipa ;

Pisco, Angela M. M. O. ;

Aires-Barros, M. Raquel .

SEPARATION AND PURIFICATION TECHNOLOGY, 2009, 65 (01) :14-21

[3] SOLVENT EXTRACTION OF CERTAIN TRANSITION METAL IONS WITH 1-(2-PYRIDYLAZO)-2-NAPHTHOL - A STUDY OF COMPLEX FORMATION AND DISTRIBUTION EQUILIBRIA [J].

BETTERIDGE, D ;

FREISER, H ;

FERNANDO, Q .

ANALYTICAL CHEMISTRY, 1963, 35 (03) :294-&

[4] Investigation of aqueous biphasic systems formed from solutions of chaotropic salts with kosmotropic salts (salt-salt ABS) [J].

Bridges, Nicholas J. ;

Gutowski, Keith E. ;

Rogers, Robin D. .

GREEN CHEMISTRY, 2007, 9 (02) :177-183

[5] PEO-[M(CN)5NO]x- (M = Fe, Mn, or Cr) interaction as a driving force in the partitioning of the pentacyanonitrosylmetallate anion in ATPS:: Strong effect of the central atom [J].

da Silva, Luis Henrique M. ;

Hespanhol da Silva, Maria C. ;

Francisco, Kelly R. ;

Cardoso, Marcus V. C. ;

Minim, Luis A. ;

Coimbra, Jane S. R. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (37) :11669-11678

[6] A novel micellar medium using triblock copolymer for cobalt determination [J].

da Silva, MCH ;

da Silva, LHM ;

Paggioli, FJ .

ANALYTICAL SCIENCES, 2005, 21 (08) :933-937

[7] Phase Compositions of Aqueous Two-Phase Systems Formed by L35 and Salts at Different Temperatures [J].

de Lemos, Leandro Rodrigues ;

Boggione Santos, Igor Jose ;

Rodrigues, Guilherme Dias ;

Dias Ferreira, Gabriel Max ;

Mendes da Silva, Luis Henrique ;

Hespanhol da Silva, Maria do Carmo ;

Maduro de Carvalho, Raquel Moreira .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2010, 55 (03) :1193-1199

[8] Recovery of copper from zinc leaching liquor using ACORGA M5640 [J].

Deep, Akash ;

Kumar, Parveen ;

Carvalho, Jorge M. R. .

SEPARATION AND PURIFICATION TECHNOLOGY, 2010, 76 (01) :21-25

[9] Phase equilibrium and insulin partitioning in aqueous two-phase systems containing block copolymers and potassium phosphate [J].

Haraguchi, LH ;

Mohamed, RS ;

Loh, W ;

Pessôa, PA .

FLUID PHASE EQUILIBRIA, 2004, 215 (01) :1-15

[10] Separation of Cd and Ni from Ni-Cd batteries by an environmentally safe methodology employing aqueous two-phase systems [J].

Lacerda, Vania Goncalves ;

Mageste, Aparecida Barbosa ;

Boggione Santos, Igor Jose ;

Mendes da Silva, Luis Henrique ;

Hespanhol da Silva, Maria do Carmo .

JOURNAL OF POWER SOURCES, 2009, 193 (02) :908-913

← 1 2 3 4 →