THE RECOVERY OF ZINC FROM THE LEACH LIQUORS OF THE CENIM-LNETI PROCESS BY SOLVENT-EXTRACTION WITH DI(-2-ETHYLHEXYL) PHOSPHORIC-ACID

被引：52

作者：

AMER, S ^{[1
]}

FIGUEIREDO, JM ^{[1
]}

LUIS, A ^{[1
]}

机构：

[1] INST NACL ENGN & TECHNOL IND,LISBON,PORTUGAL

来源：

HYDROMETALLURGY | 1995年 / 37卷 / 03期

关键词：

D O I：

10.1016/0304-386X(94)00040-A

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The recovery and purification of zinc from the leach liquors of the CENIM-LNETI process is performed in a countercurrent arrangement with 0.6 M (20% v/v) D2EHPA in a kerosene type diluent modified with 8% (v/v) isodecanol. The process includes 2 extraction, 2 scrubbing, 3 water washing and 3 stripping stages. Some co-extraction of minor elements occurs, calcium being the metal most co-extracted. A separate batch co-extraction study, including Ca, Cu, ph, Mg, Cd, Co, Ni and Hg in the presence of Zn, has been made. Impurity removal was very efficient and only very low contamination in the high zinc loaded organic phase and pregnant electrolyte was detected.

引用

页码：323 / 337

页数：15

共 15 条

[1]

AJAWIN LA, 1983, CHEM ENG RES DES, V61, P62

[2]

AMER S, 1994, REV METAL MADRID, V30, P27

[3] MODELING OF SOLVENT-EXTRACTION EQUILIBRIA OF ZN(II) FROM SULFATE-SOLUTIONS WITH BIS-(2-ETHYLHEXYL)-PHOSPHORIC ACID [J].