THE EXTRACTION OF GOLD(I) FROM CYANIDE SOLUTIONS BY THE PHOSPHINE-OXIDE-CYANEX-921

被引：40

作者：

ALGUACIL, FJ

CARAVACA, C

COBO, A

MARTINEZ, S

机构：

[1] Centro Nacional de Investigaciones Metalúrgicas (C.S.I.C.), Avda. de Cregorio del Amo, 8, Ciudad Universitaria

来源：

HYDROMETALLURGY | 1994年 / 35卷 / 01期

关键词：

D O I：

10.1016/0304-386X(94)90016-7

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The extraction of gold from cyanide solutions by the commercially available phosphine oxide, Cyanex 921, is described. The effect of several variables, such as equilibration time, temperature, diluent aromaticity, extractant concentration and the ionic strength of the aqueous phase is discussed. An IR spectroscopy study showed that the Au (CN)2- complex and the extractant did not form a discrete compound, supporting a solvating mechanism of extraction. Results showed that the phosphine oxide could effectively extract gold(I) cyanide from alkaline solutions. Stripping was accomplished by low ionic strength aqueous solutions and enhanced by high temperatures.

引用

页码：41 / 52

页数：12

共 14 条

[1] FOURIER-TRANSFORM INFRARED SPECTROPHOTOMETRIC STUDY OF ADSORBED AUROCYANIDE SPECIES ON ACTIVATED CARBON [J].

ADAMS, MD .

HYDROMETALLURGY, 1992, 31 (1-2) :111-120

[2] STUDY OF THE KAU (CN)2-AMINE AMBERLITE LA-2 EXTRACTION EQUILIBRIUM SYSTEM [J].

ALGUACIL, FJ ;

HERNANDEZ, A ;

LUIS, A .

HYDROMETALLURGY, 1990, 24 (02) :157-166

[3] GOLD (I) EXTRACTION EQUILIBRIUM IN THE SYSTEM KAU (CN)2-PRIMENE JMT SULFATE-XYLENE [J].

CARAVACA, C ;

ALGUACIL, FJ .

HYDROMETALLURGY, 1992, 31 (03) :257-263

[4]

Choppin G., 1992, PRINCIPLES PRACTICES, P357

[5]

DIAZAROCAS P, 1993, MEM SCI REV META MAY, P717

[6]

Mooiman M.D., 1984, MINER METALL PRO AUG, P153

[7] THE CHEMISTRY OF GOLD SOLVENT-EXTRACTION FROM ALKALINE CYANIDE SOLUTION BY SOLVATING EXTRACTANTS [J].

MOOIMAN, MB ;

MILLER, JD .

HYDROMETALLURGY, 1991, 27 (01) :29-46

[8] THE CHEMISTRY OF GOLD SOLVENT-EXTRACTION FROM CYANIDE SOLUTION USING MODIFIED AMINES [J].

MOOIMAN, MB ;

MILLER, JD .

HYDROMETALLURGY, 1986, 16 (03) :245-261

[9]

NAKAMOTO N, 1978, INFRARED RAMAN SPECT, P335

[10] MODERN TRENDS IN GOLD PROCESSING - OVERVIEW [J].

PRASAD, MS ;

MENSAHBINEY, R ;

PIZARRO, RS .

MINERALS ENGINEERING, 1991, 4 (12) :1257-1277

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