Silver cementation from thiocyanate solutions by magnesium

被引:10
作者
Kuntyi, O. I. [1 ]
Zozula, G. I. [1 ]
Bukliv, R. L. [1 ]
Korniy, S. A. [2 ]
机构
[1] Lviv Polytech Natl Univ, Inst Chem, UA-79013 Lvov, Ukraine
[2] NAS Ukraine, Karpenko Phys Mech Inst, UA-79060 Lvov, Ukraine
关键词
Cementation; Silver; Magnesium; Thiocyanate; SEM images; GOLD CEMENTATION; COPPER CEMENTATION; THIOSULFATE; CYANIDE; ZINC; ALUMINUM; KINETICS; MORPHOLOGY; IRON;
D O I
10.1179/1879139512Y.0000000029
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The cementation of silver on rotating magnesium disc from 0.005-0.02M thiocyanate solution was studied. It was established that the process proceeded with a high rate in the absence of the induction period. Metal recovery was >99%. The formation of dispersed porous deposits and the dependence of their structures on the initial concentration of silver ions were shown using SEM. The cementation product is silver powders with purity >= 99.9 mass-%. Consumption of magnesium is 0.15-0.2 g magnesium in account of 1 g of obtained silver.
引用
收藏
页码:2 / 6
页数:5
相关论文
共 22 条
[1]   EFFECTS OF KINETIC VARIABLES ON STRUCTURE OF COPPER-DEPOSITS CEMENTED ON PURE ALUMINUM DISKS - SCANNING ELECTRON-MICROSCOPIC STUDY [J].
ANNAMALAI, V ;
HISKEY, JB ;
MURR, LE .
HYDROMETALLURGY, 1978, 3 (02) :163-180
[2]   An electrochemical study of copper cementation of gold(I) thiosulfate [J].
Choo, WL ;
Jeffrey, MI .
HYDROMETALLURGY, 2004, 71 (3-4) :351-362
[3]   Fundamental considerations on the mechanisms of silver cementation onto zinc particles in the Merril-Crowe process [J].
Gamboa, GV ;
Noyola, MM ;
Valdivieso, AL .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 282 (02) :408-414
[4]   Alternatives to cyanide in the gold mining industry: what prospects for the future [J].
Hilson, Gavin ;
Monhemius, A. J. .
JOURNAL OF CLEANER PRODUCTION, 2006, 14 (12-13) :1158-1167
[5]   Kinetics of gold cementation on copper in ammoniacal thiosulfate solutions [J].
Hiskey, JB ;
Lee, JH .
HYDROMETALLURGY, 2003, 69 (1-3) :45-56
[6]   Kinetics and deposit morphology of gold cemented on magnesium, aluminum, zinc, iron and copper from ammonium thiosulfate-ammonia solutions [J].
Karavasteva, M. .
HYDROMETALLURGY, 2010, 104 (01) :119-122
[7]   Thiocyanate solutions in gold technology [J].
Kholmogorov, AG ;
Kononova, ON ;
Pashkov, GL ;
Kononov, YS .
HYDROMETALLURGY, 2002, 64 (01) :43-48
[8]   Recovery of silver from thiosulfate and thiocyanate leach solutions by adsorption on anion exchange resins and activated carbon [J].
Kononova, O. N. ;
Kholmogorov, A. G. ;
Danilenko, N. V. ;
Goryaeva, N. G. ;
Shatnykh, K. A. ;
Kachin, S. V. .
HYDROMETALLURGY, 2007, 88 (1-4) :189-195
[9]   Nature of the silver precipitation obtained by cementation from thiosulphate solutions [J].
Kuntyi, O. ;
Zozulya, G. ;
Saldan, I. ;
Kree, V. ;
Korniy, S. ;
Stel'makhovych, B. .
CENTRAL EUROPEAN JOURNAL OF CHEMISTRY, 2011, 9 (01) :180-184
[10]   Silver cementation with magnesium in cyanide solutions [J].
Kuntyi, O. I. ;
Zozulya, G. I. ;
Kurilets, O. G. .
RUSSIAN JOURNAL OF APPLIED CHEMISTRY, 2007, 80 (02) :189-192