Preliminary Tests for Precious Metals Recovery from Sideritic Waste

2016 ◽  
Vol 254 ◽  
pp. 182-187
Author(s):  
Letiția Cânda ◽  
Erika Ardelean ◽  
Marius Ardelean ◽  
Laura Strugariu
Keyword(s):  
Trace Elements ◽  
Chemical Analysis ◽  
Experimental Work ◽  
Precious Metals ◽  
Gold Recovery ◽  
Future Directions ◽  
Aqua Regia ◽  
Work Related ◽  
Metals Recovery ◽  
Precious Metals Recovery

Waste deposited in ponds can also contain precious metals, as trace elements. Preliminary studies have shown, by chemical analysis, the presence of gold and silver in waste steel. This paper presents some preliminary aspects of experimental work related to gold recovery opportunities from sideritic waste, Teliuc type - stored as a pond and future directions in research. There were two distinct phases considered: gravimetric concentration and removal of three layers from the experimental material, respectively, the treatment of the concentrate with “aqua regia”.

Marine Fungi as Potential Eco-Sustainable Resource for Precious Metals Recovery from Electronic Waste

2021 ◽  
Author(s):  
Christian Galasso ◽  
Xabier Lekube ◽  
Ibon Cancio ◽  
Antonio Dell’Anno ◽  
Christophe Brunet ◽  
...  
Keyword(s):  
Marine Fungi ◽  
Electronic Waste ◽  
Precious Metals ◽  
Metals Recovery ◽  
Precious Metals Recovery

Precious metals recovery from pressure oxidized Porgera concentrates

1986 ◽  
Vol 3 (4) ◽  
pp. 208-215
Author(s):  
D. R. Weir ◽  
P. C. Robinson ◽  
J. A. King
Keyword(s):  
Precious Metals ◽  
Metals Recovery ◽  
Precious Metals Recovery

Gold Recovery from WEEE by Chlorine System

2013 ◽  
Vol 330 ◽  
pp. 123-125 ◽  
Author(s):  
Mahtab Assadian ◽  
Mohd Hasbullah Idris ◽  
Seyed Morteza Ghaffari Shahri ◽  
Babak Gholampour
Keyword(s):  
Economic Growth ◽  
Nitric Acid ◽  
Technological Innovation ◽  
Reaction Temperature ◽  
Precious Metals ◽  
Gold Recovery ◽  
Aqua Regia ◽  
Market Expansion ◽  
The World ◽  
The Revolution

This work compared the effect of nitric acid and chloride acid systems on dissolving precious metals of Electrical and Electronic Equipments (EEE). As a result of the revolution of informatics technology, the production of EEE is rapidly increasing in the world. Due to economic growth, technological innovation and market expansion of EEE there is a significant increase in waste of EEEs (WEEE) that presents a new environmental challenge.The results show that the best recovery of gold can be obtained via aqua regia (3HCl=HNO3), with concentration of 1/10 gr/L. The reaction temperature has little effect on the extent of extraction.

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