Role of Bacteria in the Alteration of Sulfide Minerals

JOM ◽  
1961 ◽  
Vol 13 (5) ◽  
pp. 353-356 ◽  
Author(s):  
E. E. Malouf ◽  
J. D. Prater
Keyword(s):  
Sulfide Minerals

scholarly journals Relationship between Surface Characteristics and Floatability in Representative Sulfide Minerals: Role of Surface Oxidation

2017 ◽  
Vol 58 (7) ◽  
pp. 1069-1075 ◽  
Author(s):  
Gilsang Hong ◽  
Junhyun Choi ◽  
Yosep Han ◽  
Kwang-Suk Yoo ◽  
Kwanho Kim ◽  
...  
Keyword(s):  
Surface Oxidation ◽  
Surface Characteristics ◽  
Sulfide Minerals

Study on the Role of Quartz in the Bio-Oxidation of Sulfide Minerals From Mine Solid Waste

2021 ◽  
Author(s):  
Liuqing Li ◽  
Senlin Tian ◽  
Ying Li ◽  
Jiayao Li ◽  
Jianhong Huang ◽  
...  
Keyword(s):  
Solid Waste ◽  
Sulfide Minerals

The role of sulfide minerals in the genesis of groundwater with elevated geogenic arsenic in bedrock aquifers from western Quebec, Canada

2017 ◽  
Vol 474 ◽  
pp. 33-44 ◽  
Author(s):  
Raphaël Bondu ◽  
Vincent Cloutier ◽  
Mostafa Benzaazoua ◽  
Eric Rosa ◽  
Hassan Bouzahzah
Keyword(s):  
Sulfide Minerals ◽  
Bedrock Aquifers ◽  
Geogenic Arsenic

Role of biogenic thiols in the solubility of sulfide minerals

1988 ◽  
Vol 73 (1-2) ◽  
pp. 135-141 ◽  
Author(s):  
Damian Shea ◽  
William A. MacCrehan
Keyword(s):  
Sulfide Minerals

scholarly journals The Role of Solar Energy (UV-VIS-NIR) as an Assistant for Sulfide Minerals Leaching and Its Potential Application for Metal Extraction

Minerals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 828
Author(s):  
Orlando Yepsen ◽  
Eugenia Araneda ◽  
Rodrigo Yepsen ◽  
Humberto Estay
Keyword(s):  
Energy Consumption ◽  
Solar Energy ◽  
Potential Application ◽  
Near Infrared ◽  
Renewable Energy Sources ◽  
Sulfide Minerals ◽  
Metal Extraction ◽  
Future Application ◽  
Processing Route

The mining industry is facing emerging challenges as a result of the increase in energy consumption and environmental demands. These facts have promoted the use of renewable energy sources, such as wind, geothermal and, mainly, solar energy. This paper discusses the role of solar energy (UV-VIS-NIR) in leaching processes, evaluating its potential application in metal extraction from sulfide minerals, based on photochemical mechanisms that promote the regeneration of ferric iron or the so called ferrous iron cycling. The present paper discusses the possibility that ultraviolet, visible light and near infrared irradiation (e.g., sunlight provided) can assist the leaching processes in two main ways: by the oxidation of sulfide minerals through in-situ generated Fenton-like reactions, and by the photochemical activation of semiconductor minerals that contain transition metals (Fe, Cu, and Cr, among others). Thus, this paper provides theoretical support to move towards the future application of photoleaching, which consist of a leaching process assisted by UV, VIS, and NIR irradiation. This technology can be considered a promising mineral processing route, using direct photochemical solar energy that can reduce the energy consumption (electricity, fuels) and the environmental impact, opening an opportunity for an alternative method of metal extraction from sulfide ores.

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