Results 101 to 110 of about 9,725 (229)

Precise detection of coal and gangue based on natural γ-ray

open access: yesScientific Reports
To address the technical limitations of automatic coal and gangue detection technology in fully mechanized top coal caving mining operations, the low radiation level radioactivity measurement method is utilized to assess the degree of coal-gangue mixture
Ningbo Zhang   +5 more
doaj   +1 more source

Estimation of the wear rate associated with ball mill of Mahd Ad Dahab Gold Mine, Saudi Arabia (KSA) [PDF]

open access: yes, 2018
Purpose. This study aims to estimate the wear of the middle chrome grinding balls in both dry and wet grinding media. The selected ball mill for this study is located at Mahd Ad Dahab Gold Mine, Saudi Arabia. Methods.
Abdelhaffez, G
core   +1 more source

Environmental impacts of mining the giant Panzhihua V-Ti magnetite deposit, SW China [PDF]

open access: yes, 2001
in http://www.lpi.usra.edu/meetings/gold2001/pdf/3530 ...
Li, YC   +8 more
core  

Breedon Hill [PDF]

open access: yes, 2013
Breedon Hill forms one of the most prominent features in the landscape of north-west Leicestershire, standing up 50 m above the surrounding ground. That it has been a major landmark throughout recorded history is suggested by its name, which is derived ...
Ambrose, Keith
core  

Feasibility study on the microbial separation of iron from slime [PDF]

open access: yes, 2011
Bio-mineral processing is the generic term that describes the processing of metal containing ores, concentrator tailings, newly mined run-of-the-mine (ROM) material, and intermediate to high-grade ores using (micro-) biological technology.
N, Rohini
core  

Application of GIS Based Ecological Vulnerability Evaluation in Environmental Impact Assessment of Master Plan of Coal Mining Area [PDF]

open access: yes, 2013
Coal accounts for more than 70% of total energy consumption in China. Kinds of ecological problems resulting from coal mining have become increasingly serious, which directly threaten regional ecological security and people's normal production and ...
Liao, Xueqin, Li, Wei, Hou, Jinxiang
core   +1 more source

Comparative Test For the Upgrading of Lead in Sabon Layi Lead-Zinc Ore (Alkaleri Local Government Area, Bauchi State), Using Gravity and Froth Flotation Beneficiation Methods [PDF]

open access: yes, 2016
This research work deals with the upgrading of lead in Sabon Layi lead-zinc ore using gravity and froth flotation beneficiation methods. Analysis of the chemical composition reveals that this crude ore contains 38.76%lead and other related minerals such ...
Abere, D. V. (Dare)   +5 more
core  

Interrelationship of hydrology, microbial colonisation and hydrometallurgy in a simulated chalcopyrite heap leach [PDF]

open access: yes, 2008
Includes bibliographical references (leaves 104-115).Chalcopyrite is the most abundant primary copper sulphide mineral found worldwide. As copper grades of ores available for extraction decrease, heap bioleaching is gaining interest as a potential ...
Spurr, Nicholas Robert Louis
core  

Application and prospect of coal gangue slurry filling technology

open access: yesMeitan kexue jishu
In order to realize in-situ, green and large-scale disposal of coal gangue, coal gangue slurry filling technology, as a new filling technology, has been rapidly developed and applied in recent years.
Lei ZHU   +6 more
doaj   +1 more source

Study on recognition of coal and gangue based on multimode feature and image fusion

open access: yesPLoS ONE, 2023
Aiming at the problems of low accuracy of coal gangue recognition and difficult recognition of mixed gangue rate, a coal rock recognition method based on modal fusion of RGB and infrared is proposed. A fully mechanized coal gangue transportation test bed
Lijuan Zhao   +6 more
doaj  

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