Zobrazeno 1 - 10
of 61
pro vyhledávání: '"G. Ofori-Sarpong"'
Publikováno v:
Ghana Mining Journal. 20:34-44
Cyanide, a carbon-nitrogen radical, is a major building block in many industries including pharmaceuticals, petrochemical and gold processing. In the gold extraction industry, cyanide has been the universal lixiviant for over a century due to better
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b2706f78a30e39e1af889c12bef2930
https://doi.org/10.4314/gm.v20i1.4
https://doi.org/10.4314/gm.v20i1.4
Publikováno v:
Ghana Mining Journal; Vol. 21 No. 2 (2021); 46-54
The unsafe disposal of heavy metals is a serious environmental problem all over the world as it has devastating effects on plant biodiversity as well as animal and human health. Contamination can be caused by effluents from industries and exposure of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e15fae5e9a1277716cda8b35e2d09f91
https://www.ajol.info/index.php/gm/article/view/227555
https://www.ajol.info/index.php/gm/article/view/227555
This paper presents a study on characterisation of refractory ore, biooxidation feed and product, and cyanidation tailings with the aim of understanding the causes of excessive continuous frothing, incomplete sulphide oxidation, high reagent consumpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81c5857caade8e4a9dee42997ec9b1eb
https://hdl.handle.net/11541.2/142659
https://hdl.handle.net/11541.2/142659
Publikováno v:
Ghana Mining Journal; Vol 18, No 1 (2018); 65-71
A typical challenge encountered on most gold processing plants during leaching of refractory ores is the reduction in recovery due to the presence of carbonaceous matter which preg-robs dissolved gold, thus reducing overall recovery. To reduce preg-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1844d93ee65883affe7c9a5322dd5852
https://doi.org/10.4314/gm.v18i1.8
https://doi.org/10.4314/gm.v18i1.8
Autor:
Azikiwe Peter Onwualu, Jean Baptiste Habinshuti, Himanshu Tanvar, Gbetoglo Charles Komadja, Adelena R. Adetunji, Brajendra Mishra, G. Ofori-Sarpong, Jeanne Pauline Munganyinka, Janvier Mukiza
Publikováno v:
Results in Engineering, Vol 11, Iss, Pp 100248-(2021)
In this work, mineralogical and physical characterization of low-grade tantalum-tin ore-samples from Ntunga and Kamonyi of Rwanda were carried out using various techniques. The ore-samples were classified as low-grade and non-radioactive ores as they
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::210af04b69bd94a9883abe59796ac210
https://doi.org/10.1016/j.rineng.2021.100248
https://doi.org/10.1016/j.rineng.2021.100248
Publikováno v:
Ghana Mining Journal; Vol 17, No 2 (2017); 56-65
In the recovery of gold from refractory gold ores, pretreatment is required to decompose sulphides and liberate occluded gold before cyanidation, and to deactivate carbonaceous matter and prevent it from adsorbing dissolved gold. Until the past three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b94842da93d7a846adcfe05efc29180d
https://doi.org/10.4314/gm.v17i2.8
https://doi.org/10.4314/gm.v17i2.8
Publikováno v:
Hydrometallurgy. 168:76-83
Carbonaceous matter in refractory gold ore is known to be one of the primary causes of gold recovery loss. Model experiments were conducted to simulate the bio-modification of carbonaceous matter using powdered activated carbon (PAC) as a surrogate a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6ab69f9d53370956c9115d8c3e0b6ce
https://doi.org/10.1016/j.hydromet.2016.08.003
https://doi.org/10.1016/j.hydromet.2016.08.003
Publikováno v:
Ghana Mining Journal; Vol 19, No 2 (2019): Ghana Mining Journal December Issue; 70-76
Attractiveness of fiscal regime has become more important in oil and gas investment decision than the rather geological prospectivity of the province. The terms and conditions contained in the fiscal system influence the investor’s evaluation of pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f446b5d678b0a90e1b0ffac9f9351ff0
https://www.ajol.info/index.php/gm/article/view/193043
https://www.ajol.info/index.php/gm/article/view/193043
Publikováno v:
Ghana Mining Journal; Vol 19, No 1 (2019); 59-65
Many gold processing plants are experiencing challenges as mining pits are becoming deeper, rocks are getting harder and more complex polymetallic and refractory ores are being encountered. The variations in the characteristics of ores lead to deviat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a50585aca70909c25bd46c6de5f898fa
https://www.ajol.info/index.php/gm/article/view/189580
https://www.ajol.info/index.php/gm/article/view/189580
Autor:
R.K. Amankwah, G. Ofori-Sarpong
Publikováno v:
New Frontiers in Natural Resources Management in Africa ISBN: 9783030118563
Acid Mine Drainage (AMD) is one of the major threats confronting mining companies worldwide, due to the ability of the acidic water to contaminate water bodies and cause ecological destruction, adversely affecting flora and fauna even years beyond th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc4c6099ce6456e881f8cb04dde3db53
https://doi.org/10.1007/978-3-030-11857-0_6
https://doi.org/10.1007/978-3-030-11857-0_6