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Keywords: wastes, flotation , metal , leaching, ionic liquids 1. Introduction The metal activity has been the source of large volumes of that must be disposed and stored in special locations . Mine disposal include: dry-stacking of thickened …read more
Research Article A Cleaner for Waste as Paste Materials to Goafs Yuxi Liu ,1,2 Zhixiang Liu ,2 Keming Li,2 Sijia Deng ,2 and Longjun Dong 2 1Engineering Faculty, Monash University, Melbourne 3800, Australia 2School of Resources and Safety Engineering, Central South University, Changsha 410083, China Correspondence should be addressed to Longjun Dong [email protected]read more
In-situ leaching ISL, also known as solution mining, or in-situ recovery ISR in North America, involves leaving the ore where it is in the ground, and recovering the minerals from it by dissolving them and pumping the pregnant solution to the surface where the minerals can be recovered.read more
· Second, the older the mine, the greater the proportion of the target commodity that is likely to be left over, because many older had lower rates than today’s technology.read more
Morfopoulos reckons traditional placer are losing almost half of their in traditional which relies on mills to separate the from the ore and then traps the...read more
HDPF is a more expensive method of tailings disposal than pond storage, however it has many other benefits – not just environmental but it can significantly increase the stability of underground excavations by providing a means for ground stress to be transmitted across voids - rather than having to pass around them – which can cause mining induced seismic events like that suffered previously at the …read more
How the Global Standard Will Change the Way design, operate and manage their dams. The new global standard was just introduced last month and while the standard does not replace local or national government regulations, it’s a radical step forward for the industry.read more
· RST said these services, which aid the suppression of dust to treat and rehabilitate dams, are increasingly being sought by projects in Australia and beyond. "There currently is no cost alternative to crusting for the suppression of dust, other than revegetation," said RST operations and technical director David Handel.read more
are created as mined ore is processed through crushing, grinding and milling. Mined ore is moved to the milling circuit where the rock is reduced into sand and silt sized particles and then mixed with water and moved as slurry through the gold, silver and copper process. The valuable are separated from the rest ofread more
· The most effective extraction of copper 84 to >90% was achieved by the tailings at 45 °C, using a defined microbial consortium, where elemental sulfur was added to the tailings and the pH of leach liquors allowed to fall to ∼pH 1, at which point anaerobic conditions were imposed.read more
· Most opt for the cheaper ‘upstream ’ where the themselves are piled up, with more added to increase the height of the dam as operations continue. Dams built using the upstream are more likely to collapse because, once dried, the used to create the barrier become less dense and more sand ...read more
· US-based cleantech materials growth company Itronics has developed a Rock Kleen process that enables of silver and gold from silver-gold leach , through the combination of Rock Kleen liquid and conventional gold technologies. The …read more
· Dominion Diamond is selling its Ekati mine in the Northwest Territories to an entity controlled by DDJ Capital Management and Brigade Capital Management, as reported by .com. The firms will take over $70 million of Dominion Diamond’s debt in exchange for nearly all of the company’s assets, save for its 40-per cent stake in Rio Tinto’s Diavik mine.read more
The ability to separate minerals using techniques such as or dissolution is mineral-specific. Although anomalous concentrations of many byproduct critical minerals have been found in a variety of mill tailings, it is unclear if recovery of these elements is economically feasible on their own merits, or if recovery can offset environmental management costs, including mine closure.read more
· A study shows that measures taken following the breach at Boliden Apirsa’s lead and zinc mine have been effective in restoring the Guadiamar River. ... of the dam at the Los Frailes ...read more
most , more than 90 percent of the ore-grade material mined was processed, yielding mill with grains finer than beach sand and containing that either escaped or had too little value to recover. Other , such as retorts for mercury or heap-leach pads forread more
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