Industrial process to extract precious metals and copper from ores
Dump leaching is an industrial process to extract precious metals and copper from ores.[1]
Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is irrigated with a dilute cyanide solution that percolates through the ore to dissolve gold and silver. The solution containing gold and silver exits the base of the dump, is collected and precious metals extracted. The resultant barren solution is recharged with additional cyanide and returned to the dump.
This method of leaching is usually suitable for low grade ores because it is very low cost. However, it operates with slow kinetics and may take up about 1 to 2 years to extract 50% of the desired mineral.
Dumpleaching is an industrial process to extract precious metals and copper from ores. Dumpleaching is similar to heap leaching, however in the case...
Look up leaching in Wiktionary, the free dictionary. Leaching is the loss or extraction of certain materials from a carrier into a liquid (usually, but...
processing methods such as flotation, agitation, and vat leaching. Additionally, dumpleaching is an essential part of most copper mining operations and...
stacking before acid leaching. Copper is extracted by SX/EW. Leached ore is removed by bucket wheel excavator followed by secondary leaching. It is likely that...
to the extracting solution. The extraction is conducted by dumpleaching or heap leaching processes. Sodium cyanide is produced on a billion-ton/year...
preformed in dump bioleaching which instead relies on the bacteria already present in the rock. Heap bioleaching is a newer take on dumpleaching. The process...
into aqueous sulfuric acid, usually in a heap leaching or dumpleaching. The resulting pregnant leach solution is purified by solvent extraction (SX)...
A landfill site, also known as a tip, dump, rubbish dump, garbage dump, trash dump, or dumping ground, is a site for the disposal of waste materials. Landfill...
as a dump site for radioactive waste under the authority of the Atomic Energy Commission at a site known as the Farallon Island Nuclear Waste Dump. Most...
The Krejci Dump was a privately owned dump occupying 47 acres (19 ha) on several sites along Hines Hill Road near Boston Heights, Summit County, Ohio...
word bing is used. In North American English the term is mine dump or mine waste dump. The term "spoil" is also used to refer to material removed when...
The Dumping Ground (also informally referred to as The DG) is a British children's television drama series that focuses on the lives and experiences of...
Uchkuduk Deposit. Currently NMA's main activities are as follows: in-situ Leaching uranium mining and processing; mining and processing of gold ore of Kokpatas...
from the original on 2 May 2014. Retrieved 4 December 2013. Pihlak, A. "Leaching study of heavy and radioactive elements present in wastes discarded by...
the ground water and leached into lakes and streams in the surrounding area. The site has been identified as the worst toxic dump in the United States...
installation of a liner to prevent leaching; this became very common among companies. Numerous contaminants dumped in the landfill included chlorinated...
2002). "Nocardiopsis metallicus sp. nov., a metal-leaching actinomycete isolated from an alkaline slag dump". International Journal of Systematic and Evolutionary...
incinerator in 1907 as an alternative to the dump, to allay public concerns of disease and pollutants leaching to a nearby creek. The hill had grown to approximately...
leaching (57% of world production) or by conventional underground or open-pit mining of ores (43% of production). During in-situ mining, a leaching solution...
drove Healy to a secluded area, where he raped and murdered her before dumping her body. During the first half of 1974, female college students disappeared...
can have significant negative environmental consequences, including the leaching of iron, manganese, and aluminum residues into waterways and acid mine...
water levels in an adjacent log pond. A railway spur would be built to a log dump where logs might be rolled or hoisted off flat cars into the pond. Log ponds...
The third series of the British children's television series The Dumping Ground began broadcasting on 16 January 2015 on CBBC and ended on 8 December...