The phrase "gold extraction" is correct and usable in written English.
It can be used in contexts related to mining, metallurgy, or environmental science, specifically when discussing the process of obtaining gold from ore or other materials.
Example: "The company has developed a new method for gold extraction that minimizes environmental impact."
Alternatives: "gold recovery" or "gold mining process."
Gold extraction was related to that of arsenic removal.
A cyanide solution, encountered in the gold extraction industry, was employed as electrolyte.
The contribution of reagent interactions to gold extraction is statistically insignificant.
In more than 55 developing countries, 10 million to 15 million small-scale miners, many legal, depend on rudimentary forms of gold extraction for their livelihood.
Ideas pitched by contestants include a machine to minimise the dangers of mercury in gold extraction, software to detect breast tissue abnormalities and manufacturing products using water hyacinths.
The mining of alluvial deposits and, later, lode or vein deposits required crushing prior to gold extraction, and this consumed immense amounts of manpower.
Mining, gold-extraction plants, and processing plants recovering uranium and sulfuric acid as a by-product from gold ore form the basis of the economy.
The gold-extraction industry was reborn in the 1980s after the opening of the St . Ivesmine near Lake Lefroy, which became one of Australia's leading gold producers.
The company was off and running, building a large gold-extraction operation in Lubec, Maine, far away from the watchful eyes of their investors.
Gold miners are at risk of Hg poisoning (Baeuml et al. 2011; Bose-O'Reilly et al. 2010a, 2010b; Drasch et al. 2001; Harari et al. 2012; Lettmeier et al. 2010), and Hg pollution from the gold-extraction process may also affect the health of other persons living close to mining areas (Bose-O'Reilly et al. 2010a, 2010b).
While only 23 and 29% gold extraction was achieved in the as received mineral with cyanide and thiosulfate leaching, respectively, up to 81% was obtained with the pretreatments.
