Pretreatment of refractory gold ore by curing with concentrated sulfuric acid

Liu, Yisa; Li, Kang; Yin, Zichen; Dong, Jiong; Xu, Lili; Ma, Ruixin; Li, Shina

doi:10.1007/s42461-024-00930-6

Cited by 1 publication

(1 citation statement)

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“…However, this also poses environmental challenges. When sulfide minerals are exposed to air and water during mining operations or in tailing storage facilities, they can oxidize, producing sulfuric acid and releasing metals into the environment [71]. Pyrite, often called "fool's gold", is one of the most common sulfide minerals found on Earth and is widely distributed in various geological environments.…”

Section: Mineralogy Of Mine Tailingsmentioning

confidence: 99%

A Comprehensive Review on Mine Tailings as a Raw Material in the Alkali Activation Process

Manaviparast,

Miranda,

Pereira

et al. 2024

Applied Sciences

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The mining industry generates vast quantities of mine tailings on an annual basis. However, due to their limited economic value, a significant portion of these tailings are deposited close to mining sites, often underwater. The principal environmental apprehensions associated with mine tailings revolve around their elevated levels of heavy metals and sulfidic minerals. The oxidation of these sulfidic minerals can lead to the formation of acid mine drainage, which in turn releases heavy metals into nearby water systems. The effective management of tailing dams requires substantial financial investments for their construction and meticulous control. Consequently, a pressing need exists for stable, sustainable, and economically viable management approaches. One promising method for addressing mine tailings is through alkali activation, a technique that serves as a stabilization process. This approach yields robust, concrete-like structures by utilizing raw materials abundant in aluminum and silicon, which conveniently constitute the primary components of mining residues. This comprehensive review outlines the research on utilizing alkali activation for mine tailings. It delves into the reactivity and chemical attributes of diverse minerals. Numerous mine tailings exhibit an inadequate level of reactivity under alkaline conditions, so various pre-treatment methodologies and their impacts on mineralogy are meticulously explored.

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Section: Mineralogy Of Mine Tailingsmentioning

confidence: 99%