mining antimony quality

Metalloid co-contamination such as arsenic (As) and antimony (Sb) in soils has posed a significant threat to ecological balance and human well-being. In this study, a novel magnetic graphene-loaded biochar gel (FeBG) was developed, and its remediation potential for the reclamation of AsSb spoiled so …

Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization roasting—reduction smelting or direct reduction …

The Xikuangshan Sb mine is an active mine whose mining history traces back to 1897 (Wen et al. 2016).Stibnite (Sb 2 S 3) is the main ore mineral, occurring with pyrite, arsenopyrite, pyrrhotite, and sphalerite (Wen et al. 2016).Hundreds of smelting plants, dense residentials, and a large amount of solid mining waste such as smelting …

Thus, water quality within the Kantishna Hills region of Denali is of concern due to the presence of antimony-rich mineral deposits and the legacy mining operations that exposed them to oxidation. Each red dot on the map indicates a site where water and stream sediment were collected from Stampede Creek and its tributaries, both up- and ...

1. Background. Antimony is a silvery, white, brittle, crystalline solid that exhibits poor conductivity of electricity and heat. It has an atomic number of 51, an atomic weight of 122 and a density of 6.697 kg/m 3 at 26 °C. Antimony metal, also known as 'regulus', melts at 630 °C and boils at 1380 °C.Antimony and the natural sulfide of …

Mineralization and historical mining of stibnite (antimony sulfide), tungsten, gold, silver, and mercury in the headwaters of the East Fork of the South Fork Salmon River (EFSFSR) near the former town of Stibnite in central Idaho resulted in water-quality impairments related to mercury, antimony, and arsenic. Additionally, mining-related

The physical and chemical properties of different soils (mining waste dumps, flotation tailings, and smelting slag) and depths (0-20 cm, 40-60 cm, and 80-100 cm) were compared. The results showed that antimony (Sb) and arsenic (As) were the main pollutants, and their concentrations were 5524.7 mg/kg and 3433.7 mg/kg, respectively.

The results of ecological risk assessment showed that the antimony mining area was seriously polluted by Sb, As, Pb, and Cd, and had strong ecological risk, and Sb and Cd were the most important pollution factors, which indicated that the pollution of Sb and Cd should be a major concern of relevant departments of environment and health. ...

Antimony. A native element, antimony metal is extracted primarily from stibnite, which contains 72 percent antimony and 28 percent sulfur. Stibnite is mined in only a few countries, with China being its largest producer. Antimony is used for many technological and industrial purposes. Antimony is used as a hardening alloy for lead, especially ...

China is the largest antimony resource globally. The mining and smelting of antimony will inevitably have a significant impact on the surrounding and downstream farmlands of the mining area, Therefore, it is necessary to understand the pollution characteristics of antimony and evaluate its potential environmental risks. In this paper, …

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The exposure concentrations obtained from published literature underwent quality assurance and quality control procedures. The data included Sb concentrations from basins near Sb mining areas and far from these areas, both in China and in other countries. ... Antimony, arsenic and mercury in the aquatic environment and fish in a …

ANTIMONY. (Data in metric tons of contained antimony unless otherwise noted) Domestic Production and Use: In 2021, no marketable antimony was mined in the United States. …

The mining and smelting of antimony will inevitably have a significant impact on the surrounding and downstream farmlands of the mining area, Therefore, it is …

Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization roasting—reduction smelting or direct reduction smelting. The performance of most of the pyro-processes is very sensitive to concentrate type and grade. Therefore, technology …

The main objectives of this study are: (1) to assess the soil resilience level at the XKS antimony smelting site using the modified NPI method based on the MDS model, which …

Mining and smelting activities of the world largest Antimony (Sb) mine which is located at Xikuangshan area of Hunan Province, China, constitute important sources of Sb pollution throughout the ...

Antimony mining activities can result in serious contamination of soil by heavy metals, which represents a risk to human health. In this study, the contamination and sources of 14 heavy metals, and their risks to both ecosystem and public health from these metals at an antimony mining site in Guizhou Province in China were explored. The …

The only major antimony deposit in North America is located in the Stibnite-Yellow Pine Mining District of central Idaho. This site is the largest reserve in the nation and is expected to supply roughly 35% of U.S. antimony demand on average for the first six years of production.

Pollutants derived from antimony (Sb) mining can easily cause pollution of surrounding water bodies. However, qualitative source analysis of river pollution is …

The pollution of heavy metals and their harm to human health and the ecological environment have caused widespread concern. In this research, we collected Qinglong antimony mine tailings (8-meter deep) and then analyzed the content changes, geochemical behavior, and ecological risk assessment of 7 heavy metals (Sb, As, Cr, …

Introduction. The metalloid antimony (Sb) is an element of growing environmental concern. Its rapid growth in industrial use (e.g. flame retardants, alloys, pigments, semiconductors) is associated with an increased and often uncontrolled release of Sb compounds into the environment, e.g. mining and smelting activities, incineration …

Area surrounding a gold–antimony mine: A horizon samples up to 7.5 km from tailing dam (in prevailing wind direction)11.9–710: Previous mining activities: Low levels of water–soluble Sb: 27.7–15,100: Previous mining activities: Shoots and leaf accumulation for 3 species of up to 1160 and 1370 mg kg − 12.5–237: Previous mining …

The antimony mine area in Lengshuijiang City, Hunan Province, is a nonferrous metal mining area. Its geographical coordinates range from (N27°45′, E111°29′).The total area of the mining area is 63 km 2, located in the central region of Hunan Province.It has a subtropical monsoon climate characterized by mild temperatures and abundant rainfall.

Mining of stibnite (antimony sulfide), tungsten, gold, silver, and mercury near the town of Stibnite in central Idaho has left a legacy of trace element contamination in the East Fork of the South Fork of the Salmon River (EFSFSR) and its tributaries. Concentrations of arsenic, antimony, and mercury frequently exceed human health …

Deep in the Salmon River Mountains, an Idaho mining company, Perpetua Resources, is proposing a vast open-pit gold mine that would also produce 115 million pounds of antimony — an element that ...

DOI: 10.1016/j.scitotenv.2019.136354 Corpus ID: 211101034; Antimony and arsenic speciation, redox-cycling and contrasting mobility in a mining-impacted river system. @article{Johnston2020AntimonyAA, title={Antimony and arsenic speciation, redox-cycling and contrasting mobility in a mining-impacted river system.}, author={Scott …

Antimony mining areas generate a large amount of wastewater containing complex heavy metals, which poses a threat to the health of residents and surrounding …

MIT's accidental smelting discovery unlocks the potential of antimony. The ancient Egyptians used it in black eye make-up and alchemists marvelled at antimony's semi-metallic properties. Now, a groundbreaking smelting technique could open up new opportunities for antimony, as well as other metals. Nnamdi Anyadike …

Xikuangshan (XKS) is the world's largest antimony mining region, and its exploitation for hundreds of years has also resulted in serious soil erosion, fragile ecology, contaminated water, and ...

Monitoring the ecological quality of mining area can better understand the destruction of ecological environment in mining area, to specify the appropriate restoration strategy. ... Remote sensing dynamic monitoring and evaluation of ecological environment quality in Xikuangshan antimony mining area. Environ. Sci. Technol., 43 (2020), pp. …

According to Perpetua's January 2021 FS, the project has total proven and probable mineral reserves of 104.6 million metric tonnes (Mt) grading 1.43 grams per tonne gold. The mineral reserves...

Soil samples from an abandoned Sb mining site were tested under laboratory conditions. Two distinct (organic and mineral) soil layers were incubated with each of the amendments (2% w/w application rate) at 50% and water holding capacity (WHC) of the soils for 10 weeks, and subsequently extracted with demineralised water …

A 2020 feasibility study on the project showed proven and probable mineral reserves totalling 104.6 million tonnes grading 1.43 g/t gold and 0.06% antimony, …

Air quality tests indicate that, while some areas with active mining enterprises enjoy reasonable air quality (e.g., ... [241,242,243,244,245,246] have recorded elevated Sb levels in the blood and urine of workers exposed to antimony in mining and industrial settings. Given that the only form of exposure in these studies involved …

Mineralization and historical mining of stibnite (antimony sulfide), tungsten, gold, silver, and mercury in the headwaters of the East Fork of the South Fork Salmon River (EFSFSR) near the former town of Stibnite in central Idaho resulted in water-quality impairments related to mercury, antimony, and arsenic. Additionally, mining-related disturbances …

Antimony Mining. +86. [email protected] Inquire Now. Description. A native element, antimony metal is extracted primarily from stibnite, which contains 72 percent antimony and 28 percent sulfur. Stibnite is mined in only a few countries, with China being its largest producer. Antimony is used for many technological and industrial ...