Crystallization and thermal stability effects on tailings glass-ceramics by various heat treating processes

Xu, Wence; Shen, Kexuan; Cao, Zhi-Hao; Liu, Fang; Zhang, Yuxuan; Zhang, Tiezhu; Wu, Nannan; Ouyang, Shunli

doi:10.1016/j.matchemphys.2021.124334

Cited by 24 publications

(3 citation statements)

References 54 publications

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“…Mine solid waste can be used as aggregate for backfill material in the backfill mining method (as mentioned earlier) [41,42] and also as a valuable secondary resource. For example, it can be used as raw material in the production of building materials [43], glass ceramics [44,45], fertilizers [46], and other products. Proper management of tailings ponds and the reuse of mine solid waste can significantly reduce the environmental impact of mining activities and contribute to sustainable mining practices [47].…”

Section: Prospects For the Application Of Backfill Mining Methodsmentioning

confidence: 99%

Advantages of Backfill Mining Method for Small and Medium-Sized Mines in China: Safe, Eco-Friendly, and Efficient Mining

Zou

et al. 2023

Applied Sciences

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Despite China’s position as a global mining powerhouse, tens of thousands of small- and medium-sized mines (SM mines) within the country continue to pose potential safety hazards and environmental pollution risks. Only through the identification of suitable development paths can these mines improve their economic and environmental benefits, ultimately driving significant progress in China’s mining industry. Backfill mining, an environmentally friendly mining method, has emerged as a viable solution, offering the potential to ensure mining safety, reduce environmental pollution stemming from tailings stockpiles, and enhance ore resource recovery. This review article aims to provide researchers and readers with a comprehensive understanding of the current situation and challenges faced by SM mines in China. It explores the mining processes, technologies, and equipment commonly employed by these mines while addressing the specific problems and challenges they encounter. Furthermore, the article offers recommendations to guide the future development of SM mines. Additionally, the review examines the prospects and potential applications of backfill mining methods within the context of SM mines in China, emphasizing their role in promoting sustainable mining practices, environmental protection, and waste utilization. Ultimately, this comprehensive review article serves as a valuable resource, stimulating discourse and encouraging experts and scholars to further explore the unique challenges and opportunities associated with SM mines. By highlighting the significance of green mining practices, environmental protection, backfill mining, and waste utilization, the article aims to inspire innovative solutions and foster sustainable practices within the Chinese mining industry.

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Section: Prospects For the Application Of Backfill Mining Methodsmentioning

confidence: 99%

Advantages of Backfill Mining Method for Small and Medium-Sized Mines in China: Safe, Eco-Friendly, and Efficient Mining

Zou

et al. 2023

Applied Sciences

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“…When mine tailings are subjected to high temperatures during heat treatment, the intense thermal energy causes the minerals to change, leading to the generation of amorphous phases. The higher amorphous content means that a larger portion of the material is now in a highly reactive state, crucial for subsequent processing steps, like alkali activation [136].…”

Section: Heat Treatmentmentioning

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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“…The resultant glass-ceramics exhibited an excellent flexural strength of 219 MPa. 9 Similarly, Li and coworkers proposed to use the tungsten tailings as raw materials by the sintering crystallization technique to fabricate the glass-ceramics and realized high volume density (2.82 g cm −3 ), high Vickers hardness (6.3 GPa), and high bending strength (97.56 MPa). 10 Although the tailings glass-ceramics exhibit outstanding physical and chemical properties compared to the other natural stones, high melting temperature, and complex fabrication procedures still impede the further improvement of glass-ceramics.…”

Section: Introductionmentioning

confidence: 99%

Highly crystallized glass-ceramics from high content gold tailings via a one-step direct cooling method

Jiang

Ren

et al. 2022

RSC Adv.

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Crystallization and thermal stability effects on tailings glass-ceramics by various heat treating processes

Cited by 24 publications

References 54 publications

Advantages of Backfill Mining Method for Small and Medium-Sized Mines in China: Safe, Eco-Friendly, and Efficient Mining

Advantages of Backfill Mining Method for Small and Medium-Sized Mines in China: Safe, Eco-Friendly, and Efficient Mining

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

Highly crystallized glass-ceramics from high content gold tailings via a one-step direct cooling method

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