Toward sustainable reprocessing and valorization of sulfidic copper …

We assume this technology is the marginal production for the European cement market in 2050, while those imported from major players in India and China are defined as alternative marginal suppliers in the sensitivity analysis. • Copper and zinc. According to the IEA (2021), refined copper would be globally sourced from a mix of …

China's recent tailings leak the worst in 20 years

The spillage on March 28 at Yichun Luming's tailings storage in the northeastern province of Heilongjiang sent 2.53 million cubic metres of mining waste into the local river system, reviving ...

Small Scale Copper Ore Flotation Processing Plant for Copper …

Victor is a large mineral processing manufacturer for 15 years history, with covering an area of 48,000 square meters and 20,000 square meters for workshop, with various large modernized machinery facilities, professional R&D team and installation team. With 32% market share in China and the rest to overseas, already successfully exported to over …

Bacterial Heavy-Metal and Antibiotic Resistance Genes in a Copper …

The objective of this study is to reveal the occurrence of MRGs and ARGs and the relationships between heavy metal and MRGs/ARGs in this copper tailing dam area. Materials and Methods Soil Sampling. The study area (35°15′N, 111°39′E) is located in a copper tailing dam area in the southern part of Shanxi Province, China.

China copper smelters eye more output cuts as raw material …

Refined copper output in top producer China is closely watched by investors betting on tight long-term supply driven by rising demand for energy transition technology.

Experimental study on the utilization of copper tailing as …

Concrete has been the most extensively used building materials all over the world for a long time. China has built nearly 6.5 billion m 3 concretes in 2016, which consuming more than 2.41 billion tons of cement (nearly 60% of the global), and more than 4.5 billion tons of fine aggregates [5].However, as a kind of unrenewable resource, river …

China: Five Largest Copper Mines in 2021

The five largest copper mines, i.e., Yulong Mine, Heilongjiang Duobaoshan Copper Mine, Pulang Copper Mine, Jiama Mine, and Zijinshan Gold & Copper Mine, cumulatively …

Characterization of keystone taxa and microbial …

The Bofang copper tailing (26°55′ N, 112°46′ E) is located in Hengyang, Hunan Province, Southeast China. Bofang copper smelter is the only copper enterprise with complete mining, separation, and metallurgical process in Hunan Province. The production scale of copper, lead, and zinc smelting in Bofang Copper smelter includes 600,000 tons of

Mining copper tailings could answer supply …

With the copper mine development cupboard remaining bare, both Trafigura Group, the world's top copper trader, and Goldman Sachs Group say prices could hit $15,000 a ton in the coming years. A...

Experimental study on mechanical characteristics of copper tailing

Two types of tailing materials with high and low sulfur contents, obtained from an under-construction tailing pond in western China are tested, and the physical and mechanical properties ...

Separation of chalcopyrite and pyrite from a copper tailing …

DOI: 10.1016/J.CJCHE.2018.02.014 Corpus ID: 104262748; Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate @article{L2018SeparationOC, title={Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate}, author={Cui-cui L{"u} and Yongliang Wang and Peng Qian and Ya Liu and Guoyan Fu …

A review of circular economy strategies for mine tailings

1. Introduction. Metals are essential in the transition to the green technologies e.g. in low emission electric vehicles and in energy storage systems (Upadhyay et al., 2021).At the same time with the positive contribution to the society, mining also produces significant amounts of solid waste (Edraki et al., 2014) belonging with …

Copper production in China and major projects

Leading producers of copper in China are Zijin Mining Group, Jiangxi Copper and Zhaojin Mining Industry. During 2020-2021, Zijin Mining Group's output was …

Top 10 Gold-mining Companies (Updated 2024) | INN

Production: 106.8 tons. Agnico Eagle Mines produced 106.8 tons of gold in 2023 to take the third spot on this top 10 gold companies list. The company has 11 operating mines in Canada, Australia ...

Characterizations of heavy metal contamination, microbial community

In the present work, we profiled the heavy metal contents, microbiome and resistome of a mine tailing in Dexing Copper Mine, which is the largest open-pit copper mine in China. A total of 39.75 Gb clean data was generated by metagenomics sequencing and taxonomy analysis revealed Actinobacteria, Proteobacteria, Acidobacteria, …

3D Visualization Monitoring and Early Warning System …

4Zijin Mining Company Limited, Shanghang, China ... gold–copper tailing dam in Zijinshan Dadongbei tailing pond. The system consists of equipment management, data management, prediction ...

15 Biggest Copper Companies in the World

10. Zijin Mining Group Company Limited (OTC:ZIJMF) Market Cap as of November 25: $34.7 billion. Zijin Mining Group Company Limited (OTC:ZIJMF) is a mining company based in Mainland China.

Present Situation of Comprehensive Utilization of Tailings …

LYU C, WANG Y, QIAN P, et al. Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate[J]. Chinese Journal of Chemical Engineering, 2018, 26(9):1814-1821. Google Scholar [26] CHEN T, LEI C, YAN B, et al. Metal recovery from the copper sulfide tailing with leaching and fractional precipitation technology[J].

Underestimated environmental benefits of tailings resource …

Among the tailings produced in China in 2019, iron tailings were 520 million tons, accounting for 40.9%, copper tailings were 325 million tons, accounting for 25.6%, and the rest were rare and precious metal and non-metal tailings (Du et al., 2020).

An extensive review on restoration technologies for mining tailings

Tailing, in context to mining, is defined as the waste or non-economic by-product generated during mining activities, processing of minerals, and other materials that contain small amounts of residual valuable minerals, chemicals, water, and heavy metals (Adiansyah et al. 2015).Studies indicated that the process of mineral exploitation and …

MANAGEMENT OF TAILINGS: PAST, PRESENT AND FUTURE

copper production, particularly in Chile, increased significantly. The failure resulted in almost immediate industry-initiated changes to tailings facility construction in Chile. These included: • using dozers to flatten the downstream slope to about half (from an angle of repose of wet sand of about 2.5 horizontal to 1 vertical to about 4 to 1),

Forced evictions at industrial cobalt and copper mines in the …

The expansion of industrial-scale cobalt and copper mines in the Democratic Republic of the Congo (DRC) has led to the forced eviction of entire communities and grievous human rights abuses including sexual assault, arson and beatings. ... a Chinese company, and Générale des Carrières et des Mines SA (Gécamines), the DRC state mining ...

First Quantum tries to strike balance with Chinese …

The tailing area of First Quantum Minerals Ltd.'s Panama copper mine in Donoso, Panama. ... Ottawa has been taking steps to prevent Chinese companies from investing in key Canadian sectors, but a prominent Toronto-based miner announced an agreement on Tuesday that it hopes will provide more clarity on its relationship with a …

Copper-Zijin Mining Group Co., Ltd.

Among the world's top five newly discovered copper mines in the 21st century, the Company owns three slots of world-class mega copper mines, including Kamoa-kakula Copper Mine in DR Congo, the Čukaru Peki …

Goldman Sachs Cuts Copper Price Forecast on Weak Chinese …

Goldman Sachs (NYSE:GS) has revised its copper price forecast, significantly lowering its 2025 estimate due to weakening demand from China, a major …

Mine tailing disposal sites: contamination problems

Mining practices and the absence of proper mine land reclamation has led to heavy metal contaminated sites with serious impact on the ecosystems and risk for human health. The origin of the contamination is often associated to mine tailing deposits because they are a source of the acid mine drainage (AMD). These areas are devoid of …

CHAPTER II

from copper mining (Figures 4 and 5). The precise number of active tailings storage facilities is currently unknown. Although incomplete, the Global Tailings Portal (see the chapters by Franks et al. and Barrie et al., this volume), which includes information provided by publicly listed companies, currently records 724 active tailings facilities.

A tenth of the world's tailing dams have had stability issues

Most Chinese and Indian miners have yet to provide information, which leaves a significant gap in efforts to create a global picture of safety risks posed by tailing dams, the investors say.

Characterizations of heavy metal contamination, microbial …

DOI: 10.1016/j.envpol.2021.116947 Corpus ID: 232420543; Characterizations of heavy metal contamination, microbial community, and resistance genes in a tailing of the largest copper mine in China.