5. Tailings management within the circular economy in mining. In this chapter, the possibilities to manage the mine tailings with reduce, reprocessing, upcycle, downcycle and disposal strategies are discussed. In the subchapter 5.2, an inventory of the metal content of mine tailings in Finland is presented. 5.1.

Copper and cobalt can be found on nickel laterite ores, and cobalt can be found also on copper ores, and many contaminants such as iron, aluminum, and magnesium are associated with these ores. In hydrometallurgical process, a purification step is necessary after leaching due to the presence of these impurities. Chelating …

The compositions of the Zuoxiguo antimony mining tailings were SiO 2, CaCO 3, FeS 2, and Sb 2 S 3, a typical sulphide mining tailing Conversely, the fractions Maximum antimony recovery was obtained 2952% under of flotation and metallurgical processing to treat copper anode slime produces approximately 1400 A review of the technologies for ...

Recovery of Antimony from Mining Tailings and Recycling of the Regenerated Solution Media. Mater. ... In this work, the recovery of antimony from highly concentrated solutions was investigated. In ...

Tailings deposited over the Castanheira, a stream which flows through the old Ag–Pb–Zn Terramonte mine area, showed a great potential environmental risk due to sulphide weathering, facilitated by the tailings–water interaction. The high concentrations of Al, Fe, Pb and Zn in the tailings are associated with the exchangeable, reducible and …

However, the presence of lead, chromium, antimony and arsenic can be observed in the table as well, so environmental regulations should be kept in mind when evaluating the results. This research is only focused on the leaching of tailings for gold and silver recovery. Silver and Gold Leaching from Mine Tailings

The leaching characteristics of metallurgical slag-based binders (MSB) solidified/stabilized tailings containing arsenic (As) and antimony (Sb), were investigated via a series of semi-dynamic ...

The Au and Ag recovery from mineral tailings using glycine and sodium thiosulphate showed a leaching recovery of Au more than 80% after 48 h leaching tests with thiosulfate at a solid–liquid ratio of 1:1 . Several studies have been carried out over the last decades to establish the commercial feasibility of Au leaching using thiosulphate.

The leaching characteristics of metallurgical slag-based binders (MSB) solidified/stabilized tailings containing arsenic (As) and antimony (Sb), were investigated via a series of semi-dynamic leaching tests using three kinds of leachant, for the simulation of actual leaching conditions. ... Energy Sources Part A Recovery Util. Environ. Eff., 41 ...

Antimony ore tailings slag was used analyze heavy metals, chemical speciation, and leaching characteristics. The results show that the residual silicate phases account for 65.44% of Sb, 77.22% of ...

The present invention provides a method for an integrated recovery of gold, antimony, lead from the flotation tailings, the technical field belonging to the utilization of resources. The method first re-election by removing slime flotation tailings and then reselection gold-antimony lead flotation, flotation of mixed concentrate regrinding be floating gold lead …

Larvotto Resources' $8m acquisition of the Hillgrove project in NSW comes with a million ounces of gold, Australia's biggest antimony resource, gold-laced tailings and a mothballed processing plant and exploration package that has soaked up $200m. The project was put on the chopping block by administrators when Red River Resources …

The main objectives of the pilot test are to demonstrate the effectiveness of the Imhoflot TM pneumatic G-Cell for recovering fine gold lost into the tailings, improving the gold grade and to improve overall recovery. A 40 m 3 /h pilot plant has been constructed and installed in 2018 and the pilot tests were conducted in 2019. As per the …

The leaching characteristics of metallurgical slag-based binders (MSB) solidified/stabilized tailings containing arsenic (As) and antimony (Sb), were investigated via a series of semi-dynamic leaching tests using three kinds of leachant, for the simulation of actual leaching conditions. The effectiv …

This focused on optimising nickel, copper, cobalt, and platinum group metals (PGM) recovery processes from nickel mine tailings. The company said the results demonstrate "a step change in efficiency in extracting critical metals from these waste materials" and will allow it to move to second phase testing in Q1 2024, with work on pre …

NaOH is a powerful tool for gold extraction from refractory tailings. Keywords. gold recovery, refractory calcine tailings, ultrafine grinding, alkaline pre-treatment, microwave. Introduction. South Africa has over 500 gold tailings dumps, several of which have the potential to be profitably . reprocessed (Janse van Rensburg, 2016).

From the colonial era to modern times, gold mining has played a crucial role in shaping Brazil's economy, culture, and landscape, particularly in the Iron Quadrangle region. Therefore, resulting waste has accumulated in tailings structures, either from deactivated circuits or plants still in production. The present study reveals the potential …

The weathering and leaching of mining tailings have released large amounts of antimony (Sb) and arsenic (As), causing serious pollution in the surrounding soil, water, and sediments. To understand the leaching characteristics of Sb and As in mining tailings, Zuoxiguo and Qinglong mining tailings were collected for analysis. The …

Therefore, the recovery of cobalt from flotation tailings [12–14] or smelter slags [ 15–17] is of particular interest. These materials can be used as a secondary source of cobalt and are potentially an important source. There are company-based projects in operation or in development for the reprocessing of various tailings [18, 19].

The leachability of heavy metals (HMs) in tailings is significantly affected by multivariate factors associated with environmental conditions. However, the leaching patterns of HMs in molybdenum (Mo) tailings due to environmental change and cumulative influences of multi-leaching factors remain unclear. The leaching behaviors of HMs in …

For the purpose of efficient and selective antimony recovery with minimal economic cost and environmental impact, researchers proposed various innovative pyrometallurgical, hydrometallurgical, and electrochemical processes. This paper reviews the state-of-the-art technologies for the antimony separation and recovery from …

Once the antimony minerals are oxidized in contact with the air, antimony will be released in a dissolved state, and then attached to the surface of various solid particles in the tailings in the ...

Direct cyanidation of tailings material as-received (P 80 -53 μm) and after ultrafine grinding (P 80 -16 μm) Figure 7-Gold recovery by cyanidation of NaOH pre-leached residues

This study comprehensively investigated arsenic's enrichment, distribution, and characteristics in tailings. XRD and SEM-EDS characterized the phase and morphology of tailings from various smelting processes. At the same time, the embedding characteristics of arsenic in the ore phase were analyzed by EPMA. The differences …

Section snippets Site description. The studied site, the Xikuangshan mining area, covers 70 km 2, is situated between 27.7°N and 111.4°E in Hunan Province, in southwest China (Fig. 1).The XKS Sb mine is located on a large Sb deposit. The Sb deposit, which is about 2 km wide and 9 km long, sits in the northern part of the …

Martí-Calatayud MC, Hernández-Pérez L, Bernardes AM, Rodrigues MAS, Cifuentes G, Riveros G, Pérez-Herranz V. Application of the Electro-Electrodialysis Technology in the Copper Mineral Processing Industry: Recovery of Antimony from Mining Tailings and Recycling of the Regenerated Solution Media.

Like the variation pattern of grade and recovery, the tailings rate, an important indicator of the pre-concentration process, is less affected by the agitation speed in the low speed range(0-200 rpm), and begins to grow rapidly after the agitation speed exceeds 200 rpm. ... Plan C: Pretreating antimony oxide tailings using an agitated …

AbstractCleaning of high antimony smelting slag from an oxygen-enriched bottom-blown was tested by direct reduction in a laboratory-scale electric furnace. The effects of added CaO, mass ratio of coal (experimental) to coal (theoretical) (ω) and the slag type on the reduction procedure were considered. The contents of Sb and Au were …

In accordance with the metal prices achieved in March 2022, it is estimated that the recovery of tailings could bring up to 18,100 million USD, which is much more compared to the prices of March ...

Application of the Electro-Electrodialysis Technology in the Copper Mineral Processing Industry: Recovery of Antimony from Mining Tailings and Recycling of the Regenerated Solution Media.