There are also national efforts to "re-mine" tailings from legacy mining sites. "A gold mining site from 150 years ago likely extracted the gold ore and disposed of the crushed …
A thorough characterization of MTs, including their physical, chemical, and mineralogical properties, provides critical insights needed to evaluate options for reusing, …
The use of mine tailings in these building components and construction processes not only has the potential to reduce the demand on the existing natural resources but it could …
The biggest waste streams both in metal value and in volume in mining are tailings, which create long-term environmental liabilities to the companies (Wang et al., 2014) due to the potential for acid rock drainage generation (Simate and Ndlovu, 2014) from sulphidic tailings.Instead of considering the tailings only as an environmental challenge, the tailings …
Ideally, reuse and recycling of tailings, like all other recycling efforts, create financial assets. ... it is shown in the paper that the use of 30% gold tailings as a binder replacement resulted ...
DOI: 10.1016/j.jclepro.2020.125066 Corpus ID: 228929249; Cleaner process: Efficacy of chlorine in the recycling of gold from gold-containing tailings @article{Li2020CleanerPE, title={Cleaner process: Efficacy of chlorine in the recycling of gold from gold-containing tailings}, author={Haoyu Li and Jinhui Peng and Hailin Long and Shiwei Li and Libo Zhang}, …
This paper describes the mineralogical properties of gold tailings, including chemical composition, phase composition, particle size distribution, and microstructure; summarizes the recycling and utilization of components such as mica, feldspar, and valuable metals in gold tailings; reviews harmless treatment measures for harmful elements in ...
DOI: 10.1016/j.ceramint.2022.04.333 Corpus ID: 248630384; Recycling of extracted titanium slag and gold tailings for preparation of self-glazed ceramic s @article{Hui2022RecyclingOE, title={Recycling of extracted titanium slag and gold tailings for preparation of self-glazed ceramic s}, author={Tao Hui and Hongjuan Sun and Tongjiang Peng and Lu Liu and …
The resource utilization of cyanide tailings has significant environmental and economic benefits. The efficient recovery of gold from low-grade cyanide tailings containing 1.71 g/t Au was performed by a chlorination roasting–flotation process. The effects of roasting temperature, calcium chloride, internal coke, external coke, copper sulfide concentrate, and …
The way tailings are handled can have a long-term impact on the mines' economic efficiency, risk management and sustainability. Stacking of tailings is still unconventional compared to the wet tailings dam approach. However, it seems that tailings filtration followed by stacking is the most promising and ecological way forward.
Tailings is an area of mining where the industry is constantly seeking new approaches and ideas. They are an inevitable byproduct of the mining process but require extensive management to protect people and the environment. ... The early results are extremely promising, with excellent dewatering, consolidation, and water recycling rates already ...
"The country is home to numerous dry gold tailings heaps that are re-mined using water jets, or hydraulic mining monitors (inspired by operations in England's Cornish Kaolin mines). "The monitor uses high-pressure water to erode the tailings from the dry heaps, washing the material downstream where it is collected in a reservoir.
The future trends of mine tailings' recycling and reuse should relate to technological innovation development. The targeted valorization approaches should consume …
Gold Tailings Recycling: Many gold mines tailing worldwide are now recycled by the process of re-election-flotation or re-election-carbon slurry process. The methods used for re-election include amalgamation, chute, jigging, and shaker.
However, the use of slag from metallurgical processes is more common for the recovery/recycling of tailings from mining, so steel slag is among the more commonly used waste types [32,75]. For example, there is a study that was …
for high tailings facilities in the deep valleys of the Andes in South America. 2.1 NET PRESENT VALUE ACCOUNTING APPLIED TO TAILINGS MANAGEMENT There is a commonly held perception that transporting tailings as a slurry to a facility is the most economic approach. However, to a large extent this tailings dewatering, density and shear strength, and
Tailings are what remains after extracting valuable minerals and metals from mined ore and usually take the form of a slurry comprising crushed rock, water, trace quantities of metals and additives used in processing. Tailings are pumped into surface dams known as tailings storage facilities (TSFs) where the material is allowed to dry.
Experts believe mine tailings could provide a new source of metals and minerals that are critical to the energy transition, while also cleaning up the environment.
Gold Fields has set a target to maintain general landfill waste mass (non-hazardous waste other than tailings and waste rock) at 2015 levels of 11.2Mt, by ensuring a reduction in the waste that reaches landfill through greater use of on-site waste separation and recycling.
historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term environmental liabilities associated with acid mine drainage. The tailings from the re-processing plant will be re-
Mine tailings are one of the largest waste stream in the world [2][3][4], as 14 billion tons of mine tailings are produced in the world as a result of the mineral processing activities annually [3].
8.75 billion tonnes of waste globally are created from gold mining annually (Earthworks and Oxfam America 2004).Solid waste streams generated from gold mining and processing, better known as mine tailings, still contain a significant mass of gold, with a global estimate of around 425 tonnes (Ogola et al., 2017).The U.S. Geological Survey estimates that …
@article{Calderon2020RepurposingON, title={Repurposing of nickeliferous pyrrhotite from mine tailings as magnetic adsorbent for the recovery of gold from chloride solution}, author={April Rose Malagum Calderon and Richard Diaz Alorro and Bogale Tadesse and Kyoungkeun Yoo and Carlito Baltazar Tabelin}, journal={Resources Conservation and ...
In this scenario, recycling mine tailings can help reduce the number of tailings for disposal. Circular economy, recyclability, recycling, and reuse have been identified as …
The process for recycling sericite from gold tailings according to claim 2, wherein the process comprises the following steps: and (4) carrying out three-stage ore grinding on the concentrated underflow I in the step (5), and then carrying out filter pressing on the three-stage ore grinding products. 4. The process of claim 3, wherein the ...
Given the high impact of traditional mining, the recovery of rare earth elements (REEs) from hazardous waste materials could become an option for the future in accordance with the principles of the circular economy. In this work, the technical feasibility of REEs recovery from metal mine tailings has been explored using electrokinetic-assisted phytoremediation with …
gold plant tailings to regenerate and recovery cyanide for recycling, and presents a technoeconomic argument for the incorporation of this technology into many gold plant flowsheets today. INTRODUCTION. Interest in the recovery of cyanide . from gold and silver plant tailings has heightened in recent years. This interest has been spurred by several
In this study, MCM-41 was prepared from the gold mine tailings slurry as an alternative silica source. The effects of the reaction time, temperature, and pH adjustments on the synthesis of MCM-41 were investigated. The optimum condition for the synthesis process of pure and highly ordered MCM-41 from tailings slurry was found to be at 30°C for 60 min with a pH of 11. In …
Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as well as the advancement in technology that allows for the exploitation of lower-grade ores. Lower grades can increase the volume of tailings that may contain new gangue minerals that should be …
PDF | On Sep 1, 2021, A M Amdur and others published Recycling of gold tailings of silicate-carbonate ores | Find, read and cite all the research you need on ResearchGate
In this scenario, recycling mine tailings can help reduce the number of tailings for disposal. Circular economy, recyclability, recycling, and reuse have been identified as emerging solutions that can drive the …
Reprocess tailings. Really? Yes, really. ... It is essential to the extraction of metals, and can be very expensive to source, treat and recycle or replace. Water is also difficult to keep in a closed loop, and the loss of water and, potentially, minerals contained within it as solids (tailings) or in solution (acid mine drainage) can be very ...
In contrast, the UCS value of tungsten mine tailings based backfills was 1.36 MPa when the amount of crushed rock within the filling matrix became 10%. Tungsten tailings based backfills were more sensitive to crushed rock gradation than gold tailings based backfills. CTCRB's stress-strain curvatures were up-concave in the step of pore compaction.
The recycling of gold tailings is helpful for alleviating these issues. This study investigated the possibility of utilizing gold mine tailings to produce sintered bricks. In the preparation ...
This paper describes the mineralogical properties of gold tailings, including chemical composition, phase composition, particle size distribution, and microstructure; summarizes the recycling and utilization of components such as mica, feldspar, and valuable …
2. Gold mine tailings dry stacking. The tailings dry stacking process relieves the storage capacity pressure of the tailings pond, reduces the safety hazards of the tailings pond, and the return water utilization reduces …
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