Geochemistry and mineralogy of auriferous tailings deposits
The content of Au feed from current mines varies from 5 ppm to 1, depending on each mine 1 The tailings dams 4 and 5 are downstream, monitored and declared safe according to the national mining ...Web
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A review of circular economy strategies for mine tailings
Circular economy Tailings Waste Valorisation Institution Digitalisation 1. Introduction Metals are essential in the transition to the green technologies e.g. in low …Web
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Socio-Environmental Risks Linked with Mine Tailings Chemical
1.1. What Are Mine Tailings? An Initial Scope in an Uncertainty and Complex World. The initial step in mineral processing involves crushing and grinding ore to produce a suitable particle size for further metallurgical processing using physical and chemical separation methods [].Physical separation processes take advantage of the …Web
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Sustainable Development Goals in Mine Tailings …
One of the main streams of wastes in mining is mine tailings, which are produced in mineral processing plants. The mining industry must enhance its contribution to achieving sustainable …Web
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Sustainability | Free Full-Text | Various Options for …
In the last few years, the mining and metallurgy industry has made concerted efforts to improve waste management through a byproduct recovery strategy, mainly focusing on developing innovative technologies …Web
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A framework for a sustainable approach to mine tailings …
Mine tailings are complex ecosystems containing toxic organic and inorganic pollutants, including heavy metals and radionuclides, which are deposited as waste materials produced during mineral ...Web
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Sustainability | Free Full-Text | In-Pit Disposal of Mine Tailings for
In the next decades many of the old tailings storage facilities (TSFs) could be re-processed if one considers the prices of metals, new uses of metals which today are not valuable, and the application of new, more efficient metallurgical technologies. In this context, in-pit disposal of mine tailings (IPDMT) is an attractive alternative to be used as …Web
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Asante Gold's newly acquired Bibiani: Reawakening a sleeping giant
Bibiani remains fully permitted with available mining and processing infrastructure on site, consisting of a 3 Mtpa mill and processing plant and existing underground mining infrastructure. In August this year, Asante Gold acquired Bibiani for US$90 million. Resolute received the initial $30 million cash payment with the balance …Web
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MINE TAILINGS FACILITIES: OVERVIEW AND INDUSTRY …
2. MINE TAILINGS AND TAILINGS FACILITIES: AN OVERVIEW. Mine tailings are the waste material that remains after the economic fraction has been extracted from the …Web
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Alternative Use of Tailings and Waste
The Challenge. Mining waste is one of the largest waste streams generated globally, estimated to exceed 100 billion tons every year. Our goal is to enable scientific advances and technology development for mining waste valorization and resource recovery, contributing to environmental protection and creating business and social …Web
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Tailings: Dangerous Wastes or Precious Treasures?
Japan uses flotation iron ore tailings and coal tailings as the main raw materials to make sewer clay pipes, and the Japanese Institute of Pollution Data has patented the use of them as lightweight porous material. China applies iron ore tailings to non-fired bricks, glass, glass-ceramics, fine concrete aggregates, and road bases.Web
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Using microbes to get more out of mining waste | ScienceDaily
Aug. 24, 2022 — The growing demand for nickel, copper, cobalt, and zinc -- raw materials for solar panels and batteries -- puts the mining and metals sector in the spotlight of climate change ...Web
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Utilization potential of mine tailings in geopolymers
1. Introduction. The problem of environmental safety during the mining and processing of ore and mineral resources is acute worldwide. Intensive development of mining production promoted the accumulation of huge volumes wastes of mining and minerals separation process – the so-called "mine tailings" (MTs) (Xu et al., …Web
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Mine tailings to treasure: providing society with sustainable
Approximately 600 Mtonnes is produced a year and there is a historic stockpile of 28 000 Mtonnes deposited in either tailings storage facilities, dry stacked or back-filled in mines. When poorly managed, this waste can become an environmental hazard, causing problems such as acid-mine drainage, the outflow of acidic water from …Web
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Mine tailings as a raw material in alkali activation: A review
... Based on the Si/Al ratio, different types of aluminosilicate chain structures are formed during geopolymerization (see Fig. 1) (Davidovits 1991).Web
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Transformation of mine tailings into cement-bound
The production of mining waste exorbitantly surpasses that amount, being estimated at 700 Mton/year (European Innovation Partnership on Raw Materials and Raw Materials Scoreboard, 2018). The aggregate market on the other hand is estimated to require 2900 Mton/year of raw materials in the EU ((UEPG), 2018). On a volume basis, …Web
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Recycling mine tailings as precursors for cementitious binders
, A. Chaliasou, A. Kanellopoulos Add to Mendeley https://doi/10.1016/j.conbuildmat.2021.125333 Get rights and content • Up to 2060 …Web
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Asante Gold Announces Acquisition of Resolute's Bibiani
Asante Gold Announces Acquisition of Resolute's Bibiani Gold Mine in Ghana for US$90 Million Cash. THIS NEWS RELEASE IS NOT FOR DISTRIBUTION IN THE UNITED STATES OR TO U.S. NEWS AGENCIES ...Web
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Feasibility of re-processing mine tailings to obtain critical raw
Recently, authors have also investigated the use of Chilean coppertreated tailings as supplementary cementitious materials to improve properties of concrete [86,87], the use of copper tailings ...Web
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The raw-materials challenge: How the metals and mining sector …
The required pace of transition means that the availability of certain raw materials will need to be scaled up within a relatively short time scale—and, in certain cases, at volumes ten times or more than the current market size—to prevent shortages and keep new-technology costs competitive (see sidebar "Rare-earth metals").Web
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Minerals | Free Full-Text | Critical Minerals from Post-Processing
The growing demand for critical raw materials (rare earth elements—REE, Nb, Ta, and others) enforces a need to look for their alternative sources. Distortions of the mineral supply chain caused by COVID-19 have necessitated a re-evaluation of what exists as mining waste from previous exploitation. Consequently, this study aims to provide an …Web
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MANAGEMENT OF TAILINGS: PAST, PRESENT AND …
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 …Web
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13 Applications of Tailings and Waste Rocks | Fote Machinery
4. Raw materials of cement The basic raw materials of cement are limestone and clay. Limestone, claystone, shale, and other stones are common waste rocks that remained in the mining process. Besides, tailings containing corresponding components can also be used as basic raw materials of cement.Web
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23 June 2016 Bibiani Feasibility Study Completed
The mine closed in 1913 after recovering approximately 70,000oz of gold. In 1927 mining activities recommenced as an underground mine. The mine was operated by the State Gold Mining Corporation until it was closed in 1973, having yielded approximately 2 million ounces ("Moz") of gold. Ashanti Goldfields acquired Bibiani in the mid-1990s and ...Web
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ASANTE ANNOUNCES UPDATED NI-43-101 TECHNICAL …
Chirano is an operating open-pit and underground mining operation located in southwestern Ghana, immediately south of the Company's Bibiani Gold Mine. Chirano was first explored and developed in ...Web
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Concrete Made with Iron Ore Tailings as a Fine Aggregate: A …
The need for low-cost raw materials is driven by the fact that iron ore tailings, a prevalent kind of hazardous solid waste, have created major environmental issues. Although many studies have focused on using iron ore tailing (IOT) in concrete and have reported positive results, readers may find it difficult to accurately assess the …Web
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ASANTE GOLD ANNOUNCES HIGH GRADE GOLD DISCOVERY AT BIBIANI …
The Bibiani Mine plans its first gold pour in Q3 2022 and to produce approximately 175,000 oz of gold in its first 12 months of operation. Thereafter, plans are to produce 220,000 to 270,000 ...Web
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Recovery of Zinc and Copper from Mine Tailings by Acid …
Mine tailing storage represents an important environmental issue. The generation and dispersal of dust from mine tailings can contaminate air and surrounding soils. In addition, metals and soluble salts present in these wastes could pollute groundwater and surface water. The recovery of metals from mine tailings can contribute to minimize …Web
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Process effluents and mine tailings: sources, effects …
Most mines produce tailings as the final waste from mining the ore body, ore processing, and recovering the valuable metals and minerals. Mine tailings are the residue that results from mining, …Web
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Life Cycle Assessment of Electrodialytic Technologies to Recover Raw
Currently, the development of new sustainable technologies to recover raw materials from secondary resources has shown a lack of available data on the processes and supplies involved, as well as their environmental impacts. The present research has conducted a life cycle assessment of electrodialytic (ED) technologies to improve critical …Web
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