Gypsum Flotation Tailing
Towards tailing grade prediction in zinc flotation via …
In this study, a flotation tailing from Wulagen zinc mine in China (Zn grade < 1%) was processed using froth flotation with combinations of amines (OPA 10, OPA 1214, OPA 13, DDA) and Na2S to study ...
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Co-treatment of copper smelting slag and gypsum residue …
In this study, gypsum was used as an inorganic depressant for the flotation separation of apatite from dolomite through the selective adsorption of gypsum on the surface of dolomite. Micro-flotation experiments showed that sodium oleate exhibited a good ability to collect apatite and dolomite, but poor ability to collect gypsum.
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Pollutants' migration and transformation behavior in …
Ca 2+ was released from phosphogypsum (PG), desulfurization gypsum (FGD), and CaCl 2 into the aqueous solution of phosphorus ore flotation tailings (PTs) at room …
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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 utilization generated a …
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Recycling and Reuse of Mine Tailings: A Review of …
Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air environments. It reached 7 billion tonnes of mine tailings generated yearly worldwide, and 19 billion solid tailings will be accumulated by 2025. Adding to this, the …
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Impact of gypsum supersaturated water on the uptake of …
DOI: 10.1016/J.MINENG.2013.05.014 Corpus ID: 98025653; Impact of gypsum supersaturated water on the uptake of copper and xanthate on sphalerite @article{Deng2013ImpactOG, title={Impact of gypsum supersaturated water on the uptake of copper and xanthate on sphalerite}, author={Mei-jiao Deng and Qingxia Liu and Zhenghe Xu}, journal={Minerals …
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An innovative method for simultaneous …
Via the closed-circuit flotation process, the whiteness of the PG concentrate is improved from 33.23 to 63.42, and the purity of gypsum in the PG concentrate increases from 83.90% to 96.70%, with ...
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Distribution and Migration of Trace Elements during Flotation …
Flotation is an effective method for industrial coal preparation. 20−22 Flotation can separate minerals from coal according to the surface property difference between coal and minerals. 23 Duan et al. studied the removal of toxic elements via the flotation of high-sulfur coal in Southwestern China and found that flotation was an effective way ...
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APPLICATION OF PASTE TECHNOLOGY FOR TAILINGS HANDLING …
Physical properties of Gyönygösoroszi flotation tailing and Neyvel fly ash ... gypsum. F IG 1 - Comparison of particle size distributions of the tested materials . 0 200 400 600 800 1000.
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Recycling of pyrite and gypsum mining residues through …
Gypsum residues are produced through neutralization in hydrometallurgical processes, such as bioleaching or acid-leaching of sulfide ores. At present, the world stockpile of waste gypsum has reached over 6 billion tons and is growing yearly by 150 Mtons (Lv and Xiang, 2022; Rychkov et al., 2017).A large amount of Fe-gypsum is piled and generated daily …
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Acidic and Ammonium Sulphate Leaching of Historic Copper …
Acid and ammonia leachingLeaching was carried out on old froth flotation copper tailingsCopper tailings from the Copperbelt Province in ZambiaZambia. ... (gypsum, melanterite), carbonates (malachite, azurite), hydroxides (goethite ... Chen T, Lei C, Yan B, Xiao X (2014) Metal recovery from the copper sulfide tailing with leaching and fractional ...
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The Development of Innovated Complex Process for …
The base and precious metal contents in flotation tailings are often comparable to those in the processed sulfide ores. The reserves of metals contained in flotation tailing in some sites may be estimated as significant due to the large volumes of wastes accumulated from decades of exploitation of some mineral deposits [15,17,21].
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Introduction to this Special Issue on Tailings Storage
Pedro Camero-Hermoza et al. (Perú and México) propose pyrite flotation separation and encapsulation as a way to chemically stabilize tailings in a process in which pyrite is separated by flotation from the coarse tailings and incorporated into the slime, thus avoiding acid water generation.
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(PDF) Mineralogical Characteristics of Phosphate Tailings …
The mineralogical characteristics of a phosphate tailing were studied, and the occurrence state, mineral types, and embedded characteristics of phosphorus in the phosphate tailings were ascertained.
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(PDF) Investigation of flotation parameters for copper recovery …
This study aimed to recover cobalt using tailings of the Küre flotation plant, which were determined to contain 0.17% Co. Flotation tests were conducted on samples taken from the tailings to ...
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Socio-Environmental Risks Linked with Mine Tailings …
Flotation is the most widely used technique for recovering/extracting minerals from ores. ... Whether in operation or in a state of safe closure, it is important to continually review tailing facilities and procedures and to maintain the highest safety standard. Due to their geochemical nature, mine tailings are materials that experience ...
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The study on the effect of flotation purification on the …
Finally, gypsum concentrate was flotation by adding dodecylamine, and the product in the tank was tailings2. All test samples were dried at a temperature of 42 °C and …
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Recovery of pyrite from copper tailings by flotation
The concentration of sulfide copper minerals by means of flotation generates large volumes of tailings. It is estimated that one hundred twenty-five tons of tailings are generated per one ton of produced copper, and its generation is on a continuous rise because of the decrease of the copper grades [1].On the one hand, the tailing is considered an environmental problem as …
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Utilisation of FGD gypsum for silicate removal from scheelite flotation …
The sodium silicate used as depressant is difficult to degrade in the tailing dam. The residual silicate in recycled water poses a significant threat to the environment and scheelite flotation performance. FGD gypsum was collected from a steel plant located in Panzhihua, China. Stacked gypsum not only occupies land but also poses remarkable ...
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Effect of thermal activation and particle size on
The results demonstrated that the structure of kaolinite-illite mixed-layer clays of coal flotation tailing could be destroyed by thermal activation treatment and the optimal …
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A Novel Process to Recover Gypsum from …
Before aeration, frothers (pine oil) were added to improve the bubbles and stirred for an additional 3 min. After 3 min of flotation, the froth (gypsum concentrate) and in-tank product (flotation tailings) were separately …
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Rare Earth and Phosphorus Leaching from a …
This study focused on the effects of wet-process operating conditions on REE and phosphorus leaching from a kind of flotation tailing of Florida phosphate rock. The tailings were first beneficiated with a shaking …
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An innovative method to degrade xanthate from flotation …
Simultaneously, flotation tailings wastewater treatment has garnered widespread interest. Froth flotation, based on the different surface properties of minerals, has become the most common and effective beneficiation method for separating metallic sulphide minerals from gangue (Cheng et al., 2012; Shao et al., 2016).It has been reported that about 2 billion tons of …
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Mineral Processing for Environmental Management
Froth flotation process has been conducted in order to minimize the environmental impacts of Pb–Zn tailings. ... activator and depressant) were analytical high grade. Tailing minerals were: galena, sphalerite, cerussite, smithsonite, hemimorphite, hydrozincite and willemite, in a matrix of quartz, calcite, dolomite, gypsum and clays. Chemical ...
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Testing of 17-different leaching agents for the recovery …
The recovery of zinc from a flotation tailing using 17-different leaching agents, including inorganic and organic acids, alkaline solutions and chelating agents, was investigated. ... gypsum, and goethite in this lixiviant. It was seen that the addition of oxidants in sulfuric acid solution slightly increased zinc dissolution. The citric acid ...
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(PDF) Preliminary mineralogical study of the flotation sand …
PDF | On Jan 1, 2021, Delia-Georgeta Dumitras and others published Preliminary mineralogical study of the flotation sand from the Tăuşani tailing pound (Moldova Nouă, Romania) | Find, read and ...
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(PDF) The study on the effect of flotation purification on the
Phosphogypsum (PG) is a massive industrial solid waste. In this paper, PG was purified by flotation method, and α-hemihydrate gypsum (α-HH) was prepared by the autoclaving method. ... J. P. et al. Effect of flotation reagents for upgrading and recovery of Cu and Mo from mine tailing by flotation. Resour. Process. 1, 14–21. https://doi ...
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(PDF) Recovery of ZnO from lead-zinc flotation …
and roasting steps. 83.1% Z n and 91.6% Cd leaching effici encies were obtained from Pb-Zn flotation tailing particles with the size range of 50-110 nm from AFM image c ross-sections, while lead ...
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Co-treatment of flotation waste, neutralization sludge, and …
Flotation waste of copper slag (FWCS), neutralization sludge (NS), and arsenic-containing gypsum sludge (GS), both of which are difficult to dispose of, ar. Skip to main content. ... Kim IS (2000) Solidification and stabilization of Pb, Zn, Cd and Cu in tailing wastes using cement and fly ash. Miner Eng 14:1659–1662. Jing C, Korfiatis GP ...
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ELECTROKINETIC DEWATERING OF GYPSUM …
Electrokinetic dewatering of mine tailings has been studied since 1960s. Applications included dewatering of coal and sand washeries and tailings from mineral recovery (Lockhart 1986). …
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