— Note that the content of tailings particles of size 20 μm was 93.2%, which is classified to be ultrafine-tailings, as stated by the reference [81]. The ultrafine-tailings retained specific ...
WhatsApp: +86 18221755073
— Effect of interparticle interactions on the yield stress of thickened flocculated copper mineral tailings slurry. Z. Ruan Aixiang Wu +5 authors Sheng Wang. Environmental Science, Engineering ... Rapid dewatering and thickening of whole-tailings with ultrafine particles is one of the most important processes for the whole-tailings paste ...
WhatsApp: +86 18221755073
— A copper dressing plant in Jiangxi province of China deals with raw ore in the capacity of 185,000 t/a, and its copper recovery is 86.5% while 13.5% copper still remained in tailings, and a ...
WhatsApp: +86 18221755073
— This article presents an investigation on the feasibility of utilizing ultra-fine copper tailings (CTs), polishing slag (PS), and fly ash (FA) to produce customised high …
WhatsApp: +86 18221755073
— Semantic Scholar extracted view of "Separation behavior of Falcon concentrator for the recovery of ultrafine scheelite particles from the gold mine tailings" by Surya Kanta Das et al. ... Recovery of Zinc and Copper from Mine Tailings by Acid Leaching Solutions Combined with Carbon-Based Materials.
WhatsApp: +86 18221755073
— The efficiency of the froth flotation process has long been known to be strongly dependent on particle size. For sulfide minerals, good recoveries are typically achieved in industrial flotation circuits for particles in the 30 to 200 µm size range. Particles outside this critical size are typically lost in industrial operations and rejected to tailings …
WhatsApp: +86 18221755073
— Cyanide tailings are the hazardous waste discharged after gold cyanidation leaching. ... Ultrafine grinding (UFG) was proposed as a pretreatment method prior to cyanide leaching of old plant tailings of a refractory silver ore. ... Copper minerals present difficulties during the cyanide leaching of gold ores leading to excessively high ...
WhatsApp: +86 18221755073
Recoveries of copper to froth were maximum at particle sizes between 30 and 150 µm, with a distinct drop in recovery outside of this range, resulting in a loss of ultrafine and coarse particles into tailings (Figure 3).
WhatsApp: +86 18221755073
DOI: 10.1016/j.conbuildmat.2024.135286 Corpus ID: 267678715; Rheological and mechanical properties of full-tailings backfill material prepared by ultrafine-iron-tailings-powder-based consolidation agent
WhatsApp: +86 18221755073
— In this test with a mass concentration of 77% and a coarse tailings to fine tailings ratio of 2:1, the optimal sand-binder ratio for waste glass used in mine tailings backfill is determined as 8:1 ...
WhatsApp: +86 18221755073
DOI: 10.1007/s41062-024-01374-z Corpus ID: 267906386; A review on 3D printable cementitious material containing copper and iron ore tailings: material characterization, activation methods, engineering properties, durability, and microstructure behavior
WhatsApp: +86 18221755073
The extraction of copper is a critical economic activity in the modern world. The properties of this metal make it essential for several industries. Copper is widely used in the electronics and electrical industries due to its excellent electrical conductivity. Its good corrosion resistance makes it an essential resource in the c…
WhatsApp: +86 18221755073
— Kaolinite, as a mineral in fine coal, has an important influence on the flotation of coal particles. In this study, the effects of ultrafine kaolinite particles on the flotation recovery of coal particles were investigated. Flotation tests were carried out using a mixture of coal particles and different amounts of ultrafine kaolinite particles. Combined with the …
WhatsApp: +86 18221755073
— Flocculation, rheology and surface/interface properties of ultrafine tailings with PEO were studied. ... Effect of interparticle interactions on the yield stress of thickened flocculated copper mineral tailings slurry. Powder Technol., 392 (2021), pp. 278-285, 10.1016/j.powtec.2021.07.008.
WhatsApp: +86 18221755073
— The ore body of the copper and iron mine analyzed in this study is at a great depth and is relatively scattered, but the total ore reserves are considerable. ... tailings slurry were taken at the discharge port of the processing plant's waste slurry pump to prevent the loss of ultrafine tailings particles and thus avoid affecting the test ...
WhatsApp: +86 18221755073
— Increasing population levels, growing economies, rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals, leading to growing concerns regarding their availability and the global efficiency of the mine supply chain. Mine tailings, consisting of process effluents …
WhatsApp: +86 18221755073
— In this study we investigated the possibility of reprocessing fine to ultrafine material from an exemplary tailings heap of an historic gravity separation circuit by conventional froth flotation (CFF) and by applying an oil-assisted agglomeration flotation approach (OAF). ... such as a copper-zinc-tin polymetallic mine in Yunnan, China, DHX ...
WhatsApp: +86 18221755073
— Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered …
WhatsApp: +86 18221755073
— Accelerated carbonation of ultramafic mine tailings has the potential to offset CO 2 emissions produced by mining ores from Cu-Ni-platinum group element, podiform chromite, diamondiferous kimberlite, and historical chrysotile deposits. Treatments such as acid leaching, reaction of tailings with elevated concentrations of gaseous CO 2, and …
WhatsApp: +86 18221755073
DOI: 10.1016/j.powtec.2023.119002 Corpus ID: 262138440; Effect of solution pH and polyethylene oxide concentration on surface/interface properties, flocculation and rheology of concentrated monodisperse ultrafine synthetic tailings slurry
WhatsApp: +86 18221755073
— This technology, which utilizes highshear contacting of slurry and gas, was capable of recovering valuable ultra-fine sulfide that were previously lost due to the low …
WhatsApp: +86 18221755073
— Microstructure and properties of high-strength lightweight ceramsites customised with ultra-fine copper tailings. Wei Xu, Yuyue Zhang, +4 authors. Ya Lu. …
WhatsApp: +86 18221755073
— Fig. 3 shows the zeta potential–pH behavior of unflocculated copper tailings slurry in the presence of Ca(II) ions. According to the zeta potential test, the zeta potential is strongly negative, ranging from −59.56 to −21.01 mV, over the entire ... flocculation and rheology of concentrated monodisperse ultrafine synthetic tailings slurry ...
WhatsApp: +86 18221755073
— An increased rotation speed enables the ultrafine scheelite particles to report to the concentrate rings that are supposed to report to the tailing stream with the wash water. ... Recovery of Zinc and Copper from Mine Tailings by Acid Leaching Solutions Combined with Carbon-Based Materials. Appl. Sci., 11 (2021), p. 5166, …
WhatsApp: +86 18221755073
— As ore grades fall, the amount of tailings production for the same copper production is expected to rise. Flotation recovery of copper sulfide from the El Teniente plant has deteriorated in recent years, in this regard ultrasound treatment of tailings for enhanced copper recovery was evaluated in laboratory experiments.
WhatsApp: +86 18221755073
— However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered secondary resources or future deposits of copper. ... called ultrafine ...
WhatsApp: +86 18221755073
— Response surface methodology is used to optimize the leaching process for refractory flotation copper tailings. The proportion of the refractory combination oxide copper (chrysocolla) is 64.84%. At present, few studies have examined the leaching of chrysocolla. In this study, we examine the effects of several variables, including the amount of …
WhatsApp: +86 18221755073
— 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, …
WhatsApp: +86 18221755073
— The only copper mineral identified in the ultrafine size fractions of the rougher tailings was liberated chalcopyrite. The two tailings samples A and B also showed …
WhatsApp: +86 18221755073
— Cemented paste backfill (CPB) is a key technology for green mining in metal mines, in which tailings thickening comprises the primary link of CPB technology. However, difficult flocculation and substandard concentrations of thickened tailings often occur. The rheological properties and concentration evolution in the thickened tailings remain …
WhatsApp: +86 18221755073