Semantic Scholar extracted view of "A study of the reprocessing of fine and ultrafine cassiterite from gravity tailing residues by using various flotation techniques" by T. Leistner et al. ... The Challenges and Prospects of Recovering Fine Copper Sulfides from Tailings Using Different Flotation Techniques: A Review. Muhammad Bilal I. Park +4 ...
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
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 ...
Dissolution of zinc, iron and copper was also monitored during the leaching tests. The findings demonstrated that, the tailings sample is highly refractory with low gold recoveries (i.e. 40.2% Au ...
Copper content of the flotation tailings, which is the most important indicator, ranged from 0.26 to 0.39 percent. Rougher flotation data for individual products from slags slow cooled in the induction furnace and ground for 30 minutes are shown in table 4. Similar copper recovery patterns were obtained in flotation tests made on slags prepared ...
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 …
Paste backfill prepared with ultrafine tailings often faces difficulties in meeting engineering requirements. To address the challenge of using ultrafine tailings, this work utilized a slag cemented ultrafine tailings paste backfill (SCUPB) composed of slag, Portland cement, and desulfurized gypsum as the cementitious materials, with a …
The results showed that adding a suitable amount of copper tailings with fine particles (stone powder) close to 5% resulted in a denser structure and more C-S-H …
Particle size analyses were carried out on copper mine tailings from Lohan, Ranau Sabah. About 99.64% of the tailing particles were < 1000 /lm in size while 52.23%,15.72% and 4.87% were < 125 j.l.m, < 62.5 pm and < 38 j.l.m/respectively. The amount of heavy metal extracted by 0.5 HCI was in the order Mn > Cu > Ni > Zn > Co > Cd and is relatively …
Semantic Scholar extracted view of "Effects of incorporating large quantities of copper tailings with various particle sizes on the strength and pore structure of cement-based materials" by Sung-Ching Chen et al. ... Rheological and mechanical properties of full-tailings backfill material prepared by ultrafine-iron-tailings-powder-based ...
Characterization of copper sulfide tailings. Copper sulfide tailings were collected from tailing ponds at the Yangla Copper Mine (YCM), Yunnan Province, China. A sufficient amount of tailings, produced in a proportion of 96.53%, was obtained after preprocessing by rough grinding flotation and middling regrinding separation.
Semantic Scholar extracted view of "Copper recovery from tailings through bioleaching and further application of bioleached tailings residue: Comprehensive utilization of tailings" by Wei Chen et al. ... Paste backfill prepared with ultrafine tailings often faces difficulties in meeting engineering requirements.
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, …
To determine the hydrophobic characteristics of chalcopyrite, a mixture of sized pure chalcopyrite and porphyry copper tailings sample B was floated. The chalcopyrite was sized into three fractions, 20 by 10 µm, 10 by 5 µm, and minus 5 µm. ... For each conditioning method, the copper recovery for the ultrafine sulfides is shown in …
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 ...
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 …
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 …
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain xanthate) is proposed for the first time.
Ultramafic and mafic deposits are mined economically for valuable metals such as nickel, cobalt and copper, and make up 7% of the total annual global metal value (Peck and Huminicki, 2016). ... The tailings increased to a maximum of 0.83% carbon within the 0–2 cm region while the deepest region of 17–24 cm increased to only 0.32% …
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 ...
lost as tailings could be economically recovered using a suite of novel flotation technologies developed for upgrading ultra-coarse and ultra-fine particles in the …
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 …
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 ...
Ultrafine iron tailings powder. Supersulfate cement. ... and the mass content of Al 2 O 3 in the extract solution can be determined on the basis of the copper sulfate back titration method. According to the general chemical formula of ettringite (3CaO·Al 2 O 3 ·3CaSO 4 ·32H 2 O), ...
Ultrafine grinding (UFG) was proposed as a pretreatment method prior to cyanide leaching of old plant tailings of a refractory silver ore. Direct cyanidation of the as-received tailings (d80: 100 µm) led to a low silver extraction of only ≤43% over 24 h. A size-based diagnostic study has demonstrated that the refractoriness of the tailings is …
Section snippets Materials. Due to the main component of tailings of some kinds ores such as some gold ore and copper ore is SiO 2, and to avoid the influence of other components of the tailings on rheological and interfacial properties, in this work, commercial silica tailings particles were chosen as a model system to investigate the …
Microstructure and properties of high-strength lightweight ceramsites customised with ultra-fine copper tailings. Wei Xu, Yuyue Zhang, +4 authors. Ya Lu. …
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 …
The tailings treatment includes three key aspects: (i) settling efficiency for flocculation and sedimentation; (ii) sediment moisture content for concentration and …
The CPB plant graded unclassified tailings with hydrocyc-lones. Then, the graded tailings (coarse particles) are dehyd-rated and concentrated to produce a high-concentration tail-ing paste that would be mixed with cement to make a fresh CPB using a twin-shaft mixer [21]. In 2006, the Yunnan Huize lead-zinc Mine was the first to use a deep cone
