If grinding is not fine enough for efficient flotation, copper is lost in tailings. In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved ...

The world experiences show that copper can be cost-effectively valorized from flotation tailings. One example is the old flotation tailing dump of the Miami mine in Arizona [1]. The old Bor flotation tailing dump is located on the border of urban and industrial part of town, and beneath it a collector of municipal waste water is situated.

Copper mining and processing have a profound impact on the environment producing a huge amount of waste worldwide.5 One of the largest mines in Ser-bia is Serbia ZiJin Bor Copper. Beside other mine wastes, post-flotation tailings (PFT) dumps as a result of copper …

In addition, the depression effect of hexacyanoferrous and hexacyanoferric complexes on chalcopyrite flotation is pronounced.17 Therefore, in order to recycle copper from cyanide tailings, it is necessary to eliminate depression effect of cyanide. At present, many studies of chalcopyrite activation are based on no depression.19,20 In this case, copper sulfate is usually used to activate ...

Commercial porphyry copper ores usually contain copper grades between 0.5% and 2%1. Minor amounts of gold are often present in these orebodies2. The concentration of gold in the majority of large-scale copper/gold ores is low, typically around 1-2 g/t3,4. Flotation is the principal method of pre-concentration for copper and gold5,6. Thus ...

The result showed that 62.7% and 61.7% copper were dissolved by bioleaching, while 53.8% and 57.4% by acid leaching in flotation and acid leaching tailings, respectively. In addition, mineralogical forms of copper were quite noteworthy since copper sulfide mineral extraction was significantly improved in …

The invention discloses a copper oxide ore flotation agent. The copper oxide ore flotation agent comprises, by weight, 100-170 parts of sodium silicate, 150-100 parts of sodium sulfide, 20-25 parts copper sulfate, 10-17 parts of ammonium dibutyl dithiophosphate, 100-170 parts of sodium o-ethyl dithiocarbonate and 10-20 parts of terpenic oil.

2.1. Mine Tailing Composition and Analysis The mine tailings sample used in this study was taken from BCL Limited mine, Selebi Phikwe, Botswana. The mine tailing is represented as flotation tailings in the form of mud containing residual metal sulfides in the form of chalcopyrite, pyrite, pyrrhotite and pentlandite and reagents after flotation.

Gulin provide the gravity separation of copper and zinc tailings solution case for you. … composition of copper ore Flotation tailing India for sale – SBM Mineral Processing … Gold Flotation tailing – SBM Mineral Processing Equipment. … the waste from this process is the tailings.

slag flotation tailings are inferior in terms of leaching when compared to the slag because most of the liberated copper phases have been removed by flotation. Based on the chemical compositions of the slag and the slag flotation tailings (Table 1), it can be concluded that the copper dissolved from the slag flotation tailings mainly

The contents of sulphur, zinc, and copper were determined by ICP analysis. The gold grade was determined by fire assay. The chemical composition of the different tailings' samples and the calculated sulphide composition are presented in Table 2. Tailings' samples P and D have low sulphur contents.

The present study focused on the re-processing of copper and nickel from mine tailings. In this work, recovery of copper and nickel from mine tailing by combined process of flotation and high pressure oxidative leaching were considered. In the first stage, effects of flotation parameters including collector type, collector dosage, and pH and pulp density were examined.

(Zengeni, 2016) and particle size composition will facilitate and accelerate the design process of thickened tailings transport installations. 2. RESEARCH METHODOLOGY 2.1 MATERIAL FOR TESTING Samples for testing were taken from copper ore flotation TSF. The material was taken from two different storage areas.

Since then, approximately one billion tons of overburden and flotation tailings were deposited in the proximity of copper mines [3]. There is a growing interest in valorisation of copper from the mining waste of the RT or. Antonijević et al. [4] tested leaching of copper from flotation tailings of the copper …

Abstract:The WO 3 grade of flotation tailings from a copper mine is 0.056%,while can be comprehensively recovered. The mineral composition of the tailing is relatively complex. The tungsten ore is mostly scheelite and there are also trace amounts of wolframite and tungstite. The metal sulfide minerals are mainly pyrite and trace amount ...

As copper tailings appear in ground form, the grading of copper tailings reported by Gupta and Thomas (2013) and Nitish et al. (2013) has a sizeable silt fraction of 0.06–0.002 mm. Copper tailings are considered to be finer than CS, which usually has a dominant sand fraction. Table 6.5 compares the geotechnical properties of copper tailings to those of CS, which have been reported in this ...

flotation tailings. After leaching process of flotation tailings, the enriched copper bearing solution was obtained with favorable qualitative-quantitative characteristics for the process of solvent extraction and electrolytic copper extraction (SX-EW process). This would be result both into economic and

Comparing the flotation tailings with the waste copper residue, copper with a grade of 1.12% in tailings is of difficulty to recover through flotation, further demonstrating the necessity of leaching tests for the tailings. 1 Results of typical chemical composition analysis of the flotation tailings Component % Cu 1.12 CaO 18.95 MgO 2.16 Fe 7 ...

Copper tailings supplied by Hindustan Copper Limited, Khetri, Rajasthan, India; was used. (Specific gravity-3.10, fineness modulus-1.573 and confirming to zone I as per BIS 1970) The particle size distributions of aggregates are shown in Fig. 1 and chemical composition of copper tailing is given in Table 1. Download : Download full-size image ...

A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more parallel ...

US5051199A US07/410,051 US41005189A US5051199A US 5051199 A US5051199 A US 5051199A US 41005189 A US41005189 A US 41005189A US 5051199 A US5051199 A US 5051199A Authority US United States Prior art keywords mineral particles froth weight flotation Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

01 Preferential flotation process. The preferential flotation process refers to obtain the copper concentrate, lead concentrate, zinc concentrate and tailings from the pulp successively according to the floatability order and floating velocity of copper, lead and zinc mineral in the ore.

found that a great effect on copper leaching has the pyrite/flotation tailings: ratio. The best results were achieved by sulphating of 5.00 g slag with 2.00 g of pyrite or 3.00 g of tailings. Keywords: smelter slag, roasting, pyrite, leaching * University in Belgrade, Technical Faculty in Bor, VJ 12, 19210 Bor, Serbia

to 0.6% at the end of the Old Flotation Plant works. Copper content in the flotation tailings had been changing in the same period from 0.5% at the begin-ning to less than 0.1% at the flotation process ending, depending on the copper ore quality and the flotation process parameters applied at that time. Characterization of the OFT

Defense Thèse de doctorat : Univ. Genève, 1999 - Sc. 3125 - 1999 Collection Terre et Environnement; 18: Abstract In the present work six flotation tailings impoundments at five flotation plants (Piuquenes, Cauquenes, El Salvador, Ojancos, P. Cerda) located in different climatic zones of Chile were selected to investigate the mineralogical and geochemical changes taking place in copper ...

flotation of slag tailings using sulphuric acid solutions, without or with the addition of either ferric sulphate or hydrogen peroxide. However, the maximum copper extraction attained with the slag was modest at about 63%, whereas that obtained with the slag flotation tailings was as low as 33% (Urosevic et al., 2015). Accordingly, the objective

Production of copper concentrate by flotation of smelter slag has started in 2001. Flotation concentrate goes to the Copepr Smelter once more for production of cop-per cathodes and the rough flotation tailings go to the flotation tailing dump. Copper recoveries in the flotation process of smelter slag reaches the value of about 45- 50%.

Material constitution of tailings of copper–molybdenum flotation (CMF) The test material was samples of CMF tailings with the following chemical composition, %: 0.2–0.5 Сu, 0.1–0.2 Мо, 25– 35 Fe total, 28–35 S total, 31.9 S

The mineral composition of copper–cobalt ores is more complex than that of copper sul-fides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals.

Tailings. Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction ( gangue) of an ore. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and …

According to the composition of copper tailings, various useful components such as gold, iron, silver, wollastonite, fluorite, etc. can also be selected. In the process of the reprocessing of copper tailings, sulfide flotation and leaching methods can be used for the reprocessing of copper tailings.