2016-8-31 · RECOVERY OF VALUES FROM A PORPHORY COPPER TAILINGS STREAM *Michael J. Mankosa1, Jaisen N. Kohmuench1, Lance Christodoulou1 and Gerald H. Luttrell2 1Eriez Flotation Division 2200 Asbury Road Erie, Pennsylvania USA 16506 (*Corresponding author: [email protected] )
2017-6-9 · Flotation tailings, obtained by flotation of copper ore, in its composition in addition to heavy metals also contained reagents (ac-tivators, deprimators and frothers) and thus represent a threat to the environment. The solution to this problem can be achieved by selection and applying the ap-propriate methods of rehabilitation of de-
2017-1-13 · copper tailing samples, respectively. A stress-controlled cyclic triaxial system (DDS-70, Beijing New TechnologyResearchInstitute,Beijing,China)wasusedtostudythe cyclic properties of the tailings. Both the cyclic strength and cyclic modulus tests were carried out according to ASTM standards
2013-11-26 · 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%.
2016-5-24 · classification, flotation, regrinding, thickening and filtering and finally the tailing removal in tailing pond. Final product is the copper concentrate consisting 20% Cu, 21 g/t Au and 25 g/t Ag, with following recoveries: 88% for cooper, 60% for Au and 35-40% for silver. THE LABORATORY INVESTIGATIONS The investigation should be to serve as a
2015-12-10 · Effect of Copper Sulfate on Copper Recovery in the Flotation Process. The effect of copper sulfate on copper recovery were studied at pH 9.8–10.2, xanthate concentration 6.66 × 10 −5 mol/L as collector and 2# oil concentration 10 mg/L as frother. The activation time was fixed at 3 min.
2021-8-27 · Since 2004, the Fushe Arrez flotation plant has produced a copper concentrate at 21. 22 wt.% Cu from the only two mines still active in the district: Lak Roshi and Munella. These provide ore to the plant, that, after comminution, is sent to a set of flotation cells ... Environmental Impact Variability of Copper Tailing Dumps in Fushe Arrez ...
Although copper slag had trace amounts of heavy metals like As, Cd, Cu, Cr, Pb and Zn in its composition, they were found to be stabilized due to their encapsulation by the bitumen present in asphalt mix . Copper tailing is the waste rock remaining after ore has been processed to remove the copper.
Application of flotation for upgrading and recovery of copper (Cu) and molybdenum (Mo) con-tained in flotation tailings from a copper/molybdenum mine was investigated in this study. The sam-ple contained mainly pyrite (FeS2) and quartz (SiO2) as dominant phases with Cu and Mo contents at 0.38% and 0.23% respectively.
2009-3-21 · the copper content) were produced during that period, as illustrated by Figure 1. According to the RTB Bor archive and the pub-lished data , the average copper content in the processed ores varied from 4%, at the very beginning to 0.6% at the end of the Old Flotation Plant works. Copper content in the flotation tailings had been
2013-9-7 · copper ores by a flotation process, that are copper content in the feed, concentrate and tailing, and three generated upgrading parameters, that are concentrate yield, Cu recovery in concentrate and non-Cu components recovery in tailing. The ARIMA models were developed for the copper ore parameters to characterize the
2021-3-1 · 2.2. Methods. Flotation experiments were performed in a 2,5 L Denver flotation cell to upgrade Cu and Co (bulk flotation) recoveries from flotation tailings.A specific mass of the tailing sample was poured into 500 mL of water to prepare slurry/feed with specific gravities in the range of 1,15 to 1,25.
2014-12-24 · RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.
2015-11-11 · 32% for the third rougher flotation cell, 20% for the fifth rougher flotation cell and 16% for the ninth rougher flotation cell (Vazifeh et al., 2010) The final plant tailing consists of the last rougher flotation bank tailing and scavenger one. The rougher and scavenger concentrates are pumped to hydrocyclone clusters.
2021-3-27 · Our work presented heavy metal contents, microbial composition and resistance genes in a copper mine tailing of the largest copper mine in China, and these data will of great use in the surveillance, maintenance, and remediation of this tailing.
Figure 8. Copper biosorption kinetics of Gracilaria chilensis for synthetic and leached tailing (PLS) solution at pH 1.5 and biomass concentration of 0.5 g/L. Figure 9. Desorption/adsorption effectivity of copper by two desorbing agents, HCl and H 2 SO …
2018-1-4 · Samples from flotation tailing dump were treated by the agitation leaching method. The mine water from the accumulation Robule (mine waste water) was used as leaching solution with the following ... Behaviour of non-standard composition copper bearing anodes from the copper refining process, Journal of Hazardous Materials, 182 (1-3): 2010, 55–63.
2017-6-9 · flotation tailings were taken from the Old Flotation Tailing Dump of the Mining and Smelting Complex Bor in Eastern Serbia. Experimental testing was carried out in order to increase the leaching degree of copper with addition of oxidants during leaching. Using the Fe 2(SO 4) 3 as an oxidant, the achieved copper leaching degree was 76.8%.
2017-5-26 · Flotation behavior of copper and nickel from mine tailing was investigated un-der varying concentrations of PAX ranging from 0 g/t to 200 g/t when other flo-tation parameters were fixed at 200 g/t of MIBC concentration, 50 g/t of pulp density, slurry pH of 5400 rpm of stirring speed and 6 minutes flotation time. As
2012-5-3 · produced by flotation (International Copper Study Group, 2012). In 2011, about 60 percent of primary copper produced in the United States originated from flotation (Daniel E. Edelstein, Copper Commodity Specialist, U.S. Geological Survey, written commun., March 20, 2012).
2018-1-10 · Copper sulfate was adopted as the activator for cyanide depressed chalcopyrite. Under flotation conditions of a collector concentration of 30 g/t and 200 g NDAD/t, the resultant influence of the activator dosage (CuSO 4) on Cu recovery and grade is shown in Fig. 7. It is apparent that the recovery of Cu increased with increasing activator ...
2019-9-1 · The pyrite grade in the fresh tailing sample and in the flotation product was determined indirectly from the content sulfur, copper and iron. Calculations carried out considering the elemental chemical composition presented in Table 1 and the mineralogical species that contained sulfur, identified by the XRD analysis, allowed to determine that the fresh tailings sample contained 4.56% FeS 2 ...
2019-6-11 · The research results on floatability of old gold-bearing tailings are presented. The complex material composition and process features of processing waste are governed by difference in treatment of various ore types (sulfide, oxidized and mixed) at processing plant, as well as with supergene processes in the tailings pond. Feasibility of re-flotation of tailings is discussed. It is found that ...