Semantic Scholar extracted view of "Flotation of copper from converter slags" by G. V. Rao et al.
— In the flotation experiment of a converter slag (3.7% Cu, cooled in a refractory lined pit) with potassium amyl xanthate as collector, pine oil as frother at pH 8–9, a concentrate containing 44% Cu was obtained with 96 recovery. Co and Ni were also reported in tailings. In principle, copper slag flotation is the same as sulfide ore flotation.
— Muravyov MI, Fomchenko NV, Usoltsev AV et al (2012) Leaching of copper and zinc from copper converter slag flotation tailings using H 2 SO 4 and biologically generated Fe2(SO4)3. Hydrometallurgy 119–120:40–46 ... Jena S (1983) Pressure leaching of copper converter slag using dilute sulphuric acid for the extraction of cobalt, nickel and ...
— To recover copper from copper slag, a novel slag cleaning method was proposed. The thermodynamics and binary phase diagram of FeO–SiO 2 were …
— When the copper in the slag is largely in sulfide phases, flotation of copper slag is similar to sulfide ore flotation of copper. 64−69 In the flotation of copper slag, oxides, alloys, and metallic phases containing Co and Ni are generally depressed and concentrated in the tailings. 6 Hence, copper slag flotation tailings (SFT) may contain ...
Copper recovery by flotation Slag composition loses priority to controlled cooling of the slag. by K. N. Subramanian and N. J. Themelis In recent years, some copper smelters have …
— Reverbetory furnace slag Copper recovery Flotation Milling and grinding ABSTRACT Namibia Custom Smelters (NCS) process a range of copper concentrates in their three furnaces, namely; top submerged lance, copper converter and reverberatory furnaces, in order to produce mattes and fayalitic slags. The copper content of the slags …
Over 1.5 Mt of dumped slags, including converter slag flotation tailings, which contain up to 6000 t copper and 60,000 t zinc, are produced yearly by the copper-smelting plants of the Ural Mining and Metallurgical Company (UMMC) alone. Significant areas required for stockpiling of the slags and the products of their processing are unavailable ...
— Copper smelting slag (CSS) is commonly generated during the smelting process of the copper concentrate, it comprises a range of valuable metals, especially the valuable copper (Cu), possessing the greatest recovery value. Currently, direct flotation is commonly used to recover Cu from CSS, but the Cu recovery rate is usually below 90%. …
This work presents the study of copper extraction from smelter slag, which is subjected to sulphating. Sulphating of slag was performed by pyrite concentrate or flotation tailings at temperatures from 500 to 650°C, and the resulting calcine was leached with water. The results showed that maximum copper leaching (70-73%) is obtained from calcine, …
— In this study, a facile process for recovering copper from copper slags through flotation enhanced by sodium carbonate synergistic mechanical activation has been …
— Massive amounts of waste copper converter slags have been produced from pyrometallurgical extraction of copper from copper concentrates, and the disposal of them in landfills creates serious ...
— Currently, almost all plants converted to autogenous smelting of copper-containing concentrates use flotation of converter slags (CS) while leaving 0.55–0.90% …
— The flotation process presents several benefits, such as its cost-effectiveness, high efficiency in separation, and minimal environmental impact [17].These advantages contribute to its wide range of potential applications in the field of secondary resource recycling [18], [19], [20], [21].In China, the flotation process has been subjected …
The slags are (i) Top Submerged Lance Furnace slag (ii) reverberatory furnace slag (iii) copper converter slag (iv) final flotation plant tailings. Ø To determine the grind that gives best liberation of the copper minerals in the slag. Ø To study the influence of selected flotation reagents on the recovery of the copper minerals in the milled ...
DOI: 10.1016/J.IJMST.2013.07.022 Corpus ID: 97679016; Hydrophobic-surface of copper from converter slag in the flotation system @article{Huang2013HydrophobicsurfaceOC, title={Hydrophobic-surface of copper from converter slag in the flotation system}, author={Hongjun Huang and Hai Zhu and Yue-hua Hu}, journal={International journal of …
— The amount of copper flash smelting slag has increased during the recent years along with an increasing slag-to-metal ratio. During slag tapping, some copper sulfide is mechanically entrained. As a result, it is necessary to recover copper matte from the slag by suitable methods. At present, the most common way is slow, controlled cooling in a …
— The subsequent ferric leaching of copper converter slag flotation tailings containing 0.53% copper and 2.77% zinc with the pregnant leach solution was conducted. The effects of various process ...
— The flotation of copper slag can effectively recover copper, without recycling other valuable metals in the copper slag. However, this process requires a much higher water content and offers relatively low environmental benefits. Moreover, large areas are occupied by cinder ladles in this process, and a long time is required for slow cooling ...
— Metal Losses to the Slag in Smelting and Converting. 80% of the copper produced from ores worldwide originates from sulfide ores. The copper concentrate which results from flotation of the ore is typically smelted and converted to blister copper [].During smelting S and Fe are oxidized, where SiO 2 is added to form a liquid ferric or ferrous …
— A mixture of flash smelter and converter slags subjected to this experimental study was taken from the feed to the flotation unit in the Black Sea Copper Works, Turkey. Chemical analysis of the slag sample is: 2.64% Cu, 0.095% Co, 0.67% Zn, 47.2% Fe, 0.13% Pb, 0.004% Cd, 0.065% Ni, 8.5% Si, and 1.3% S.
— Economic potential and environmental impact of metal recovery from copper slag flotation tailings. Author links open overlay panel Aleyna Gümüşsoy, Mikail Başyi̇ği̇t ... Recovery of copper, cobalt, and zinc from copper smelter and converter slags. Hydrometallurgy, 67 (2002), pp. 1-7, 10.1016/S0304-386X(02)00139-1. View PDF View …
— Converter copper slag can be viewed as an important secondary resource for valuable metals, considering its high commercial value. The current research …
— Materials. The smelting slag used in this study was obtained from a copper plant in China. Mineralogical analysis, performed using scanning electron microscope (SEM) and energy dispersive X-ray spectroscope (EDS), polarizing microscope and X-ray diffraction (XRD), indicated that fayalite (Fe 2 SiO 4) and magnetite (Fe 3 O 4) phases …
How to Recover Copper from Slag by Flotation. Table of Contents. The bulk of the world's output of copper is produced by smelting copper sulfide flotation concentrates in …
— The recommended technological parameters for leaching of copper (the most important component) from converter slag flotation tailings are: pulp density of 30% (w/v), pH 1.5, temperature of 70 °C ...
— This study was designed to recover copper and cobalt hydrometallurgically from an enriched concentrate of flotation and converter slag. Three slag samples collected from the Ergani Copper Co. of ...
— In this study the effect of mixtures of copper slag and flotation tailings from copper mine Bor, Serbia on the flotation results of copper recovery and flotation kinetics parameters in a batch … Expand. 17. PDF. ... Bioleaching of the converter slag was studied on bench scale using Thiobacillus ferrooxidans, an iron oxidising bacteria, for ...
— Table 1 shows that chalcocite is the main copper bearing mineral in the converter slag. In the TSL slag, copper is in the form of chalcocite, digenite and bornite. No copper containing minerals were detected in reverberatory slag, …
— Total copper flotation recoveries before and after regrinding of the tailings using FC7245. ... note that copper in the converter and TSL slags is generally much higher.
