In this article, to improve the recovery of copper from copper slag by flotation process, industrial tests of the modification process involving addition of a composite additive into molten copper slag were conducted, and the modified slag was subjected to the flotation process to confirm the modification effect. The phase evolution of the slag in the modification process was revealed by ...
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 originates ...
The mechanism of composite additive in promoting reduction of copper slag was revealed. In this paper, the kinetic study of direct reduction of copper slag (CS) was studied by isothermal method, and the phase transformation and growth behaviors of metallic iron particles during reduction process were clarified by X-ray diffraction, Scanning Electron Microscopy, and Energy Dispersive X …
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%.
Separating copper and arsenic has always been a major problem in the copper slag flotation process, which influences copper slag utilization and the environmental safety. A comparative study of flash smelting furnace (FSF) slag and its flotation products (concentrate and tailing) reveals the factors affecting the separation of copper and arsenic in the beneficiation process from the ...
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%.
12%Aiming at the recovery of copper from smelting slag, a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution, in which bornite was the main copper-bearing mineral after a detailed mineralogy analysis via polarizing microscope, SEM and XRD.
The conditions of flotation and magnetic separation process for unmodified copper slag is similar to modified copper slag, and the results compared with each other are shown in Figure 10. As seen in Figure 10, the iron recovering from flotation tailings of two types of slag, presents a great difference in the magnetic separation process.
A pyrometallurgical process typically allows a 93% to 97% recovery of the lead contained in the scrap. The remaining lead is lost in the slag, a residue which constitutes about 20% to 25% of the total furnace-feeding load (Nunes, 2015 NUNES, J. A. S. Lead recovery from metallurgical slag through flotation.Recife: Federal University of Pernambuco, 2015. 117 p.
a copper slag. High temperature smelting with additives to dissolve Au from the gold concentrate into a molten copper was ... cyanidation process and flotation process are widely used for gold recovery from gold ore and gold mine tailings. The cyanide leaching of the tailing may be
BHP Olympic Dam engaged Outotec to design and construct the Slag Flotation Plant on the Olympic Dam process plant site to treat recovered slag product from the smelter to increase copper production and make the facility more economical. JTMEC provided electrical construction engineering support services during the project for Outotec to ensure ...
Rao and Nayak and Piret et al. are among the researchers who managed to obtain 30–60 % of copper concentrates from the slag using grinding and flotation operations. Similarly, Somerville et al. carried out the single-stage flotation process (rougher) on the converter slag and achieved 90 % copper recovery.
the flotation process, the best technological exploitation of copper is achieved, which is very important because the the slag contains up to 6 to 7% of mobile copper. The cooling metode of slag before flotation may have a significant impact on the
Flotation process was proposed to realize the separation of silicate and silicon in MG-Si slag. • During flotation process, terpenic oil was used as the surface modifier. • The modification increased the surface wettability different between silicate and silicon. • Using this method the Si recovery rate was significantly improved. Abstract
A beneficiation plant in Henan adopted the process of air cooling- water quenching-flotation process to recover gold, sliver and copper in smelting slag, and the effects of slow cooling duration, grinding fineness, flotation modifier dosage, collector type and dosage on gold, silver and copper flotation recovery rates were studied.
The metallurgical slag used in the study: (a) at the furnace output (liquid) and (b) on the natural bre - akdown process during its storage period. (a) (b) The objective of the research was to verify the possibility of developing a flotation process for the recovery of lead contained in a metallurgical slag (consist - ing mainly of iron + lead).
Slag Flotation Deputy Plant Manager Cumerio Mar 1998 - Mar ... Ensures improvement of the technical and technological condition of the production process. Coordinates the investment projects in Flotation plant . Manager, Tailings Ponds and Slag Deposit Union Minier Med AD Jan 1995 ...
The flotation concentrate is well known that iron sulphide minerals such as arsenopryrite, pyrite and pyrrhotite are host minerals for native gold as well as 'invisible gold' [7]. The conventional cyanidation process and flotation process is widely used on gold recovery from gold ore and gold mine tailings.
Froth flotation is a process for selectively separating of hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.
Herreros et al. (6) Flotation is a process used for concentration of sulphide tried to extract copper from reverberatory and flash furnace minerals of copper, but it is used for the recovery of slags by chlorine leaching; the results show that 80 90% of valuable metals from smelter slag as well.
Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests. This article focuses on industrial flotation, which consisted of two oneyear campaigns (2016 and 2017).
characterization on specific streams from the slag flotation process and to evaluate grades and form of occurrence of the economically important metals. Coupled to this, an assessment of a combined hydrometallurgical approach to recover copper, molybdenum, cobalt and nickel from the final flotation tailings (fayalite) was targeted. 2.
Several products were obtained from the waste copper slag through the proposed process: flotation concentrate, measured 21.50% Cu; magnetic concentrate, containing 90.21% TFe and 0.4% Cu; direct ...
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.
Process steps include mining, concentration, roasting, smelting, converting, and finally fire and electrolytic refining. 12.3.2 Process Description2-4 Mining produces ores with less than 1 percent copper. Concentration is accomplished at the mine sites by crushing, grinding, and flotation purification, resulting in ore with 15 to 35 percent copper.
for flotation Removal of most gangue and collection of some byproduct minerals (e.g., Mo, Ni, Pb, Zn) to avoid further expense in materials handling, transportation, and smelting Heat-induced separation of complex sulfides into copper sulfides, iron sulfides, and sulfur; removal of sulfur as off gas (SO2) and removal of gangue via slag; in oxygen-
Flotation Process. II. Chemical processing technology: Leaching. 1. Flotation process are widely used for copper extraction. The ore pulp slurry is pumped to flotation cells for extracting. The flotation cells are divided into several parts: roughing, concentration and scavenging (the exact numbers of stages for each part should be decided by ...
At the end of the flotation process, the results aimed were not attained, and flotation yield was low. Converter slag samples were first sulfurized at 100 °C by using various ratios of H2S + H2O. Then, these samples were floated. 3.2 The Flotation of Sulfurized Converter Slag Firstly, the converter slag …
An efficient automatic slag discharging device in an ozone air floatation process comprises an annular slag collecting groove and a middle slag collecting hopper, wherein the annular slag collecting groove and the middle slag collecting hopper are arranged in a slag discharging area at the upper part of an ozone air floatation cylinder, the annular slag collecting groove is in a hollow round ...
Flotation process was proposed to realize the separation of silicate and silicon in MG-Si slag. • During flotation process, terpenic oil was used as the surface modifier. • The modification increased the surface wettability different between silicate and silicon. • Using this method the Si recovery rate was significantly improved.
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