Economic potential and environmental impact of metal recovery …
Several plants recover the copper contained in the copper slag by flotation. This method is generally appropriate for liberated metallic copper and sulfide minerals. It is unsuitable for recovering base metals such as cobalt, zinc, and nickel and forms of oxides or doped slags ( Aatach et al., 2020 ).
Environmental and Socioeconomic Impact of Copper Slag—A …
Therefore, utilization of copper slag for recovering iron can be used to feed the steel plant, stimulating its resurrection. This can also help in the waste management of slag, thus reducing environmental pollution. Most slags contain 40 wt.% iron, and extraction of this iron from CS is ideal [ 70 ]. 2.2.
Copper mining and production | Institute for Rare Earths and Metals
The Chilean mining company has increased its copper production by 15 percent to 477 kilo tonnes. With 1,20 USD per pound, the net cash costs were 20 percent lower than in the previous year. Incorporated here are the increased prices for gold and molybdenum by - products of copper production.
Sustainable and Comprehensive Utilization of Copper Slag: A …
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 …
Pressure Leaching of Copper Slag Flotation Tailings in …
PDF (7 ) Get e-Alerts SUBJECTS: Copper, Extraction, Iron, Leaching, Metals Abstract In this study, a hydrometallurgical method for the recovery of copper, cobalt, and zinc from …
Utilization of flotation wastes of copper slag as raw material in
In this study, the flotation wastes of copper slag (FWCS) obtained from The Black Sea Copper Works (Samsun, Turkey) was used. The chemical compositions …
SUSTAINABILITY OF COPPER SLAG PROCESSING FROM NEW
Approximately 24,6 million tons of copper slag is generated each year from world copper production (Gorai et al., 2003). ... Based on the achived results that can be concluded that the flotation of copper slag was relatively inefficient, recoveries rarely being above 30 %, so that the flotation tailings contain between 0,3 and 0,4 % copper, of ...
How to Recover Copper from Slag by Flotation
Possibilities for minimizing copper losses in converter slags include: (1) settling the molten slag to recover entrained matte and copper, (2) smelting the slag …
The potential for copper slag waste as a resource for a circular
Copper slag waste has continued to cause increasing concerns due to the huge volumes being produced annually worldwide. This paper presents a review of copper slag as a potential resource for cobalt and copper metals for a circular economy.An overview of the chemical and mineralogical characterisation of copper slag from 21 …
A Study of the Optimal Model of the Flotation Kinetics of Copper Slag
Discover the world's research. 25+ million members; 160+ million publication pages; ... In the copper slag flotation plant is achieved unexpectedly poor metal recovery of copper (31,66%), gold (22 ...
Comprehensive review on metallurgical recycling and cleaning of copper slag
Flotation is an effective physical beneficiation for the recovery of copper in metallic and sulphide states entrapped in a copper slag by fine grinding, and addition of one or more corresponding flotation reagents, such as a collector, frother, depressant, pH regulator, dispersant, flocculant, or vulcanising agent.
Application of Attainable Region Technique to …
Copper slag is a hard material produced from smelting copper-bearing ores. Over the years, research has prioritized utilizing slag as a secondary source of base metals. This paper focuses on the …
BACKGROUND REPORT SECONDARY COPPER …
and chemicals that facilitate flotation. Compressed air and the flotation chemicals separate the ground slag into various fractions of minerals. Additives cause the copper to float in a foam of air bubbles for subsequent removal, dewatering, and concentration. Leaching is used to recover copper from slime, a byproduct of electrolytic refining ...
Element Distribution and Migration Behavior in the Copper Slag
Copper slag is a solid pollutant with high recyclability. Reduction and separation are regarded as effective disposal methods. However, during the melting process, the separation and migration behavior of elements in the copper slag is complicated. Thus, the formation of pollutants cannot be controlled merely by optimizing the operation …
Pressure Leaching of Copper Slag Flotation Tailings in …
It has been estimated that for every ton of copper produced, approximately 2.2–2.5 tons of slag is generated as a result of the relatively low grades of copper concentrates now available. 2 There are several copper smelting plants throughout the world, and this has resulted in the production of approximately 40 million tons per year of …
A comprehensive review on the recovery of copper values from copper slag
The mixed collectors render higher selectivity and adsorption capability on the slag surface, thereby inducing higher separation efficiency. However, the application of mixed collectors in copper slag flotation must be established in plant practices. b. Cu values in the slag in the form of oxides do not respond very well to xanthates.
The Recovery of Copper from Smelting Slag by Flotation …
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 …
Enhancing the flotation recovery of copper minerals in smelter …
Currently, the slags are sent to a milling and flotation plant for liberation and recovery of residual copper. The copper recoveries realized in the plant are much lower than expected and it has been postulated that some copper minerals may be occurring …
(PDF) Recovery of metal values from copper slags by flotation …
Chemical analysis of smelter slag sample obtained from Flotation plant in Bor, Serbia, showed that it contains 3.56% of copper, of which over 73% is in the sulphide form, as well as 0.58 g/t of ...
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Development of a grinding model based on flotation performance
Moreover, the flotation kinetic model of copper slag was established and the results showed that the movement of copper slag in the flotation process conforms to the first-order kinetics. The addition of sodium carbonate increased the stability of the pulp and improved the flotation kinetics greatly, resulting in a better flotation performance.
Enhancing the flotation recovery of copper minerals in smelter …
The slags produced from the NCS furnaces (TSL furnace, copper converter, reverberatory furnace) contain copper ranging between 0.8 to 5% w/w. Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in excess of 0.9% Cu.
Flotation of copper sulphide from copper smelter slag using …
This paper discusses the differences in the performances obtained in the froth flotation of copper smelter slag with selected collectors such as sodium iso-propyl …
Chemical Composition Data of the Main Stages of Copper
After the flotation stage, the copper concentrate proceeds to a pyrometallurgical route which involves a smelting step, where a molten high-Cu sulfide matte is obtained, followed by a converting step, where iron and sulfur present in the matte are oxidized, producing blister copper, while also generating dust and slag . The blister …
Recovery of copper from copper slag and copper slag flotation …
Copper can either exist in sulphide or oxide phase but in smelter slag copper is found to exist in sulphide phase with [26] indicating that copper in sulphide phase was 0.81 (wt.%) whereas in ...
The Challenges and Prospects of Recovering Fine …
Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are …
Application of Thionocarbamates in Copper Slag …
In this paper, the results of the study of application of thionocarbamates in copper slag flotation are presented. Chemical analysis of smelter slag sample obtained from Flotation plant in Bor, …
Minerals | Free Full-Text | Mineralogical Properties of the Copper
In order to make the flotation processes more efficient for the recovery of copper from the slag, more knowledge is required on the form and origin of the copper losses in the slag during copper production [6,10,15,16,17,18]. Mineralogical characterization of copper in the slags of the SarCheshmeh smelter plant has not been …
Review on Comprehensive Recovery Valuable Metals and
Shamsi et al. [] studied the effect of copper slag particle size on the flotation effect, the highest copper recovery efficiency of 79.89%was achieved when the grinding time was 80 min and the grinding size was 48 μm [].Sibanda et al. [] controlled the size of copper slag and flotation reagents to improve copper recovery by 16% when the …
A comprehensive review on the recovery of copper values from …
The researchers reported that particle size, reagent type, reagent dosage and slurry pH are the significant operating variables governing the flotation of copper slag. …