To extract copper, froth flotation, a physiochemically based separation method, is widely applied for processing this mineral using surfactants so-called collectors (Azizi et al., 2020).
It can be mixed with xanthate (amyl-xanthate, etc.) to improve the flotation index of the copper mine. CSU-A Novel thionocarbamate collector with three hydrocarbyls. ECTC It has strong collection capacity for copper, but weak for pyrite, with a low flotation PH. It is a good collector for the separation of copper and sulfur. Combined Collectors
Mixed copper ore beneficiation generally adopts sulfidation flotation method, and there are two technological processes: one is to select copper sulfide minerals first, and the tailings are sulfided before …
With the industrial depletion of high-grade copper sulfide resources increasing, the recovery and utilization of copper oxide ore have gradually become a substitute for copper resources [1,2].Froth flotation is an economic separation technique which has been widely used in the copper mining industry to recover copper minerals …
Flotation Frothers – Frothing Agents. The next reagent that is added is the Flotation FROTHER. The frother strengthens the surface tension of the air that is injected into the flotation cell. As the air …
In a simplified sense, the role of the flotation machine is twofold: to maintain an agitated (mixed) pulp in the cell, and to introduce air bubbles into the agitated pulp. Schematic of the froth flotation process …
Novel treatment for mixed copper ores: Leaching ammonia – Precipitation – Flotation (L.A.P.F.) Minerals Engineering, Volume 149, 2020, Article 106242
Concentrates of slime and sand flotation are mixed together to obtain copper concentrate and refuses are discharged to a dump. EFFECT: increase of efficiency and intensification of the...
Flotation reagents used in the processing of copper sulfide and oxide ores and their costs are presented. The combined circuit of flotation-hydrometallurgical processing of mixed copper ore at the Udokan deposit is considered. The conclusions reveal the current trends in the processing of copper ores, including the choice of …
Flotation of Copper Ores In most plants engaged in the flotation of ores containing copper-bearing sulphide minerals with or without pyrite, pine oil is employed as a frother with one of the xanthates …
If copper is to be made from an ore having a total content of 1.5 per cent., it must be concentrated or removed from the ore by some hydrometallurgical method. Flotation is generally successful for the …
The flotation feed is the tertiary grinding overflow of 80% passing –65 µm. The copper flotation circuit includes rougher and scavenger flotations, as well as several recleaner stages when rougher and scavenger concentrates are reground with a recleaner concentrate. The rougher bulk concentrate contains 4% copper with 75% recovery.
The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore comprising sulphide and oxide minerals with a view to …
The mixed (transitional) sulphide/oxide ores were stockpiled in the absence of an economic processing route due to their poor flotation response and high gangue acid consumption. Since June 2009, these mixed ores …
Different milling conditions, such as wet or dry, and use of different grinding media have a great impact on the flotation performance of sulphide minerals. In the present study, the effects of wet and dry grinding and the use of different grinding media, such as mild steel (MS) and stainless steel (SS), were investigated on a Cu-sulphide ore. The …
the rougher circuit while the rougher flotation recovery of mixed copper ore was 8% less than the . sulfide ore. Additionally, the incr ease of collector and NaHS dosages along with the size ...
After 3 min of flotation, the concentrate and tailings were filtered and dried, the concentrate was repeated to form a closed-flotation separation test. Finally, mixed concentrate of...
Here are some general steps to consider when designing a copper processing plant: Determine the ore type: Different types of copper ores (such as oxide ores, sulfide ores, and mixed ores) require ...
When using S12, the recovery of nickel and copper in flotation froth already at a concentration of 50–60 mg/l is more than 90%. It is advisable to consider the relative location of copper and nickel recovery curves for each of the agents.
The optimization process was also performed using the goal function approach, and maximum copper recovery of 92.75% was obtained using ~70 g/t collector, 110 g/t depressant, 7 g/t frother, pulp pH of 10 and 1000 rpm agitation rate. View Full-Text Keywords: sulfidized copper ore; flotation; recovery; optimization; interaction effects …
The copper ore can be divided into oxide ore (more than 30% copper oxide), sulfide ore (less than 10% copper oxide), and mixed ore (10%-30% copper oxide). The main beneficiation process of copper is the flotation, hydrometallurgy process is also used in the copper extraction process to treat refractory mixed copper ore and the refractory oxide …
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For mixed oxide and sulphide ores, CPS is unsuitable for simultaneous flotation of copper oxide and sulphide minerals, as the sulphides are usually heavily …
Flotation is the most important method for processing sulfide copper ores. Due to the high cost and environmental hazards caused by the chemical reagents used in this process (collectors, frothers, pH regulators, depressants, etc.), the possibility of replacing all these reagents or at least some of them are of special importance through environmentally …
Copper Concentrate Thickening and Filtering The final cleaned flotation concentrate flows or is pumped to a Spiral Rake Thickener. A Adjustable Stroke Diaphragm Pump, mounted on the …
Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors K. Leea, D. Archibaldb, J. McLeanc, M.A. Reuterc,* a Ausmelt Limited, AMML, Unit 3/8 Yandina Road ...
Misreported copper into tailing dramatically declines copper recovery. This study aims to find the possible reasons of copper loss to tailing and present the methods to improve …
Sulphide flotation is generally conducted in alkaline conditions, which is where the collectors are more stable. Early literature suggested that in a mixed minerals/collector system there was an optimum pH range …