Improving Flocculation Performance of Copper Flotation …
This study investigated the floccula-tion performances of a new generation UMA (Unique Molecular Architecture) technology polymer and conventional polymers in …
(PDF) Copper Upgrading and Recovery Process from Mine
The copper concentrate obtained from the flotation of tailings [30] was used as feed sample in this study. To achieve an excellent copper dissolution from the concentrate of flotation tailings ...
Pressure Leaching of Copper Slag Flotation …
High-pressure oxidative acid leaching of SFT was carried out to assess the effects of sulfuric acid concentration, oxygen partial pressure, reaction time, solid/liquid ratio, and temperature on the extraction of copper, cobalt, …
(PDF) Process mineralogy as a key factor affecting …
Froth flotation is a physicoc hemical process that has been. A. Bahrami et al., Process mineralogy as a key factor affecting the flotation kinetics of copper sulfide minerals 431. used for more ...
Prediction and Optimisation of Copper Recovery in the …
A hypothetical optimisation solution assessment showed that SA provides the best set of solutions for the maximisation of rougher copper recovery, obtaining a throughput of 638.02 t/h and a total net gain percentage of 14%–15.5% over the other optimisation algorithms with. a maximum copper recovery of 94.76%.
Development of Copper Recovery Process from Flotation Tailings …
Flotation tailings are termed as the rejected product of the flotation process, and according to the reported literature data, 90-95% of plant tailings are produced from the flotation process [31 ...
The Development of Innovated Complex Process for …
The Development of Innovated Complex Process for Treatment of Old Flotation Tailings of Copper-Zinc Sulfide Ore Molecules. 2024 Mar 29;29(7) :1550. doi ... The results suggest that acid leaching can be an effective approach for processing old flotation tailings, which allows the extraction of base metals from these wastes and …
Improving Flocculation Performance of Copper …
The tailings generated in copper mining plants typi-cally contain clay and provide a variety of sedimen-tation challenges because of their colloidal size and amorphous nature. As a result, many studies in this area have been conducted. In their occulation studies on copper tailings, Yunyan and Dong (2019) revealed
Dynamic froth stability of copper flotation tailings
Samples of copper tailings were collected from the overflow and underflow streams of the primary hydrocyclone at the processing plant discussed in Section 2.1.The d90s of these samples were 63.7 μ m and 279 μ m respectively and the particle size distributions of each can be found in Fig. 1.The samples were obtained as slurry, which …
(PDF) Leaching of flotation tailings
Based on the results, shown in Figure 4, the optimal ratio of S:L for the copper leaching process from. flotation tailings is 1:2.5. The highe st degree of copper leaching of 56% was achieve d in ...
The Challenges and Prospects of Recovering Fine …
In the actual flotation process, a significant quantity of copper sulfide particles (finest and coarsest fractions) is lost in tailings, which are disposed of into the tailings storage facilities (TSFs). Since the conventional coppe r ores have been becoming depleted, copper tailings are gaining increasing attention as potential resources.
Mitigating the generation of acid mine drainage from copper …
The feasibility of using standard flotation techniques for the desulfurisation of typical porphyry-type copper sulfide tailings is demonstrated through the manipulation of collector dosage to reduce the tailings fraction which is acid consuming to 9 wt.% of the total tailings, and the sulfur content in the benign tailings fraction to 0.2%.
Response Surface Methodology for Optimization of Copper …
Response surface methodology is used to optimize the leaching process for refractory flotation copper tailings. The proportion of the refractory combination oxide copper (chrysocolla) is 64.84%. At present, few studies have examined the leaching of chrysocolla. In this study, we examine the effects of several variables, including the …
Development of copper recovery process from flotation tailings …
The total copper recovered from its ore through flotation process is about 56% [6,18], which indicates that the flotation tailings still contain valuable copper components such as chalcopyrite. In addition, old flotation tailings sometimes have a higher copper grade (0.2–0.4%) than that of low‒grade ores (0.2‒0.3%).
Ferric leaching of copper slag flotation tailings
In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved by ferric leaching, and Cu content in tailings is reduced from 0.78% to 0.24%.
Evaluation of the possibility of copper recovery from tailings …
The present research aims at recovering copper by reprocessing of tailings at China Molybdenum Co. Ltd. (CMOC) from bench-scale to industrial tests. It focuses on the determination of the reagents' dosage and pulp concentration that enables to obtain the highest recovery of copper by flotation of the studied tailings.
Development of copper recovery process from flotation …
An efficient copper recovery process (total copper recovery of 86.2%) is proposed for the utilization of concentrate of flotation tailings as one of the new copper …
Extraction of Gold and Copper from Flotation Tailings …
The present study investigated the extraction of gold and copper from gold sulfide flotation tailings using a cyanide-free leaching method, i.e., glycine-ammonia solution in the presence of permanganate. The characterization indicated that the tailings sample contained 1.11% copper, 10.10% iron and 2.1 ppm gold.
Investigation of the possibility of copper recovery from the flotation …
The flotation tailings pond of the Bor Copper Mine poses a great ecological problem not only for the town of Bor but also for the surrounding soils and watercourses. Since the old flotation tailings contain about 0.2% of copper on the average, we investigated their leaching with sulphuric acid in the absence and presence of an oxidant.
Economic potential and environmental impact of metal …
After copper recovery by flotation, the remaining part of the slag is considered waste and disposed of in the slag dump area. However, even after copper recovery, copper slag flotation tailings (CSFT) may still contain several metals in varying amounts. However, the complexity and low metal concentration have undermined the …
Heavy metal and nutrient uptake in plants colonizing post-flotation …
Introduction. Mining and processing of copper ores extensively alter the environment, and the main difficulty is a huge amount of flotation tailings which comprise even 96% of the mass of run-of-mine ores with worldwide production estimated to be two billion tons in 2011 (Gordon 2002; Onuaguluchi and Eren 2012).These tailings pose an enormous problem …
Dynamic froth stability of copper flotation tailings
This paper presents a review of chemical composition data of the main stages of copper production from sulfide minerals, such as (1) copper minerals, (2) flotation tailings, (3) flotation ...
The influence of the flocculant on the process of thickening …
tailings of copper ore flotation from OEP. They were installed at three heights in relation to the axis of the pipeline, i.e. above the axis, in the axis and below the axis.
Ultrasound treatment on tailings to enhance copper flotation recovery
Ultrasound has been used to enhance flotation recovery of copper tailings. •. A batch flotation cell with ultrasound transducers has been constructed. •. The ultrasound field inside the cell was measured. •. Laboratory experiments show that ultrasound treatment improves Cu recovery in 3.5%.
Solvent extraction of Cu, Mo, V, and U from leach solutions of copper
Flotation tailings from copper production are deposits of copper and other valuable metals, such as Mo, V and U. New hydrometallurgical technologies are more economical and open up new possibilities for metal recovery. This work presents results of the study on the extraction of copper by mixed extractant consisting p-toluidine …
Investigation of the Possibility of Copper Recovery from the Flotation …
The total copper recovered from its ore through flotation process is about 56% [6, 18], which indicates that the flotation tailings still contain valuable copper components such as chalcopyrite ...
(PDF) A Review of the Flotation of Copper Minerals
economic to acid heap leach the stockpile. The recovery of these copper minerals by flotation or. hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground ...
Development of copper recovery process from flotation tailings …
Sulfide copper mineral, typically Chalcopyrite (CuFeS2), is one of the most common minerals for producing metallic copper via the pyrometallurgical process. Generally, flotation tailings are produced as a byproduct of flotation and still consist of un‒recovered copper. In addition, it is …
HydroFloatTM Case Study: Copper Recovery from …
• Install a HydroFloatTM circuit to treat the full flotation tailings stream from Train 3 (T3) of the Concentrator 1 flotation circuit (~9Mtpa) • Primary objective to recover gold and …
Statistical investigation of flotation parameters for copper …
A brief statistical analysis has shown that froth flotation is a reliable process to recover copper from flotation tailings. Collector dosage remains the main parameter …