The final flotation tailings contained 0.11 percent copper, 0.03 ounce gold, and 0.04 ounce silver per ton, representing losses of 6.5 percent of the total copper in the ore, 5.9 percent of the gold, and 4.0 percent of the silver. Cyanidation of Fl0tation Products Cyanidation of Copper Flotation Tailing
The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical …
The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H2SO4) leaching. ... Copper, Flotation, Mine tailing, Chalcopyrite, Flotation reagent 1 INTRODUCTION Mineral resources are non-renewable and most important resources of which utilization has increased in many industries ...
The subject of the research was a sample of pyrite flotation tailings containing copper, 0.26%, zinc, 0.22%, and gold, 0.67 g/t. Investigated was an acid leaching of pyrite tailings under ...
Abstract This research aimed at recovering metals retained in the tailings from the flotation of copper (Cu) and cobalt (Co) ores conducted at the New Concentrator in Kipushi (NCK). Metals retention in the tailings (0.73% Cu and 0.37% Co) increased due to the removal of the gravity separation section from the processing circuit together with …
The dewatering of tailings is one of the serious challenges that the mining and mineral processing industries have encountered internationally. Solid–liquid separation methods are applied to wastewater, which generally consists of fine particles and water; fine particles are settled in thickeners by the flocculation method and the cleaned water is …
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 …
Acid mine drainage and potentially toxic elements release are a major source of pollution in sulfide-rich mining sites. Pyrite is the most impacting mineral due to its high acidification potential when it reacts with water under oxidizing conditions. At the Fushe Arrez dressing plant in Northern Albania, a volcanic massive sulfide copper …
The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical …
This paper is aimed at a typical complex polymetallic copper-zinc sulfide ores in Yunnan province, China, and adopted the process of bulk floatation discarding tailing under coarse grinding ...
Nowadays, the mining industry faces great economic, social, and environmental challenges (Moran et al., 2014).The major issues are water scarcity, energy supply, decrease in the ore grade, and generation and disposal of waste (Marín et al., 2020).The mining industry is the largest waste producer worldwide, accounting for …
Obtaining high recovery in copper flotation plants has been always under investigation in recent years. 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 the performance of the Sarcheshmeh copper plant flotation …
Minor metals, expressed in mg/kg, are mainly represented by copper and manganese. The tailing has a copper concentration above 1500 mg/kg, which is considered high for residual waste because the tailing used came from an old deposit and was produced by less efficient processes of ore flotation.
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 …
A combined process of flotation and high-gradient magnetic separation was proposed to utilize Yulong complex copper oxide ore. The effects of particle size, activators, Na2S dosage, LA (a mixture of ammonium sulfate and ethylenediamine) dosage, activating time, collectors, COC (a combination collector of modified hydroxyl oxime acid …
This paper is aimed at a typical complex polymetallic copper-zinc sulfide ores in Yunnan province, China, and adopted the process of bulk floatation discarding tailing under coarse grinding condition, the influence factors are researched such as grinding fineness, types and dosage of flotation reagents. When the coarse grinding size-74μm 75% and butyl …
The most used non-ferrous base metals in the world after copper and aluminum are zinc and lead. These two metals are usually present together in lead–zinc ores as well as in the tailings and wastes from the processing of the metals. ... The recovery of zinc and lead from a malic leach solution of a carbonate type ore flotation tailing by ...
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 …
Metal recovery from the copper sulfide tailing with leaching and fractional precipitation technology. Hydrometallurgy, 147–148 (2014), ... Evaluation of the replacement of NaCN with depressant mixtures in the separation of copper–molybdenum sulphide ore by flotation. Sep. Purif. Technol., 173 (2017), pp. 9-16.
In recent years, the processing of mining residues and more importantly flotation tailings have been an alternative way to secure sustainable development and metal supply [[1], [2], [3]].Recycling of mining wastes results in multiple advantages …
The copper concentrate was first prepared by flotation under the optimal conditions obtained from the previous study, which was pH 10, pulp densities 25%, collector (PAX) dosage 100 g/t-ore ...
For example, where flotation took place immediately after vanning, the residue assayed $2.60 gold and 0.30% copper, but where tailing from panning was allowed to remain under water for 6 hours …
In the process of flotation of copper ore, flotation tailings containing metal sulfides are separated and represent a special challenge for the topic of mining waste management. Tailings storage requires a large space in open dumps, which can sometimes exceed the size of mining facilities [1,3,11,14,15,16]. Tailings storage sites, or tailings ...
Assays of heads, concentrate, and tailing are required. Mill Water to Ore Ratio Requirements. Resistance of Various Materials to Crushing ... The simplest case may be represented by a low grade …
Mining and processing tailings often contain significant amounts of valuable metals, that can represent valuable sources of secondary raw materials.
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 separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered …
A representative sample of a carbonate-type Pb-Zn ore flotation tailing was collected from the tailing dump of Orex Mining Co. in Yahyali, Kayseri, Turkey. ... copper leaching rates demonstrated upward tendencies using sulfosalicylic acid from a copper oxide ore. The sulfosalicylic acid is completely ionized as the following reaction …
Geopolymers have attracted extensive attention in the marine environment because of its special reticulate nanostructure. Gel evolutions of copper tailing-based green geopolymers were studied under air, deionized water, seawater, freeze–thaw cycle and carbonization environments. Their mechanical properties and microstructures were …
Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs. Also, considerable attention is paid to automatic sensing devices …
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%).
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