1. Introduction. Hydrometallurgical extraction process as a typical industrial recovery procedure for production of high purity metals from oxidized ore, is an environmentally friendly approach due to the less pollution to the atmosphere and lower energy consumption [[1], [2], [3], [4]].Copper, as one of the most common and valuable metals applied in industrial …
Copper minerals, even though minor components of precious metal ores, dissolve in these cyanide leaching solutions, consume cyanide, cause fouling of mill solutions, and thus interfere with the precipitation and recovery of gold.2,3,4 Here is a summary of laboratory investigations on the use of cyanide solutions as extractants for copper from ...
The metal element with recovery value in the raw ore was mainly copper, with a content of 1.52wt%. The contents of the other metal elements were relatively low and did not recover. The copper phase of the Luanshya oxidized copper ore was analyzed by chemical analysis, and the results are listed in Table 2. The results show that the copper ore ...
Therefore, it is difficult to recover copper oxide resources efficiently by conventional copper sulfide ore separation method. Malachite is the most common copper oxide mineral …
In this study, the flotation of oxidized copper ore obtained from Ergani Copper Mining Company in Turkey was performed. This ore contains 2.03% copper, 0.15% cobalt and 3.73% sulfur. An effective … Expand
recovery of copper from different ores differently. As the roasting time and temperature increase, the leaching of copper ... C>sample D>Waziristan chalcopyrite. The experiments showed that the untreated raw oxidized copper ore show significant leaching which is 9.5% for saline and 35.5% for fertile soils respectively. This is an important ...
This oxidized copper ore contains substantial amount of chrysocolla, CuSiO3, 2H2O and minor amounts of azurite Cu3(CO3)2(OH)2, malachite Cu2Co3(OH)2, tenorite CuO, melaconite CuO and cuprite CugO. ... Recovery of copper sponge from oxidized copper ores US3262870A (en) * : : Powdered Metals Corp: Process for the extraction of ...
Hydrometallurgical methods alone or in combination with flotation have mainly been applied to large tonnage operations to recover copper from low grade native copper, oxidized, or mixed oxide and sulfide ores that are not readily concentrated by flotation alone or by other means, either due to treatment costs or low recovery.
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).
The processing of oxidized gold ore depends on the ore's nature and the form of gold. By choosing the most suitable beneficiation methods and optimizing crushing, grinding, and separation processes, gold recovery rates can be maximized and economic benefits improved.
The recovery of copper from low-grade oxidized and mixed oxide-sulfide copper ores by acid leaching is standard practice in the Southwest. Some ores, however, are unamenable to this method of treatment owing to excessive acid consumption by calcite or other acid-consuming gangue minerals.
The copper grade of one copper oxide ore from Dongchuan, Yunnan province is 1.14%, and oxidation rate and binding rate of which reach up to 77.81% and 20.79% respectively.
Practicality of preliminary sulphidization of oxidized copper minerals for the purpose of oxidized ore concentration is shown in the paper. For the first time the …
Of Oxidized Copper Ore Recep Ziyadanogullari, Firat Aydin* Dicle University, Faculty of Science and Art, Chemistry Department, 21280, Diyarbakır-TURKEY ... It was established that recovery of copper and cobalt from this ore with hydrometallurgical treatment is not economical, so using flotation to increase the
Oxidized black copper ores are known for their difficulty in dissolving their components of interest through conventional methods. This is due to its non-crystalline and amorphous structure. ... leach pads, or waste. For the recovery of its main elements of interest (Cu and Mn), it is necessary to use reducing agents that dissolve the present ...
Copper oxide ore is the important component of copper resources and cannot be effectively recovered by conventional beneficiation method. In this work, the low-content and complex …
of above parameters on copper ox ide recovery rate, the optim um condition for concentration, flow r ate, size of ore and leaching time were 40 gr /lit, 60 c c/h, 1-4.75 mm and 10 days, respect ively.
The copper mine is the sulfide-oxidized copper ore. The grade of copper is 0.5%, with the oxidation of 22%. According to the properties of the ore; a systematic study was did for the ore, include collectors, activators and grinding fineness. Under the optimized conditions, copper concentrates grade of Cu 16.56% with a recovery of 85.62% was obtained through the locked …
According to Castro et al the heterogeneous reactions are quite complex and various parallel processes may be taking place in the system. Three steps were identified for copper oxides: 1) adsorption of sulfide ions with the formation of copper sulfide, 2) sulfide oxidation, and 3) desorption of oxidized compounds by ion-exchange.
Mexican copper ore is a mixed ore containing mainly copper oxide and some copper sulfide that responds well to flotation. The joint techniques of flotation and leaching …
Fig. 2 Effect of time and acid flow rate on recovery of copper (ore crushed to less than 25.4 mm with heap height of 2 m) Fig. 3 Comparison between copper recovery in 25.4 mm and 50.8 mm crushed ores 2.3 GANN model Artificial neural networks (ANN) have been used in the mineral processing. ... Dissolution kinetics of an oxidized copper ore in ...
The recovery of copper from the sulphide/oxide ore using a combination of collectors (Potassium amyl xanthate (PAX) + potassium n-octyl hydroxamate) was found to be more effective compared to the recovery achieved with only xanthate after controlled potential sulphidisation. ... The application of Controlled Potential Sulfidization to Oxidized ...
The percolation leaching process results, including the calculation of sulfuric acid consumption per ton of ore, the consumption ratio of sulfuric acid and extracted copper, and the final copper recovery from the ore, are presented in Table 3, Table 4, Table 5, Table 6 and Table 7, which show the dynamics of these parameters over a period of 60 ...
Copper oxide ore has a complex composition, and a low recovery rate is often achieved via the traditional sorting method. A new combined process of flotation–high …
Recovery of oxidized copper Download PDF Info Publication number US1971416A. US1971416A US624895A US62489532A US1971416A US 1971416 A US1971416 A US 1971416A US 624895 A US624895 A US 624895A US 62489532 A US62489532 A US 62489532A US 1971416 A US1971416 A US 1971416A Authority US United States Prior art …
Kansanshi Mixed Copper Ore Treatment C. Ngulube,* C. Chongo and F. X. Paquot ... sulphides, malachite and oxidized native copper in the cleaning section. ... Plant recovery compared with laboratory recovery for acid-soluble copper minerals. 73 In this paper, we review the subsequent circuit changes and modifications that were a result of the ...
The global copper recovery ranged from 68 % to 98 %. For concentrate quality, represented by the concentrate grade, it varied from 10 % to 47 %. The correlation between global copper recovery and oxidation rate showed a progressive decrease in recovery with increasing oxidation rate (Fig. 6-b). At lower oxidation rates, recovery exceeded 90 % ...
The aim of the paper was the analysis of the influence of milling time on the laboratory flotation of the copper ore from stratiform Polish deposit. Three different milling time of copper ore in laboratory ball mill was applied. The flotation results were presented as the recovery-recovery and grade-recovery upgrading curves.
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain xanthate) is proposed for the first time.
involved with copper mobilization from the source region, oxidation of pyrite is important to generate a well-developed copper oxide ore deposit via copper addition. Oxidation of pyrite involves a series of stepwise processes resulting in the generation of "protominerals" such as schwertmannite and ferrihydrite, the solubility of which is a ...
While the CPS method recovered less than 30% of copper present in the oxide ore, a multistage sulphidisation approach was trialled, yielding a maximum recovery of 50% …
Despite low metal prices, mining and exploration for copper continue at a significant pace. Recovery of copper by leaching methods is economically more attractive than by conventional …
The oxidized copper deposit is located below the water table, a rare geological occurrence that exists more so in Arizona than anywhere else in the world. The deposit also is naturally highly fractured and most of the copper is located on the surface of the open fracture veins, providing all of the necessary conditions for in-situ recovery.
It's urgent to explore and utilize copper oxide ore resources to mitigate the shortage of copper resources. The more you know about the copper oxide ore, the bigger chance of choosing a suitable beneficiation method, which is of great significance for improving the copper recovery rate. Characteristics and floatability of main copper oxide ores