Selective flotation of enargite from copper sulphides in …
— The objective of this paper is to assess the effect of applied potential on the floatability of enargite in a complex ore system, by characterising the flotation behaviour of both copper and copper-arsenic bearing minerals in unsize, size-by-size, and size-by-liberation bases, and comparing the results to the literature data for pure mineral ...
Investigation of Copper Recovery from a New Copper …
The copper minerals found in many recent production operations frequently comprise low grade deposits requiring either multi stage flotation processing (including flotation at very …
A Review of the Flotation of Copper Minerals
Flotation of sulphidic and oxidic copper minerals is reviewed, with particular reference to previous studies of refractory copper ore flotation. Keywords: Flotation; recovery; refractory. 1. Introduction . Froth flotation is defined as a physico-chemical process which exploits the differences in the electrochemical
Chalcocite
2.1.1 The ore-forming mechanism of natural CuFeS 2. Natural chalcopyrite is a copper iron sulfide mineral with a chemical formula of CuFeS 2. Natural chalcopyrite is a copper-iron sulfide mineral with the chemical formula CuFeS 2, cell parameters a = 0.52914 nm, c = 1.0422 nm, belonging to the tetragonal crystal system, I-42d space group [63].
Chalcocite
The separation of chalcocite (Cu 2 S) and heazlewoodite (Ni 3 S 2) from high nickel matte can be achieved by maintaining the proper pH and pulp potential while using xanthates as collectors.The flotation recovery of Cu 2 S and Ni 3 S 2 has been studied by adjusting the oxidation–reduction potential of the flotation pulp with (NH 4) 2 S 2 O 8 and KMnO 4.The …
Investigation of Copper Recovery from a New Copper …
the zeta potential and Hallimond flotation tests to assess the role of operating parameters in flotation. The distinctive role of process mineralogy and flotation chemical influence for copper mineral flotation of Nussir ore is presented in this article. ... The Nussir ore primarily contains three copper minerals: chalcopyrite, chalcocite, and ...
Effect of pulp potential on the flotation of a sulfide copper ore
— Surface oxidation of secondary minerals, such as chalcocite, bornite and digenite, present in the Salobo copper ore makes their flotation difficult and requires excessive reagent consumptions.
CHAPTER 7 FLOTATION OF SULPHIDE MINERALS
Flotation of Chalcocite (Cu 2 S) Chalcocite (Cu 2 S) and chalcopyrite (CuFeS 2) are the two most commonly floated copper sulphide minerals. Bornite (Cu 5 FeS 4) and covellite (CuS) and energite (Cu 3 AsS 4) are normally present in lesser quantities. The complete flotation of chalcocite is achieved between ph = 1 to ph = 10 with ethyl xanthate.
Statistical investigation of flotation parameters for copper …
— A maximum recovery of copper was 88,58% while the grade was 2,88 with 32,29 copper oxide on the total massive copper under the flotation conditions: 1,15 pulp density, 10 g/t dosage collector, 10 g/t dosage frother, and 50 g/t dosage dispersant and the maximum grade 12,24 while the recovery was 47,02% under the flotation conditions: …
Application of Thionocarbamates in Copper Slag Flotation
— Thionocarbamates are the group of collectors that are mostly used for flotation of sulphide copper minerals, alone or in combination with xanthates depending on a mineralogical composition of the ore. In this paper, the results of the study of application of thionocarbamates in copper slag flotation are presented. Chemical analysis of smelter …
Electrochemical flotation separation of chalcocite from …
DOI: 10.1016/0301-7516(83)90035-2 Corpus ID: 98580861; Electrochemical flotation separation of chalcocite from molybdenite @article{Chander1983ElectrochemicalFS, title={Electrochemical flotation separation of chalcocite from molybdenite}, author={Subhash Chander and Douglas Winston Fuerstenau}, journal={International Journal of Mineral …
Optimal conditions for ammonia leaching of …
Microscopy and mineralogical studies have shown that copper concentrates obtained from flotation baths have high intrusion of pyrites. This is made possible because the pyrite particles are usually rimmed with copper or chalcocite. Any attempt to separate the copper or chalcocite from the pyrites through oxidative leaching with ammonia will
Copper Flotation
— 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 or …
(PDF) Process mineralogy as a key factor affecting the flotation …
— The aim of this study is to apply process mineralogy as a practical tool for further understanding and predicting the flotation kinetics of the copper sulfide minerals.
Chalcopyrite and pyrite floatabilities in the …
— One of the principal problems in flotation of copper complex ores is the presence of pyrite and copper-activated pyrite in moderately alkaline pHs. Misreported pyrite into copper concentrates dramatically …
Estimated Water Requirements for the Conventional …
Figure 1 is a generalized diagram of a conventional copper flotation plant from the point where ore first enters the circuit to the production of concentrate and tailings. To prepare ore for the flotation process, run-of-mine ore, which may contain from about 2 to 5 percent water, by weight, when mined, is
Dynamic simulator of a rougher flotation circuit for a copper sulphide ore
— Dynamic simulator of a rougher flotation circuit for a copper sulphide ore. Author links open overlay panel A. Casali a, G ... In one case, at a lower copper grade (L ca ⩽0.17L fa), there is no chalcocite. All the copper is then chalcopyrite and the pyrite is ... A preliminary adjustment of the parameters more related to the dynamic response ...
Investigation of Flotation Parameters for Copper Recovery …
— The flotation process can be used to separate the arsenic-bearing copper ore, producing a "clean" copper concentrate with low arsenic content which is then processed in copper smelters and a ...
Investigation on the Flotation Recovery of Mixed Copper Ore …
— Statistical methods such as PCA and PLS can be employed to identify the key mineralogical features that influence copper recovery and aid in developing …
Flotation of copper oxide minerals: A review
— It is often associated with copper-bearing minerals, such as chalcocite and azurite. The chemical formula of malachite is Cu 2 (OH) 2 CO 3, ... Process mineralogy and flotation kinetic of a copper oxide ore during sulfuration flotation. Adv Mater Res, 634 (2013), pp. 3460-3465. View in Scopus Google Scholar
Flotation of an Oxidized Copper Sulfide Ore
— The activation effects of single activator and some combined activators on Yunnan copper oxide ore were studied with Drawing a conclusion that the best activation - xanthate flotation result could ...
The separation of chalcopyrite and chalcocite from pyrite in …
— There is a general industrial observation that chalcocite-dominant copper ores are more difficult to treat in particular in cleaner flotation after regrinding (Wightman et …
(PDF) Mineralogical Prediction of Flotation Performance for …
— The flotation recovery of sulfide ore in a sedimenthosted copper-cobalt deposit in the Democratic Republic of Congo has been predicted by the correlation of mineralogical data delivered by the ...
Effect of O-isobutyl-N-ethyl thionocarbamates on flotation behavior of
— Porphyry copper ore samples come from northwestern China. The multi-element analysis of porphyry copper ore samples is shown in Table 1. Results showed that the metal elements contained in the ore were primarily Cu and Fe. The presence of copper in porphyry copper ore was dominated by chalcocite, chalcopyrite, and bornite (Table 2, …
1 Froth Flotation – Fundamental Principles
Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces …
(PDF) Flotation of a Copper Sulfide Ore
— Surface oxidation of secondary minerals, such as chalcocite, bornite and digenite, present in the Salobo copper ore makes their flotation difficult and requires excessive reagent consumptions.
Flotation of copper oxide minerals: A review
— In this paper, we have reviewed the surface properties of common copper oxide minerals and summarized application of direct flotation, sulfidization flotation, and …
Copper recovery from copper slags through flotation …
— The surface energy of copper slag particles can be changed if adding Na 2 CO 3 before wet grinding, the possibility of cracks between chalcocite and gangue particles can be increased, and Na 2 CO 3 can also be used to clean the surface of mineral particles, slightly oxidizing the chalcocite surface and improving the flotation effect of copper ...
Efficient Utilization of Copper Sulfide Ore in Chile by Flotation
— The valuable minerals of a copper sulfide ore in Chile, mainly consist of chalcopyrite and chalcocite as well as contain small amounts of cuprite.
Combined Effect of Operating Parameters on …
a Sungun porphyry copper sulfide ore which was obtained from East Azerbaijan Province in the northwest part of Iran. The factors mentioned in the design were selected based on the parameters that can be changed at the Sungun processing plant. 2 Materials and Methods 2.1 Ore Sample A bulk sample of copper ore was obtained from the Sungun
Catalytic Efficiency of Acidithiobacillus ferrooxidans for …
— Actually, most copper is found as chalcopyrite ore, which is the most abundant form of copper sulfide, but it is recalcitrant to dissolution. The biggest challenge for biohydrometalurgy is the ...
Flotation of Nickel-Copper Sulphide Ore: Optimisation …
the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals ...
A Review of the Flotation of Copper Minerals
— 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 mines) is of great commercial importance....
copper flotation parameters of chalcocite ore
flotation oxidised copper ore copper flotation parameters of chalcocite ore; ... China. copper ore flotation machine Mining Plant is manufactured from Shanghai Xuanshi,It is the ...
The Extraction of Copper
— Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated before refining (e.g., via froth flotation). Figure 1: Chalcopyrite extracted from Zacatecas, Mexico. from Rob Lavinsky (iRocks) under a CC-BY-SA-3.0 license.