A study on the effect of active pyrite on flotation of
some recent studies of copper ore flotation to separate chalcopyrite from pyrite with the evaluation of the effect of different important parameters on the process efficiency. Researchers have investigated (Martin et al., 1989, Leppinen, 1990, Boulton et al., 2001, Peng et al.,
Pper Flotation Parameters Chalcocite Ore
chalcocite flotation . copper flotation parameters of chalcocite ore. The copper flotation circuits upgrade copper content by a factor of chalcocite in the open pit ore to predominately chalcopyrite in the underground ore. . flotation cell, the only parameter that can be …
Alternatives For Sodium Cyanide For Flotation Control
Key words which were used in the broadly defined search were the following: flotation, ore treatment, chalcocite, chalcopyrite, sphalerite, galena, pyrite, and depress. A total of 38 articles relevant to the topic of pyrite depression were identified in the computer search.
NIOSHTIC 2 Publications Search 10004717 The Flotation
The flotation of chalcocite, bornite, chalcopyrite, and pyrite has been studied in a microflotation cell in which the potential of a bed of the mineral particles could be controlled electromechanically. The ethylxanthate-induced flotation of each mineral is markedly dependent on electrochemical potential, with the recovery changing from 0 to 100 pct in potential intervals of - 0.2 V.
Adsorption kinetics and thermodynamics of sodium butyl
Jan 03, 2020 CHEN Xu-meng, PENG Yong-jun, BRADSHAW D. The separation of chalcopyrite and chalcocite from pyrite in cleaner flotation after regrinding [J]. Minerals Engineering, 2014, 58(4): 64–72. Article Google Scholar  HASEGAWA M. The practical application of shs for chalcopyrite flotation …
Copper Flotation Parameters Of Chalcocite Ore
Copper flotation parameters of chalcocite ore 4.9 7632 Ratings The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. Get Price Great Mining Camps. Prices / Quote. Chalcopyrite Chalcocite Copper Extraction Separation.
copper froth flotation Jinpeng Mining
The reaction sequence with xanthate is Chalcocite copper blue speckle copper pyrite 2. Secondary copper ore and oxidation influence 3. Influence of ded particles , the more fine of the particles the much difficult to make the flotation 4. Multi-metal with copper , including Copper pyrite and Copper-Molybdenum Ore and so on .
12. Supergene Ore and Gangue Characteristics
188 12. Supergene Ore and Gangue Characteristics. Silicates Secondary silica, Kaolinite, Illite, Jarosite Carbonates Sphalerite Tetrahedrite Chalcopyrite Bi-Sb-Hg Sulphosalts Galena Arsenopyrite Pyrite
Complex sulphide ore processing with pyrite flotation by
Pyrite flotation in air and nitrogen Tests on the two ores showed that nitrogen can, under certain conditions, promote the flotation of pyrite' Figs. 1 and 2 illustrate this (with recovery vs flotation residence time) for Brunswick Mining ore; Fig. 3 shows the results on ore from Mattabi.
The separation of chalcopyrite and chalcocite from pyrite
Apr 01, 2014 It was found that chalcopyrite and chalcocite exhibited different flotation behavior and also affected pyrite flotation differently in cleaner flotation. The mechanism underpinning these phenomena was investigated by a range of techniques including the polarization of mineral electrodes, X-ray photoelectron spectroscopy (XPS) analyses and ethylene diamine tetraacetic acid (EDTA) extraction.
Increasing selectivity of chalcopyrite and chalcocite
G.H. Harris. R.R. Klimpel. F.F. Aplan. The flotation of four copper sulfide minerals (chalcopyrite, chalcocite, bornite, covellite) and pyrite with xanthates shows that a minimum in the collector...
Copper Chalcocite Derimming of Pyrite with Cyanide
Oct 29, 2018 Cyanide Leaching. Sand Flotation. Indicated Advantages of Cyanide Derimming (Cadwell Process) Many of the major copper ore bodies throughout the world contain chalcocite (79.9% Cu) as the principal copper mineral, yet the grades of copper concentrates produced from these ores rarely exceeds 25 to 28% Cu and in one known instance went as low as 13%. The low grade has …
Depression of pyrite in the flotation of high pyrite low
Jan 01, 2010 The floatabilities of five sulfide minerals (pyrite, chalcocite, molybdenite, millerite, and galena) were examined in the presence of A. ferrooxidans by Nagaoka and co-workers (1999). It was observed that pyrite was significantly depressed by the bacterium, while the floatability of other sulfide minerals was not affected.
Pyrite Depressant Froth Flotation Sulphide amp Oxide
Flotation of copper at different alkaline pH from 7upto 10 and using different Xanthates as collector vs. recovery of copper may give some clue. Minimum Pyrite obtained in copper concentrate is the starting point for further flotation test work. Depressing Pyrite is always a tricky matter.
Flotation of Pyrite 911metallurgist.com
May 03, 2017 Sodium silicate was somewhat effective in causing a differential or selective flotation of copper, as chalcopyrite from pyrite by keeping pyrite from floating. Sodium hydroxide and sodium sulfide gave, in most cases, a distinct separation of sphalerite from chalcopyrite; i.e., a high copper and low zinc by suppressing the flotation of sphalerite.
Optical Microscopy Hazen Research
Dark veinlets of chalcocite (Cu 2 S) transecting a pyrite particle. Froth flotation of this ore yielded unacceptably low copper concentrate grades due to insufficient pyrite-chalcocite liberation and attendant pyrite carryover into the concentrate. Based on the results of microscopic studies of this ore, the mill operators learned to properly blend ore types and optimize the grind to improve profitability. …
Chalcocite an overview ScienceDirect Topics
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 .
Pyrite Flotation Froth Flotation Sulphide amp Oxide
Normally pyrite should float well under typical sulphide flotation regime. However, surface alteration such as tarnishing due to geo-chemical actions can be one of the inhibiting factors. (unknown)