Copper extraction Wikipedia
Supergene sulfide ores rich in native copper minerals are refractory to treatment with sulfuric acid leaching on all practicable time scales, and the dense metal particles do not react with froth flotation media. Typically, if native copper is a minor part of a supergene profile it will not be recovered and will report to the tailings.
Flotation of mixed copper oxide and sulphide minerals
Flotation Time (min) Fig. 2. Flotation response for copper sulphide composite using PAX as the copper collector. Total PAX and MIBC doses were 14 g/t and 48 g/t, respectively. the rougher scavenger tests the copper recovery achieved was 98.8% at a concentrate grade of 37.3% Cu.
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Sodium Hydrosulfide (NaSH)An Alternative to Sulfur
The process feeds the Cu Sulfide concentrate produced through flotation and applies a reverse flotation circuit to separate the Moly sulfide from Copper sulfides. In this case, the MoS floats and the CuS is depressed in a bank of flotation cells. The control devise is also an ORP meter typically controlled at between 450 mv and 500 mv.
Copper Sulphide Ore Flotation Process Xinhai
Therefore, flotation process is the main beneficiation method for copper sulfide ore. The common collecting agent used for copper sulfide ore flotation process is xanthate collectors, followed by aerofloat and its esters. Actually, The collecting effect is much better if
The effect of copper sulphate addition on the recovery of
flotation performance (Shortridge et al. 1999 Dalvie et al. 2000). The objective of this research was to determine the level of copper sulphate dosage that can activate the chromite and also to evaluate the effect of the depressant type and dosage on the recovery of chromite in the flotation of UG2 ore. The
(PDF) Flotation of an Oxidized Copper Sulfide Ore
Flotation of an Oxidized Copper Sulfide Ore . Ahmed A. Seifelnasr 1, Ghorashi Z. Zain 2, AbdelZaher M. Abouzeid *3. 1 Faculty of Petroleum and Mining Engineeri ng, Suez University, Suez, Egypt .
Chapter 12: Flotation of Copper Sulfide Ores Engineering360
From a processing point of view, copper ores could be divided into: Copper sulfide ores, where the pyrite content can vary from 10% to 90%. The predominant sulfide mineral in this ore is pyrite, but may also contain pyrrhotite and marcasite.
Sulphide Flotation an overview ScienceDirect Topics
In most flotation plants, sulfur and silver on gold grains (in all likelihood in the form of silver sulfide) promoted gold flotation. Copper must be assisting gold flotation as deciphered from the superior floatability of auricupride [Cu 3 Au] and tetraauricupride [AuCu] relative to native gold. At the Kemess flotation plant depending on the
Flotation of a copper sulphide ore from Okiep using thiol
Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NONREFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs. collector dosage obtained with C2X, diC2DTP and diC2DTC in the flotation of the Okiep copper ore
12.3 Primary Copper Smelting
iron sulfide. Because copper has a higher affinity for sulfur than oxygen, the copper in the slag (as copper oxide) is converted to copper sulfide. The copper sulfide is removed and the remaining slag is discarded. Converting produces blister copper by eliminating the remaining iron and sulfur present in
Benchmarking Performance of the Two Copper Sulfide
Benchmarking Performance of the TwoStage StackCell™ with Conventional Flotation for Copper Sulfide Appliions E.B Wasmund1 – Global Managing Director L. Christodoulou1 – Manager Global Testing Services M. Mankosa2 – Executive Vice President Global Technology E. Yan3 – Technical Director 1 Eriez Flotation Division Canada 7168 Venture Street,
(PDF) A Review of the Flotation of Copper Minerals
PDF Copper is most commonly present in the earth's crust as copperironsulphide and copper sulphide minerals, for example, chalcopyrite (CuFeS2), bornite (Cu5FeS4) and chalcocite (Cu2S).
Products include specialized collectors used in the separation of copper sulfide ores and for copper containing byproduct metals, such as gold and molybdenum. Flotation. Our proprietary FLOTATION MATRIX 100 TM is a methodology developed inhouse combining 100 years of experience in flotation, unique chemistries and our appliion expertise and
Copper Mining and Extraction: Sulfide Ores
The main ores of copper are sulfides and oxides. From their chemical formulas you can calculate the percentage of copper in each mineral. However this is not the same as the percentage of copper in the ore as that also contains unwanted silies and other minerals, called gangue, that will have to be separated. Stage 2: Froth flotation The
Froth flotation Wikipedia
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and wastewater treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.
Process mineralogy as a key factor affecting the flotation
Apr 12, 2019 · 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. The minerals' composition and association, grain distribution, and liberation within the ore samples were analyzed in the feed, concentrate, and the tailings of the flotation
FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide
History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for
MEI Blog: Challenges in copper flotation Barry A. Wills
Sep 17, 2011 · The situation can be more complex if the ore body has enargite, which is an arsenicbearing sulphide mineral similar to tennantite, from other sulphide copper minerals based on the flotation response of various copper minerals and enargite to changes in pulp potential.
BULK FLOTATION OF COMPLEX COPPER ORE academia.edu
The flotation of complex sulfide copper ores Complex ore are often characterized by particularly fine intergrowth of the mineral values. Due to this specific mineralogical characteristic, it is necessary to finely grind and concentrate ore prior to the solubilization of valuable metals (Makita, et.al. 2010).
1 Froth Flotation – Fundamental Principles
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 in a mineral/water slurry. The particles with attached air
Copper Sulfide Flotation in an Airsparged Hydrocyclone.
The concentration of a lowgrade porphyry ore by froth flotation in a 4.7Cmdiam airsparged hydrocyclone was investigated. The effects of important design and operating variables on the separation efficiency were examined. The variables included slurry feed
Flotation of NickelCopper Sulphide Ore: Optimisation of
the flotation recovery of Ni, Cu and Co from a nickelcopper 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
copper sulphide mineral icas2017conference
To elucidate the mechanisms of sulfide mineral depression, the U.S. Bureau of Mines examined the depressant effect of hydrosulfide on flotation of copper sulfides, using electrochemical techniques and flotation tests. Hydrosulfide addition is commonly used to achieve separation of . Get Price
Flotation of Copper Sulfide Ores PDF Free Download
Reagent scheme used for flotation of sulfide copper ores Unlike porphyry copper ore, where the reagent schemes are similar for most operations, the reagent schemes used for the treatment of sulfide copper ores are much more diverse and are designed to cope with specific problems associated with processing the ore.
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