Copper Sulfide Flotation Circuit Beneficiation of Copper Sulfide by Flotation Copper, due to the present world demand and price, is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are
Jul 09, 2019· The floatability of common copper sulfide minerals is reduced in the following order: chalcopyrite > covellite > bornite > chalcopyrite. (4) The floatability of copper sulfide minerals is also affected by factors such as crystal grain size, grain size, etc. fine grain is not easy to float.
Nov 01, 2014· However, tennantite showed similar flotation behaviour to the copper sulphide minerals so that the high arsenic content of the final copper concentrate was mainly in the copper sulphosalts. In this study, regrinding the copper rougher concentrate was investigated to reject tennantite in cleaner
Sep 01, 2020· The inherent hydrophobicity of carbonaceous graphitic material enables its easy flotation simultaneously with valuable copper sulphides, posing significant flotation separation problems. As widely reported, environmentally benign, cheap and ubiquitous natural polymers such as native starch can be used to depress graphitic carbon.
Nov 01, 2015· Chitosan, a natural biodegradable polymer, was studied as a selective depressant in copper–molybdenum sulfide separation by flotation. Although chitosan depressed both molybdenite and chalcopyrite in single mineral flotation, selective flotation was achieved during the flotation of molybdenum-bearing copper sulfide concentrate at pH 6; the recovery
Extender flotation and flotation with "multi-bubbles" (bubbles with a wide size distribution) of copper sulphide fines (ore feed of about 1 % Cu) were compared with a "standardised" mill
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
Flotation of sulphide fines results, using CRF technique and HIC combined (CRF–HIC), were compared with a ‘‘standardized” mill laboratory procedure. Concentrate copper recoveries were of the order of 7– 18 per cent higher and their process kinetics
Jul 04, 2017· Flotation of sulphidic and oxidic copper minerals is reviewed, with particular reference to previous studies of refractory copper ore flotation. Principle of
1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.
Nov 01, 2014· However, tennantite showed similar flotation behaviour to the copper sulphide minerals so that the high arsenic content of the final copper concentrate was mainly in the copper sulphosalts. In this study, regrinding the copper rougher concentrate was investigated to reject tennantite in cleaner flotation.
Nov 01, 2015· 1. Introduction. The selective separation of copper–molybdenum sulfide minerals by flotation mostly relies on the use of various depressants. Sodium hydrosulfide, sodium sulfide, cyanide and Noke’s reagent (thiophosphorus or thioarsenic compounds) are routinely used as the selective depressants of chalcopyrite (Bulatovic, 2007, Pearse, 2005, Prasad, 1992, Yin et al., 2010), the main copper
Flotation of sulphide fines results, using CRF technique and HIC combined (CRF–HIC), were compared with a ‘‘standardized” mill laboratory procedure. Concentrate copper recoveries were of the order of 7– 18 per cent higher and their process kinetics
Extender flotation and flotation with "multi-bubbles" (bubbles with a wide size distribution) of copper sulphide fines (ore feed of about 1 % Cu) were compared with a "standardised" mill
Flotation of Nickel-Copper Sulphide Ore: 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
Best Particle Sie For Copper Sulphide Flotation. Pyrite Flotation Froth Flotation Sulphide amp Oxide. Can you list the factors affects the floatability of pyrite from refractory low grade ore.I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages PAX Activator Copper sulphateMIBC pH and others like pulp density and particle sie 70 and 150 microns .However.
Copper sulphides grade vs. recovery in size range of 0 20 um obtained after 60, 80 and 100 minutes of milling. As it is presented in Figs. 9-10, the lowest upgradi ng
flotation selectivity and recovery in the processing of complex sulphide ores. It is an inherent part of surface chemical reactions that determine whether the surface fJ.1m formed on a sulphide mineral will act as a hydrophobic or hydrophilic one. Because ofthe highly complex surface
Supergene copper ores rich in sulfides may be concentrated using froth flotation. Types of copper ore: More information. An additional point to note is that chalcopyrite, a brass-yellow mineral
Mar 17, 2014· Influence of n-dodecane aqueous emulsion on flotation of sulfide minerals present in the copper ore from the Legnica-Glogow Copper Basin (LGOM), carried out on the laboratory scale, was investigated. Five flotation experiments performed in the presence of different doses of n-dodecane were conducted and compared.
Extender flotation and flotation with "multi-bubbles" (bubbles with a wide size distribution) of copper sulphide fines (ore feed of about 1 % Cu) were compared with a "standardised" mill
Copper sulphides grade vs. recovery in size range of 0 20 um obtained after 60, 80 and 100 minutes of milling. As it is presented in Figs. 9-10, the lowest upgradi ng
Flotation of Nickel-Copper Sulphide Ore: 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
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
copper sulfide and oxidized copper minerals. The sulfide minerals are readily concentrated by flotation. Although concentration of oxidized minerals by flotation methods by the Kenneoott Copper Company in Alaska was successful, many other large and small scale attempts have failed. Chapman1
Jan 01, 2017· Base metals such as copper, lead, and zinc are mainly extracted from sulfide ores. Mostly these base metals tend to exist together in an ore. Flotation process is widely used to separate these minerals in sulfide ores [1]. A wide range of chemical reagents are used in the flotation process to separate the different minerals.
Leaching of Copper Sulphides Marc Nicolle,1 Marko Lampi,2 Kari Valkama, 2 and Janne Karonen 1 Outotec (RSA) (Pty) Ltd, Johannesburg, South Africa. The leach residue is subjected to flotation to recover pyrite and elemental sulphur which is subsequently fed to an oxidising autoclave. Within the autoclave, the elemental sulphur and
Metallurgical ContentA Copper Flotation FlowsheetCOPPER MININGCRUSHING COPPER ORECOPPER ORE STORAGEGRINDING COPPER ORECOPPER FLOTATION CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Flotation Process SummaryFlotation of Copper Ores Although basic porphyry copper flotation and metallurgy has remained virtually the
phosphate components. For sulphides an additional serious problem is the increased oxidation of fines. Oxidized portions of the sulphide ores are oft~n concentrated in the sub-sieve fractions. Although some amount of oxidation is considered beneficial for the flotation of sulphides
More recently, it was reported that when using a dithiophosphate collector, 90% of the copper sulphide minerals and 93% of carrollite could be recovered from mixed oxide sulphide ore at ambient pH in a laboratory batch flotation experiment. Final concentrate grades after the sulphide flotation stage were 12.2% Cu and 0.38% Co .
After two minutes flotation a copper grade of 5.2 per cent with 52 per cent recovery could be attained, against a grade of 2.5 per cent and a recovery of 44 per cent in the case of KAX. The efficiency of this new collector has been ascertained on two samples of complex sulphide ores of
Dec 30, 2017· Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.
distributed mineral in the mixed sulfide-oxide ores. Furthermore, in the deposit there are bornite, coveline, malachite, azurite, natural copper and natural gold. Technical characteristics Flotation tests are carried out in a Denver flotation cell, 1500 revolutions/min with a
Dec 30, 2017· Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.
Mar 17, 2014· Influence of n-dodecane aqueous emulsion on flotation of sulfide minerals present in the copper ore from the Legnica-Glogow Copper Basin (LGOM), carried out on the laboratory scale, was investigated. Five flotation experiments performed in the presence of different doses of n-dodecane were conducted and compared.
High-purity dialkyl thionocarbamates are economically produced by reacting suitable xanthates with alkyl amines in the presence of a dissolved catalyst. Nickel and palladium salts are preferred catalysts. Thionocarbamates produced by the method of the invention are a desirable flotation reagent for certain refractory copper sulfide ores.
After two minutes flotation a copper grade of 5.2 per cent with 52 per cent recovery could be attained, against a grade of 2.5 per cent and a recovery of 44 per cent in the case of KAX. The efficiency of this new collector has been ascertained on two samples of complex sulphide ores of
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 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs. collector dosage obtained with C2-X, di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper ore
copper sulfide and oxidized copper minerals. The sulfide minerals are readily concentrated by flotation. Although concentration of oxidized minerals by flotation methods by the Kenneoott Copper Company in Alaska was successful, many other large and small scale attempts have failed. Chapman1
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
The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and ground-up limestone) to give a basic pH, pine oil (yes, it comes from trees -- a by-product of paper mills) to make bubbles, an alcohol to strengthen the bubbles, and a
Jan 01, 2017· Base metals such as copper, lead, and zinc are mainly extracted from sulfide ores. Mostly these base metals tend to exist together in an ore. Flotation process is widely used to separate these minerals in sulfide ores [1]. A wide range of chemical reagents are used in the flotation process to separate the different minerals.
distributed mineral in the mixed sulfide-oxide ores. Furthermore, in the deposit there are bornite, coveline, malachite, azurite, natural copper and natural gold. Technical characteristics Flotation tests are carried out in a Denver flotation cell, 1500 revolutions/min with a
Dec 09, 2019· A study involving the Camborne School of Mines, UK, the Geological Srvey of Finland, and the Université de Lorraine, France, has investigated the flotation behaviour of such a complex carbonate-rich mixed oxide-sulphide ore where copper is hosted in sulphides (bornite, chalcopyrite, chalcocite) and oxides (malachite, chrysocolla) while cobalt
sulphidisation for flotation of oxidized sulphides has also been demonstrated (Newell et al., 2006). When introduced in the slurry, the sulphidiser dissociates into -the species H 2 S, HS-or S 2, depending on the pH. These ions react with the copper oxide minerals to form a sulphide layer on the surface of
Particular attention is paid to the use of depressants, namely sulphur dioxide and sulphides. Some of the recent research results and industrial experience on the production of selective copper and zinc concentrates are briefly discussed. A case study of flotation of a complex Cu-Zn sulphide
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