Sulfide Mineral Flotation Maurice C Fuerstenau Subhash Chander and Ronald Woods INTRODUCTION Froth flotation was developed at the Broken Hill mine Australia a century ago with the flo tation of the common sulfide mineral sphalerite With this development billions of tons of worthless rock containing a variety of valuable metals became ore
Inside the flotation cells the ore pulp processed with reagent is mixed and inflated with air toore processing plant / ball mill / flotation machine Ore processing plant / Ball mill / Flotation Machine / Magnetic Separator 522 likes · 8 talking about this we are large professional manufacturer of mining machine include gold ore processing
into several minerals like chalcopyrite carrolite chalcocite etc associated to pyrite The froth flotation and behaviors of chalcocite and carrolite were investigated through many flotation tests in order to recovery copper and cobalt This paper investigates the effect of potassium amyl xanthate PAX and sodium dibutyl dithiophosphate DANA performance on both copper and
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
The same samples when crushed to mm and used for froth flotation produced a recovery of Cd Ga and Zn of up to 61% 72% and 47%
froth flotation performance obtained with a bornite rich copper sulphide ore from Okiep Copper Mine with a feed grade of % copper Batch flotation tests were used to assess the performance in terms of mass water recovery sulphur grade recovery and copper grade recovery relationships and the Klimpel rate constant for copper
copper flotation parameters of chalcocite ore 1 Froth FlotationFundamental Principles Figure 1 The flotation system includes many interrelated components and changes in one area will produce compensating effects in other areas Klimpel 1995 Froth flotation is a good example of an engineering system in that the various important parameters are highly inter related as
1 Froth Flotation Fundamental Principles Figure 1 The flotation system includes many interrelated components and changes in one area will produce compensating effects in other areas Klimpel 1995 Froth flotation is a good example of an engineering system in that the various important parameters are highly inter related as shown in
Abstract The surface oxidation of chalcocite and covellite dipped in xanthate free and xanthate containing borate solutions of pH was studied by a small amplitude cyclic voltammetric SACV technique in the potential range between −1 V and 1 V vs SCE The formation of copper xanthate species from direct reactions between sulphide mineral surfaces and
1 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 Canatuan Cu/Zn Flotation Metallurgy low zinc zn ore was fed to the plant marketable copper concentrate at
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
Copper Ores Chalcopyrite Bornite Chalcocite Flotation Machine 21/05/2022 Copper flotation parameters of chalcocite orecopper flotation parameters of chalcocite oreCopper ore chalcocite cture of copper about 80 of the worlds primary copper comes from ores in which copper is present as a sulfide mineral for example chalcopyrite cufes 2 the most abundant
modifiers for chalcocite flotation 2022 09 19T16 09 47 00 00 modifiers for chalcocite flotation 04 Flotation Modifiers Acid Ph 04 Flotation Modifiers Free download as Powerpoint Presentation ppt PDF File pdf Text File general form of Barski relation Depressants acting through adsorption 2 4 6 8 10 12 pH 0 20 40 60 80 100 r e c o v e r y chalcocite KButX 0 0001M 4 6 8 0
Apr 01 2022· Chalcocite recovery was % in 8 min flotation which is much lower than that in the single chalcocite flotation Pyrite recovery was % With the collector addition chalcocite recovery was increased significantly to 78% at 120 g/t collector andRead More
01/11/2022 · However recent laboratory work demonstrates that Fluidised Bed Froth FBF flotation extends the upper size limit of flotation recovery by a
a laboratory study of the batch flotation of chalcocite from chalcocite quartz the flotation of oxidized ores of lead copper and zinc oxygen concentrations redox potentials xanthate residuals and other parameters in flotation plant pulps effect of ph on flotation recovery of chalcopyrite and pyrite the fast/slow floating model was found to be appropriate for describing the flotation
A cylindrically shaped 200 to 300 g bed of sulfide mineral particles was used as the working electrode in an electrochemical flotation cell In a pH sodium tetraborate buffer chalcocite floated with ethylxanthate at applied potentials ⩾ − V versus the standard hydrogen electrode pyrite floated at potentials ⩾ V
29/03/2022 · Salt flotation the process of flotation of inherently hydrophobic solids in concentrated electrolyte solutions is especially suitable for theoretical analysis since no other organic agents are used in it Starting from this example the case of flotation of sulfide ores chalcocite chalcopyrite pyrite and molybdenite is discussed The flotation of Cu Mo sulfide
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 V
Sources of Copper Ore Chalcocite Cu2S All copper sulfide ores are concentrated using the froth flotation process Ground ore is mixed with xanthate Know more Characteristics of Modern Copper Flotation Circuits CHARACTERISTICS OF MODERN COPPER FLOTATION Comparison of gas dispersion parameters for flotation cells in BULK FLOTATION OF
Copper Flotation Parameters Of Chalcocite Ore Investigation of effective parameters for 2 flotation of middling particles higher than 200 m improves with increased ph this is true in the case when chalcocite is the major copper mineral in the case of chalcopyrite ore a lower ph is more desirable because at a higher ph the flotation
1 Froth Flotation Fundamental Principles Froth flotation is a good example of an engineering system in that the various importantsimple models that can predict the performance of the circuit from easily measurable parameters such as solids recovery and tailings solid content Rao et al 1995 Grade/recovery performance of a
01/11/2022 · Recovery of copper oxide minerals can be achieved with flotation by sulphidising the ore In essence this creates a thin layer of copper sulphide chalcocite on the oxide grains which can then be activated and collected in the froth When employed this occurs after the sulphide flotation stage however this is not commonly used as other
22/03/2022 · In one phase of the testing chalcocite copper sulfide will be recovered via froth flotation employing standard reagents used in operating copper mills The purpose of this testing is to 1 determine the percentage of copper that can be recovered using this common technique 2 to determine the copper grade of the resulting concentrate and 3 to assess the
Using microflotation method this study explored the collectorless flotation of Chalcocite and its dependence on the redox potential of pulp Electrochemical studies were performed by cyclic voltammetry in specific potential ranges and at different pH values The results show that significant floatability of Chalcocite occurs in the specific reducing conditions
30/11/2022 · For example chalcocite flotation froth is lead grey chalcopyrite flotation froth is green gold galena flotation froth is lead grey sphalerite flotation froth is yellowish brown and hematite flotation froth It is red In the scavenging area the froth at the tail is often white as water film s color The darkening color of froth in the scavenging area indicates more metal
14/05/2022 · 6 Flotation The physical and chemical properties of rutile minerals are often not different from those of associated gangue minerals In order to obtain high grade and high recovery rutile concentrate it is no denying to attach great importance to the froth flotation technology The rutile titanium flotation process is a significant method
Oct 29 2022 Cyanide Leaching Sand Flotation Indicated Advantages of Cyanide Derimming Cadwell Process Many of the major copper ore bodies throughout the world contain chalcocite % 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%
Copper Flotation Parameters Of Chalcocite Ore Copper Flotation Parameters Of Chalcocite Ore Copper Sulphide Parameters Lvnherten Copper flotation parameters of chalcocite ore copper processing is a complied process that begins with mining of the ore less than 1 copper and ends with sheets of 99 pure copper called hodes which will ultimately be made into products
2 flotation of middling particles higher than 200 m improves with increased ph this is true in the case when chalcocite is the major copper mineral in the case of chalcopyrite ore a lower ph is more desirable because at a higher ph the flotation of chalcopyrite is decreased especially for the coarser particles Read More
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
Process of froth flotation Download PDF Info Publication number US1813343A US1813343A US405547A US40554729A US1813343A US 1813343 A US1813343 A US 1813343A US 405547 A US405547 A US 405547A US 40554729 A US40554729 A US 40554729A US 1813343 A US1813343 A US 1813343A Authority US United States Prior art keywords
2022 11 18 The wettability and floatability of oxidized chalcocite bornite and chalcopyrite with the conditions of sodium hydrosulfide NaHS dosages and pHs were studied by contact angle measurements and single and mixture mineral flotation tests To evaluate the results of the flotation the flotation kinetic model for copper sulfide minerals treated by NaHS was derived
Investigation of Flotation Parameters for Copper Recovery Chalcocite is an important copper mineral ore It has been mined for centuries and is one of the most profitable copper or The reasons for this is its high copper content 67 atomic ratio and nearly 80 by weight and the ease at which copper can be separated from sulfurCopper Flotation Parameters Of Chalcocite
Starting from this example the case of flotation of sulfide ores chalcocite chalcopyrite pyrite and molybdenite is discussed The flotation of Cu Mo sulfide ores requires the use of flotation agents which are different for the inherently hydrophobic molybdenite and hydrophilic copper sulfides The process is commonly carried out in alkaline pH adjusted with lime to depress
06 05 2022· Flotation tests were carried out on fresh chalcocite and oxidized chalcocite For the test of oxidized chalcocite the procedure for oxidation was the same as previously described except the particle size of chalcocite 65/ 325 mesh was larger 1000 mg of sample was used and the volume of water was less 100 ml
Collahuasi flotation circuit Suazo et al 2022 in which the flotation rate constant was The variables were gas dispersion properties flotation feed particle size distribution and operational and equipment parameters Another example of the use of physical kinetic models to predict Ore mineralogy Chalcocite digenite covellite
Jan 12 2022· how flotation is affected by chalcopyrite pyrrhotite interaction7 oct 2022 metallurgist mineral processing engineer logo pyrrhotite and chalcopyrite samples were separately crushed to minus 10 mesh and ph do i separate chalcopyrite galena sphalerite by flotation what ph do i separate chalcopyrite galena sphalerite by flotation
Copper Flotation Parameters Of Chalcocite Ore Copper flotation parameters of chalcocite ore copper processing is a complied process that begins with mining of the ore less than 1 copper and ends with sheets of 99 pure copper called hodes which will ultimately be made into products for everyday usee most common types of ore copper oxide and copper sulfide undergo two