• Copper Sulfide Flotation 911 Metallurgist

    2016-4-13 · Copper Sulfide Flotation Circuit. The pulp from the Conditioner is treated in a 10-cell “Sub-A” Flotation Machine and a 4-cell “Sub-A” Flotation machine. Sometimes conditioners are not provided; however, their use insures that reagents are thoroughly

    FLOTATION OF COPPER SULFIDE ORES STEPHAN

    The ore is a sulfide copper ore containing heads of approximately: copper 0.45, iron 3.5, molybdenum 0.006, and zinc 0.06 per ore sample. Prior flotation of this ore has employed, in the flotation cell, the addition of pine oil as required to optimize froth, ordinarily resulting in a total pine oil concentration of about 0.24 lb./ton.

    Flotation of Copper and Molybdenum Sulfides

    2019-4-21 · Large tonnages of copper and molybdenum sulfide ore are treated by flotation. Substantial savings could be realized, particularly in high-capacity concentrators, by use of a simplified flotation technique involving lower reagent consumption.

    Flotation separation of copper–molybdenum sulfides

    2015-11-1 · However, to our knowledge there is not any report about the application of chitosan in the flotation separation of copper–molybdenum sulfides. Thus, in the present study, chitosan was chosen as a depressant in copper–molybdenum sulfide separation using single minerals and Jiama copper–molybdenum sulfide ore samples to determine its possibility to be an effective selective

    Flotation of a copper sulphide ore from Okiep using thiol

    2009-8-26 · Thiol collectors are used in the froth flotationof copper sulphide ores. The xanthates, dithio-phosphates and dithiocarbamates are classesof thiol collectors that each form differentsurface products on different copper sulphideminerals.

    Evaluation of flotation collectors for copper sulfides

    1987-8-1 · Its flotation is probably due to chemisorption onto copper sites on this relatively soluble mineral with hem- imicelle formation aiding flotation. Electrostatics probably serve mainly to repel this anionic collector from the negative mineral surface.

    FLOTATION OF COPPER AND NICKEL SULFIDES FROM

    A method for the flotation of nickel and copper sulphide minerals from talcose bearing ores using an alkaline circuit in which at least one of the alkaline reagents is soda ash or ammonium hydroxide and following conditioning of the pulp with a collecting agent of the xanthate family to activate the nickel and copper sulphide materials, the pulp is conditioned with a flocculating agent to

    GALVANIC INTERACTIONS OF SULFIDE MINERALS IN

    2010-9-13 · The Polish flotation copper concentrates from all three concentrators: Lubin, Rudna and Polkowice exhibit the dominating content of chalcocite and bornite, the easiest-to-leach copper sulfides. This is a unique and exceptionally beneficial attribute of the Polish copper concentrates with regard to their potential application for hydrometallurgical treatment. The content of chalcopyrite most

    Copper Nickel Flotation 911 Metallurgist

    2017-6-15 · The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken

    Chapter 6 Copper Production Technology

    1996-11-20 · Froth flo- tation is the prevalent concentration method in the copper industry; it separates the pulverized ore (containing around 0.6 to 2.0 percent cop- per) into concentrates (with 20 to 30 percent cop- per) plus tailings (wastes of 0.05 to 0.1 percent copper) .40.

    FLOTATION OF COPPER SULFIDE ORES STEPHAN

    The ore is a sulfide copper ore containing heads of approximately: copper 0.45, iron 3.5, molybdenum 0.006, and zinc 0.06 per ore sample. Prior flotation of this ore has employed, in the flotation cell, the addition of pine oil as required to optimize froth, ordinarily resulting in a total pine oil concentration of about 0.24 lb./ton.

    Flotation of Copper and Molybdenum Sulfides

    2019-4-21 · Separation of molybdenite from copper sulfides may become simpler and less costly. Ore Samples. Three ore samples were subjected to flotation tests in the course of this investigation. Two samples, designated as Arizona and Wyoming,

    Flotation of Nickel-Copper Sulphide Ore: Optimisation of

    2020-1-8 · 2. 2. Flotation Procedure All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel flotation cell. The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water to about

    Flotation of a copper sulphide ore from Okiep using thiol

    2009-8-26 · 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

    FLOTATION OF COPPER AND NICKEL SULFIDES FROM

    FLOTATION OF COPPER AND NICKEL SULFIDES FROM TALCOSE BEARING ORES . United States Patent 3696922 . Abstract: A method for the flotation of nickel and copper sulphide minerals from talcose bearing ores using an alkaline circuit in which at least one of the alkaline reagents is soda ash or ammonium hydroxide and following conditioning of the pulp

    CHAPTER 7 FLOTATION OF SULPHIDE MINERALS

    2015-10-19 · 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.

    Role of Sodium Sulfide Copper Lead & Zinc Ore

    2018-7-17 · Sodium sulfide is one of the most widely used alkali metal sulfides in the flotation of copper, lead, and zinc minerals in their oxidized form. The sulfidization process, developed in the U.S.A. in 1915-20 for oxide copper minerals flotation, is

    GALVANIC INTERACTIONS OF SULFIDE MINERALS IN

    2010-9-13 · The copper flotation concentrates produced at Lubin Concentrator are of polymetallic and polymineral composition. They contain chalcocite (Cu2S) and bornite (Cu5FeS4) as dominating copper sulfides, whereas chalcopyrite (CuFeS2) and covellite (CuS) are minor minerals (KGHM, 2007; Łuszczkiewicz, 2009). Moreover, in recent

    Copper Nickel Flotation 911 Metallurgist

    2017-6-15 · The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken

    Handbook of Flotation Reagents Webs

    12.3 Flotation Properties of Individual Copper Minerals and Associated Sulfides .. 240 12.4 Flotation Practice in Beneficiation of Copper and Copper-Molybdenum Ores .. 244 12.4.1 Effect of grinding on metallurgy .. 245 12.4.2 Reagent schemes in flotation of porphyry copper and

    Experimental Study on Flotation of Copper Sulfides in

    The copper ore, which has fine-grained nature and differences in the degree of mineral dissemination, is a kind of low grade sulfide minerals. Tests indicate that not only the grinding fineness but also the combination mode of depressants is one of the most important factors to improve the concentrate grade index. Additionally, according to tests conducted with dosage of lime, the rougher

    Chapter 12: Flotation of Copper Sulfide Ores

    2021-6-1 · Addressed to the researchers and plant metallurgists who employ flotation reagents, this text examines the theoretical aspects of flotation reagents as well as the practical aspects of using chemical reagents in operating plants. More than 170 copper-containing minerals are known and only 10-15 of

    Flotation of a copper sulphide ore from Okiep using thiol

    2009-8-26 · 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

    METHOD OF COPPER SULFIDE ORE FLOTATION

    I claim as my invention 1. A method of mineral flotation comprising the steps of grinding a copper-bearing sulphide ore material to release the metal values from a gangue containing iron pyrites, adding water and calcium oxide to adjust the pH to about 7 to 11.5, passing air bubbles through the solution and adding an amount of a flotation promoter comprising R--(OCH 2 CH 2)N-- OSO 3 Na and a

    12.3: FLOTATION PROPERTIES OF INDIVIDUAL

    2021-6-5 · Flotation properties of individual copper minerals and associated sulfides from natural ores differ significantly. The mineralogy of the ore mineral impurities in a crystal structure, variation in crystal structure, other interfering gangue minerals and the liberation characteristics of individual minerals in a particular ore are some of the

    Flotation of upper zone copper sulfide ores Exxon

    It is well known that the rate of flotation and overall recovery of copper sulfides, such as those in porphyry ores, are substantially lower with ores which come from upper zones of ore bodies. This decrease in copper recovery and flotation rate is believed due to the weathering effects near the ground surface which results in partial oxidation

    CHAPTER 7 FLOTATION OF SULPHIDE MINERALS

    2015-10-19 · 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.

    Role of Sodium Sulfide Copper Lead & Zinc Ore

    2018-7-17 · Sodium sulfide is one of the most widely used alkali metal sulfides in the flotation of copper, lead, and zinc minerals in their oxidized form. The sulfidization process, developed in the U.S.A. in 1915-20 for oxide copper minerals flotation, is

    GALVANIC INTERACTIONS OF SULFIDE MINERALS IN

    2010-9-13 · The copper flotation concentrates produced at Lubin Concentrator are of polymetallic and polymineral composition. They contain chalcocite (Cu2S) and bornite (Cu5FeS4) as dominating copper sulfides, whereas chalcopyrite (CuFeS2) and covellite (CuS) are minor minerals (KGHM, 2007; Łuszczkiewicz, 2009). Moreover, in recent

    Evaluation of Factors Affecting Carrying Capacity of

    2021-6-13 · Evaluation of Factors Affecting Carrying Capacity of Laboratory Flotation Column Treating Copper Sulfides M. Irannajad*, R. Soltanpour, F. Nakhaei Department of Mining & Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran ABSTRACT: One of the necessary parameters in designing and scaling up flotation columns

    Potential-Controlled Flotation and Depression of

    2013-7-18 · The complete behavior of flotation and depression of copper sulfides and oxides as a function of potential modified by sodium hydrosulfide in certain non-xanthate collector systems was studied using a sulfide ion electrode (SIE). Detailed flotation tests on three diverse copper ores, using different types of collectors, and two Cu–Mo

    Flotation of a Copper-Lead Sulfide-Oxide Ore:Using

    Copper and lead phases analysis show that the oxidation rates of copper and lead are up to 70% and 72%, respectively. In order to get a good flotation performance for the difficult-to-treat ore, an efficient flotation technology of bulk flotation of Cu-Pb sulfides,separation of Cu-Pb sulfides, copper and lead oxides flotation has been developed.

    Copper Sulphide Ore Reagents For Copper Flotation

    May 30, 2020nbsp018332copper sulfide can be divided into single copper ore, copper sulfur ore, copper-molybdenum deposit, copper nickel, carrollite and so on.basically, only flotation can be considered in its separation.almost all copper sulphide ores contain iron-bearing sulfides, so in a sense, the flotation of copper sulfide is essentially

    Method of flotation of sulfide copper-zinc ores

    (57) Abstract: Usage: mineral processing, in particular flotation of copper-zinc sulphide ores and products. Method of flotation of sulfide copper-zinc ores includes the conditioning of the pulp in a calcareous environment with reagents-regulators sulfur, sodium, and zinc sulfate, the introduction of collector and Frother and subsequent separation with separation of copper minerals in the

    FINE SULFIDES IN THEIR FLOTATION P. Somasundaran,

    2004-2-4 · loss in the flotation of the 85% minus 44 ~ feed is in the minus 5 p.'t1 size fraction (1). The problem of loss of finely disseminated values during sulfides processing has been illustrated best by Arbiter recently in his discussion of the processing of New Brunswick zinc-lead-copper ores

    THERMOMECHANICAL ASPECT OF SELECTIVE

    2016-1-10 · Selective flotation is one of the most complex activities in mineral dressing as sulfides and copper, zinc and iron have very similar flotation properties and intergrow very finely; in addition, one and the same area of an ore body can be com-posed of ore of different industrial grades. Considering mate-

    CHLORINATION OF COPPER AND NICKEL SULFIDE

    The nonferrous metal chlorides may then be water leached, separated, purified, and electrolyzed to recover copper and nickel metals and to regenerate chlorine for recycling. AB A chlorination process for treating metal sulfide flotation concentrates is described.

    Preferential Flotation of a Refractory Cu-Pb-Zn

    the copper coarse concentrate is incresed at a high level, and the content of lead and zinc is slightly increased when the fineness is high. Therefore, it is determined that the grinding fineness in the roughing flotation of the copper is 70% -0.074 (mm). Flotation Conditions Tests of Copper Sulfides Tests of Different Copper Collectors.

    ANALYZING STATISTICALLY THE FLOTATION OF COPPER

    2013-8-16 · Flotation process parameters were studied to concentrate the copper content i.e. chalcopyrite of North Waziristan copper ore. Mathematical models were developed by applying statistical and computational “Excel” Techniques. Forty mathematical models for the recovery of copper

    RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    2014-12-24 · RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

 

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