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Why only sulphide ore is concentrated by froth flotation

  • 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.

  • Which of the following ores is concentrated by the froth

    The third one down on the left. You can write that down and take your chances, or you can do your own homework. In any case, youre missing some fundamental things youd have to include in your question if you wanted a useful answer. Not that Id

  • flotation lead ore concentrate Prominer (Shanghai

    A process for the beneficiation of lead or copper-lead sulphide ore or concentrate containing calcium and magnesium carbonates wherein the ore or concentrate is conditioned with a limited amount of sulphuric acid to form an acidic slurry and subjecting the acidic slurry to froth flotation whereby an upgraded concentrate and a tailing comprising

  • Froth Flotation Method Is Used For Concentration Of

    Concentration of ores hydraulic washing, froth flotation froth flotation process.Another method of concentration of ores is the froth flotation method.This is the process for concentration of primarily sulphide ores.It has the advantage over gravity separation because it can collect even the extremely fine particles of minerals.

  • Froth Flotation Method - JXSC Machine

    Dec 20, 2018· The vast majority of polymetallic sulphide ores containing gold and silver are treated by this method. When flotation of such ores, gold and silver enter into the copper concentrate or lead concentrate closely associated with them. The products are called copper, gold and silver concentrate or lead, gold and silver concentrate, etc.

  • Why is the froth flotation method only used for sulphide

    Only sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth. This method is also used in waste recyling and paper industries.. this method also seperates hydrophobic substances

  • Froth Flotation Process - Mineral Processing & Metallurgy

    Jan 20, 2021· The use of these reagents has been extended in recent years to three- stage selective flotation. For example, ores containing the sulphide minerals of lead, zinc, and iron, can be treated to yield three successive concentrates, wherein each class of minerals is recovered separately more or less uncontaminated by the others.

  • Differences and Applications of Magnetic Separation and

    Dec 22, 2020· Froth flotation machine is generally used for the concentration of sulphide ores. The principle behind froth flotation process is that sulphide ores are preferentially wetted by pine oil whereas gangue articles are wetted by water. In this process, the suspension of a

  • Enhanced methods for nickel recovery from low-grade ores

    The second stage of froth flotation produces a nickel concentrate of 10-20% Ni, along with other by-products and gangue. Smelting is the next stage, designed to recover as much metal as possible. Flash smelting is a common method: dry concentrates are fed into

  • Why is it only sulphide ores are concentrated by froth

    Apr 19, 2018· Froth floatation works by formation of froth which contains the ore, while the gangue remains in water. For this the oil (pine oil) used to make the froth should only have an affinity to the ore and not to the gangue. Sulphide ores have that property. Which means the pine oil wets the Sulphide ore but not the gangue.

  • Flotation experiment research on a polymetallic sulfide ore of

    The polymetallic sulfide ore of copper, lead, and zinc is widely found all over the world and is often associated with rare metals such as gold and silver. The economic value of the comprehensive recycling of this of ore is large[1]. The polymetallic sulfide ores of copper, lead, and zinc are usually processed via flotation, and the concentrates of

  • Froth floatation process used for the concentration of

    By this flotation method, it is possible to concentrate over 90% of a sulphite ore to 1/10 of its original bulk. During the flotation process of some ores, these substances are added which activate or depress the flotation property of the minerals and thus help in the separation of minerals present in the ore.

  • Why Only Sulphide Ore Is Concentrated By Froth Flotation

    The low concentrations of the zinc sulphide mineral in most zinc ores mean that the ore must first be concentrated before extracting the metal. The zinc blende (sphalerite: zinc sulphide)is first crushed to powder and then treated by froth flotation (that process is described in the copper unit.

  • why is it only sulphide ores are concentrated by froth

    Mar 07, 2012· Only sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth. Answered by

  • Flotation Behavior of Complex Sulfide Ores in the Presence

    as a selective pyrite depressant in the bulk flotation of complex sulfide ore sample containing galena (PbS), chal-copyrite(CuFeS. 2),sphalerite(ZnS),pyrite(FeS. 2 the presence of the collector and the frother as the only After flotation, both the froth products (concentrates) and tailings were collected, dried, weighed, and assayed

  • 1 Froth Flotation Fundamental Principles

    After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration (b) % Metal Recovery (c) % Metal Loss (d) % Weight Recovery, or % Yield (e) Enrichment Ratio Table 1: Grade/recovery performance of a hypothetical copper ore flotation

  • Which one of the following ores is best concentrated by

    Froth ­flotation method is used for the concentration of sulphide ores. The method is based on the preferential wetting properties with the frothing agent and water. In the given options, Galena (PbS) is the only sulphide ore.

  • floatation of copper sulphide ore

    Table 5 presents the first order flotation rate constant, the maximum theoretical flotation recovery, and the coefficient of variation of the rate constant, obtained from the data of rougher flotation of a copper sulphide ore with 10% (w/w) biosolids, 1.5% (w/w) salt of humic acids, and a mixture of conventional collectors and frothers used in the

  • (PDF) Flotation of an Oxidized Copper Sulfide Ore

    A sulfidization-flotation method was used, on a laboratory scale, to investigate the amenability of this ore to be concentrated. Promising results were obtained at pH 12, 16 g/Mg potassium amyl

  • why the froth floatation process is best suited for the

    Apr 03, 2018· Froth Flotation: This method employs a mixture of water and pine oil which is made to froth in a tank to separate sulphide ores. The differences in the wetting properties of the ore and gangue particles separate them. Only sulphide ores are concentrated by froath floatation process because

  • Copper Mining and Extraction Sulfide Ores

    This is done by heating the concentrated ore from froth flotation. It is heated to between 500 °C and 700 °C in air. The product from the roaster is called calcine. It is a solid mixture of oxides, sulfides and sulfates. One reaction that takes place is: 2CuFeS 2 (s) + 3O 2 (g) 2FeO(s) + 2CuS(s) + 2SO 2 (g)

  • Why ag2s can't be separated by froth flotation process

    Oct 22, 2015· Why ag2s can't be separated by froth flotation process Share with your friends. Share 1. Froth floatation method is the method of concentrating sulphide ore. In silver extraction Ag 2 S ore is concentrated by froth floatation process only. After that through the cyanide process the complex formation leads to the silver extraction.

  • Common Questions About Froth Flotation Process Technology

    Apr 17, 2019· Froth flotation is the use of the physical and chemical properties of the surface of the ore, the use of chemical separation of useful ore. In the process of froth flotation, useful minerals are separated by floating them in the foams, and the way of keeping gangue minerals in the pulp is called positive flotation, while the way of floating gangue minerals in the foam is called reverse flotation.>

  • Why Is Froth Flotation Used For Sulphide Ores

    187 why only sulphide ore is concentrated by froth flotationmetals the ore is concentrated by froth assertion sulphide ores are concentrated by froth inquire now chapter 1 and 2 generally made up of intergrown minerals large volumes of concentrated solutions for dissolving these ores sulphide ores inquire now

  • Sulfide Ores - an overview ScienceDirect Topics

    Froth flotation entails attaching fine Cu-sulfide mineral particles to bubbles and floating them out of a waterore mixture. The flotation is made selective by using reagents, which make the Cu-sulfide minerals water-repellant (hydrophobic) while leaving the other minerals wetted (hydrophilic).

  • What is the role of adsorption in froth floatation process

    Best answer In froth floatation process sulphide ore is shaken with pine oil and water, the ore particles are adsorbed on froth that floats and the gangue particles settle down in tank. Thus, role of adsorption in froth floatation process can be understood as following

  • Differences and Applications of Magnetic Separation and

    Dec 22, 2020· Froth flotation machine is generally used for the concentration of sulphide ores. The principle behind froth flotation process is that sulphide ores are preferentially wetted by pine oil whereas gangue articles are wetted by water. In this process, the suspension of a powdered ore is made with water.

  • (PDF) Handbook of Flotation Reagents Chemistry, Theory and

    Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores. Serkan Gökçen. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 36 Full PDFs related to this paper. READ PAPER.

  • In the frouth floatation process, zinc sulphide and lead

    Statement-1:Sulphide ores are concentrated by froth floatation process. <br> Statement-2: Pine oil acts as a frothing agent in froth floatation process. 20471195 3.6k+

  • Important Questions for Class 12 Chemistry Chapter 6

    Dec 06, 2019· Magnetite (Fe 3 O 4) an ore of iron. Question 5. Why is it that only sulphide ores are concentrated by froth floatation process? (All India 2011) Answer: As sulphide ores are wetted with pine oil and their particles come up along with froth, while their gangue (impurities) particles are wetted with water so such particles settle down

  • froth flotation sulphide ore - triple-helix.

    froth flotation process for concentration of sulphide ore. Froth Flotation is the single most important operation used for the recovery and upgrading of sulphide ore. Only sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth.

  • Why Is Froth Flotation Used For Sulphide Ores

    187 why only sulphide ore is concentrated by froth flotationmetals the ore is concentrated by froth assertion sulphide ores are concentrated by froth inquire now chapter 1 and 2 generally made up of intergrown minerals large volumes of concentrated solutions for

  • WO2015007649A1 - Method for recovering a copper sulfide

    In a method for recovering a copper sulfide concentrate by froth flotation from an ore containing an iron sulfide, wet grinding of the ore with grinding media made of high chromium cast iron alloy having a chromium content of from 10 to 35 % by weight is combined with an addition of hydrogen peroxide to the conditioned mineral pulp before or during flotation in order to improve concentrate

  • Froth Flotation Process - Detailed Explanation With

    Thus the sulphide ore comes on the top with the froth and oil. The remaining gangue particles which did not dissolve in oil settle down. The foam is removed and taken for further processing. Thus the minerals are separated by the froth -flotation process.

  • Production of Nickel Concentrate from Ground Sulfide Ore

    Hydrophobic flocculation of sulphide minerals is the main reason that high intensity conditioning improves the flotation recovery of low-grade sulfide ore. Read more Article

  • sulfide ore froth flotation - shrawleyparishcouncil.uk

    Flotation of a copper sulphide ore from Okiep using thiol . Thiol collectors are used in the froth flotation of copper sulphide ores. The xanthates, dithio phosphates and dithiocarbamates are classes of thiol collectors that each form different surface products on different copper sulphide minerals.

  • 7 Factors Affecting Froth Flotation Process - JXSC Machine

    Dec 20, 2018· Froth Flotation machine plays an indispensable role in the mineral beneficiation process, flotation is susceptible to a number of factors during the process, including grinding fineness, slurry concentration, pulp pH, pharmaceutical system, aeration and agitation, flotation time, water quality and other process factors. The factors that affect

  • Concentration of ores by flotation

    No froth RUN VI k1neral ~epartion . Machine . fOO gm. feed . 1000 . gm. sodium resonste -solution . 2800 . gm. wuter £ cc . H~~04. No concentration. jAded the sulphuric acid first and after five minutes running the sodium resonate solution wae added. The froth seems to carry more sphalerite than previoul froths. RUlJ 3 V I I - V . I I I -IX

  • sulphide ore of copper concentration processing machine

    why only sulphide ore is concentrated by froth flotation. Froth Floatation Process Of Sulphide Ore. On an industrial scale, copper sulphide ores are concentrated via froth flotation processes (Ata, 2012;, This method of concentration is used only for sulphide or.

  • Sulphide ores are concentrated by froth flotation process.

    Only sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth. The sulphide ores preferably wetted by the oil and the gangue with the water. Hence A is answer. Answer verified by Toppr

  • Assertion : Sulphide ores are concentrated by Froth

    Sulphide ores are concentrated by froth floatation process.a) Write the name or formula of any two sulphide ores of copper. asked Jan 9 in General Principle and Processes of Isolation of Elements by Sadhri ( 29.3k points)

  • Copper Ore Types: Sulfides versus Oxides Nasdaq

    Apr 23, 2011· Supergene ores rich in sulfides may be concentrated using froth flotation. Types of sulfide deposits. Massive sulfide deposits are formed via

  • Flotation Behavior of Complex Sulfide Ores in the Presence

    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.

  • flotation lead ore concentrate Prominer (Shanghai

    A process for the beneficiation of lead or copper-lead sulphide ore or concentrate containing calcium and magnesium carbonates wherein the ore or concentrate is conditioned with a limited amount of sulphuric acid to form an acidic slurry and subjecting the acidic slurry to froth flotation whereby an upgraded concentrate and a tailing comprising

  • Roasting (metallurgy) - Wikipedia

    Often before roasting, the ore has already been partially purified, e.g. by froth flotation. The concentrate is mixed with other materials to facilitate the process. The technology is useful but is also a

  • Froth Flotation Analysis of Oxidized Lead-Zinc Ore

    Sep 24, 2019· Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic,which is suitable for lead-zinc ore.But the flotation of oxidized lead-zinc ore is a difficult one. In the treatment of lead-zinc oxide ore, it is complicated to choose flotation reagent and process flow.

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