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Role of depressant in froth floatation

In the froth floatation process, the role of the depressants is to separate two sulphide ores by selectively preventing one ore from forming froth For example, to separate two sulphide ores ZnS and Pbs, NaCN is used as a depressant which selectively allows PbS to e with froth, but prevents ZnS from ing to froth

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  • 1 Froth Flotation Fundamental Principles

    roth flotation is a good example of an engineering system, in that the various important parameters are highly interrelated, as shown in Figure 1 It is therefore important to take all of Chemistry Components Collectors Frothers Activators Depressants pH Equipment Components Cell Design Agitation Air Flow Cell Bank Configuration

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  • A Write The Principle Of Electrolytic Refining B W

    c Activators and depressants are the pounds which activate and depress respectively the floating property of one of the ponents of the ore and thus, help in the separation of different minerals present in the same ore Copper sulphate is an example of activator, while sodium and potassium cyanides are the examples of depressants

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  • An Investigation Into The Flotation Of Muscovite W

    Selective separation of muscovite from quartz and feldspar by froth flotation is possible using Custamine 8113 and NorligH, however reagent concentrations particularly depressant dosage play a strong role in the effectiveness of the separation Increasing collector concentrations without increasing depressant dosages increases gangue recoveries

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  • Ask Questions For CBSE Class 12 Chemistry Isolatio

    In froth floatation process,depressants helps to separate two sulphide ores by selective prevention of froth formation by one ore and allowing the other to e into froth For example, in order to separate two sulphide ores ZnS and Pbs, NaCN is used as a depressant It selectively allows PbS form froth, but prevents ZnS from ing to froth

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  • He Effect Of Sodium Silicate As PH Modifier And

    he Eect of Sodium Silicate as pH Modier and Depressant in the Froth Flotation of Molybdenite Ores ChulHyun Park and HoSeok Jeon* Korea Institute of Geoscience and Mineral Resources, Daejeon 305350, Korea In otation of porphyry molybdenite ores or coppermolybdenite ores using oil collector, a molybdenite MoS

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  • Important Questions For CBSE Class 12 Chemistry Ge

    Aug 18, 2018 b What is the role of depressant in froth floatation process Answer: a Cu 2 S and FeS are the constituents of copper matte b Depressants are used to separate two sulphide ores NaCN is used as depressant in separation of ZnS and PbS It selectively prevents ZnS from ing to froth but allows PbS to e with froth 2012

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  • Important Questions For Class 12 Chemistry Chapter

    Aug 09, 2019 i Role depressant in forth floatation process ii Role of silica in the metallurgy of copper iii Role of cryolite in the metallurgy of aluminium Comptt Delhi 2016 Answer: i To selectively prevent the formation of froth by one of the sulphide ore present in a mixture of sulphide ores ii To remove impurity FeO in the form of slag FeSiO 3

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  • Lotation Depressants Mineral Processing Metallurgy

    irst lets change the amount of the Flotation Depressants used The valuable mineral that isnt liberated from the unwanted mineral will begin to be depressed along with the waste For the floatation operator, the change that will bee most apparent is, that the color of the froth will begin to reflect more of the wanted minerals color

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  • Lotation Froth An Overview ScienceDirect Topics

    Since froth flotation and oil agglomeration relies on the surface properties of coal in separating particles, coal petrology plays an important role in the process Arnold and Aplan 1989 reported a number of studies which examined maceral partitioning or lithotype partitioning, generally without consideration of the maceral association

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  • Lotation Reagents Mineral Processing Metallurgy

    lotation Depressants What is a Flotation Depressant used for The function of depressants is to prevent, temporarily, or sometimes permanently, the flotation of certain minerals without preventing the desired mineral from being readily floated Depressants are sometimes referred to as inhibitors

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  • NCERT Solutions For Class 12 Chemistry Chapter 6 G

    Jul 16, 2019 In froth floatation process, the role of the depressant is to prevent one type of sulphide ore particles from forming the froth with air bubbles For example, NaCN is used as a depressant to separate lead sulphide PbS ore from zinc sulphide ZnS ore

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  • Role Of Collectors And Depressants In Mineral Flot

    he depressant molecule length is also a dominant parameter in designing a powerful depressant Keywords: otation; collector; depressant; surface roughness; extended DLVO theory 1 Introduction Flotation is a type of interfacial separation technique that is based on the difference in the surface hydrophobicity of different ponents [1,2]

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  • ROLE OF DEPRESSENT IN FROTH FLOATATION PROCESS

    Depressants prevent certain type of particles from forming froth during froth floatation process A mon depressant used in the froth floatation of lead sulphide is sodium cyanide When the ore containing ZnS and PbS is subjected to froth floatation process

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  • Role Of Flotation Reagents Goerrestandartspraktijk

    role of depressant in froth flotation chemical reagents used in froth flotation, a solids separation technique whose success play a very important role in the development of new, environmentally reagents are monly grouped into five classes: collectors, depressants, Get price

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  • Role Of Surface Chemistry Of Fine Sulphides In The

    a finely disseminated nature, most of the loss in the important role in determining the flotation of fines of flotation of the 8SOfo 44jlm feed is in the Silm size these minerals fraction1 The problem of loss of finely disseminated " values during the processing of sulphides has been ~

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  • Roles Of Depressants In Flotation Of Sulphide Mine

    In this chapter, the depression mechanism of five kinds of depressants is introduced respectively The principle of depression by hydroxyl ion and hydrosulphide is explained which regulates the pH to make the given mineral float or not And so the critical pH for certain minerals is determined

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  • Roth Flotation Of Iron Ores Sapub

    In the reverse flotation of iron ores, froth washing was found effective in reducing the loss of FINE iron oxide particles to froth It was reported that the cost of installing a column flotation circuit is approximately 25% 40% less than an equivalent flotation circuit of mechanical flotation cells [60]

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  • Rothers Froth Flotation ArrMaz

    rothers Froth Flotation The importance of frothers in mineral flotation is widely acknowledged in the mining industry Frothers perform the following key functions in the froth flotation process: Reduce surface tension of the liquidgas interface to enable froth formation; Hinder coalescence in order to stabilize bubble size

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  • Solved What Is The Role Of Depressant In Froth

    Jun 15, 2015 For example, lead sulphide generally has zinc sulphide also present as impurity which will also float in the froth floatation process along with the lead sulphide To make sure that lead sulphide floats but zinc sulphide do not float, we add depressants

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  • What Is The Role Of Adsorption In Froth Floatation

    Aug 07, 2018 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 tankThus, role of adsorption in froth floatation process can be understood as following processes i Adsorption of

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  • What Is The Role Of Cryolite In The Metallurgy Of

    Cryolite Na3AlF6 has two roles in the metallurgy of aluminium: 1 To decrease the melting point of the mixture from 2323 K to 1140 K 2 To increase the electrical conductivity of Al2O3

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  • What Is The Role Of Depressant In Froth Floatation

    EXPERT ANSWER A mon depressant used in the froth floatation of lead sulphide is sodium cyanide When the ore containing ZnS and PbS is subjected to froth floatation process in the presence of NaCN, then only PbS forms the froth This happens because NaCN reacts with ZnS to form Na2 [Zn CN4]

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  • What Is The Role Of Depressant In Froth Floatation

    In the froth floatation process, the role of the depressants is to separate two sulphide ores by selectively preventing one ore from forming froth For example, to separate two sulphide ores ZnS and Pbs, NaCN is used as a depressant which selectively allows PbS to e with froth, but prevents ZnS from ing to froth

    Oline Chat
  • What Is The Role Of Depressants In The Froth Float

    In the froth floatation process, the role of the depressants is to separate two sulphide ores by selectively preventing one ore from forming froth For example, to separate two sulphide ores ZnS and Pbs, NaCN is used as a depressant which selectively allows PbS to

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  • What Is The Role Of NaCN In Froth Floatation Brain

    What is the role of NaCN in froth floatation Ask for details ; Follow Report by AbhishekDixit8571 17022018 Log in to add a ment Answers Hii NaCN is used as depressant in froth flotation process As a depressant,NaCN separates two sulphide oresZnS,PbS allows PbS to form froth preventing ZnS to form froth

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