What Is The Role Of Depressant In Froth Floatation Process
Depressants are those substances which selectively prevent certain type of particles from forming the froth with the bubbles For example NaCN is added as a depressant for the separation of an ore containing ZnS and PbS An Ellingham diagram is a
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Depressants prevent certain type of particles from forming froth during froth floatation process a common 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
What is the role of depressant in froth floatation process list your institute sign in sign up ask question qampa what is the role of depressant in froth floatation process anonymous user chemistry 13 apr 2019 61 views answers 1 post your answer
In froth floatation process it is used to separate two sulphide ores by preventing the formation of froth of one sulphide ore and allowing the other to form the froth for example nacn a depressant selectively prevents zns from coming in froth but allows pbs to come with the froth
Aug 10 2012018332froth flotation froth flotation process froth flotation method flotation process inquire now pdf selective froth flotation concentration of antimonite the froth flotation process is used for ore concentration by washington mutatu soils and chemistry zimbabwe sugarcane experiment station inquire now
Oct 15 2019183 cbse 2014 class 12 chemistrynacn used in the froth flotation method for the purification of ore isfroth flotation is a process of 1 verified answer view answer froth floatation process is based on the different wetting inquire now ncert exemplar class 12 chemistry chapter 6 general
What is the role of collectors in froth floatation process answer refer ans to q 18 question 39 what is the role of a depressant in froth floatation process for the concentration of a sulphide ore answer depressants are used to separate two sulphide ores nacn is used as depressant in separation of zns and pbs
In froth floatation processdepressants helps to separate two sulphide ores by selective prevention of froth formation by one ore and allowing the other to come into froth for example in order to separate two sulphide ores zns and pbs nacn is used as a depressant
A explain what froth flotation is and give five factorsreasons that make froth flotation important in ore processing 6 b different classes of reagents are used in the flotation process explain the roles of the following reagents and give an example of each class i frothers 2 ii collectors 2 depressants 2 iv activators 2
Froth flotation has been one of the most important and widely used methods to concentrate minerals since its introduction over a hundred years ago will no doubt play an important role in the
First 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 become most apparent is that the color of the froth will begin to reflect more of the wanted minerals color this is because the froth is becoming purer as
Nov 22 2019nbsp018332depressants prevent certain types of particles from forming froth with bubbles due to this we can separate two sulphide ores for example sodium cyanide is a depressant used for an ore containing zns and pbs nacn forms a layer of the complex na2zncn4 on the surface of zns and prevents it from forming a froth thus it acts as a depressant
Depressants are added to prevent certain type of particles from forming the froth with the air bubbles for example to separate zinc sulphidezns ore from lead sulphidepbs oresodium cyanide is used as adepressant which acts as adepressant for zns but does not prevent pbs from the formation of froth thus the two ores can easily be separated
What is the role of depressants in froth floatation method which ores are concentrated by froth floatation process write in brief description and draw labelled diagram asked apr 9 in principles and processes of isolation of elements by pawan01 50k points
In froth floatation processdepressants helps to separate two sulphide ores by selective prevention of froth formation by one ore and allowing the other to come 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 coming to froth
Flotation ore dressing britannica flotation in mineral processing method used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic conditionthat is the surfaces are either repelled or attracted by water the flotation process was developed on a commercial scale early in the 20th century to more
Collectors are reagents that are used to selectively adsorb onto the surfaces of particles a monolayer is formed by the collectors on the particle surface that essentially makes a thin film of non polar hydrophobic hydrocarbons the collectors greatly increase
Thomas battle james mcclelland in treatise on process metallurgy industrial processes 2014 1221221 froth flotation the froth flotation process is more than a century old and was developed over a long period of time 8it takes advantage of the surface chemistry of fine particlesif one particles surface is hydrophobic and another is hydrophilic upon generation of air
What is the role of each of the following in froth floatation process i collectors ii froth stabilizers iii depressants chemistry topperlearningcom y21t9dvxx
The role of depressant in froth floatation process is to prevent certain type of materials from forming the froth with bubbles for example to separate two sulphide ores zns and pbs nacn is used as a depressant which selectively allows pbs to come with froth but prevents zns from coming to froth this happens because nacn reacts with zns to form na2zncn44nacnzns na2zncn4
Jun 052020 iii what is the role of depressants in froth floatation process edurev class 12 question is disucussed on edurev study group by 156 class 12 students
Role of froth floatation is that wetability of gangue particles like pine oil 1 the role of collector in the froth floatation process is that it enhance non wettability of mineral particles1 collectors enhance nonwettability of mineral particles by water
If the abovementioned thing is taken into consideration the role of cecuso4 is to provide cecu2 which will act as an activator in the manner explained above also the role of cyanide ions may be cyanide cecn is a particularly useful depressant in sufide mineral flotation
A study of flotation froth phase behaviour froth surface velocities were then used to explain the 22 review of the flotation process 10082012 183 froth flotation froth flotation process froth flotation method flotation process what is the role of flotation froth in the flotation process froth floatation process icbsecom
What is the role of depressant in froth floatation methodshare with your friendsin the froth flotation process we want some substances to settle down and some substances to floatnow naturally the sulphide of the substance we want to extract will float and the gangue or useless material will sinka common depressant used in the
Jan 09 2020nbsp018332iii by using depressants in the process two sulphide ores can be separated iv froth stabilisers decrease wettability of gangue in the froth floatation process zinc sulphide and lead sulphide can be separated by i using collectors ii adjusting the proportion of oil to water iii using depressant iv using froth stabilisers
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