• Froth flotation method


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1.Froth flotation is considered to be the most widely used method for ore beneficiation In ore beneficiation, flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer

2."The single most important method used for the recovery and upgrading of sulfide ores", that's how G J Jameson described the froth flotation process in 1992 And it's true: this process, used in several processing industries, is able to selectively separate hydrophobic from hydrophilic materials, by taking advantage of the different

3.what is the role of Depressant in froth floatation method Share with your friends 31 In the froth flotation process we want some substances to settle down and some substances to float Now naturally, the sulphide of the substance we want to extract will float and the "gangue" or useless material will sink

4.Froth flotation is considered to be the most widely used method for ore beneficiation In ore beneficiation, flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer

5.Froth flotation definition isflotation in which air bubbles are introduced into a mixture of finely divided ore or other material with water and a chemical that aids attachment of the bubbles to the particles of the desired material and its recovery as a froth

6.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 mineralwater slurry

7.Froth Floatation Process In some cases for example, sulphides ores of copper, zinc and lead concentration is brought by this method In this method advantage is taken of the referential wetting of the ore by an oilThe finely ground ore is taken in a tank

8.Froth Flotation Froth flotation has been used to separate discrete mineral particles since the early 1900's The key to effective separation of the minerals depends on differences in the surface chemistry of the minerals to be separated

9.Summary The course is divided into two broad sections: the science surface chemistry of flotation, and; flotation technology and practice The course content is structured to provide a review of the current state of the fundamentals and technology of froth flotation

10.What is the role of depressant in froth floatation process Answer 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 come with

11.The froth of copperrich bubbles at the top of the tank is then skimmed off for further processing The gangue sinks to the bottom of the tank to be removed or disposed of as mine tailingsThe next stage after froth flotation is the thickening stage

12.Separation Using Foaming Techniques P SOMASUNDARAN HHRY Kauwa SCHOOL OF MINES roLUN8IA UNIVDSITY NEW YORK NEW YORK 10027froth flotation employs a relatively high gas flowrate under turbulent conditions Next to froth flotation, the most usefuling methods have been collectively called adsorptive bubble separation techniques 4

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