Ores amenable to concentration by flotation. Almost any ore consisting of a mineral of metallic, resinous, or adamantine luster associated with the usual rock-forming minerals, can be concentrated by flotation. ... Thus in an ore containing both sulphide and oxide copper the recovery credited to the process should be based on the sulphide ...
The points to be explained in the operation of these processes are: (1) The flotation of solid particles in a liquid the specific gravity of which is less than that of the solid; (2) the preferential flotation of the sulphide portion …
Froth flotation is a process for selectively separating hydrophobic materials from hydrophobic. In some cases, for example, sulphides ores of copper, zinc and lead concentration is brought by this method. In this method, the advantage is taken of the preferential wetting of the ore by an oil.The finely ground ore is taken in a tank containing water and 1% of pine oil or turpentine oil.
We can use the froth floatation process mainly for concentration of sulphide ores. In this method, the crushed ore is suspended in water and air is passed using a motor into the suspension. To this mixture, a collector such as pine oil is added so that it selectively wets the ore while water wets the surface of gangue particles.
Click here:point_up_2:to get an answer to your question :writing_hand:froth floatation process for the concentration of ores is an illustration of physical phenomenon of ... Froth flotation is a highly versatile method for physically separating particles based on ... Froth floatation process for the concentration of sulphide ores is an ...
Flotation froth is a process used in the mining industry to physically separate particles based on their ability to adhere to air bubbles. ... picked up by the rougher cells. Dried flotation concentrates contain from 20 to 30% copper (frequently 25–28%). The concentration process recovers 80–90% of the metal content of the ore feed ...
Froth flotation is one of the most versatile and flexible of all mineral separation processes. Reasonable results are fairly easy to obtain but outstanding performance from a circuit requires constant attention and good understanding of the process and ore. Some of the variables that affect the operation and control of a flotation process are ...
Sulphide ores of metals are usually concentrated by Froth Flotation process. Which one of the following sulphide ores offers and exception and is concentrated by chemical leaching? View Solution. Q3. ... Froth floatation process used for the concentration of sulphide ore:
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. The principle of froth flotation process is that sulphide ores are preferentially wetted by the pine oil, whereas the gangue particles are wetted by the water. Hence the method used for the concentration of sulphide ores is froth flotation.
Froth flotation process used for the concentration of sulfide ore _____. is based on the difference in wettability of different minerals; all of the above statements are correct; uses N a C N as depressant in the mixture of ZnS and PbS when ZnS forms soluble complex and Pbs forms froth; uses sodium ethly xanthate, C 2 H 5 O C S 2 N a as collector
In the case of froth floatation method for concentration of ore, this method is mainly employed or used for the concentration of sulphide ore. This method is based on the different wetting characteristics of the gangue or impurities and the sulphide ore with water and oil. The gangue preferentially wetted by water and the ore by oil.
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 …
Froth floatation process is used for the sulphide ores. In this method, wetting of the ore by an oil takes place. A strong current of air is blown through the suspension, producing a heavy froth or on the surface.
Copper sulfide ores must be concentrated before they can be economically transported and smelted. The universal technique for this concentration is froth flotation of finely ground ore. Froth flotation entails attaching fine Cu-sulfide mineral particles to bubbles and floating them out of a water–ore mixture.
"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 …
Additional Information Applications of froth flotation: (1) This process is used for purification of potassium chloride $text{(KCl)}$ from sodium chloride $text{(NaCl)}$. (2) This process is used in paper recycling, mineral processing and waste-water treatment industries. Note: Not all types of ores can be obtained by the froth flotation ...
Froth flotationis an important concentration process that can be used to selectively separate hydrophobic materials from hydrophilic waste gangue. In a more simple context, froth flotation is one of the most popular operational processes for mineral beneficiation. In ore/mineral beneficiation, froth flotation is a method by which co…
Only suplhide ores are concentrated by froth floatation process because pine oil selectively wets the sulphide and hence brings it to the froth. Pine oil or eucalyptus oil has tendency to wet metal sulphides. Thus sulphide ore is present in oily froth whereas gangue particles settle at the bottom,and hence fuller concentration is achieved.
To purify the sulphide ores we can use froth flotation method. Ores. The metal can be extracted economically and conveniently from the ore. Gangue. The impurities present in the ore is called as gangue particles. Sulphide Ores. These are type of ores containing sulphide (S 2-) part in it. Example: galena (PbS), cinnabar (HgS) In froth flotation ...
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in several processing industries. ... Froth floatation process is used for the concentration of sulphide ores. This process is an illustration of the practical application of:
sulphide minerals from their ores. Various novel techniques that take advantage of controlling the electrochemical and physical behaviour of the flotation system are also presented. The practice of sulphide minerals flotation is as old as the flotation process itself. In the United States, for example, the first froth flotation plant began ...
An effective flotation application requires understanding and optimization of four key flotation process components, including the mineralogical properties of the ore, surface chemistry, process ...
Froth Floatation Process: This process is best suitable for sulphide ores. The process is based on different wetting characteristics of the ore and gangue particles with water and pine oil. The ore is wetted by oil and impurities are wetted by water. ... Exception to froth flotation .
Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation …
Froth flotation is a method for separating and concentrating ores by exploiting differences in surface properties between minerals. Finely ground ore particles are suspended in water and …
Froth Floatation process : 1. This method is mainly useful for sulphide ores which have no wetting property whereas impurities get wetted. 2. The ore with impurities is finely powdered and kept in water taken in a floatation cell. Froth floatation process for the concentration of sulphide ores . 1. Air under pressure is blown to produce froth ...
The froth flotation process was done using Sodium hydroxide and Hydrogen tetraoxosulphate (VI) acid as hydrogen potential (pH) modifier within the range of 4,5,7,9 and 10.
Examples of sulphide ores are zinc blende, lead sulphide, etc. Thus, the role of adsorption in the froth flotation process used especially for concentration of sulphide ores is adsorption of pine oil on sulphide ore particles. Thus, the correct option is (B) adsorption of pine oil on sulphide ore particles. Note: The process of froth floatation ...
In the froth floatation process, the role of the depressants a mizture of sulphide ores by selectively preventing one ore from forming froth. For instance, to separate two sulphide ores ZnS and P bS, N aCN is used as a depressant. N aCN alllows P bS to froth up and rise by forming a soluble …
Base metals from pristine sulphide ores have traditionally been beneficiated using the froth flotation technique. The process is regarded as a flexible approach for handling a variety of sulphide ores. ... The ore's high concentration of copper silicate minerals, which are complex and difficult to float, were the cause of the poor recoveries ...
"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 categories of hydrophobicity that are …
One of the processes used for concentration of ores is Froth floatation process. This process is generally used for concentration of sulphide ores. Sometimes in this process we add NaCN as a depressant. NaCN is generally added in case of ZnS and PbS minerals. What is the purpose of addition of NaCN during the process of Froth floatation ?
Froth floatation process for the concentration of sulphide ores is an illustration of the practical application of :
Froth flotation is a technique that is used selectively for materials that are hydrophobic or hydrophilic. Hydrophobic means water repelling and hydrophilic means water loving that has affinity for water. Froth flotation process starts with increasing the surface area of ore. Firstly, the ores are crushed into fine powder and mixed with water.
Froth flotation is widely used for concentration of base metal sulphide minerals in complex ores. One of the major challenges faced by flotation of these ores is the ever varying grade and mineralogy.
Example: Concentration of Sulphide Ores using Froth Flotation: Sulphide ores are hydrophobic, while the gangue particles are hydrophilic. Collectors and frothers are added to the ore-water mixture. Air bubbles are introduced, which carry the sulphide ore particles to the surface to form froth, while the gangue particles sink.
A mixture of water, pine oil, detergent, and powdered ore is first taken in a tank. A blast of compressed air is blown through the pipe of a rotating agitator to produce froth. The sulphide ore particles are wetted and coated by pine oil and rise up along with the froth (froth being lighter).
Froth flotation is a process for selectively separating hydrophobic materials from hydrophobic. In some cases, for example, sulphides ores of copper, zinc and lead concentration is brought by this method.In this method, the advantage is taken of the preferential wetting of the ore by an oil.The finely ground ore is taken in a tank containing water and 1% of pine oil or turpentine oil.