Advertisements
Advertisements
प्रश्न
Explain the hydraulic separation method with a neat labelled diagram.
Advertisements
उत्तर
- This method is based on the working of a mill.
- It has a tapering vessel similar to that used in grinding mill. The tapering vessel opens up in a tank-like container that is tapering on the lower side. The tank has a water inlet on the lower side and a water outlet on the upper side.
- The powdered ore is released in the tank and forceful stream of water is introduced into the tank through the water inlet at the bottom.
- The lighter particles of the gangue are carried up by the water jet and pass out along with water flowing out from the outlet near the top and get collected separately while the heavier ore particles are collected at the bottom from the lower side of the tank.
- The reservoir is constructed in a conical shape so that the velocity of the water jet is reduced, thus preventing ore particles from being carried away along with the stream of water.
- This method is based on the principle of gravitation law, wherein particles of identical size are separated by their weight with the help of water.
Hydraulic separation method
APPEARS IN
संबंधित प्रश्न
Explain the following terms:
(c) slag
An ore on being heated in air forms sulphurous anhydride. Write the process used for the concentration of this ore.
`MnO_2 + 4Al` 
…………….
`Cu (OH)2`
................................
`2NaNO_3`
......................
`2Pb(NO3)_2`
.........................
State two properties of brass that render it more useful for some purpose than its components.
Complete the following flow chart and answer the questions below:
i) In which method pine oil is used?
ii) Explain what method of concentration in brief.
The following is a sketch of an electrolytic cell used in the extraction of aluminium :
(a) What is the substance of which the electrode A and B are made?
(b) At which electrode (A or B) is aluminium formed?
(c) What are the two aluminium compounds in the electrolyte C?
(d) Why is it necessary for electrode B to be continuously replaced?
In Wilfley table method to separate particles of gangue _______ method is used.
The chemical formula of zinc blend is _______.
Right or wrong sentence.
Cassiterite is a copper metal.
Write the molecular formulae of the following compound.
Ferrous tungstate
Draw a neat and labelled diagram for Froth Floatation Process.
Explain the froth floatation method with a neat labelled diagram.
Observe the figure and name and explain in brief the following method:
State the reason for the addition of caustic alkali to bauxite ore during the purification of bauxite.
Calculate the difference between heat of combustion of carbon monoxide gas at constant pressure and at constant volume at 27°C? (R = 2 cal K-1 mol-1).
Bassemerisation is used in the extraction of ______.
In leaching of alumina from bauxite by Bayer's process, then ore is treated with ______.
