Advertisements
Advertisements
Question
Explain the hydraulic separation method with a neat labelled diagram.
Advertisements
Solution
- 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
RELATED QUESTIONS
Give the importance of the following for living beings:
Nitrogen
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive metal.
Give the effect of heat on their ?
oxides
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is a more reactive metal.
Give the effect of heat on their: nitrates
Name:
(b) two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen
`Cu (OH)2`
................................
`2NaNO_3`
......................
Give the ionization reactions of electrolyte used in Hall’s process. write the reaction at the cathode and the anode. Why the anode has to be replaced in this process?
Which metal is used for:
making pipes, buckets, water tanks,
Which metal is used for:
making face creams
State two properties of brass that render it more useful for some purpose than its components.
Explain the term Metallurgy.
Why does iron or zinc not occur free in nature?
In Wilfley table method to separate particles of gangue _______ method is used.
Write scientific reason.
Magnetic separation method is used to separate the magnetic ingredients in the ores.
Explain concept with example/explain with the help of a balanced equation.
Minerals
Observe the figure and name and explain in brief the following method:
Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?
Limestone is used as a flux in the extraction of ______.
Which of following metals occurs in native state?
Calcination is used in metallurgy for the removal of?
