Explain about gravity separation, Chemistry

Assignment Help:

Q. Explain about Gravity Separation?

This is one of the simplest processes of concentration of ores. It is based on the difference in the specific gravities of the gangue and ore. In this process, the crushed ore is kept on top of a sloping table, which is prepared to vibrate. A stream of water is goes in the direction perpendicular to the slope. The lighter particles are thrown up by vibration and are replaced by the water stream. The heavier mineral particles settle to the base and are collected. This process of gravity separation is called as tabling. Casseterite or tin-stone, pitchblende and chromite are concentrated by this method.

A modification of the above process is sinking and float method. In this the powdered ore is suspended in a liquid whose specific gravity is intermediate between the ore and the densities of gangue. The lighter material floats and the heavier material sinks. In this process, the difficulty is in finding a liquid of the proper specific gravity. A solution of calcium chloride in after is usually used. Suspensions of sand in water giving liquids of specific gravities up to 3.2 are also used. Thus, due to technical problems this process is rarely used in concentration of low grade ores, but it is widely used in cleaning coal.


Related Discussions:- Explain about gravity separation

Chemical bonding, what is cause of chemical combination?

what is cause of chemical combination?

#coordination compounds, #why is cis-platin preferred for anti-cancer medic...

#why is cis-platin preferred for anti-cancer medicine over trans platin

In heisenberg''s uncertainty equation, In Heisenberg's uncertainty equation...

In Heisenberg's uncertainty equation Δ x ×Δ p ≥ h/ 4 Π  ;   stands for: (1) Uncertainty in energy    (2) Uncertainty in velocity (3) Uncertainty in momentum (4) Uncert

What are the primary source of energy, Q. What are the primary source of en...

Q. What are the primary source of energy ? Oils and fats form an integral part of the dietaries the world over. In the body they are the primary source of energy. As you know,

Isolation and purification of metals, Q. Isolation and purification of meta...

Q. Isolation and purification of metals? metals as a group of elements have acquired a unique importance in the modern world. However, nature' does not generally offer us metal

Practical, How I write chm practice khata

How I write chm practice khata

Law of constant proportion., plzzzzzzz sir giv me some information about la...

plzzzzzzz sir giv me some information about law of constant proportion my email id is [email protected]

What are the effect of impurities on resistivity, Effect of impurities on r...

Effect of impurities on resistivity: A  small  percentage  of  impurities  can  result  in  substantial  increase  in  resistivity  i.e. decrease in the conductivity. Mathem

Atomic absorption troublshouting, Dear sir, We need your consultancy in a t...

Dear sir, We need your consultancy in a technical problem that we are confronting, and we would really appreciate your help We are in the process of implementing the heavy metal an

Why iodide ion is a good nucleophiles, Iodide ion is a good nucleophiles ...

Iodide ion is a good nucleophiles Because iodide ion is a good nucleophiles and the trimethyloxonium ion is an good alkylating agent, alkylation of  the iodide ion occu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd