What is the electrometallurgy, Chemistry

Assignment Help:

Q. What is the Electrometallurgy?

The above two metallurgical processes, namely pyrometallurgy and hydrometallurgy can be used in the extraction of a fairly large number of metals. These processes, thus, cannot be used in cases:

  • Where the metal is extremely reactive, e.g., Li, Na, etc. There are not any chemical-reducing - agents strong enough to make these metals
  • Where the oxide gets reduced only at high temperatures at which preparation of carbides also takes place, e.g., Mg, Al, etc.

In these cases, metals can be extracted by electrolysis of their salts in molten state. Thus, magnesium and sodium are generated by electrolysis of fused chlorides, where the metals re Iiberated at the chlorine and cathode gas is evolved at the anode. Given reactions take place in the mean while electrolysis:

Anode: 2Cl- ---------> Cl2 (g) + 2e

Cathode: 2Na+ 2e ------> 2Na (l)

Mg2+ + 2e---------------> Mg (l)

523_What is the Electrometallurgy.png


Related Discussions:- What is the electrometallurgy

APPLICATIONS OF INORGANIC COMPOUNDS, find two different substances and how ...

find two different substances and how they are produced. Once you have this information, look at their properties and how they are used, and explain how these properties affect th

Explain an lewis acid-base, An Lewis acid-base dissociation of the bromide-...

An Lewis acid-base dissociation of the bromide-essentially an SN1 reaction-gives an a-hydroxy carbo-cation, which is, by resonance, also the conjugate acid of acetophenone. Deproto

Composition of the nucleus, Q. Composition of the nucleus Since the tim...

Q. Composition of the nucleus Since the time of Rutherford, other scientists have learned a significant amount about the fundamental properties about the nucleus of an atom. In

Ionisation enthalphy, what is the relevance of half filled and completely f...

what is the relevance of half filled and completely filled orbitals in ionisation enthalphy ditermination

What is carcinogenic substance?, A carcinogen is any substance,  radiation ...

A carcinogen is any substance,  radiation or radionuclidethat is an agent directly involved in causing cancer. This may be due to the ability to break the genome or to the disrupti

Name the health benefit of soya protein, Q. Name the health benefit of soya...

Q. Name the health benefit of soya protein? Soya protein reduces cholesterol levels in hypercholesterolemic individuals.

Lyman series, For a hydrogen atom, calculate the wavelength (in nm) of an e...

For a hydrogen atom, calculate the wavelength (in nm) of an emitted photon in the Lyman series that results from the transition n = 3 to n = 1

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