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

Composition of rna vary from that of dna, How does  the composition of RNA ...

How does  the composition of RNA vary from that of DNA, and how does that affect the chemical stability of the molecule?

Physical methods for non-volatile substances, Physical methods for Non-vola...

Physical methods for Non-volatile substances The non-volatile organic compound's molecular mass can be ascertained by noting either the elevation in boiling point of the solve

Molecular geometries, Use the VSEPR model to predict approximate molecular ...

Use the VSEPR model to predict approximate molecular geometries and electron-domain for the following species. (a) XeF 2 , (b) NH3Cl + , (c) BrO2 -

The electronic configuration of chromium is, The electronic configuration o...

The electronic configuration of chromium is: (1) [Ne]3s 2 , 3p 6 , 3d 4 , 4s 2 ,               (2) [Ne]3s 2 , 3p 5 , 3d 4 , 4s 1 ,            (3) [Ne]3s 2 , 3p 6 , 4s 2 ,

Urea, Chemical nature

Chemical nature

Explain pseudo first order reaction, Give an example of a pseudo first orde...

Give an example of a pseudo first order reaction. Write the IUPAC name of the following: (CH 3 ) 2 C=CHCOCH 3

Show diffrent type of ligands, Q. Show diffrent type of Ligands? Ligand...

Q. Show diffrent type of Ligands? Ligands which contain one donor atom are called monodentate the donor atom may contain One or  more than one lone pairs of electrons. The l

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