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

Bioinorganic chemistry, BIOINORGANIC CHEMISTRY Life is sometimes thought...

BIOINORGANIC CHEMISTRY Life is sometimes thought of as 'carbon chemistry', but around 25 components are essential for life. It is normal to divide these into trace elements an

Commercial cells, Prepare an assignment on the topic commercial cells

Prepare an assignment on the topic commercial cells

Biochemisty, High energy bond in the intermediary metabolism

High energy bond in the intermediary metabolism

Explain about molecular orbital theory, Q. Explain about Molecular orbital ...

Q. Explain about Molecular orbital theory? Molecular orbital theory is a completely different approach. It starts with identifying the metal orbitals and the ligand orbitals (h

Carbonyls, how to find the structure of Mn2(CO)10

how to find the structure of Mn2(CO)10

What are the major poisnous gases, What are the major poisnous gases releas...

What are the major poisnous gases released during burning of the plastic substances?????   Ans) It is high time that we start taking concrete steps in order to prevent pollution or

What are the rules used for round off numbers, Q. What are the rules used f...

Q. What are the rules used for round off numbers? 1. If the digit to the instantaneous right of the last significant figure is less than five don't change the last significan

POTENTIOMETRIC TITRATION, WHAT TYPE OF CHEMICAL REACTION IS INVOLVED IN POT...

WHAT TYPE OF CHEMICAL REACTION IS INVOLVED IN POTENTIOMETRIC TITRATION

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