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

Bohr''s principle the relation between principle quantum no, According to B...

According to Bohr's principle, the relation between principle quantum number and radius of orbit is: (1) r ∞ n    (2) r ∞ n 2       (3) ∞1/n  (4) r∞ 1/ n 2 Ans:  r

Colloidal, explain colloidal in a huge way with example and diagram

explain colloidal in a huge way with example and diagram

Electrochemistry, factors that influence ionic migration

factors that influence ionic migration

Effect of substituents on acidity - inductive effect, Effect of Substituen...

Effect of Substituents on Acidity: The complete effect of a substituent on acidity of substituted benzoic acids is because of two factors. (i) Inductive effect: If the subs

Basic diffrence betwwen fission and fusion, Q. Give Basic diffrence betwwen...

Q. Give Basic diffrence betwwen Fission and Fusion? A quick way to remember the difference between fission and fusion: Fusion Fuses: In the nuclear reaction, nuclei are act

.Dienes, Physical properties of dienes

Physical properties of dienes

Boron trihalides are monomeric molecular compounds, The boron trihalides ar...

The boron trihalides are highly volatile; BF 3 (b. p., 173 K) and BCI 3 , (b. p., 260.5 K are gases, BBr 3 a volatile liquid (b. p., 319 K) and Bl 3 a low melting solid (m. p.,

The experimental observation correctly account phenomenon, In which one of ...

In which one of the following pairs of experimental observations and phenomenon does the experimental observation correctly account for phenomenon: (1) X-ray spectra

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