Lecturer : Azim khan
Online watch PPT and Question Bank
WWW.AKChem.blogspot.com
80% Metal
?
Combined state Native state
Remember all ore are
mineral but not all mineral
are ore.
The process Removal of gangue from the ore.
Also Called
Working-
filtered
Which also impure
filteredHall process
Leaching agent- Diluted solution of NaCN or KCN in presence of air.
Same diagram
When basic gangue given then we used acidic flux. Similarly when acidic gangue……
chemical process combining water, oxygen or other substances in a pressurized or other vessel to dissolve a metal from its ore,
concentrate or an intermediate product .
high temperatures to extract and purify metals
By using electricity
-ve value shows the stability.Inthis method we are finding best reducing agent for ore.
determine conditions such as the necessary temperature needed to reduce the ores of essential metals.
Ellingham explaining the formation of
different metal oxide reaction
and the G value.
This method use for Cu, tin which
contain oxide impurities.
Eg. Cu before impurity 98% after
purity 99.5%.
Also called fractional crystallization method Purity
Melted sideimpurity
Ni tetracarbonyl
Zirconium(IV) iodide
It undergo decomposition to give pure metal.
Steam
This method used to remove the O and N
completely present in the impure form of certain metal like Zr and Ti. The impure metal is heated in a
vessel with little Iodine to form iodide metal.
adsorbent
Column chromatography
The circular part is an Ore
Ore
Portrait of Charles Martin Hall in 1905.
Molten Al
1Kg of Al produced from
0.5Kg of Carbon.
Top Related