Extraction of Crude Metal from Concentrated Ore
Extraction of Crude Metal from Concentrated Ore:
The concentrated ore must be converted into a form which is suitable for reduction. Usually the sulphide ore...
Concentration of Ores
Concentration of Ores
Removal of the unwanted materials (e.g., sand, clays, etc.) from the ore is known as concentration, dressing or benefaction. It involves several...
Isolation of Elements – General Terms
Minerals:
These are naturally occurring chemical substances in the in the earth crust obtainable by mining.
Ores:
Only a few minerals are used as sources of that...
Emulsions
Emulsions
“Emulsions are the colloidal solutions in which both the dispersed phase and the dispersion medium are liquids.”
A good example of an emulsion is milk...
Colloids
Colloids
The colloidal state depends on the particle size. It is regarded as an intermediate state between true solution and suspension.
True Solution:
In true solution, the...
Catalysis
Catalysis
Substances, which alter the rate of a chemical reaction and themselves remain chemically and quantitatively unchanged after the reaction, are known as catalysts, and...
Adsorption Isotherms
Adsorption Isotherms
The variation in the amount of gas adsorbed by the adsorbent with pressure at constant temperature can be expressed by means of a...
Factors affecting the extent of adsorption on solid surface
Factors which affect the extent of adsorption on the solid surface:
The following are the factors which affect the adsorption of gases on the solid...
Difference between Adsorption and Absorption
Difference between Adsorption and Absorption
Main points of difference between adsorption and absorption are given below:
Adsorption
Absorption
It is surface phenomenon.
It concerns with the whole mass of...
Introduction to Surface Chemistry
Surface Chemistry is that branch of chemistry which deals with the study of the phenomena occurring at the surface or interface, i.e., at the...