Raw materials for Glass Manufacturing:
Solvay’s Process: The soda ash formed as a result of the process explained in the last blog is of light dense type. To convert that light soda ash into dense type, densification process has to be followed. In Densification process water is added to the Sodium Carbonate and as a result sodium monohydrate is formed
Na2CO3 + H2O — > Na2CO3.H2O
This process is then followed by drying where the water is liberated to give dense soda ash
Na2CO3.H2O — > Na2CO3 + H2O
So considering the above said process, the whole production process of soda ash can be divided into
- Brine Purification
- Lime calcination and milk of lime production
- Ammonia Absorption
- Sodium bicarbonate Precipitation
- Separation of Sodium bicarbonate from mother liquor
- Calcination of Sodium Bicarbonate
- Ammonia Recovery
- Product Storage and handling
We shall see in detail each of the above said process steps in the coming blogs.
To be Contd….
