Ceramic – Glass
Raw materials for Glass Manufacturing:
Solvay’s Process – Brine Purification :
The Brine is one of the most important raw materials in the Solvay’s process. As mentioned plants which are situated near seas can use the sea water as Brine after processing for purification and other plants which are far away from sea should use […]

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 […]

Ceramic – Glass
Raw materials for Glass Manufacturing:
Solvay’s Process: Practically following are the steps followed in soda ash production in the solvay’s process.

The Brine (i.e. Salt Solution) is allowed to react with ammonia to form ammoniated brine.
NaCl + H2O + NH3 — > NaCl + NH4OH
The ammoniated Brine is allowed to react with carbon […]

Raw materials for Glass Manufacturing:
Solvay’s Process: This process produces light soda ash. Soda Ash thus produced has a specific weight of 500 kg/m3. This specific weight is sufficient for using in detergent and chemical application. But for glass manufacturing higher specific weight of atleast 1000 kg/m3 is required.
The light soda ash produced in the solvay’s […]

Ceramic – Glass
Raw materials for Glass Manufacturing:
Preparation of Soda Ash:
Soda Ash is present naturally in evaporated lake beds. Also it can be prepared from ashes of any plant or from sea weeds. But the world demand cannot be met by these natural resources. There are different synthetic methods for producing Soda Ash. It is […]

Ceramic – Glass
Raw materials for Glass Manufacturing:
We shall seen in detail the applicational value of Soda Ash. Soda Ash has a number of industrial application and as mentioned the main one being in glass industry.Soda ash is used in the production of flat glass for the housing, commercial building and automotive industries; for containers, fiberglass […]

Ceramic – Glass
Raw materials for Glass Manufacturing:
Having seen the specification of Silica Sand for Glass manufacturing and techniques for silica sand beneficiation, we shall now see the required specifications and manufacturing process types for the next most important raw material used in Glass manufacturing - Soda Ash. As mentioned in the earlier blogs, 16% of […]

Ceramic – Glass
Raw materials for Glass Manufacturing:
Having seen the processing methods of silica sand, we shall now see the desired specification of silica sand for different varieties of glass.
Specification of Silica Sand for Optical Glass
Silica (SiO2) —————————– 99.5% (Min)
Iron Oxide (Fe2O3) ——————– 0.008% (Max)
Titanium (TiO2) ———————— 0.030% (Max)
Cr2O3 ———————————— 0.0002% (Max)
Specification of Silica Sand for […]

Ceramic – Glass
Raw materials for Glass Manufacturing:
For Silica Sand Processing, it is best to use gravity separation method than froth floatation process. The gravity separation method in combination with magnetic separation process will be the best cost effective silica beneficiation technique. The initial investment required for gravity separation and froth floatation does not vary much […]