Production process of ammonia aluminium sulphate(amonia alum)

Ammonium alum((NH₄)Al(SO₄)₂·12H₂O.) is an extremely useful and profitable mineral salt. It is used as laboratory reagent, water purification, in vegetable glues, in porcelain cements, in deodorants and in tanning, dyeing and in fireproofing textiles.

Manufacturing process

The first step of the manufacturing process is as follows,

Leaching of ammonia and Aluminium trihydroxide (Al(OH)3) by Sulfuric acid (H2SO4) 

               Ammonia + Sulfuric Acid --> Ammonium Sulfate

               Aluminium trihydroxide + Sulfuric Acid -->Aluminum Sulfate

In the second step, the products Ammonium Sulfate and Aluminum Sulfate are combined using hydrometallurgy process,

Ammonium Sulfate + Aluminum Sulfate --> Ammonium Aluminum Sulfate (Ammonium Alum)