Ceramic – Glass
Raw materials for Glass Manufacturing:
Solvay’s Process – Sodium bicarbonate Formation :
Separation of sodium bicarbonate crystals from mother liquor is achieved by means of centrifuges or vacuum filters. After washing of the cake to eliminate mother liquor chloride, it is sent to calcination. The liquid phase “mother liquor” is sent to the distillation sector for ammonia recovery. Where filters are used, air is pulled through the cake by means of vacuum pumps. Thereafter, this gas carrying ammonia and some CO2 is cleaned by a washer fed with purified brine before exhausting to atmosphere. “Crude” sodium bicarbonate manufactured by the carbonation process is the primary “output” of the Solvay ammonia soda process. The bicarbonate produced in this way is the feed to the calcination stage described, for the conversion to the finished product solid soda ash.
To be Contd…
