IN THIS ARTICLE. 1  Definition of eczema in babies. 2  Symptoms of eczema. 3  Causes of eczema. 4  Treatments for eczema. 5  Eczema and allergenic foods. 6  Treatment of eczema rash that doesn't get better.
The process for conversion of FGD gypsum to ammonium sulfate and calcium carbonate by the reaction with ammonium carbonate is by a unique combination of countercurrent flows with internal recycle of liquids to maximize the purity of reaction products while minimizing the reaction time.
Ammonium sulphate is manufactured by reacting ammonium carbonate and powdered gypsum and the calcium carbonate sludge thus recovered as a by-product is utilized in the manufacture of cement. This is one of the greatest advantages in utilizing gypsum for fertilizer manufacture.