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.
However, the overall conversion of gypsum to ammonium sulfate and calcium carbonate was 97.47% for Test 3 and 99.07% for Test 6. The calculated conversion of gypsum to calcium carbonate in only Reactor No. 2 (11) was 92.26% for Test 3 and 94.16% for Test 6.