Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering · 2006
Effect of magnesium salts on the sulphation capacity of limestone slurry.
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Ozyuğuran Ayşe, Altun-Ciftçioğlu Gökçen, Karatepe Nilgün, Ersoy-Meriçboyu Ayşegül
Аннотация
The effect of different magnesium salts such as MgO, MgSO(4).7H2O and Mg(OH)2 on the total sulphation capacities of limestone slurries prepared from five different limestone samples was investigated. Sulphation reactions of slurries were conducted at a constant temperature of 323 K in a gaseous mixture consisting of 5% O2, 10% CO2, 0.5% SO2 and a balance of nitrogene by volume. It was found that the total sulphation capacities of limestone slurries increased with the addition of MgO and Mg(OH)2 salts and decreased with the addition of MgSO4.7H2O salt. Depending on the chemical composition of the limestone samples the total sulphation capacities of limestone slurries were increased between 22.30% and 75.00% by MgO addition and between 23.70% and 69.00% by Mg(OH)2 addition.