STIRRING AND NON-STIRRING METHODS USED TO MAKE SYNTHETIC DOLOMITE-BASED EPSOM SALT
DOI:
https://doi.org/10.30556/imj.Vol9.No1.2006.654Keywords:
STIRRING AND NON-STIRRING METHODS USED TO MAKE SYNTHETIC DOLOMITE-BASED EPSOM SALTAbstract
The increasing need of magnesium sulfate heptahidrat by various industries and the limited availabil- ity of this material in nature are two reasons to produce MgSO4.7H2O synthetically. Basically, such a material can be produced from dolomite. A laboratory scale of dolomite-based epsomite making which employed two crystallization processes was conducted. Those were stirring and non-stirring methods and the results showed that stirring one yielded 98.2312 to 98.7244 % MgSO4.7H2O salt. The non-stirring method produced salts of 97.5929 – 99.0378%. Yet prior to salt processing, magne- sium sulfate solution was evaporated at 100 – 110°C to get solution densities around 1.35, 1.38 and
1.4 g/ml. The bigger the density the bigger the MgO and SO3 contents
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