PROCESS FOR PRODUCING IRON(II) SULPHATE MONOHYDRATE FROM IRON(III) SULPHATE HEPTAHYDRATE

摘要

FeS04.7H20 is stir-dried with small amt. of ethyl alcohol (3.5%) at max. 40 deg.C. in a closed circuit equipment. Formed water-alcohol azeotrope is removed while the dry monohydrate prod. is let out through the opening in the bottom of the drying vessel.