New Research on Preparation of Boric Acid and Recovery of Magnesium Sulfate from Boron-rich Slag

Since the boron-rich slag is similar with roasted ascharite in the chemical composition,it could replace ascharite bringing boron and magnesium.The research finds that the boric acid and sulfuric acid can promote the crystallization of magnesium sulfate.When the way that the monohydrate magnesium sulfate is recovered by high pressure first and then the boric acid is prepared by low temperature crystallization method,the leaching rate of monohydrate magnesium sulfate can reach 73.66% with the recovery of 71....