Magnesium Sulfate Grade Magnesium Oxide

The production process of magnesium sulfate heptahydrate is mainly through the reaction of magnesium oxide and sulfuric acid, and then through pressure filtration, cooling and crystallization after drying.

A method for producing magnesium sulfate from magnesium oxide desulfurization waste liquid, wherein: the method includes the following steps: oxidation step, neutralization step, impurity removal step, evaporation concentration and solid-liquid separation step, dry packaging step. Magnesium sulfate monohydrate and magnesium sulfate heptahydrate can be produced according to different evaporation temperature and discharge conditions and different equipment. This method not only solves the by-product liquid waste discharged into the sea, and can extract liquid of magnesium sulfate resources, made into magnesium sulfate products, processes and evaporation is small, low energy consumption, high recovery rate, so it is of significant social benefit and economic benefit, for meeting the targets when preparing magnesium sulfate monohydrate magnesium oxide content is greater than 27%, sulfur content is more than 20%, Agricultural grade.

When preparing magnesium sulfate heptahydrate, the purity of magnesium sulfate heptahydrate can be more than 97% at one time, with energy consumption and quality indexes.