The magnesium sulfate monohydrate mother liquor is a saturated solution remaining after the reaction. The mother liquor is a saturated solution remaining after precipitation or crystals are separated during chemical precipitation or crystallization. After the chemical work is completed, the problem of mother liquor should be dealt with. So what is the correct way to deal with it? Let's introduce it to everyone.
The technical scheme adopted for the production of ammonium sulfate mother liquor after the production of boric acid by the sulfuric acid method is as follows: the magnesium sulfate monohydrate mother liquor after the boric acid production by the sulfuric acid method is processed by the following process: first, the mother liquor is heated to 95-100 ° C, and an appropriate amount of solid is added to the mother liquor The weight ratio of ammonium sulfate, ammonium sulfate, and magnesium sulfate monohydrate is 1: 1 to 1.4: 1. It is dissolved and reacted to produce magnesium ammonium sulfate. The resulting solution is filtered, cooled, and crystallized to precipitate ammonium magnesium sulfate, and then dried. deal with.
This method can concentrate more than 80% of magnesium sulfate monohydrate in the mother liquor without concentrating the mother liquor, which speeds up the production speed, saves coal and electricity, and reduces costs; compared with the traditional concentration method, the amount of mother liquor processed is reduced. It can save half of the equipment and save the equipment. At the same time, it greatly reduces the loss caused by the volatilization of boron with steam and the environmental pollution when the mother liquor is concentrated. Using this method, a large number of low-grade boron ore can be fully utilized. Ammonium magnesium is also an agriculturally good nitrogen, magnesium, and sulfur fertilizer.