Experimental Study on Salting Law of the Ammonia Reacted Mother Liquor in Magnesium-hydroxide Production by Evaporating

The used experimental solution was obtained by evaporating the mother liquor which was obtained by ammonia reacting with the brine.The salting law of the solution was studied by evaporating the solution at normal atmospheric temperature.The results show that NaCl is mainly crystallized before the water was evaporated up to 500 g/L,and the recover rate of NaCl is 57.92% at this stage.When the water is evaporated more than 500 g/L,the mixed salts contained a small amount of K was continuously crystallized with NaCl.