A method of underground brine prepared directly Soda

A direct preparation of soda using underground brine method, using ammonia reaction Brine most magnesium ions are removed, and then a second purification via an intermediate material for producing a middle process soda ash after calcium and magnesium ions are removed, purified brine as alkali raw material , ammonia reaction to remove magnesium ion process to produce magnesium hydroxide precipitate was separated and dried as magnesium hydroxide product to sell. The present invention is the through utilization of resources, may be saturated brine purification was used directly in soda ash production, the brine production of salt increased more than 15%, salt production increased by more than about 50%, while also effectively utilizing the brine of calcium and magnesium ions and other ingredients, give full play to the advantages of circular economy.