METHOD FOR CARBONIZATION OF AMMONIATED BRINE IN THMETHOD FOR CARBONIZATION OF AMMONIATED BRINE IN THE PRODUCTION OF SODA ASH WITH AMMONIUM PROCESS E PRODUCTION OF SODA ASH WITH AMMONIUM PROCESS

摘要

The invention relates to methods for carbonization of ammoniated brine in the production of soda ash with ammonium process and can be used in the chemical industry. The method involves supply of ammoniated brine and carbon dioxide gas to the carbon column and interaction thereof in the reverse flow, recirculation of a part of ammoniated brine, moreover ammoniated brine is supplied into the column for interaction, and recirculation is performed by withdrawal of a part of ammoniated brine from the zone of interaction taking it of the upper part of column and returning inside the column where it is mixed with ammoniated brine being supplied. Te invention gives an opportunity to raise the degree of sodium utilization and obtain crystals of sodium bicarbonate of a high quality.