فعال شدن بنتونیت خاکستر سودا
Ammoniated brine solution is made to trickle down from the top of the tower while CO 2 gas from the lime kiln is admitted from the base of the tower. CO 2 rises through the small perforations and its interaction with ammoniated brine results in the formation of insoluble sodium hydrogen carbonate.. NH 3 + H 2 O + CO 2 → NH 4 HCO 3.