conversion of ammonium sulfate and phosphogypsum lime

摘要

we became interested in developing a method for the production of calcium carbonate, which is transformed to pure lime and ammonium sulphate (21% of nitrogen, and 74% of sulphate from phosphogypsum, which is considered a more toxic waste, causing environmental problems the.this method is based on techniques used in the conversion of phosphogypsum in the products according to the schematic reaction caso4 + (nh4) co3, so4 = caco3 + (nh4) 2, caco3 and cao (sd) (sd) + co2 (g)