Correlation between MER of phosphate concentrate and total nutrients of ammonium phosphate

The entering of impurities in phosphate concentrate into wetprocess phosphoric acid is discussed. Based on the parameters of Huangmailing phosphate rock and the process in this enterprise, a relationship between MER of phosphate concentrate and the total nutrients of ammonium phosphate and another relationship between the density of phosphoric acid and the total nutrients of ammonium phosphate, are obtained, which are helpful to the predictions of phosphoric acid and ammoninm phosphate processes, product quality control.