Project Details Scientific researching of de ammonium phosphate production process according to the consumed phosphoric acid specifications Scientific researching of de ammonium phosphate production process according to the consumed phosphoric acid specifications Status: Completed Registration Date 2008/11/04 Update Date 2008/11/04 Goals Improving the operational conditions of DAP fertilizer production units Schedule Commencement Date : 11/15/1998 Duration : 12Months Executive Actions 1-Analyzing the present mixtures in acid and their affection on process. 2-The studies in laboratory measure. 3-Computerized simulating and modeling process. 4-Performing sample test on unit. 5-Preparing the final report. Basic Contractor science and technology university-dr. azre nejad Description Contract Code 77/097 According to the variety of consumed phosphoric acid and their different grosses, in this researching project many spread tests has been made in order to investigate the existing grosses in phosphoric acid and their role in DAP granulation quality. The results showed that grosses density of aluminum oxide and ferrous oxide has intensive effect on granulation quality of production. So, in order to achieve the best DAP granulation quality, it is necessary that total density of ferrous oxide and existing aluminum oxide in the importing phosphoric acid to the unit to be at least %2 of the weight.