Chemical reactions in the phosphorite-sulfuric acid-urea-water system in relation to process safety and product quality. Part 3. System CO(NH2)(2)-H3PO4-Ca(H2PO4)(2)-CaHPO4-H2O

Schab S; Biskupski A; Gorecki H; Borowik M; Rusek P; Malinowski P

Przemysl Chemiczny, Vol.95, No.9, 1729-1736, 2016

DOI10.15199/62.2016.9.14 Export Citation

Chemical reactions in the phosphorite-sulfuric acid-urea-water system in relation to process safety and product quality. Part 3. System CO(NH2)(2)-H3PO4-Ca(H2PO4)(2)-CaHPO4-H2O

Schab S, Biskupski A, Gorecki H, Borowik M, Rusek P, Malinowski P

The title system used for manufg. urea superphosphate fertilizer was studied for reaction of urea with H3PO4, Ca(H2PO4)(2) and CaHPO4. The reactions resulted in losses of nutrients. The reactions of urea with H3PO4 and CaHPO4 created an explosion hazard.