Przemysl Chemiczny, Vol.95, No.5, 1000-1002, 2016
Process for production of a urea superphosphate fertilizer under continuous feeding of raw materials
An industrial process for prodn. of urea-superphosphate fertilizer was improved to be carried out in a continuous manner. Urea and raw phosphate are pulped in concd. H2SO4. The resulting sludge is granulated, dried, classified, cooled and stored.