Przemysl Chemiczny, Vol.93, No.6, 924-927, 2014
Production of compound fertilizers on the basis of phosphorus component obtained by partial acidulation of low-grade phosphate rocks
The low-grade Chilisai phosphate rocks were used for prodn. of phosphate fertilizers by dissoL with H2SO4 and H3PO4. As ref. raw material, a high-grade Algerian phosphate rock was used. The quality of products and economy of their prodn. were compared. A prodn. plant was designed.