Przemysl Chemiczny, Vol.88, No.4, 380-384, 2009
Study on the neutralization of phosphoric acid in the technology for production of feed phosphates
Aq. solns. of H(3)PO(4) were neutralized with CaO optionally in presence of CaCO(3) to produce feed phosphates (yield 78-86%). The products were analyzed for total P, Ca and F, for hydrochloric acid and water-sol. P as well as for H(2)O contents. They met the std. requirements for the feed phosphates (Ca/P ratio below 2, P(2)O(5)/F ratio above 350, available P/total P ratio 0.95).