Przemysl Chemiczny, Vol.90, No.5, 845-852, 2011
Low-tonnage technology for the production of food-grade phosphates
A technolog. process for versatile prodn. of NaH(2)PO(4), Na(2)HPO(4), Ca(H(2)PO(4))(2) and CaHPO(4) by reaction of H(3)PO(4) with Na(2)CO(3) or CaCO(3) in aq. dispersion was developed. Material balances and economic calcn. for a small prodn. plant (capacity 500 t/yr) were performed.