The first-class reciprocal quaternary system H3PO4-K2SO4-K3PO4-H2SO4-H2O application to fertilizer fabrication problems |
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Authors: | N Bourguiba T Jouini |
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Affiliation: | 1. Département de Chimie, Faculté des Sciences de Tunis, Campus Universitaire, 1060, Tunis, Tunisia
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Abstract: | The first-class reciprocal quaternary system H3PO4-K2SO4-K3PO4-H2SO4-H2O has been carefully investigated at 25 and 75°C. Representations have been given using the Jänecke coordinates. Using the established diagrams as a base, a procedure is proposed for preparing specific fertilizers containing potassium and phosphate ions by reacting phosphate rock with aqueous solutions of KHSO4, addition of calculated amounts of water to the reaction mixture, elimination of an insoluble products, and programmed water evaporation. |
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