Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing
Patent
1983-03-14
1985-06-04
Heller, Gregory A.
Chemistry of inorganic compounds
Phosphorus or compound thereof
Oxygen containing
423319, 423320, 423321R, C01B 2516
Patent
active
045213925
ABSTRACT:
Phosphoric acids of significantly different content of soluble impurities, especially magnesium compounds, can be blended to produce a phosphoric acid with a decreased tendency for forming detrimental solids when converted to a liquid fertilizer or on storage, or during transportation as when the acid is transported by ocean vessel or rail road tank car. The blending can be effected either before or after a concentration step or steps (e.g., evaporation to "merchant grade" or to superphosphoric acid). For example, wet process phosphoric acid produced by a dihydrate or gypsum process can be blended with a phosphoric acid produced by a hemihydrate process.
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Slack, Phosphoric Acid, vol. II, pp. 639, 642-645, 650, 651, (1968).
Mills Harold E.
Murdock David L.
Ramer Richard M.
Sale Francis M.
Heller Gregory A.
Logan Forrest E.
Occidental Chemical Agricultural Products, Inc.
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