Catalytic technology for processing calcium hydrogen phosphate as feed

Catalytic technology for processing calcium hydrogen phosphate as feed

The calcium bi-phosphate as feed additive is prepared through such technological steps as decomposition reaction of powdered phosphorus ore, water and sulfuric acid under existance of catalyst to obtain calcium dihydrogen phosphate, calcium sulfate and fluride, adding sulfide for regulating pH value...

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Bibliographische Detailangaben
1. Verfasser: LIN HENGXING
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
FODDER
FOODS OR FOODSTUFFS
HUMAN NECESSITIES
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:The calcium bi-phosphate as feed additive is prepared through such technological steps as decomposition reaction of powdered phosphorus ore, water and sulfuric acid under existance of catalyst to obtain calcium dihydrogen phosphate, calcium sulfate and fluride, adding sulfide for regulating pH value to 1-2.5, filtering, water washing, regulating pH value of filtrate to 2.5-3.2, removing fluorine, filtering to obtain pure solution of calcium dihydrogen phosphate, neutralizing and separation of mother liquid that may be reused.