PROCESSO PARA A PREPARACAO DE UM ADUBO DE FOSFATO CALCINADO,SOLUVEL EM CITRATO

PROCESSO PARA A PREPARACAO DE UM ADUBO DE FOSFATO CALCINADO,SOLUVEL EM CITRATO

A process for the production of highly citrate-soluble calcined phosphate fertilizers is disclosed. The process comprises calcinating a mixture which comprises appropriate amounts of calcium phosphates, silicic acid and an alkaline decomposing agent whereby the naturally occurring mineral trona is u...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAUSCHILD U, ROETGER H
Format: Patent
Sprache:por
Schlagworte:
CHEMISTRY
FERTILISERS
MANUFACTURE THEREOF
METALLURGY
PHOSPHATIC FERTILISERS
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Beschreibung
Zusammenfassung:A process for the production of highly citrate-soluble calcined phosphate fertilizers is disclosed. The process comprises calcinating a mixture which comprises appropriate amounts of calcium phosphates, silicic acid and an alkaline decomposing agent whereby the naturally occurring mineral trona is used as an alkaline decomposing agent. The process is effected in a rotary kiln; the maximum temperature is about 1300 DEG C.