PROCESS AND SYSTEM FOR PREPARING IRON PHOSPHATE BY USING OUT-OF-KETTLE CIRCULATING MIXING AND STIRRING

A process and system for preparing iron phosphate by using out-of-kettle circulating mixing and stirring. The process comprises the following steps: adding an iron salt solution, a monoammonium phosphate solution and a protective agent to a reaction kettle, and subjecting the obtained mixed solution...

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Hauptverfasser: HUANG, Deming, HAO, Deli, FANG, Jin, LIU, Faan, HUA, Jianqing, ZHAO, Guojun
Format: Patent
Sprache:chi ; eng ; fre
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Zusammenfassung:A process and system for preparing iron phosphate by using out-of-kettle circulating mixing and stirring. The process comprises the following steps: adding an iron salt solution, a monoammonium phosphate solution and a protective agent to a reaction kettle, and subjecting the obtained mixed solution to an early-stage reaction at 90-100ºC; and after the early-stage reaction is finished, conducting an out-of-kettle circular reaction at 85-90ºC. The system comprises a controller used for executing the process for preparing iron phosphate by using out-of-kettle circulating mixing and stirring. L'invention concerne un procédé et un système de préparation de phosphate de fer au moyen d'un mélange et d'une agitation par circulation hors-cuve. Le procédé comprend les étapes suivantes : ajout d'une solution de sel de fer, d'une solution de phosphate de monoammonium et d'un agent protecteur à une cuve de réaction, et soumission de la solution mixte obtenue à une réaction d'étape précoce à 90-100°C ; et après la fin de