Process and system for preparing ferric phosphate by mixing and stirring in reactor with external circulation

Abstract

The present disclosure relates to the technical field of ferric phosphate, in particular to a process and a system for preparing ferric phosphate by mixing and stirring in a reactor with external circulation. Disclosed is a process for preparing ferric phosphate by mixing and stirring in a reactor with external circulation, comprising the following steps: adding a ferric salt solution, a monoammonium phosphate solution, and a protective agent into the reactor, and subjecting the resulting mixed liquid to a preliminary reaction at 90-100° C.; after the completion of the preliminary reaction, carrying out an external circulation reaction at 85-90° C. The process described in the present disclosure has a high reaction speed, and the obtained ferric phosphate has a high yield and low content of impurity in the ferric phosphate.

Dependencies are inferred from the claim text.