Preparation Method for Composite Ferrate Reagent

摘要

A preparation method for a composite ferrate reagent. 1, Weigh raw materials; 2, evenly mix a ferric salt, an activating agent and an alkali maintaining agent and heat the mixture; 3, add an oxidant solution; and 4, cool and mix the solution with water. The technical problems of high energy consumption, low yield and poor ferrate product stability of the existing method for preparing ferrate are solved. The obtained product can be stably stored, and the yield of the ferrate reaches 60% to 95%.

主权项

1. A preparation method for ferrate composite agent, characterized in that, the preparation method for ferrate composite agent comprises the steps of:
(1) weighing and obtaining iron salt, activate agent, alkalinizing agent and oxidizing agent solution, wherein a molar ratio of iron salt and activate agent is 1:0.001˜10, a molar ratio of iron salt and alkalinizing agent is 1:2˜20, a molar ratio of iron salt and oxidizing agent in the oxidizing agent solution is 1:0.1˜10; (2) mixing said iron salt, said activate agent and said alkalinizing agent obtained from the step (1) uniformly, heating to a heating temperature of 30° C.-398° C. and maintaining for a heating period of 1 min˜60 min, and obtaining a mixture; (3) adding said oxidizing agent solution from the step (1) to said mixture in the step (2), wherein an adding time is controlled below 10 minutes, then obtaining a precursor; and (4) cooling said precursor obtained from the step (3) naturally, then mixing said precursor with water according to a volume ratio of said precursor and said water of 1:1˜5, stirring uniformly and obtaining the ferrate composite agent.