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Harbin Institute of Technology

Xiaodan Zhao

Jun Ma

Yulei Liu

Lu Wang

Qingliang Liu

Jiayue Xiao

A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.

Method for efficiently preparing ferrate based on nascent interfacial activity

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%.

Preparation method for composite ferrate reagent

A method of synthesizing ferrate, which includes the steps of: (a) weighing and obtaining iron salts, activating agents, alkalinizing agents and oxidizing agents solution; (b) mixing uniformly the iron salts, the activating agents and the alkalinizing agents, heating to 30&#x2dc;398&#xb0; C. and maintaining for 1 min&#x2dc;60 min to obtain a mixture; (c) adding the oxidizing agents solution to the mixture with an adding time of less than 10 minutes, then obtaining a precursor; and (d) natural cooling the precursor, then mixing the precursor with water and stirring evenly to obtain a final product of ferrate, wherein a volume ratio of the precursor and the water is 1:1&#x2dc;5. The method involves low power consumption, low temperature, low explosion risk, non-complicated steps and procedures, short synthetic time and high ferrate conversion efficiency. The method produces ferrate of high yield and good stability, and is suitable for producing ferrate composite pharmaceuticals in industrialized mass production.

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Harbin, China

Xiaodan Zhao