A reactor for the preparation of iron oxide by a precipitation process

By layering iron filings and using a rotary stirring and spraying assembly for top-to-bottom extrusion stirring, the problems of low reaction efficiency and unstable quality caused by iron filings precipitation were solved, achieving more efficient iron oxide preparation.

CN117339524BActive Publication Date: 2026-08-11GUANGXI UBRIDGE NEW MATERIAL TECH CO LTD +1
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Patent Information

Application Number
CN202311281155.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-07
Publication Date
2026-08-11
Estimated Expiration
2043-10-07

AI Technical Summary

Technical Problem

In existing technologies, iron filings tend to settle to the bottom of the reactor, resulting in low efficiency of the secondary oxidation reaction and unstable reaction quality. Traditional reactors are not conducive to the full dispersion and mixing of iron filings.

Method used

By using a layered method of dispensing iron filings, and through the cooperation of a rotating stirring component and a spraying component, the iron filings are sprayed upwards and fully contacted with the solution using an upward squeezing and stirring method, thereby improving reaction efficiency and quality.

Benefits of technology

This effectively prevents iron filings from accumulating at the bottom of the reaction vessel, improves the efficiency and quality of the secondary oxidation reaction, and enhances the reaction rate and mixing effect.

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Abstract

This invention relates to the field of iron oxide preparation technology, and discloses a reactor for preparing iron oxide by precipitation. The reactor includes a hollow main body, a storage component fixed inside the main body, a spraying component sequentially fixed along the length of the storage component, an adjusting component located on top of the storage component and fixed to the main body, and a rotating stirring component located at the bottom of the adjusting component and connected to the storage component and the spraying component. This invention effectively avoids the accumulation of large amounts of iron filings at the bottom of the reaction vessel, preventing slow reaction rates and incomplete reactions. It uses pressurized gas to spray the precipitated iron filings upwards, ensuring thorough contact and mixing with the solution, thus improving the efficiency and quality of secondary oxidation of the iron filings. The mixture of solution and iron filings is achieved through vertical compression, vibration, and stirring, increasing the mixing contact time and ensuring sufficient contact between the oxidizing gas and the solution, thereby improving the reaction environment and enhancing the reaction rate and quality.
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