Lanthanide complex oxide polishing and impregnating process and production device thereof

By designing a lanthanide composite oxide grinding and impregnation production device, the grinding and impregnation of lanthanide supported catalysts were carried out simultaneously, solving the problems of low production efficiency and particle size control, improving the uniformity and performance of the catalyst, and realizing automated preparation.

CN122098754APending Publication Date: 2026-05-29HENAN JINYIZE LUBRICATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN JINYIZE LUBRICATION TECHNOLOGY CO LTD
Filing Date
2026-03-06
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the production process of lanthanide supported solid catalysts in the existing technology, the grinding process and the loading process are carried out in separate steps, resulting in low production efficiency. Moreover, the existing grinding equipment cannot effectively control the particle size, which damages the support structure and affects the impregnation uniformity.

Method used

A lanthanide composite oxide grinding and impregnation production device is designed. Through a gradient grinding structure with inner and outer grinding rings and vacuum stirring technology, grinding and impregnation are carried out simultaneously. Particle separation and control are achieved by combining an air classification structure. The process adopts gradient grinding and vacuum secondary stirring impregnation.

Benefits of technology

This method improves the production efficiency of lanthanide composite oxide catalysts, ensures the uniformity of support particles and catalyst performance, solves the problem of excessively fine or coarse grinding in traditional methods, and realizes automated preparation by equal volume impregnation.

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Abstract

The application discloses a lanthanide series composite oxide grinding and impregnation process and a production device thereof, which comprises a shell, a sinking stirring cylinder, an inner grinding ring and an outer grinding ring which are coaxially arranged in the shell, grinding gaps between the inner grinding ring, the outer grinding ring and the inner bottom surface of the shell are sequentially reduced, the upper surfaces of the inner grinding ring and the outer grinding ring are outwardly inclined, a gap between the outer grinding ring and the inner wall of the shell is a first discharging channel, a gap between the outer grinding ring and the inner grinding ring is a second discharging channel, a liquid inlet pipe is arranged at the lower part of the shell and faces the first discharging channel, a feeding pipe and an air inlet pipe are arranged at the upper part of the shell, and gas in the air inlet pipe horizontally blows to the falling material of the feeding pipe. The application synchronously processes the existing grinding and impregnation processes, improves the dispersion effect of the catalyst carrier, shortens the processing time and improves the production efficiency.
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