Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of preparation of permanent magnetic ferrites, and discloses a method for removing silicon impurities in high-silicon iron red for permanent magnetic ferrites, which comprises the following steps: mixing the high-silicon iron red with sodium hydroxide, and heating to melt the sodium hydroxide for reaction; after the reaction, performing centrifugal separation on the molten alkali liquor and the high-silicon iron red; and cooling, rinsing the solid, and drying. According to the technical scheme, the problem that the high-silicon iron red is difficult to be directly used for manufacturing the high-performance permanent magnetic ferrite in the prior art due to too high silicon content is solved, the silicon impurity removal method of the high-silicon iron red can effectively remove impurities such as silicon dioxide and silicon carbide, and the preparation of the high-performance permanent magnetic ferrite is met; the performance of the prepared permanent magnetic ferrite is similar to that of the iron red with low silicon content, the iron red raw material source for preparing the permanent magnetic ferrite is greatly expanded, and the iron red raw material cost is reduced.
本发明涉及永磁铁氧体制备技术领域，公开一种永磁铁氧体用高硅铁红中硅杂质的去除方法，包括高硅铁红与氢氧化钠混合，加热使氢氧化钠熔融发生反应；反应后将熔融的碱液和高硅铁红离心分离；降温并漂洗固体、干燥。本发明的技术方案解决了高硅铁红因硅含量太高而难以直接用于现有工艺制作高性能的永磁铁氧体的问题，所提供的高硅铁红的硅杂质去除方法能有效去除所含的二氧化硅、碳化硅等杂质，满足高性能永磁铁氧体的制备，所制备的永磁铁氧体的性能与使用低硅含量铁红的制备性能相近，极大的拓展了制备永磁铁氧体的铁红原料来源，降低了铁红原料成本。
The invention relates to the technical field of preparation of permanent magnetic ferrites, and discloses a method for removing silicon impurities in high-silicon iron red for permanent magnetic ferrites, which comprises the following steps: mixing the high-silicon iron red with sodium hydroxide, and heating to melt the sodium hydroxide for reaction; after the reaction, performing centrifugal separation on the molten alkali liquor and the high-silicon iron red; and cooling, rinsing the solid, and drying. According to the technical scheme, the problem that the high-silicon iron red is difficult to be directly used for manufacturing the high-performance permanent magnetic ferrite in the prior art due to too high silicon content is solved, the silicon impurity removal method of the high-silicon iron red can effectively remove impurities such as silicon dioxide and silicon carbide, and the preparation of the high-performance permanent magnetic ferrite is met; the performance of the prepared permanent magnetic ferrite is similar to that of the iron red with low silicon content, the iron red raw material source for preparing the permanent magnetic ferrite is greatly expanded, and the iron red raw material cost is reduced.
本发明涉及永磁铁氧体制备技术领域，公开一种永磁铁氧体用高硅铁红中硅杂质的去除方法，包括高硅铁红与氢氧化钠混合，加热使氢氧化钠熔融发生反应；反应后将熔融的碱液和高硅铁红离心分离；降温并漂洗固体、干燥。本发明的技术方案解决了高硅铁红因硅含量太高而难以直接用于现有工艺制作高性能的永磁铁氧体的问题，所提供的高硅铁红的硅杂质去除方法能有效去除所含的二氧化硅、碳化硅等杂质，满足高性能永磁铁氧体的制备，所制备的永磁铁氧体的性能与使用低硅含量铁红的制备性能相近，极大的拓展了制备永磁铁氧体的铁红原料来源，降低了铁红原料成本。
Method for removing silicon impurities in high-silicon iron red for permanent magnetic ferrite and method for preparing permanent magnetic ferrite by using high-silicon iron red
一种永磁铁氧体用高硅铁红中硅杂质的去除方法及使用高硅铁红制备永磁铁氧体的方法
08.03.2024
Patent
Elektronische Ressource
Chinesisch
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