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Preparation method of iron source for manganese zinc ferrite
The invention provides a preparation method of an iron source for manganese zinc ferrite, and the method comprises the steps: performing impurity removing on the titanium dioxide byproduct ferrous sulfate to obtain a pure ferrous sulfate solution, adding a certain amount of a defoaming agent such as an alcohol defoaming agent or a polyether defoaming agent into a system containing the pure ferrous sulfate solution, and adding an ammonium bicarbonate solution or particles; reacting for a certain time, filtering and washing a reactant to obtain a ferrous carbonate precursor and filtrate, carrying out flash evaporation on the filtrate to obtain agricultural ammonium sulfate powder, and drying the ferrous carbonate precursor in an air atmosphere for a certain time to obtain the iron source for the manganese-zinc ferrite, wherein the main component of the iron source for the manganese-zinc ferrite is ferric hydroxide; due to the use of the silicon-phosphorus-free defoaming agent, the crystallization hidden danger in the subsequent process of preparing the manganese-zinc ferrite from the iron source for the manganese-zinc ferrite can be avoided; the defoaming agent can greatly improve the production efficiency, and the precursor with larger specific surface area can be obtained due to higher reaction speed, so that the performance of the manganese zinc ferrite is improved.
本申请提供的锰锌铁氧体用铁源的制备方法中将钛白粉副产物硫酸亚铁除杂得到纯净硫酸亚铁溶液，向包含纯净硫酸亚铁溶液的体系内加入一定量消泡剂如醇类消泡剂或聚醚类消泡剂，然后加入碳酸氢铵溶液或颗粒，反应一定时间后将反应物滤洗，得到碳酸亚铁前驱体和滤液，其中滤液可以通过闪蒸得到农用级硫酸铵粉末，将碳酸亚铁前驱体在空气气氛中进行烘干，烘干一定时间即可得到锰锌铁氧体用铁源，其中锰锌铁氧体用铁源的主要成分为氢氧化铁由于使用无硅磷消泡剂可以避免后续通过锰锌铁氧体用铁源制备锰锌铁氧体的过程中的结晶隐患；且消泡剂可以大幅提高生产效率，由于反应速度较快可以得到比表面积较大的前驱体，从而提高锰锌铁氧体性能。
Preparation method of iron source for manganese zinc ferrite
The invention provides a preparation method of an iron source for manganese zinc ferrite, and the method comprises the steps: performing impurity removing on the titanium dioxide byproduct ferrous sulfate to obtain a pure ferrous sulfate solution, adding a certain amount of a defoaming agent such as an alcohol defoaming agent or a polyether defoaming agent into a system containing the pure ferrous sulfate solution, and adding an ammonium bicarbonate solution or particles; reacting for a certain time, filtering and washing a reactant to obtain a ferrous carbonate precursor and filtrate, carrying out flash evaporation on the filtrate to obtain agricultural ammonium sulfate powder, and drying the ferrous carbonate precursor in an air atmosphere for a certain time to obtain the iron source for the manganese-zinc ferrite, wherein the main component of the iron source for the manganese-zinc ferrite is ferric hydroxide; due to the use of the silicon-phosphorus-free defoaming agent, the crystallization hidden danger in the subsequent process of preparing the manganese-zinc ferrite from the iron source for the manganese-zinc ferrite can be avoided; the defoaming agent can greatly improve the production efficiency, and the precursor with larger specific surface area can be obtained due to higher reaction speed, so that the performance of the manganese zinc ferrite is improved.
本申请提供的锰锌铁氧体用铁源的制备方法中将钛白粉副产物硫酸亚铁除杂得到纯净硫酸亚铁溶液，向包含纯净硫酸亚铁溶液的体系内加入一定量消泡剂如醇类消泡剂或聚醚类消泡剂，然后加入碳酸氢铵溶液或颗粒，反应一定时间后将反应物滤洗，得到碳酸亚铁前驱体和滤液，其中滤液可以通过闪蒸得到农用级硫酸铵粉末，将碳酸亚铁前驱体在空气气氛中进行烘干，烘干一定时间即可得到锰锌铁氧体用铁源，其中锰锌铁氧体用铁源的主要成分为氢氧化铁由于使用无硅磷消泡剂可以避免后续通过锰锌铁氧体用铁源制备锰锌铁氧体的过程中的结晶隐患；且消泡剂可以大幅提高生产效率，由于反应速度较快可以得到比表面积较大的前驱体，从而提高锰锌铁氧体性能。
Preparation method of iron source for manganese zinc ferrite
锰锌铁氧体用铁源的制备方法
LIU TAO (author) / SONG XINGLIAN (author) / HAN WEIDONG (author) / XIE LILI (author) / CHENG LONG (author) / LIAO WENJU (author) / ZHU KONGLEI (author)
2021-11-02
Patent
Electronic Resource
Chinese
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