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Method for preparing zinc ferrite from neodymium iron boron waste
The invention provides a method for preparing zinc ferrite from neodymium iron boron waste, and relates to the technical field of neodymium iron boron waste recovery. A method for preparing zinc ferrite from neodymium iron boron waste comprises the following steps: S1, mixing the neodymium iron boron waste and zinc sulfate, and roasting to obtain a roasted product; s2, the roasted product is ground, soaked in water and filtered, and a neodymium sulfate solution and a zinc ferrite precursor are obtained; and S3, carrying out compression molding on the zinc ferrite precursor, and roasting to obtain the zinc ferrite. According to the method for preparing the zinc ferrite from the neodymium-iron-boron waste, rare earth elements in the neodymium-iron-boron waste can be separated from iron through selective sulfating roasting, so that a zinc ferrite substance is obtained, the yield of the zinc ferrite is high, acidic wastewater and waste residues are not generated in the recovery process, and environmental protection is facilitated; meanwhile, the obtained zinc ferrite does not contain acid, can be used for magnetic materials, and is high in utilization value.
本发明提供一种钕铁硼废料制备锌铁氧体的方法，涉及钕铁硼废料回收技术领域。一种钕铁硼废料制备锌铁氧体的方法，包括以下步骤：S1、将钕铁硼废料和硫酸锌混合，焙烧，得到焙烧产物；S2、将焙烧产物研磨，水浸，过滤，得到硫酸钕溶液和锌铁氧体前驱体；S3、将锌铁氧体前驱体压制成型，焙烧，得到锌铁氧体。本发明的钕铁硼废料制备锌铁氧体的方法，通过选择性硫酸化焙烧可以让钕铁硼废料中的稀土元素与铁分离，从而获得锌铁氧体物质，让锌铁氧体的产率高，并且回收过程中不会产生酸性废水和废渣，有利于环境保护，同时得到的锌铁氧体不含酸，可用于磁性材料，利用价值高。
Method for preparing zinc ferrite from neodymium iron boron waste
The invention provides a method for preparing zinc ferrite from neodymium iron boron waste, and relates to the technical field of neodymium iron boron waste recovery. A method for preparing zinc ferrite from neodymium iron boron waste comprises the following steps: S1, mixing the neodymium iron boron waste and zinc sulfate, and roasting to obtain a roasted product; s2, the roasted product is ground, soaked in water and filtered, and a neodymium sulfate solution and a zinc ferrite precursor are obtained; and S3, carrying out compression molding on the zinc ferrite precursor, and roasting to obtain the zinc ferrite. According to the method for preparing the zinc ferrite from the neodymium-iron-boron waste, rare earth elements in the neodymium-iron-boron waste can be separated from iron through selective sulfating roasting, so that a zinc ferrite substance is obtained, the yield of the zinc ferrite is high, acidic wastewater and waste residues are not generated in the recovery process, and environmental protection is facilitated; meanwhile, the obtained zinc ferrite does not contain acid, can be used for magnetic materials, and is high in utilization value.
本发明提供一种钕铁硼废料制备锌铁氧体的方法，涉及钕铁硼废料回收技术领域。一种钕铁硼废料制备锌铁氧体的方法，包括以下步骤：S1、将钕铁硼废料和硫酸锌混合，焙烧，得到焙烧产物；S2、将焙烧产物研磨，水浸，过滤，得到硫酸钕溶液和锌铁氧体前驱体；S3、将锌铁氧体前驱体压制成型，焙烧，得到锌铁氧体。本发明的钕铁硼废料制备锌铁氧体的方法，通过选择性硫酸化焙烧可以让钕铁硼废料中的稀土元素与铁分离，从而获得锌铁氧体物质，让锌铁氧体的产率高，并且回收过程中不会产生酸性废水和废渣，有利于环境保护，同时得到的锌铁氧体不含酸，可用于磁性材料，利用价值高。
Method for preparing zinc ferrite from neodymium iron boron waste
一种钕铁硼废料制备锌铁氧体的方法
PENG RUZHEN (author) / LEI XIANG (author) / ZHOU YUNLI (author) / LIU DONG (author)
2022-11-08
Patent
Electronic Resource
Chinese
IPC:
C22B
PRODUCTION OR REFINING OF METALS
,
Gewinnen oder Feinen von Metallen
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
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