Liquid metal extraction of Nd from NdFeB magnet scrap
نویسندگان
چکیده
منابع مشابه
In situ TEM study of Nd-rich phase in NdFeB magnet
Hot stage in transmission electron microscope has been used to study the structure and stability of Nd-rich phase in NdFeB magnet. The present observation shows that the so-called complex cubic phase is in fact the prototype of Mn2O3 (space group Ia 3) with lattice parameter of a 1⁄4 1:08nm: The Nd-rich phase with P 3m1 structure (h-Nd2O3) was first observed to be transformed from the BCC phase...
متن کاملThe Effect of Grinding and Roasting Conditions on the Selective Leaching of Nd and Dy from NdFeB Magnet Scraps
The pretreatment processes consisting of grinding followed by roasting were investigated to improve the selective leaching of Nd and Dy from neodymium-iron-boron (NdFeB) magnet scraps. The peaks of Nd(OH)3 and Fe were observed in XRD results after grinding with NaOH as the amount of water addition increased to 5 cm. These results indicate that the components of Nd and Fe in NdFeB magnet could b...
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Recovery of metabolites from fermentation broth by solvent extraction can be used to optimize fermentation processes. End-product reutilization, low product concentration, large volumes of fermentation broth and the requirements for large bioreactors, in addition to the high cost largely contributed to the decline in fermentative 2, 3-butanediol production. Extraction can ...
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Sintered NdFeB magnets are relatively complex multiphase systems containing Nd2Fe14B matrix and about 15% of other intermetallics such as Nd1+εFe4BB4, Nd-oxides (Nd-rich phase), etc. Boron rich Nd1+εFe4B4 B forms in irregularly distributed heavily faulted grains of roughly the same size as those of the Nd2Fe14B phase [1]. The Curie temperature of this phase is 13K and, therefore, it is not ferr...
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The indium tin oxide scrap (ITOS) was mechanically activated by a stirring ball mill and subsequently studied for the leaching behavior and kinetics of extracting indium from ITOS in hydrochloric acid solution. The X-ray diffraction (XRD) analysis showed that MA caused the decrease in crystalline phase and increase in lattice distortion. The effects of reaction temperature and hydrochloric acid...
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ژورنال
عنوان ژورنال: Journal of Materials Research
سال: 2000
ISSN: 0884-2914,2044-5326
DOI: 10.1557/jmr.2000.0330