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; (10) 图6 盐酸优溶法回收NdFeB废料中稀土流程图 Fig.6 The process of recovering rare earth from NdFeB waste by hydrochloric acid excellent solution... Fig. 8 Process of sulfuric acid double salt precipitation method for NdFeB waste recovery 唐杰等对比了草酸沉淀法和硫酸复盐法回收NdFeB废料中稀土的效果,研究表明,草酸沉淀法不仅对稀土难以沉淀完全,并且非稀土杂质含量较高,而硫酸复盐法得到的Nd2O3纯度较高,且对Nd的回收率超过82%[64]. 硫酸复盐......
High-efficiency simultaneous extraction of rare earth elements and iron from NdFeB waste by oxalic acid leachingQingsheng Liu1,Tao Tu1,2,Hao Guo3,Huajin Cheng1,Xuezhong Wang11. Faculty of Materials...:Iron can not be recovered at high value because only rare earth elements are effectively recovered from NdFeB waste via oxidation roasting-hydrochloric acid......
Trans. Nonferrous Met. Soc. China 25(2015) 832-837 Electroplating mechanism of nanocrystalline NdFeB film Zhong-nian YANG1,2, Cui WANG2, Yan ZHANG1, Yan XIE1 1. Department of Chemical Engineering... January 2015 Abstract: Nanocrystalline NdFeB film was fabricated onto the copper substrate through direct current electroplating method, and characterized by scanning electron microscope (SEM) coupled......
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文章编号: 1004-0609(2006)03-0459-05 放电等离子烧结制备高性能NdFeB永磁材料 王公平, 岳 明, 张久兴, 刘卫强 (北京工业大学 材料科学与工程学院 新型功能材料教育部重点实验室, 北京 100022) 摘 要: 采用放电等离子烧结技术制备高性能新型NdFeB永磁材料, 研究烧结工艺和热处理工艺对磁体组织性能的影响. 采用扫描电子显微镜观察磁体的微观组织, 利用B-H回线仪检测磁体的磁性能. 结果表明: 较高的烧结温度有利于磁体的致密化, 但过高的温度则阻碍液相在主相晶界的浸润, 从而降低磁体的致密度. 在优化工艺条件下制备出具有独特的微观组织且最佳性能为Br=1.351T, Hci=674.4kA/m, BHm=360.4kJ/m3的新型SPS NdFeB磁体. 关键词: 放电等离子烧结; NdFeB永磁材料; 富钕相......
Removing cadmium from electroplating wastewater by waste saccharomyces cerevisiae DAI Shu-juan(代淑娟)1, 2, WEI De-zhou(魏德洲)1, ZHOU Dong-qin(周东琴)1, JIA Chun-yun(贾春云)1, WANG Yu-juan(王玉娟)1, LIU... method using waste saccharomyces cerevisiae(WSC) as sorbent. Effect factors on biosorption of cadmium in cadmium-containing electroplating wastewater by waste saccharomyces cerevisiae......
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Disposal of cuprous chloride waste water XUE Juan-qin(薛娟琴), MAO Wei-bo(毛维博), WANG Yu-jie(王玉洁), LI Jing-xian(李京仙), WU Ming(吴 明), LU Xi(卢 曦) School of Metallurgical Engineering, Xi... ____________________________________________________________________________________________ Abstract: The waste water system generated in the process of production of cuprous chloride was studied. The existing forms of copper in the system and the influence of temperature and pH......
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