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NdFeB magnetic materials from industrial wastes in the manufacture of refined metal neodymium


Process conditions to the operator must have full understanding. Melt temperature control, adjusting the electrode current density,[link widoczny dla zalogowanych], the speed of adjustment of Araliaceae, electrolyte composition changes. Effect of electrolysis are all important impact. Only thorough understanding of the process conditions, the operation of the electrolytic phenomenon has accurate judgments, in order to ensure relative stability in the electrolysis process conditions, raw material consumption, metal quality,[link widoczny dla zalogowanych], metal, etc. will yield better results . Metal carbon content control, from the operating point of view,[link widoczny dla zalogowanych], is to maintain the electrolytic process parameters in a stable run,[link widoczny dla zalogowanych], the only good anode and cathode electrochemical reaction, the carbon to melt into a gas release in the best condition, the metal carbon impurities will be low. The reaction of the melt changes the phenomenon is well good. Bottom sediment less than clean, smooth metal with high yields. 4 Conclusion -52. \ Rare case is combined with hard case '~ total section 140 (1) the recovery of waste from the production of NdFeB rare earth neodymium oxide short process, process stability,[link widoczny dla zalogowanych], production design and reasonable. Is the more economical, advanced production line, mass production of rare earth yield of more than 8O%. <2), neodymium oxide with special ingredients as raw materials, 3000A new quality metal smelting cell neodymium. Nissan in Taiwan, the metal is too 6Okg, current efficiency greater than 75%, 88% total yield of metal. Products by companies use magnetic materials, can produce more performance N35 magnet, considerable benefits. (3) to further reduce production costs, the process can be improved as follows: Preparation of Rare Earth Fluoride can be treated by removing impurities Preparation of rare earth chloride solution; oxalic acid solution after precipitation could be replaced by impurity precipitation with ammonium bicarbonate . Acknowledgements: This article Huqi Yang Cheng Institute of Hunan Rare Earth Metal Material senior guidance. To express my sincere thanks! References: [1] Zhu Jing Zhu. Our research and the latest progress of rare earth permanent magnet (A】 Chinese Rare Earth Society Annual Meeting Proceedings Second Volume 4 (internal data) [c] 1990. 【2] the king to save the military. Fluoride salt electrolysis of rare earth oxides obtained tent Taiwan rare earth metals (A) session of China Nonferrous Metals Society of lettuce Annual Meeting Proceedings of youth [C] Changsha: Central South University Press, 1994. [3] Wang to teach troops. Electrolytic Oxidation wrong system of metal Kai technology research and industrial practice ( J). Rare and Hard Taijin .1997, (3): 18.ExtractionofNdMetalsoutofNdFeBIndustrialScrapsWANGYijun, SHUBin.ZHANGYue. (HunanResearchInstituteofREMetallicMaterials, Changsha410014, China) Abstract: ThepaperpresentstheprocessfortheextractionofNdmeta [soutofNdFeBindus-trialscrapsandalsotheinfluenceoftherelatedtechnica1conditions013.theproductqualityandtechno-economicindex.TheresultantNdmetalsfeaturespecialcompositionandcanbereusedforNdFeBsmeltingwithremarkableeconomicbenefit.Ndoxidewithspecia1compositionOut0ftheNdFeBscrapsisusedforNdmetalsproductioninthe3000Aelectrolyzeratacapacityof60kg/day- cellwithover75% ofcurrentefficeneyandover88% totalmetalrecovery.Theproces ~ sde-scribedisproventobeadvanced, well-establishedandreliableKeywords: NdFeBscraps; extraction; Ndmetals welcome to read ST. site -. \ More articles related to topics：


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