production of nd-fe foundry alloy by electrolysis in molten salts

Aluminium oxide

Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3.It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.It is commonly called alumina and may also be called aloxide, aloxite, or alundum depending on particular forms or applications.

International Journal of Minerals, Metallurgy and Materials

International Journal of Minerals, Metallurgy and Materials (IJMMM, ISSN 1674-4799, CN 11-5787/TF, monthly, started in 1994, formerly known as Journal of University of Science and Technology Beijing) is an international journal devoted to publishing original

Recovery of Rare Earth Elements from NdFeB Magnet

A novel method to recover rare earth elements (REEs) from NdFeB magnets was developed. This method involves three basic steps, i.e., the vacuum induction melting (VIM) process, the hydrolysis process and the magnetic separation process (HMS). In the VIM process, the NdFeB magnets were melted in a graphite crucible under vacuum (1 Pa), in which way the rare earth carbides formed by

Title Electrolytic Reduction of Solid Al₂O₃ to Liquid Al in Molten

production process of aluminum. Meanwhile, electrolytic reductions of various kinds of solid ox-ides in CaCl 2 and/or CaCl 2-based molten salts have been investi-gated by many researchers in the last two decades.1–17 Fray et al. reported the direct electrolytic 2

Aluminium oxide

Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3.It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.It is commonly called alumina and may also be called aloxide, aloxite, or alundum depending on particular forms or applications.

Recovery of Rare Earth Elements from NdFeB Magnet

A novel method to recover rare earth elements (REEs) from NdFeB magnets was developed. This method involves three basic steps, i.e., the vacuum induction melting (VIM) process, the hydrolysis process and the magnetic separation process (HMS). In the VIM process, the NdFeB magnets were melted in a graphite crucible under vacuum (1 Pa), in which way the rare earth carbides formed by

International Journal of Minerals, Metallurgy and

Electrochemical deposition of Nd and Nd–Fe alloy from Cu 6 Nd alloy in a NaCl–KCl–NdCl 3 melt 54 days International Journal of Minerals, Metallurgy and Materials Read Towards a sustainable technology for production of extra-pure Ti metal: Electrolysis of

US5427657A

While such magnesium-rare earth element alloy has utility as is, electrolytic and chemical practices are also disclosed for reducing the rare earth element content of the magnesium alloy. Fused fluoride electrolytes for magnesium oxide electrolysis in the production of magnesium metal

Oxide

In dry oxygen, iron readily forms iron(II) oxide, but the formation of the hydrated ferric oxides, Fe 2 O 3−x (OH) 2x, that mainly comprise rust, typically requires oxygen and water. Free oxygen production by photosynthetic bacteria some 3.5 billion years ago precipitated iron out of solution in the oceans as Fe 2 O 3 in the economically important iron ore hematite.

Method for electrowinning of titanium metal or alloy from

EP0210961 1987-02-04 Plant for the electrolytic production of reactive metals in molten salt baths. JP6263626 March, 1987 JP5503314 April, 1990 JP8225980 September, 1996 JP2001509842A 2001-07-24 JP11246919 September, 1999 METHOD FOR REFINING

List of English Regular Papers / Toru H. Okabe / Institute

'Production of Scandium and Al-Sc Alloy by Metallothermic Reduction', M. Harata, T. Nakamura, H. Yakushiji, and T. H. Okabe: Mineral Processing and Extractive Metallurgy (Trans. Inst. Min Metall. C) vol. 117, no. 2 (2008) pp.95-99 (Edited version of the paper published in the proceedings of Sohn International Symposium on Advanced Processing of Metals and Materials, published by TMS (2006)).

Electrodeposition of Titanium in a Water

of Ti using KF–KCl as a molten salt electrolyte. Fluo-ride-based molten salts are known to yield smooth and com-pact Ti ˚lms. Among the alkali and alkaline earth ˜uorides, KF has an exceptionally high solubility in water (101.6 g per 100 g H 2O)19)

Recovery of Rare Earth Elements from NdFeB Magnet by

Recycled Nd-Fe-B sintered magnets prepared from sludges by calcium reduction-diffusion process. Journal of Rare Earths 2018, 36 (12), 1284-1291. DOI: 10.1016/j.jre.2018.03.028. Ruixi Bai, Fan Yang, Yang Zhang, Zhigang Zhao, Qiuxia Liao, Peng Chen

Production of metallic iron

Naturally occurring iron consists of four stable isotopes: 5.845% of 54 Fe, 91.754% of 56 Fe, 2.119% of 57 Fe and 0.282% of 58 Fe.Of these stable isotopes, only 57 Fe has a nuclear spin (− 1 ⁄ 2).The nuclide 54 Fe is predicted to undergo double beta decay, but this process had never been observed experimentally for these nuclei, and only the lower limit on the half-life was established: t

In situ electrochemical conversion of CO2 in molten salts

The above results indicate that Ca x Ge alloy is the catalyst seed for CNT formation during the molten salt electrolysis (). The control experiments demonstrate that when SnO 2 is adopted as the anode, Ge particles are the cathodic product without the formation of any CNTs, suggesting that cathodic CNTs originated from the graphite anode (fig. S9, A and B).

Electrochemical Behavior of Neodymium in Molten

2017/2/5The industrial process of production of the Nd-Fe alloy by electrolysis used to manufacture of NdFeB magnets consists in reducing Nd 3+ ions dissolved in a LiF-NdF 3-Nd 2 O 3 salt on iron cathode at 1050 C. This route was chosen since the electroplating of

Process for producing rare earth metals

In the molten salt electrolytic bath containing the molten electrolytic bath salt, a metal capable of forming an alloy with the rare earth metals contained in the starting material such as the rare earth carbonates, may be present for producing the rare earth metals

Final Report Summary

• An alloy mainly containing Nd (and other REEs) was obtain by constant potential electrolysis from synthetic feed in molten fluorides. The current efficiency is determined to be 50 % and energy consumption is 3.4 kWh/kg alloy (assuming that the product is pure Nd

Final Report Summary

• An alloy mainly containing Nd (and other REEs) was obtain by constant potential electrolysis from synthetic feed in molten fluorides. The current efficiency is determined to be 50 % and energy consumption is 3.4 kWh/kg alloy (assuming that the product is pure Nd

Membrane Purification Cell for Aluminum Recycling

2021/4/18article{osti_1029968, title = {Membrane Purification Cell for Aluminum Recycling}, author = {DeYoung, David and Wiswall, James and Wang, Cong}, abstractNote = {Recycling mixed aluminum scrap usually requires adding primary aluminum to the scrap stream as a diluent to reduce the concentration of non-aluminum constituents used in aluminum alloys.

The Behaviour of Gas Bubble during Rest Period of Pulse

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform. Data correspond to usage on the plateform after

Direct oxygen removal technique for recycling titanium

S. Takeuchi and O. Watanabe, Studies on the Method for the Electro-Refining of Titanium from the Molten Salts (1) Effect of the Various Molten Salt Baths on the Electro-Refining, J. Jpn. Inst. Met., 1964, 28, 633 —638 CrossRef CAS

George Zheng Chen

Liquid salts refer to liquids of ions or ionic matters disregarding temperatures, and hence include the traditional high temperature molten salts and the relatively new room temperature ionic liquids. By convention, molten is a state resulting from heating, and liquid

Procedure for production of aluminium alloys for foil rolling

The table is a Grade σ in, MPa σ of 0.2, MPa δ, % 21 α=0 1 α=45 12 α=90 8011 Stocking 89 62 14 0,335 0,342 0,347 8011 Foil 105 65 18 0,338 0,344 0,354 8079 Stocking 97 69 14 0,339 0,343 0.351 8079 Foil 123 67 16 0,298 0,321 0,319 8006 Stocking

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