Preparation of Magnesium-Rare Earth Master Alloy Using Electrowinning Method with Subsidence Cathode

D.P. Zhang; D.Q. Fang; J. Wang; D.X. Tang; H.Y. Lu; L.S. Zhao; Jian Meng

doi:10.4028/www.scientific.net/MSF.488-489.235

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HomeMaterials Science ForumMaterials Science Forum Vols. 488-489Preparation of Magnesium-Rare Earth Master Alloy...

Preparation of Magnesium-Rare Earth Master Alloy Using Electrowinning Method with Subsidence Cathode

Abstract:

A new series of magnesium-rare earth master alloys have been developed by the electrowinning method with subsidence cathode in the KCl•NaCl-RECl3 system. The electrolysis conditions were studied. Experimental results showed that the optimum for electrolyte at 850oC and 10~20wt% RECl3 content in the molten salt system. The current efficiency of electrolyte increased with increasing the rare earth content and reach the maximum at the content of 20% RECl3. The current efficiency gradually decreased with increasing cathode current density. The component of master-alloys was analyzed using ICP-MS and chemical method. A series of magnesium-rare earth master-alloy, Mg-Y, Mg-Nd, Mg-Ce, Mg-La, Mg-Nd-rich and Mg-LPC were successfully prepared and the content of rare earth is adjustable between 5 – 20%.

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Materials Science Forum (Volumes 488-489)

Pages:

235-238

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.488-489.235

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Online since:

July 2005

Authors:

D.P. Zhang, D.Q. Fang, J. Wang, D.X. Tang, H.Y. Lu, L.S. Zhao, Jian Meng

Keywords:

Electrolysis, Master Alloy, Mg-RE Master Alloy, Rare Earth (RE), Subsidence Cathode

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