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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Cast Shop Technology: Recycling and Sustainability Joint Session
Presentation Title C-47: Promotion of Separation of Two Phase Liquid Metals by Applying Mechanical Vibration
Author(s) Yuichiro Murakami, Shuji Tada, Mingjun Li, Isao Matsui, Naoki Omura
On-Site Speaker (Planned) Yuichiro Murakami
Abstract Scope Amount of waste from electric motor is expected to increase by the spread of hybrid vehicles and electric vehicles. The pyro-recycle method, that is, separation and collection method of copper and rare earth elements by directly melting of a rotor of a motor, is expected as efficient and low cost method to recycle an electric motor. Cu and Fe are dissolved each other in the liquid phase, but they are separated by the addition of several percent carbon. In this study, we attempted to apply mechanical vibration to the melted magnet and copper to promote phase separation of Cu and Fe phase. Moreover we investigated distribution of rare earth elements in the copper and ferrous phase. By the results, the phase separation was promoted by applying feeble mechanical vibration such as 60 Hz, 0.75 G in a short time. Also rare earth elements were concentrated in the copper phase.
Proceedings Inclusion? Planned: Light Metals


Behavior of Mg-Si-rich Phases in Aluminum Can Sheets and Their Impact on Metal Oxidation during Industrial Thermal Pre-treatment
C-47: Promotion of Separation of Two Phase Liquid Metals by Applying Mechanical Vibration
Dissipative Use of Critical Metals in the Aluminum Industry
Environmental Impacts of Aluminum Dross after Metal Extraction
In-situ Observation of Dross Formation during Melting of Al-Mg Alloy
Potential for Handheld Analyzer to Address Emerging Positive Material Identification (PMI) Challenges
Recycling of Oxide from Dross into Aluminum Electrolysis Cells
The Implementation of a Comprehensive Dross Management Program at Constellium Ravenswood

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