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Methodological study of evaluating the traceability of neodymium based on the global substance flow analysis and Monte Carlo simulation

Shinichirou Morimoto, Kenzo Sanematsu, Kimihiro Ozaki, Akito Ozawa and Yuna Seo

Resources Policy, 2019, vol. 63, issue C, -

Abstract: Neodymium is a particularly important mineral among rare earth elements (REE) and is used in NdFeB magnets in many motors and electronic devices. In recent years, by the extremely rapid growth in the demand for neodymium, many substance flow analysis (SFA) studies have been conducted to evaluate the global flow and stock of neodymium and to analyze its recycling potential. However, illegal mining, unknown trading and end-of-life (EOL) based recycle of mineral resources such as REE cannot be quantitatively evaluated using only publicly available data. Their actual quantities involved in these activities are greatly affected by politics and production economics in countries such as China, Russia, India, etc Therefore, the lack of knowledge of the quantity of neodymium in existence is an urgent problem for the industrial sector. Accordingly, in recent years, a variety of initiatives centered in Europe have been considered to clarify its traceability.

Keywords: Rare earth; Neodymium; Permanent magnet; Substance flow analysis; Illegal mining; Monte Carlo Simulation (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:jrpoli:v:63:y:2019:i:c:6

DOI: 10.1016/j.resourpol.2019.101448

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