Patent Analysis of the Rare Earth Extracting Separation Technology

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Abstract:

The extraction separation is a main process to obtain the rare earth metals. In this paper, the distributions of the patent applications on the rare earth extraction separation techniques were analyzed. The main methods of the rare earth extraction separation including solvent extraction, precipitation and ion exchange were summarized. The existing problems in the rare earth industry were discussed and the development trend of rare earth industry was predicted. Furthermore, the effective patent strategy in this field was also brought forward.

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4597-4600

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Koen Binnemans, Peter Tom Jones, Bart Blanpain. Recycling of Rare Earths: a Critical Review, Journal of Cleaner Production[J], 2013 51 1-22.

DOI: 10.1016/j.jclepro.2012.12.037

Google Scholar

[2] T Oki, S Koyanaka, Y Nishisu, N Hayashi, Advanced Physical Separation Technology for Rare Metal Recycling,Resources Processing[J], 2011 58(3) 95-100.

DOI: 10.4144/rpsj.58.95

Google Scholar

[3] W A Wachter, US4346067, (1982).

Google Scholar

[4] I Nishikawa, M Okubo, H Takahashi, JPS6374914, (1988).

Google Scholar

[5] K Inoue, JPS61210132, (1985).

Google Scholar

[6] Xiaowei Huang, Zhiqi Long, Hongwei Li, Dali Cui, Xinlin Peng, CN101798627, (2009).

Google Scholar

[7] Dexiang He, Liewen Liao, Ruiwen Xu, CN1033976, (1989).

Google Scholar

[8] Xinmu Zhou, Yongxiu Li, Dongping Li, Jing Li, Nianzhu Liu, CN102816930, (2012).

Google Scholar

[9] Jianrong Huang,CN101709392,(2009).

Google Scholar

[10] Wenlin Xu, Yajing Wang, Xiaoting Wei, Jinyu Zhu, Wei Wei, CN101012512, (2007).

Google Scholar

[11] Hongtao Chang, Mei Li, Fushun Zhang, Zhaogang Liu, Yanhong HU, CN101787451, (2010).

Google Scholar