Scandium extraction technology and environmental impact analysis of tailings from bayan obo mine in china

Author: 
Wang Lu, Wang Qianqian, Lu Husheng and Jiao Guohua

Bayan Obo mine is a world-famous polymetallic deposit characterized by rare-earth resources, with extremely comprehensive utilization value. After exploitation over a half century, it produces many industrial solid wastes such as tailings. The so called “waste” is also secondary resource, still contains multiple valuable elements, especially scandium. Extracting scandium from tailings in Bayan Obo not only can reduce many social problems which brought by tailings storage, but also can create extremely high economic value. This study mainly explores some methods that extracting and recycling scandium from Bayan Obo tailings, analyzes its advantages and disadvantages, and gives a direction of technology improvement, which provides a basis for the green, comprehensive and high-value utilization of the Bayan Obo mine.

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DOI: 
http://dx.doi.org/10.24327/ijcar.2019.19017.3650
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Volume8