scholarly journals Applying design of experiments to evaluate economic feasibility of rare-earth element recovery

Procedia CIRP ◽  
2020 ◽  
Vol 90 ◽  
pp. 165-170
Author(s):  
Sidi Deng ◽  
Jesus Perez-Cardona ◽  
Aihua Huang ◽  
Yuehwern Yih ◽  
Vicki S. Thompson ◽  
...  
Keyword(s):  
Rare Earth ◽  
Design Of Experiments ◽  
Rare Earth Element ◽  
Earth Element ◽  
Economic Feasibility

scholarly journals Combined Mining and Pulp-Lifting of Ferromanganese Nodules and Rare-Earth Element-Rich Mud around Minamitorishima Island in the Western North Pacific: A Prefeasibility Study

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 310
Author(s):  
Tetsuo Yamazaki ◽  
Naoki Nakatani ◽  
Rei Arai ◽  
Tsunehiro Sekimoto ◽  
Hiroyuki Katayama
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Construction Materials ◽  
Economic Feasibility ◽  
Northwest Pacific ◽  
Ferromanganese Nodules ◽  
Riser Pipe ◽  
High Concentrations ◽  
Lifting System

An examination of the technical and economic feasibility of the combined mining of the rare-earth element-rich mud (REE-rich mud) and ferromanganese nodules (FN) around Minamitorishima (Marcus) Island in Northwest Pacific is introduced. A previous study showed that the mining of REE-rich mud around Minamitorishima Island was not economically feasible. Therefore, in this study, three changes from the previous mining model to improve its economy are proposed. The first one is combined mining with FN in the area. The second one is introducing a pulp-lifting system that can lift both REE-rich mud and FN at high concentrations through a riser pipe. The third one is the reuse of waste mud and processed slag for construction materials. The economic evaluation results show a change from a slightly negative to quite positive economy depending on the mixing ratio of REE-rich mud and FN in the pulp-lifting. In addition, some technical approaches necessary to realize the combined mining method are introduced.

scholarly journals ECONOMIC FEASIBILITY OF RARE EARTH ELEMENT EXTRACTION FROM WYOMING COAL ASH/CHAR

2016 ◽  
Author(s):  
Aaron J. Enriquez ◽  
◽  
David C. Finnoff ◽  
J. Fred Mclaughlin ◽  
Davin A. Bagdonas
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Coal Ash ◽  
Economic Feasibility

RARE EARTH ELEMENT AND THORIUM ASSAYING IN PARTS OF THE EAST COAST, INDIA

2016 ◽  
Author(s):  
Shayantani Ghosal ◽  
◽  
Sudha Agrahari ◽  
Debashish Sengupta
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
East Coast
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