Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage
Abstract
In one aspect, the disclosure relates to a continuous process for treating acid mine drainage while simultaneously recovering a high-grade rare earth preconcentrate suitable for extraction of commercially valuable rare earth oxides. In a further aspect, the preconcentrate is from about 0.1% to 5% rare earth elements on a dry weight basis. In another aspect, the disclosure relates to a method for processing the preconcentrate to generate a pregnant leach solution that does not form gels or emulsions and is suitable for processing via solvent extraction. In another aspect, the disclosure relates to a system and plant for carrying out the disclosed process. In still another aspect, the disclosure relates to a composition containing rare earth elements produced by the process disclosed herein. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
- Inventors:
- Issue Date:
- Research Org.:
- West Virginia Univ., Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1805653
- Patent Number(s):
- 10954582
- Application Number:
- 16/795,471
- Assignee:
- West Virginia University (Morgantown, WV)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- DOE Contract Number:
- FE0031524
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 02/19/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Ziemkiewicz, Peter F., Noble, Aaron, and Vass, Chris. Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage. United States: N. p., 2021.
Web.
Ziemkiewicz, Peter F., Noble, Aaron, & Vass, Chris. Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage. United States.
Ziemkiewicz, Peter F., Noble, Aaron, and Vass, Chris. Tue .
"Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage". United States. https://www.osti.gov/servlets/purl/1805653.
@article{osti_1805653,
title = {Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage},
author = {Ziemkiewicz, Peter F. and Noble, Aaron and Vass, Chris},
abstractNote = {In one aspect, the disclosure relates to a continuous process for treating acid mine drainage while simultaneously recovering a high-grade rare earth preconcentrate suitable for extraction of commercially valuable rare earth oxides. In a further aspect, the preconcentrate is from about 0.1% to 5% rare earth elements on a dry weight basis. In another aspect, the disclosure relates to a method for processing the preconcentrate to generate a pregnant leach solution that does not form gels or emulsions and is suitable for processing via solvent extraction. In another aspect, the disclosure relates to a system and plant for carrying out the disclosed process. In still another aspect, the disclosure relates to a composition containing rare earth elements produced by the process disclosed herein. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {3}
}
Works referenced in this record:
Continuous Solvent Extraction Process for Generation of High Grade Rare Earth Oxides from Leachates Generated from Coal Sources
patent-application, February 2020
- Werner, Joshua Michael; Chandra, Alind; Honaker, Rick Q.
- US Patent Application 16/534738; 20200048737
Low-Cost Selective Precipitation Circuit for Recovery of Rare Earth Elements from Acid Leachate of Coal Waste
patent-application, May 2019
- Zhang, Wencai; Honaker, Rick Q.
- US Patent Application 16/185120; 20190136344