scholarly journals Study of Extraction of Rare Earth Elements from Hard Coal Fly Ash

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Ingrid ZNAMENÁČKOVÁ ◽  
Silvia DOLINSKÁ ◽  
Slavomír HREDZÁK ◽  
Vladimír ČABLÍK ◽  
Michal LOVÁS ◽  
...  
Keyword(s):  
Grain Size ◽  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash ◽  
Size Reduction ◽  
Hard Coal ◽  
Alternative Possibility ◽  
Laboratory Results ◽  
By Products

Rare earth elements (REEs) extraction from wastes and/or by-products is alternative possibility of their winning. The occurrence ofREEs, namely 50.1 ppm of La, 100.1 ppm of Ce and 44.3 ppm of Nd was confirmed in solid fly ash samples from the coal fired heatingplant (TEKO, Inc. Košice, eastern Slovakia). The submitted contribution presents laboratory results of REEs leaching from coal fly ashusing 3M HCl, HNO3, H2SO4 and H3PO4 at 80°C during 120 min.It was found, that recoveries 65.5% of La, 64.4% Ce and 64.3% of Nd into liquor may be attained after grain size reduction to below5 μm.

scholarly journals Rare earth elements in deposited hard coal fly ash in Poland

2021 ◽  
Vol 278 ◽  
pp. 01016
Author(s):  
Justyna Woźniak ◽  
Marcel Gurdziel
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Power Plants ◽  
Coal Fly Ash ◽  
Raw Material ◽  
Hard Coal ◽  
Central Statistical ◽  
Central Statistical Office ◽  
Modern Technologies

Rare Earth Elements (REEs), due to their unique properties, are nowadays a desirable raw material, especially in the development of modern technologies. This paper describes a 4-step research methodology for the task of identifying the potential for REE recovery in landfilled fly ash. A literature analysis was performed on their significance, occurrence in both primary and secondary deposits. Opportunities for REE recovery from coal fly ash in conventional power plants were identified and selected technologies were described. Poland, as a country whose energy sector is to a large extent based on coal, has a potential in this respect. Taking into account studies of the Polish Central Statistical Office (GUS) and forecasts of the Polish energy policy, the article determines the approximate value of REE in the waste stream from coal-fired power plants burning hard coal.

scholarly journals Coal fly ash as a resource for rare earth elements

2015 ◽  
Vol 22 (12) ◽  
pp. 9464-9474 ◽  
Author(s):  
Wojciech Franus ◽  
Małgorzata M. Wiatros-Motyka ◽  
Magdalena Wdowin
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash

Study on the modes of occurrence of rare earth elements in coal fly ash by statistics and a sequential chemical extraction procedure

Fuel ◽  
2019 ◽  
Vol 237 ◽  
pp. 555-565 ◽  
Author(s):  
Jinhe Pan ◽  
Changchun Zhou ◽  
Mengcheng Tang ◽  
Shanshan Cao ◽  
Cheng Liu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash ◽  
Extraction Procedure ◽  
Chemical Extraction ◽  
Modes Of Occurrence ◽  
Sequential Chemical Extraction

scholarly journals Selective Recovery of Rare Earth Elements from Coal Fly Ash Leachates Using Liquid Membrane Processes

2019 ◽  
Vol 53 (8) ◽  
pp. 4490-4499 ◽  
Author(s):  
Ryan C. Smith ◽  
Ross K. Taggart ◽  
James C. Hower ◽  
Mark R. Wiesner ◽  
Heileen Hsu-Kim
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Liquid Membrane ◽  
Coal Fly Ash ◽  
Membrane Processes ◽  
Selective Recovery

Recovery of rare-earth elements from coal fly ash via enhanced leaching

2020 ◽  
pp. 1-15 ◽  
Author(s):  
Zhiping Wen ◽  
Changchun Zhou ◽  
Jinhe Pan ◽  
Shanshan Cao ◽  
Tingting Hu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash

Microwave-Assisted Pretreatment of Coal Fly Ash for Enrichment and Enhanced Extraction of Rare-Earth Elements

2019 ◽  
Vol 33 (11) ◽  
pp. 12083-12095 ◽  
Author(s):  
Gunes A. Yakaboylu ◽  
Daniel Baker ◽  
Brandon Wayda ◽  
Katarzyna Sabolsky ◽  
John W. Zondlo ◽  
...  
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash ◽  
Microwave Assisted

Developments in Characterization and Mineral Processing of Coal Fly Ash for Recovery of Rare Earth Elements

2021 ◽  
pp. 431-471
Author(s):  
Tumuluri Sreenivas ◽  
Md Serajuddin ◽  
Ramkaran Moudgil ◽  
Kacham Anand Rao
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash ◽  
Mineral Processing

Mining value from waste: Scandium and rare earth elements selective recovery from coal fly ash leach solutions

2021 ◽  
Vol 173 ◽  
pp. 107091
Author(s):  
Mehdi Mostajeran ◽  
Jean-Michel Bondy ◽  
Nicolas Reynier ◽  
Rory Cameron
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash ◽  
Selective Recovery
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