Determination of Rare Earth Elements Content in Hard Coal Type 31.1

Abstract

The aim of the article is to present the results of laboratory analyses determining the content of rare earth elements (REE) in hard coal type 31.1. Coal was extracted directly from the mining excavation located in the Upper Silesian Coal Basin. Mass spectrometry tests with ionization in inductively coupled plasma (ICP-MS), were aimed at the quantitative analysis of the share of REE in coal, taking into account the economic aspects of recovery of these elements. Fine ground hard coal samples and ashes obtained after coal burning were assessed for the rare earth elements concentration. Results of the rare earth elements concentration (lanthanum and cerium) in hard coal are similar in the values obtained in previous tests. The current analyses present higher concentration of europium or neodymium. The article also contains the concept of possible future research work, consisting in the recovery of rare earth elements using, among others, a classifying hydrocyclone.

Distribution of Selected Critical Elements in the Carboniferous Coal‐bearing Series of the Upper Silesian and Lublin Coal Basins (Poland)

“…Slightly higher Sc concentrations (18-21 ppm) were found in rock samples from the bands, roofs and floors of coal seams within the NW part of the USCB (Kokowska-Pawłowska, 2018). Sc concentration reported for Polish hard coal ranges from 0.86 to 20 for the USCB and from 1.5 to 20.5 ppm for the LCB (Baron, 2020). There is no general agreement in the literature regarding the mode of Sc occurrence.…”

Badania zapraw cementowych i żużlowych z granulatami gumowymi SBR pod względem ekotoksykologiczności i wytrzymałości

“…Determination of leachability of elements: total Cr, Zn, Cd, Sn, Pb from mortars was carried out by the inductively coupled plasma mass spectrometry (ICP-MS) method with the use of Agilent 7900 ICP-MS. This method is characterized by a low limit of quantification and high selectivity, which enables the simultaneous determination of many elements in complex matrices, such as trace amounts of rare earth elements (REE) in waste [49].…”

Challenges and opportunities for sustainable valorization of rare earth metals from anthropogenic waste

“…Kolker et al have reported US coal combustion fly ash contains 192–1667 ppm (Kolker et al 2017 ). Baron has reported the average worldwide REM content in hard coal could be 60 ppm (Scott and Kolker 2019 ; Baron 2020 ). Kumari et al have reported 1035 g.ton −1 of REM content in Indian-origin coal bottom ash (Kumari et al 2019 ).…”