METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN)
The relevance of the research is caused by the possibility of using coal not only as energy fuel, but also as a source of valuable elements-impurities (Ge, Re, Ga, Nb, Zr, Hf, Y, Au, REE, etc.). This is especially true of toxic impurities, since a significant amount of them are accumulated in ash an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2023-03-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya.tpu.ru/archive/article/view/3922/2911 |
| _version_ | 1797854144610959360 |
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| author | Diana A. Ibragimova Sergey I. Arbuzov Vasiliy S. Portnov |
| author_facet | Diana A. Ibragimova Sergey I. Arbuzov Vasiliy S. Portnov |
| author_sort | Diana A. Ibragimova |
| collection | DOAJ |
| description | The relevance of the research is caused by the possibility of using coal not only as energy fuel, but also as a source of valuable elements-impurities (Ge, Re, Ga, Nb, Zr, Hf, Y, Au, REE, etc.). This is especially true of toxic impurities, since a significant amount of them are accumulated in ash and slag waste, and a number of elements are carried out with gas phase or ash-entrainment into the atmosphere, which affects environmental pollution. The main aim of the research is to assess the content of elements-impurities and the forms of their presence in coals and ashes of the Shubarkol coal deposit. The objects of the study are coals and carbon-bearing rocks of the Shubarkol deposit (Central Kazakhstan). Methods: carbon spectrographic studies; IR spectrometric and pyrolytic; instrumental neutron activation analysis; mass spectrometric method with inductively coupled plasma; scanning electron microscopy with x-ray spectral analysis. Results. The authors have revealed the enrichment of coals from the Shubarkol deposit with REE, Sc, Co, Cs, Zr, Ag and Ba. Coal seam 2B3 (Ad – 4,8 %) is characterized by the highest contents in the section of Be, Sc, Co, Zr, Mo, W, Ag, Sb and U with increased contents of V, Cs and Hg in comparison with Сlark for coal. Individual coal seams (2В3 and 2В1), abnormally enriched with a group of elements and their coal ash can be considered as a rare-metal complex mineralization. In coal ash of 2B3 seam the content of a group of metals: Be (79.4 g/t), Sc (135 g/t), V (771 g/t), Co (493 g/t), Y (201 g/t), Zr (3328 g/t), Mo (130 g/t), Ag (5.4 g/t), Hf (63.5 g/t), and the sum of REE+Y (679 g/t) is higher than the minimum industrial values. Mineral forms of rare earth elements (zircon, baddeleyite, and monazite) were identified. |
| first_indexed | 2024-04-09T20:02:09Z |
| format | Article |
| id | doaj.art-87b6763dc7534b2cb4340f9aad5c06a4 |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-04-09T20:02:09Z |
| publishDate | 2023-03-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-87b6763dc7534b2cb4340f9aad5c06a42023-04-03T04:26:31ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302023-03-013343263910.18799/24131830/2023/3/3922METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN)Diana A. Ibragimova0Sergey I. Arbuzov1Vasiliy S. Portnov2Abylkas Saginov Karaganda technical universityNational Research Tomsk Polytechnic University; Far East Geological Institute FEB RASAbylkas Saginov Karaganda technical universityThe relevance of the research is caused by the possibility of using coal not only as energy fuel, but also as a source of valuable elements-impurities (Ge, Re, Ga, Nb, Zr, Hf, Y, Au, REE, etc.). This is especially true of toxic impurities, since a significant amount of them are accumulated in ash and slag waste, and a number of elements are carried out with gas phase or ash-entrainment into the atmosphere, which affects environmental pollution. The main aim of the research is to assess the content of elements-impurities and the forms of their presence in coals and ashes of the Shubarkol coal deposit. The objects of the study are coals and carbon-bearing rocks of the Shubarkol deposit (Central Kazakhstan). Methods: carbon spectrographic studies; IR spectrometric and pyrolytic; instrumental neutron activation analysis; mass spectrometric method with inductively coupled plasma; scanning electron microscopy with x-ray spectral analysis. Results. The authors have revealed the enrichment of coals from the Shubarkol deposit with REE, Sc, Co, Cs, Zr, Ag and Ba. Coal seam 2B3 (Ad – 4,8 %) is characterized by the highest contents in the section of Be, Sc, Co, Zr, Mo, W, Ag, Sb and U with increased contents of V, Cs and Hg in comparison with Сlark for coal. Individual coal seams (2В3 and 2В1), abnormally enriched with a group of elements and their coal ash can be considered as a rare-metal complex mineralization. In coal ash of 2B3 seam the content of a group of metals: Be (79.4 g/t), Sc (135 g/t), V (771 g/t), Co (493 g/t), Y (201 g/t), Zr (3328 g/t), Mo (130 g/t), Ag (5.4 g/t), Hf (63.5 g/t), and the sum of REE+Y (679 g/t) is higher than the minimum industrial values. Mineral forms of rare earth elements (zircon, baddeleyite, and monazite) were identified.http://izvestiya.tpu.ru/archive/article/view/3922/2911shubarkol depositcoalcoal ashelement-impuritiesmodes of occurrencesrare elements |
| spellingShingle | Diana A. Ibragimova Sergey I. Arbuzov Vasiliy S. Portnov METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN) Известия Томского политехнического университета: Инжиниринг георесурсов shubarkol deposit coal coal ash element-impurities modes of occurrences rare elements |
| title | METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN) |
| title_full | METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN) |
| title_fullStr | METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN) |
| title_full_unstemmed | METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN) |
| title_short | METALLIFEROUS COALS OF SHUBARKOL DEPOSIT (CENTRAL KAZAKHSTAN) |
| title_sort | metalliferous coals of shubarkol deposit central kazakhstan |
| topic | shubarkol deposit coal coal ash element-impurities modes of occurrences rare elements |
| url | http://izvestiya.tpu.ru/archive/article/view/3922/2911 |
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