Microwave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solution
The Basic Oxygen Furnace (BOF) slag can be potentially used in the indirect aqueous CO2 sequestration process due to the fact that it contains large amounts of basic oxides. In this study, microwave-assisted selective leaching of calcium from BOF slag with ammonium chloride solution has bee...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2017-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700007Z.pdf |
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| _version_ | 1832574109470425088 |
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| author | Zhang X. Ma G. Tong Z. Xue Z. |
| author_facet | Zhang X. Ma G. Tong Z. Xue Z. |
| author_sort | Zhang X. |
| collection | DOAJ |
| description | The Basic Oxygen Furnace (BOF) slag can be potentially used in the indirect
aqueous CO2 sequestration process due to the fact that it contains large
amounts of basic oxides. In this study, microwave-assisted selective leaching
of calcium from BOF slag with ammonium chloride solution has been
investigated in order to improve the extraction efficiency of calcium ion,
and reduce leaching time and the contents of impurity ions in the leachate.
The results show that the major phases of BOF slag, such as Ca2SiO4, Ca3SiO5
and Ca2Fe2O5, can react with ammonium chloride solution. The microwave power
has significant effects on the leaching ratio of calcium ion from the BOF
slag. After microwave-assisted leaching treatment, the internal tiny cracks
can be found inside the BOF slag particles. The leaching ratio of calcium ion
can be up to 90 % with small amounts of impurity ions existed in the
leachate. The non-isothermal leaching reactions are controlled by internal
diffusion and the apparent activate energies are estimated to be 6.9-26.5
kJ/mol. |
| format | Article |
| id | doaj-art-816f61617de942b49e95b0b7d39ce826 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-816f61617de942b49e95b0b7d39ce8262025-02-02T00:52:12ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752017-01-0153213914610.2298/JMMB160602007Z1450-53391700007ZMicrowave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solutionZhang X.0Ma G.1Tong Z.2Xue Z.3Wuhan University of Science and Technology, The State Key Laboratory of Refractories and Metallurgy, Wuhan, ChinaWuhan University of Science and Technology, The State Key Laboratory of Refractories and Metallurgy, Wuhan, ChinaWuhan University of Science and Technology, The State Key Laboratory of Refractories and Metallurgy, Wuhan, ChinaWuhan University of Science and Technology, The State Key Laboratory of Refractories and Metallurgy, Wuhan, ChinaThe Basic Oxygen Furnace (BOF) slag can be potentially used in the indirect aqueous CO2 sequestration process due to the fact that it contains large amounts of basic oxides. In this study, microwave-assisted selective leaching of calcium from BOF slag with ammonium chloride solution has been investigated in order to improve the extraction efficiency of calcium ion, and reduce leaching time and the contents of impurity ions in the leachate. The results show that the major phases of BOF slag, such as Ca2SiO4, Ca3SiO5 and Ca2Fe2O5, can react with ammonium chloride solution. The microwave power has significant effects on the leaching ratio of calcium ion from the BOF slag. After microwave-assisted leaching treatment, the internal tiny cracks can be found inside the BOF slag particles. The leaching ratio of calcium ion can be up to 90 % with small amounts of impurity ions existed in the leachate. The non-isothermal leaching reactions are controlled by internal diffusion and the apparent activate energies are estimated to be 6.9-26.5 kJ/mol.http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700007Z.pdfmicrowaveleachingbasic oxygen furnace slagammonium chlorideCO2 sequestration |
| spellingShingle | Zhang X. Ma G. Tong Z. Xue Z. Microwave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solution Journal of Mining and Metallurgy. Section B: Metallurgy microwave leaching basic oxygen furnace slag ammonium chloride CO2 sequestration |
| title | Microwave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solution |
| title_full | Microwave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solution |
| title_fullStr | Microwave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solution |
| title_full_unstemmed | Microwave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solution |
| title_short | Microwave-assisted selective leaching behavior of calcium from Basic Oxygen Furnace (BOF) slag with ammonium chloride solution |
| title_sort | microwave assisted selective leaching behavior of calcium from basic oxygen furnace bof slag with ammonium chloride solution |
| topic | microwave leaching basic oxygen furnace slag ammonium chloride CO2 sequestration |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700007Z.pdf |
| work_keys_str_mv | AT zhangx microwaveassistedselectiveleachingbehaviorofcalciumfrombasicoxygenfurnacebofslagwithammoniumchloridesolution AT mag microwaveassistedselectiveleachingbehaviorofcalciumfrombasicoxygenfurnacebofslagwithammoniumchloridesolution AT tongz microwaveassistedselectiveleachingbehaviorofcalciumfrombasicoxygenfurnacebofslagwithammoniumchloridesolution AT xuez microwaveassistedselectiveleachingbehaviorofcalciumfrombasicoxygenfurnacebofslagwithammoniumchloridesolution |