Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin
The ever-increasing amount of municipal waste due to the rising demand for consumer goods presents a significant challenge in finding new, effective methods for material recovery and recycling. A considerable proportion of these materials are steel cans made of tin-coated steel sheets. Tin, being a...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2024-12-01
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| Series: | Archives of Foundry Engineering |
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| Online Access: | https://journals.pan.pl/Content/133781/AFE%204_2024_18.pdf |
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| author | B.J. Gajda J. Reterski |
| author_facet | B.J. Gajda J. Reterski |
| author_sort | B.J. Gajda |
| collection | DOAJ |
| description | The ever-increasing amount of municipal waste due to the rising demand for consumer goods presents a significant challenge in finding new, effective methods for material recovery and recycling. A considerable proportion of these materials are steel cans made of tin-coated steel sheets. Tin, being a metal with broad applications and limited natural resources, should be recovered from waste materials. Recovering/removing tin from waste steel cans would make them a more attractive raw material for steel mills. Processes for recovering tin from the surface of steel sheets in used cans mainly rely on hydrometallurgical methods. This paper presents the results of tin recovery from steel sheets using leaching with a 1M NaOH solution at 90°C. Tests were conducted on the removal of paint and varnish layers that inhibit the tin removal process. The results show that it is possible to improve the efficiency of tin recovery from cans through chemical treatment, which will significantly increase steel mills' interest in this type of waste as a valuable input for metallurgical processes and a source of iron. Closing the loop in a closed circuit involved the electrolysis of tin from the leaching solution. |
| format | Article |
| id | doaj-art-c8c0af952a4d4f35951d91655b2c8cbb |
| institution | Kabale University |
| issn | 2299-2944 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj-art-c8c0af952a4d4f35951d91655b2c8cbb2025-01-27T10:10:36ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442024-12-01vol. 24No 4136141https://doi.org/10.24425/afe.2024.151321Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing TinB.J. Gajda0https://orcid.org/0000-0003-0687-1838J. Reterski1Częstochowa University of Technology, PolandProvincial Inspectorate for Environmental Protection in Katowice, PolandThe ever-increasing amount of municipal waste due to the rising demand for consumer goods presents a significant challenge in finding new, effective methods for material recovery and recycling. A considerable proportion of these materials are steel cans made of tin-coated steel sheets. Tin, being a metal with broad applications and limited natural resources, should be recovered from waste materials. Recovering/removing tin from waste steel cans would make them a more attractive raw material for steel mills. Processes for recovering tin from the surface of steel sheets in used cans mainly rely on hydrometallurgical methods. This paper presents the results of tin recovery from steel sheets using leaching with a 1M NaOH solution at 90°C. Tests were conducted on the removal of paint and varnish layers that inhibit the tin removal process. The results show that it is possible to improve the efficiency of tin recovery from cans through chemical treatment, which will significantly increase steel mills' interest in this type of waste as a valuable input for metallurgical processes and a source of iron. Closing the loop in a closed circuit involved the electrolysis of tin from the leaching solution.https://journals.pan.pl/Content/133781/AFE%204_2024_18.pdftinsteel wasterecovery leaching process |
| spellingShingle | B.J. Gajda J. Reterski Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin Archives of Foundry Engineering tin steel waste recovery leaching process |
| title | Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin |
| title_full | Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin |
| title_fullStr | Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin |
| title_full_unstemmed | Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin |
| title_short | Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin |
| title_sort | improving the attractiveness of waste steel cans for steel mills by removing tin |
| topic | tin steel waste recovery leaching process |
| url | https://journals.pan.pl/Content/133781/AFE%204_2024_18.pdf |
| work_keys_str_mv | AT bjgajda improvingtheattractivenessofwastesteelcansforsteelmillsbyremovingtin AT jreterski improvingtheattractivenessofwastesteelcansforsteelmillsbyremovingtin |