دورية أكاديمية
Study on the Effect of Calcium Alloy on Arsenic Removal from Scrap-Based Steel Production
| العنوان: | Study on the Effect of Calcium Alloy on Arsenic Removal from Scrap-Based Steel Production |
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| المؤلفون: | Hanjie Yao, Changling Zhuang, Changrong Li, Song Xiang, Xiang Li, Guangkai Yang, Zezhong Zhang |
| المصدر: | Materials, Vol 16, Iss 8, p 3113 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | arsenic removal, calcium alloy, inclusion, arsenic removal agent, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | Scrap steel is a kind of resource that can be recycled indefinitely. However, the enrichment of arsenic in the recycling process will seriously affect the performance of the product, making the recycling process unsustainable. In this study, the removal of arsenic from molten steel using calcium alloys was investigated experimentally, and the underlying mechanism was explored based on thermodynamic principles. The results show that the addition of calcium alloy is an effective means of reducing the arsenic content in molten steel, with the highest removal percentage of 56.36% observed with calcium aluminum alloy. A thermodynamic analysis revealed that the critical calcium content required for arsenic removal reaction is 0.0037%. Moreover, ultra-low levels of oxygen and sulfur were found to be crucial in achieving a good arsenic removal effect. When the arsenic removal reaction occurs in molten steel, the oxygen and sulfur concentrations in equilibrium with calcium were wO=0.0012% and wS=0.00548%, respectively. After successful arsenic removal, the arsenic removal product of the calcium alloy is Ca3As2, which usually does not appear alone. Instead, it is prone to combining with alumina, calcium oxide, and other inclusions to form composite inclusions, which is beneficial for the floating removal of inclusions and the purification of scrap steel in molten steel. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 16083113 1996-1944 |
| Relation: | https://www.mdpi.com/1996-1944/16/8/3113; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma16083113 |
| URL الوصول: | https://doaj.org/article/4337a3e460ec49f9969e655f19ae3182 |
| رقم الأكسشن: | edsdoj.4337a3e460ec49f9969e655f19ae3182 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 16083113 19961944 |
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| DOI: | 10.3390/ma16083113 |