پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 163 |
| تعداد شماره‌ها | 6,761 |
| تعداد مقالات | 72,822 |
| تعداد مشاهده مقاله | 131,640,363 |
| تعداد دریافت فایل اصل مقاله | 103,418,263 |
Magnesium Oxide Production from Dolomite Ore | ||
| International Journal of Mining and Geo-Engineering | ||
| مقاله 10، دوره 59، شماره 2، شهریور 2025، صفحه 171-174 اصل مقاله (689.59 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2025.395582.595254 | ||
| نویسندگان | ||
| Hasan Vafaei jirsaraei* ؛ Ziaeddin Purkarimi؛ Reza Parvareh؛ Behrouz Karimi Shahraki؛ Seyed Ramin Bani Hashemi؛ Morteza Dehghani | ||
| Iranian Mineral Processing Research Center (IMPRC). | ||
| چکیده | ||
| In this study, the production of magnesium oxide (MgO) from dolomite ore (CaMg(CO₃) ₂) sourced from a mine in the southern region of the country was investigated. Following sample collection, dolomite was transported to the Iranian Mineral Processing Research Center for XRF, ICP, XRD, and TGA-DTA analyses. The results of mineralogical and chemical analyses indicated that dolomite and calcite were predominant minerals, both critical for magnesium production. The calcination process at a particle size of 3 mm and a temperature of 800°C converted dolomite into an oxide phase. Magnesium oxide was subsequently produced through acid leaching using 2M HCl at a solid-to-liquid ratio of 5:15 at 70°C for 3 hours. The precipitation process using NaOH at a pH of 8–9 resulted in the formation of magnesium hydroxide, which was further heated at 600°C to convert it into magnesium oxide (MgO).The results demonstrated that the complete production of magnesium oxide is feasible at the Iranian Mineral Processing Research Center. This study highlights the high potential of the dolomite mine in the southern region as a source of raw material for MgO production and emphasizes the need to develop industrial infrastructure to complete the value chain of this strategic material. | ||
| کلیدواژه‌ها | ||
| Magnesium؛ Dolomite؛ Calcination؛ Acid Leaching | ||
| مراجع | ||
|
[1] Akhmedov, M., Dadakhodzhaev, A., & Guro, V. (2018). Technology of Processing of Navbakhore Dolomite on Magnesium Compounds. Open Access Journal of Chemistry, *2*(1), 1-6.
[2] Amer, A. (1996). A contribution to hydrometallurgical processing of low-grade Egyptian dolomite deposits. Hydrometallurgy, *43*(1-3), 345-356.
[3] Azizi, A., & Jafarnejad, M. (2017). Leaching of magnesium from dolomite ore in nitric acid solutions. International Journal of Mineral Processing, *166*, 45-51.
[4] El-Naggar, M. R., El-Kamash, A. M., & El-Dessouky, M. I. (2009). Extraction of magnesium from hydrometallurgical tailings by hydrochloric acid leaching. Journal of Hazardous Materials, *168*(2-3), 832-837.
[5] Kipouros, G. J., & Sadoway, D. R. (2001). Toward greener processes for the production of magnesium: An overview. Journal of Metals, *53*(5), 34-37.
[6] Liu, Y., & Li, J. (2015). A novel process for the extraction of magnesium from dolomite by vacuum aluminothermic reduction. Journal of Alloys and Compounds, *619*, 634-638.
[7] Royani, A., Sulistiyono, E., Prasetiyo, A., & Subagja, R. (2018). Extraction of magnesium from calcined dolomite ore using hydrochloric acid leaching. AIP Conference Proceedings, *1964*(1), 020030.
[8] Warren, J. K. (2016). Evaporites: A geological compendium (2nd ed.). Springer.
[9] Yildirim, M. (2008). Dissolution kinetics of Icel-Aydincik dolomite in hydrochloric acid. Journal of the Southern African Institute of Mining and Metallurgy, *108*(2), 127-132.
[10] Yildirim, M., & Akarsu, H. (2010). Preparation of magnesium oxide (MgO) from dolomite by leach-precipitation-pyrohydrolysis process. Physicochemical Problems of Mineral Processing, *44*, 257-272 | ||
|
آمار تعداد مشاهده مقاله: 17 تعداد دریافت فایل اصل مقاله: 28 |
||
سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب