| Simulation and optimization of magnesium extraction from dolomite by aluminothermy method |
| کد مقاله : 1172-ICME2025 (R1) |
| نویسندگان |
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راضیه خوشحال *1، سید وحید علوی نژاد خلیل آباد2 1دانشیار دانشگاه صنعتی بیرجند 2دانشگاه صنعتی بیرجند |
| چکیده مقاله |
| Magnesium is a valuable element with a lightweight, a low melting point, and a density of about two-thirds of aluminum. Due to its suitable properties, magnesium has found many applications in industry. Among them, we can mention the use of magnesium in military sectors, automotive electronic communications, and aerospace industries. Magnesium can be extracted from different sources and in different ways. One of these methods is the dolomite aluminothermy method. Various factors have been used to accelerate this process. In this research, the effect of three factors, the pressure of the compressed sample, the amount of CaF2 additive, and the amount of argon gas flow on the amount of magnesium reduction have been investigated. With the help of the Box-Behnken method and using Design Expert 11 software, the design experiments and the influence of the effective factors were evaluated. It was found that it can be done with the help of a quadratic model to describe the behavior governing the data. This model was very satisfying. Finally, based on the obtained results, the optimal conditions of the examined factors were determined to reach the maximum amount of magnesium recovery. It was found that if the pressure of 16.65 MPa, the argon gas flow of 0.2, and the amount of CaF2 of 4.94% are used, the amount of magnesium extraction would be about 90%. |
| کلیدواژه ها |
| Dolomite, Calcination, Leaching, HCl acid, Decomposition |
| وضعیت: پذیرفته شده برای ارسال فایل های ارائه پوستر |
