| Investigating the effect of dolomite calcination on its dissolution behavior |
| کد مقاله : 1136-ICME2025 (R1) |
| نویسندگان |
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راضیه خوشحال *1، سید وحید علوی نژاد خلیل آباد2 1دانشیار دانشگاه صنعتی بیرجند 2استادیار گروه مهندسی عمران دانشگاه صنعتی بیرجند |
| چکیده مقاله |
| Dolomite is a valuable mineral that has wide industrial applications, among which it can be utilized in steel making, refractory, glass making, ferromagnesium, metallic magnesium production, filler and coal mining. Dolomite is formed from calcite (CaCO3) and magnesite (MgCO3). Each carbonate is calcined at a certain temperature. To obtain the temperature and calcination conditions of dolomite, different heat treatment temperatures were used. It was found that at a temperature of 600°C, the calcination process does not occur in dolomite, but at a temperature of 1000°C degrees, this process is completed. Following, based on the the comes about gotten from the primary portion diverse tests, uncalcined dolomite and calcined dolomite samples which were heat treated at temperatures of 600°C, 800°C and 1000°C were dissolved in hydrochloric acid to compare their dissolution behavior. The dissolution conditions were the rpm of 200, the pulp density of 50, the concentration of hydrochloric acid of 37%, and the room temperature (25°C). It was found that the sample calcined at 1000ºC has the highest amount of dissolved magnesium. |
| کلیدواژه ها |
| Dolomite, Calcination, Leaching, HCl acid, Decomposition |
| وضعیت: پذیرفته شده برای ارسال فایل های ارائه پوستر |
