Kolesnikov Alexandr, Fediuk Roman, Kolesnikova Olga, Zhanikulov Nurgali, Zhakipbayev Bibol, Kuraev Rasim, Akhmetova Elmira, Shal Aizhan
Department of "Life Safety and Environmental Protection" M. Auezov South Kazakhstan University, Building B, Av. Tauke Khan, 5, Shymkent 160012, Kazakhstan.
Department of Science of Production and Innovation, M. Auezov South Kazakhstan University, Shymkent 160012, Kazakhstan.
Materials (Basel). 2022 Jan 3;15(1):324. doi: 10.3390/ma15010324.
This paper presents studies on the processing of enrichment tailings as a component of a raw mixture in order to obtain cement clinker, with simultaneous distillation of zinc. Thermodynamic studies were carried out in the temperature range of 600-1600 °C using the software application "HSC Chemistry 6" developed by the metallurgical company Outokumpu (Finland). As a result of the conducted studies, we found that zinc contributes to the intensification of mineral formation of cement clinker. In particular, it was found that the formation of belite is possible in the temperature range from 990.7 to 1500 °C with Gibbs energy values of -0.01 and -323.8 kJ (which is better than the standard process by -11.4 kJ), respectively; the formation of alite is possible in the temperature range from 982.9 to 1500 °C with Gibbs energy values of -0.05 and -402.1 kJ (better than the standard process by -11.4 kJ), respectively; the formation of tricalcium aluminate is thermodynamically possible in the temperature range from 600 °C at ΔG = -893.8 kJ to 1500 °C at ΔG = -1899.3 kJ (better than the standard process by -1570.1 kJ), respectively; and the formation of four calcium aluminoferrite is possible in the temperature range from 600 °C at ΔG = -898.9 kJ to 1500 °C at ΔG = -1959.3 kJ (better than the standard process by -1570.2 kJ), respectively, with simultaneous distillation of zinc into a gaseous state for its further capture.
本文介绍了关于将富集尾矿作为原料混合物的一个组分进行处理以获得水泥熟料并同时蒸馏锌的研究。使用芬兰奥托昆普冶金公司开发的软件应用程序“HSC Chemistry 6”在600 - 1600°C的温度范围内进行了热力学研究。研究结果表明，锌有助于强化水泥熟料的矿物形成。具体而言，发现贝利特在990.7至1500°C的温度范围内形成是可能的，吉布斯自由能值分别为 -0.01和 -323.8 kJ（比标准过程优 -11.4 kJ）；阿利特在982.9至1500°C的温度范围内形成是可能的，吉布斯自由能值分别为 -0.05和 -402.1 kJ（比标准过程优 -11.4 kJ）；铝酸三钙在600°C（ΔG = -893.8 kJ）至1500°C（ΔG = -1899.3 kJ）的温度范围内热力学上是可能形成的（比标准过程优 -1570.1 kJ）；铁铝酸四钙在600°C（ΔG = -898.9 kJ）至1500°C（ΔG = -1959.3 kJ）的温度范围内形成是可能的（比标准过程优 -1570.2 kJ），同时锌蒸馏成气态以便进一步捕获。
