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The Modeling and Optimization of Titanium Dioxide Extraction, Case study: The Slag Sample of Blast Furnace | ||
| International Journal of Mining and Geo-Engineering | ||
| دوره 55، شماره 1، شهریور 2021، صفحه 91-96 اصل مقاله (951.98 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2021.263730.594753 | ||
| نویسندگان | ||
| Mohsen Fattahpour* 1؛ Mohammad Noaparast1؛ Ziaedine Shafaei1؛ Golnaz Jozanikohan2؛ Mehdi Gharabaghi1 | ||
| 1School of Mining, College of Engineering, University of Tehran, Tehran 1439957131, Iran | ||
| 2Assistant Professor, Ph.D in Mining Engineering (Mineral Exploration), School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran | ||
| چکیده | ||
| In this research work, the application of the Response Surface Methodology (RSM) and the Central Composite Design (CCD) techniques for modeling and optimization of some of the operating variables on the titanium dioxide extraction were studied. This study was performed, using sodium hydroxide roasting and sulfuric acid leaching. Four main parameters, i.e., leaching temperature, time, liquid to solid ratio, and the concentration of acid, were changed during the experiments. The two parameters of the stirring rate (250 rpm), and the feed size (d80= 106 micrometers) were considered to be constant. Based on the findings, several empirical equations were modeled for the titanium dioxide extraction with the above mentioned parameters. The empirical equations were then individually optimized by employing the quadratic programming to maximize the extraction within the experimental range. In conclusion, the optimum conditions were accordingly obtained at 85°C, 235 minutes, liquid to solid ratio of 15, and the acid concentration of 2.4 M, in which the maximum TiO2 extraction of 81.32% was achieved. | ||
| کلیدواژهها | ||
| Experimental design؛ Central composite design؛ Alkali roasting method؛ Metal Extraction | ||
| مراجع | ||
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