Mineral carbonation of red gypsum via pH-swing process: Effect of CO2 pressure on the efficiency and products characteristics
作者： Amin Azdarpour , Mohammad Asadullah , Erfan Mohammadian , Radzuan Junin , Hossein Hamidi
DOI: 10.1016/J.CEJ.2014.11.125
关键词: Aragonite 、 Chemical engineering 、 Carbonate 、 Gypsum 、 Vaterite 、 Calcite 、 Dissolution 、 Carbonation 、 Mineralogy 、 Chemistry 、 Autoclave
摘要: Abstract The objective of this study was to investigate the feasibility indirect carbonation red gypsum through pH swing process. effect CO 2 pressure as one major controlling parameters in process investigated details. dissolution performed using 2 M H SO 4 at 70 °C for 60 min reaction time. regulated NH OH, which also precipitated out impurities from solution. Finally, calcium rich solution poured an autoclave reactor and injected into carbonate precipitation. experimental results showed that Fe, main impurity can be effectively separated prior stage (92–95%). At low Fe while high Ca carbonate. efficiency directly affected by maximum (100%) achieved when 8 bar used. In addition, experiments resulted CaCO 3 production form calcite, aragonite, vaterite with 98% purity.
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Sangwon Park, Jaehong Min, Min-Gu Lee, Hoyong Jo, Jinwon Park, Characteristics of CO2 fixation by chemical conversion to carbonate salts Chemical Engineering Journal. ,vol. 231, pp. 287- 293 ,(2013) , 10.1016/J.CEJ.2013.07.032
A. Sanna, M. Uibu, G. Caramanna, R. Kuusik, M. M. Maroto-Valer, A review of mineral carbonation technologies to sequester CO2 Chemical Society Reviews. ,vol. 43, pp. 8049- 8080 ,(2014) , 10.1039/C4CS00035H
Yi Wai Chiang, Rafael M. Santos, Jan Elsen, Boudewijn Meesschaert, Johan A. Martens, Tom Van Gerven, Towards zero-waste mineral carbon sequestration via two-way valorization of ironmaking slag Chemical Engineering Journal. ,vol. 249, pp. 260- 269 ,(2014) , 10.1016/J.CEJ.2014.03.104
Shouhu Xuan, Mingwei Chen, Lingyun Hao, Wanquan Jiang, Xinglong Gong, Yuan Hu, Zuyao Chen, None, Preparation and characterization of microsized FeCO3, Fe3O4 and Fe2O3 with ellipsoidal morphology Journal of Magnetism and Magnetic Materials. ,vol. 320, pp. 164- 170 ,(2008) , 10.1016/J.JMMM.2007.05.019
Wouter JJ Huijgen, Geert-Jan Witkamp, Rob NJ Comans, Mineral CO2 sequestration by steel slag carbonation. Environmental Science & Technology. ,vol. 39, pp. 9676- 9682 ,(2005) , 10.1021/ES050795F
V. Morales-Flórez, A. Santos, A. Lemus, L. Esquivias, Artificial weathering pools of calcium-rich industrial waste for CO2 sequestration Chemical Engineering Journal. ,vol. 166, pp. 132- 137 ,(2011) , 10.1016/J.CEJ.2010.10.039
SM Pérez-Moreno, MJ Gázquez, JP Bolívar, None, CO2 sequestration by indirect carbonation of artificial gypsum generated in the manufacture of titanium dioxide pigments Chemical Engineering Journal. ,vol. 262, pp. 737- 746 ,(2015) , 10.1016/J.CEJ.2014.10.023
Muhammad Salman, Özlem Cizer, Yiannis Pontikes, Rafael M. Santos, Ruben Snellings, Lucie Vandewalle, Bart Blanpain, Koen Van Balen, Effect of accelerated carbonation on AOD stainless steel slag for its valorisation as a CO2-sequestering construction material Chemical Engineering Journal. ,vol. 246, pp. 39- 52 ,(2014) , 10.1016/J.CEJ.2014.02.051
Abass A. Olajire, CO2 capture and separation technologies for end-of-pipe applications – A review Energy. ,vol. 35, pp. 2610- 2628 ,(2010) , 10.1016/J.ENERGY.2010.02.030
Sebastian Teir, Sanni Eloneva, Carl-Johan Fogelholm, Ron Zevenhoven, Dissolution of steelmaking slags in acetic acid for precipitated calcium carbonate production Energy. ,vol. 32, pp. 528- 539 ,(2007) , 10.1016/J.ENERGY.2006.06.023