Abstract
The communication presents an extension of the leaching process of the salt cake earlier developed by the present authors. The process describes the investigations in capturing the ammonia gas evolved by hydrolysis of AlN during aqueous leaching at 373 K (100 °C) by CO2-saturated water. The product, i.e., ammonium bicarbonate which is free of chlorides, is a value-added product and can find application in the fertilizer industry. The present method has the added advantage of fixing CO2 as well.
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The authors are thankful to the Iron and Steel Institute Research Institute Beijing, China, for their help with the chemical analyses. The authors are thankful to Stena Aluminum AB for the supply of salt cake samples. Partial financial support from the University of Science and Technology Beijing, China, is gratefully acknowledged.
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Manuscript submitted September 21, 2012.
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Li, P., Zhang, M., Teng, L. et al. Recycling of Aluminum Salt Cake: Utilization of Evolved Ammonia. Metall Mater Trans B 44, 16–19 (2013). https://doi.org/10.1007/s11663-012-9779-3
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DOI: https://doi.org/10.1007/s11663-012-9779-3