Urea–Ammonium Nitrate Aqueous Solutions Containing Cu Micronutrient Obtained from Cable Manufacturing Solid Waste

In this work, sustainable metal recovery from waste and conversion into Cu-micronutrient-containing N fertilizers was developed utilizing the HNO3 extraction method. For this purpose, solubility diagrams, i.e., polytherms, were constructed of the ternary CO­(NH2)2-Cu­(NO3)2-H2O and NH4NO3-Cu­(NO3)2-...

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Bibliographic Details
Published in:ACS sustainable chemistry & engineering 2015-07, Vol.3 (7), p.1544-1550
Main Authors: Baltrusaitis, J, Sviklas, A.M
Format: Article
Language:English
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Summary:In this work, sustainable metal recovery from waste and conversion into Cu-micronutrient-containing N fertilizers was developed utilizing the HNO3 extraction method. For this purpose, solubility diagrams, i.e., polytherms, were constructed of the ternary CO­(NH2)2-Cu­(NO3)2-H2O and NH4NO3-Cu­(NO3)2-H2O systems to determine the corresponding phase equilibria and solid material chemical composition. Copper extraction in the form of water-soluble Cu­(NO3)2 was performed from the industrial Cu cable manufacturing waste, using HNO3 concentrations relevant to the industrial conditions (56–58%) at a moderate temperature of 60 °C. Waste dissolution in aqueous NH4NO3 solutions resulted in only partial dissolution of
ISSN:2168-0485
2168-0485
DOI:10.1021/acssuschemeng.5b00241