A Fundamental Metric for Metal Recycling Applied to Coated Magnesium

摘要: A fundamental metric for the assessment of recyclability and, hence, sustainability coated magnesium scrap is presented; this combines kinetics and thermodynamics. The recycling process, consisting thermal decoating remelting, was studied by thermogravimetry differential analysis (TG/DTA) experiments thermodynamic simulations. Decoating phenomena are interpreted using kinetic analysis, applying existing reaction models. derived model parameters ln E a /(RT p ) used to characterize process. impact inorganic coating components on remelting quantified exergy. Oxidation entrapment losses, quality material resource depletion caused expressed in exergy units combined into single parameter . Based results, characteristics favorable derived. obtained three-dimensional (3–D) combination A, ), , which represent velocity, ease decoating, materials respectively. metric, therefore, directly links characteristics, design, product design with process technology recyclability, enabling ranking alternatives terms their respective recyclability. Therefore, key idea article use metallurgical theory express postconsumer unique parameters. This should pave way different materials.