ABSTRACT The amount of discarded plastic-containing materials is increasing, and one option to help with this issue is to use these materials in bath smelting processes. The injection of plastic-containing materials to partially substitute coal in zinc-fuming processes has been studied in an industrial trial at Boliden–Rönnskär smelter. To evaluate the potential of plastic-containing materials, thermodynamic calculations were performed in this study. In the first step, a thermodynamic calculation was performed for trials with only coal injection, and then this calculation was applied to trials with the co-injection of plastic materials. The thermodynamic calculation shows that not all the injected coal participates in the reactions within the slag. Similarly, the calculation with the co-injection of plastic-containing materials shows that different amounts of each plastic material participate in the reactions within the slag bath.

中文翻译：

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评估含塑料材料作为替代还原剂的潜力

摘要 废弃的含塑料材料的数量正在增加，解决这一问题的一种选择是在熔池熔炼过程中使用这些材料。在 Boliden–Rönnskär 冶炼厂的一项工业试验中，研究了在锌熏制过程中注入含塑料材料以部分替代煤。为了评估含塑料材料的潜力，本研究进行了热力学计算。第一步，对仅注入煤的试验进行热力学计算，然后将该计算应用于共注入塑料材料的试验。热力学计算表明，并非所有注入的煤都参与炉渣内的反应。相似地，