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首页> 外文期刊>Environmental Science & Technology >Hybrid Input-Output Approach to Metal Production and Its Application to the Introduction of Lead-Free Solders
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Hybrid Input-Output Approach to Metal Production and Its Application to the Introduction of Lead-Free Solders

机译：金属生产的混合投入-产出方法及其在无铅焊料引入中的应用

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摘要

The production process of metals such as copper, lead, and zinc is characterized by mutual interconnections and interdependence, as well as by the occurrence of a large number of byproducts, which include precious or rare metals, such as gold, silver, bismuth, and indium. On the basis of the framework of waste input-output (WIO), we present a hybrid 10 model that takes full account of the mutual interdependence among the metal production processes and the interdependence between them and all the other production sectors of the economy as well. The combination of a comprehensive representation of the whole national economy and the introduction of process knowledge of metal production allows for a detailed analysis of different materials-use scenarios under the consideration of full supply chain effects. For illustration, a hypothetical case study of the introduction of lead-free solder involving the production of silver as a byproduct of copper and lead smelting processes was developed and implemented using Japanese data. To meet the increased demand for the recovery and recycling of silver resources from end-of-life products, the final destination of metal silver in terms of products and user categories was estimated, and the target components with the highest silver concentration were identified.
机译：金属（例如铜，铅和锌）的生产过程具有相互联系和相互依存以及大量副产物（包括贵金属或稀有金属，例如金，银，铋和锌）的出现的特点。铟。在废物投入产出（WIO）框架的基础上，我们提出了一种混合模型10，该模型充分考虑了金属生产过程之间的相互依赖以及金属生产过程与经济中所有其他生产部门之间的相互依赖。 。全面代表整个国民经济，并引入金属生产过程知识，可以在充分考虑供应链影响的情况下对不同的材料使用场景进行详细分析。为说明起见，使用日本数据开发并实施了一个假设案例研究，该案例研究涉及引入无铅焊料，其中涉及生产作为铜副产品的银和铅冶炼工艺。为了满足从报废产品中回收和回收银资源的需求，估算了金属银在产品和用户类别方面的最终目的地，并确定了银浓度最高的目标成分。

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