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Conference Proceedings

Green Processing 2002 HC

Conference Proceedings

Green Processing 2002 HC

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Life Cycle Assessment of Process Options for Copper Production

The selection of the optimum process route for a new project has traditionally consisted of investigating existing options and ranking them in terms of cost, technical risk and environmental acceptability. With the current focus on sustainable development other factors now need to be considered. Life Cycle Assessment (LCA) of the process options can be used to extend the assessment in terms of their potential for earning renewable energy credits and in judging their ability to achieve greenhouse gas emission reductions. A rigorous life cycle assessment is demanding in terms of setting the baseline for comparisons and evaluating the elements that make up the emission profiles of the process options. However, a simplified LCA can provide a useful tool for comparing different process options. This approach can be combined with traditional assessment criteria to rank the options available to the project. GRD Minproc has been intimately involved in executing LCA calculations for different municipal waste treatment options. This paper applies a similar LCA methodology to investigate the greenhouse gas implications for different options for copper processing. The process options considered are:concentrator - sale of concentrate to smelter,concentrator - on-site mini smelter, and concentrator - leach SX/EW.The paper then goes on to consider the operating cost implications that could arise with the introduction of carbon taxes or carbon credits and how these might impact on the future choice of flowsheet.
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  • Published: 2002
  • PDF Size: 0.879 Mb.
  • Unique ID: P200204013

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