Resource Efficiency Evaluation of Pyrometallurgical Solutions …
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pyrometallurgical flowsheets into the current RLE process to decrease or eliminate the generation of iron precipitates are studied and their resource efficiency and
environmental impact are quantified.
Simulation-Based Evaluation of the Resource Efficiency
of the Zinc Production
The first step required to evaluate the resource efficiency of the zinc production is to
have a good overview of the system. This can be done by using the simulation-based
approach developed by Reuter et al. in HSC Sim [9, 10] to quantify the resource
efficiency of metallurgical, recycling, and CE systems [1]. This methodology is
based on the development of simulation models which will provide the required
indicators to evaluate the material recovery and losses, residue production, resource
consumption, and environmental impact of the studied process.
Simulation of the Considered Zinc Production Flowsheets
An integrated RLE-DZS system has been modelled with the simulation platform
HSC Sim (HSC Chemistry 9.9 [11]), whose simulation pane is shown in Fig. 1. This
Fig. 1 HSC Sim pane showing the simulated roast-leach-electrowinning (RLE) flowsheet. The tabs
at the bottom of the simulation pane contain different flowsheets within the complete system (i) zinc
concentrate splitting between RLE and DZS, (ii) RLE flowsheet, (iii) zinc ferrites leaching, and
jarosite precipitation, (iv) electrolyte storage and distribution, (v) DZS flowsheet, and (vi) material
recoveries of the system
353
pyrometallurgical flowsheets into the current RLE process to decrease or eliminate the generation of iron precipitates are studied and their resource efficiency and
environmental impact are quantified.
Simulation-Based Evaluation of the Resource Efficiency
of the Zinc Production
The first step required to evaluate the resource efficiency of the zinc production is to
have a good overview of the system. This can be done by using the simulation-based
approach developed by Reuter et al. in HSC Sim [9, 10] to quantify the resource
efficiency of metallurgical, recycling, and CE systems [1]. This methodology is
based on the development of simulation models which will provide the required
indicators to evaluate the material recovery and losses, residue production, resource
consumption, and environmental impact of the studied process.
Simulation of the Considered Zinc Production Flowsheets
An integrated RLE-DZS system has been modelled with the simulation platform
HSC Sim (HSC Chemistry 9.9 [11]), whose simulation pane is shown in Fig. 1. This
Fig. 1 HSC Sim pane showing the simulated roast-leach-electrowinning (RLE) flowsheet. The tabs
at the bottom of the simulation pane contain different flowsheets within the complete system (i) zinc
concentrate splitting between RLE and DZS, (ii) RLE flowsheet, (iii) zinc ferrites leaching, and
jarosite precipitation, (iv) electrolyte storage and distribution, (v) DZS flowsheet, and (vi) material
recoveries of the system