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HYDROMETALLURGICAL TREATMENT OF E-SCRAP

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HYDROMETALLURGICAL TREATMENT OF E-SCRAP ( hydrometallurgical-treatment-e-scrap )

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Moreover, the process plant crew works three 8-hour shifts per day 7 days per week to cover the continuous recycling process. The manpower scheme is given in Table 8.4. The recycling plant requires one plant superintendent, two metallurgists, one mill general foreman, twelve maintenance operators, eight employees in the assay laboratory, as well as 26 plant operators. In sum, the plant requires 50 personnel. Table 8.5 illustrates the estimated operating cost. Reagent costs account for nearly 70% of the total operating cost. It is also found that the cost for leaching reagents, bromine and sodium bromide, constitutes nearly 80% of the total reagent cost. #. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table 8.3 Total capital Capital cost, costs $ Factor 1.43 0.25 0.1 0.4 0.05 0.05 0.35 0.3 0.075 0.12 Expense Total purchased equipment cost Total installed equipment cost Process piping Instrumentation Building and site development Auxiliaries Outside lines Total physical plant costs Engineering and construction Contingencies Size factor Fixed capital costs Working capital costs Capital costs (rounded) 4,627,124 6,616,787 1,654,197 661,679 2,646,715 330,839 330,839 12,241,057 4,284,370 3,672,317 918,079 21,115,823 2,533,899 23,700,000 Factored capital cost Item 1 multiplied by 1.43 Item 2 multiplied by 0.25 Item 2 multiplied by 0.1 Item 2 multiplied by 0.4 Item 2 multiplied by 0.05 Item 2 multiplied by 0.05 Sum of (2+3+4+5+6+7) Item 8 multiplied by 0.35 Item 8 multiplied by 0.3 Item 8 multiplied by 0.075 Sum of (8+9+10+11) Item 12 multiplied by 0.12 Sum of (12+13) 8.2.4 Revenue and Sensitivity Analysis In order to determine the estimated revenue, it was assumed that the products (gold, silver, palladium, copper, tin, lead, zinc and nickel) produced were commodity grade, and the prices of metals were taken from InvestmentMine on December 1st, 2017. In the revenue calculation, the extraction efficiency was based on Table 6.2 (page 76). Table 8.6 illustrates the estimated daily revenue. It is obvious that the estimated operating cost is significantly higher than the estimated 109

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