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2. A treated ore containing inert solid gangue and copper sulfate (CuSO4) is to be leached in a countercurrent multistage extractor using pure water to leach the CuSo The solid charge rate per hour consists of 9,000 kg of inert gangue (B), 1,200 kg of CuSOs (solute A) and 400 kg of water (C). The exit wash solution is flowing at 100 kg/hour and it contains 92 wt% water and 8 wt% Cuso.. A total of 97% of the Cuso, in the inlet ore is to be recovered. The underflow is constant at N- 0.5kg inert gangue solid/kg aqueous solution Determine the number of stages required. Use the attached graph paper to determine the stages. Final answers: 6 stages, N.--0.69, Xu-.0.0028, N-0.28%,-0.037
engineering   Chemical-Engineering   
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Answer #1

Answer Given The solid chonge -ote pen hos consist s of 9,๐๐๐ kg of inert gangue(8) hen of cusouCsalute A) and uso and 10o The esi uash soluhion s loi oo kg lhx and contains gut , A Total of . of Numbo f s 1000 => 0,0869

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Answer #2
No. of stages=6 ; Overflow flowrate is 14250kg/h ; Underflow flowrate is 20,000kg/h
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