Question 2 [20 marks) The feasibility study by Northern Graphite Corporation for the re-start of Okanjande/Okorusu graph

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Question 2 20 Marks The Feasibility Study By Northern Graphite Corporation For The Re Start Of Okanjande Okorusu Graph 1 (89.7 KiB) Viewed 53 times

Question 2 [20 marks) The feasibility study by Northern Graphite Corporation for the re-start of Okanjande/Okorusu graphite producing operation indicated that Imerys did not follow Rio Tinto pilot plant design and they re-used old equipment which was unsuitable/unreliable. The design engineers are currently busy with mass balances around a hydrocyclone. The hydrocyclone overflow stream has a mass flowrate of 35t/h of solids and a pulp density of 1.35t/m3. The ore solid density was found to be 3.20t/m and the feed stream percentage solids is 35% while the pulp density of the underflow stream is 1.28t/m”. You were given an opportunity to demonstrate that you are competent when it comes to mass balance around a hydrocyclone. To test if you are competent at mass balance around a hydrocyclone the design engineers requested you to determine the volumetric flowrate (in m²/h) for the feed and underflow streams by applying two methods of your choice to each stream. Obviously, your answers should be the same for both methods for each stream. Also give a sketch of the problem.