Your consulting firm, Coug-Designs LLC, is in a design competition with Husky In

Question

Your consulting firm, Coug-Designs LLC, is in a design competition with Husky Inc to develop a process to extract a valuable mineral, profitonium (P), from raw ore. The ore is 5 wt% P. You are leading the team that designs and analyzes the first piece of equipment in the process. The mineral is to be leeched from the ore into a caustic solution which is then passed to further purification processes. The client has requested that that your process produce 10 ingots of P per day. An ingot of P is 1.0 kg in mass. Using the following information, calculate the following: 1.) If the raw ore costs exist10.00/kg how much will it cost to feed this process per day? Assume 100% recovery of P from the ore by this process. 2.) If the solution costs exist2.50/10 gal and can leech 10g of P/liter how much will it cost to supply this piece of equipment per day? 3.) What is the yearly raw feed cost for this process? Assume 300 days of operation per calendar year.

Explanation / Answer

P required= 10 kg/day

but there is only 5% of P in ore. Hence ore required= 10/(5/100)= 200 kg

cost of Kg of ore= 10$

hence 200Kg costs =200*10=2000$/day

2. cost of solution = 2.5$ per 10gallon

1 gallon=3.78 L

10gallon =37.8L

L costs = 2.5$/37.8=0.066$

leaching capacity= 10g of P /L

required solution for 10 in gots/day= 10*1000gm/10gm/L = 1000L

cost of solution/day =1000*0.066 =66$

since there are 300 working days in a year

cost of feed/yr= 300*(cost of ore+cost of solution)/day= 300*(66+2000)=619800$

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