Unformatted text preview: pre-concentrate diamonds from the host rock made up primarily of quartz and kaolinite. The following information is available about the diamond ore to be processed by gravity separation with the use of a heavy liquid. SG Amount of ore with a given SG value [kg] 2.6 15 2.8 25 3.0 25 3.2 25 3.5 10 The density of diamonds is 3.5 g/cm 3 , the density of quartz is 2.6 g/cm 3 , and the density of kaolinite is also 2.6 g/cm 3 . Based on the results answer the following questions: a) what is the total mass (kg) of diamonds in the ore ? b) what is the content (mass %) of diamonds in the material with SG = 3.2, c) what density should the heavy liquid have in order to recover at least 85% of the total mass of diamonds in the sinking (heavy) fraction ? d) what will be the content (mass %) of diamonds in such a concentrate if we use a liquid with a density of 2.9 ?...
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This note was uploaded on 11/14/2010 for the course APSC 150 taught by Professor Muhan during the Spring '10 term at Wooster.
- Spring '10