Assaying for ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, gold is performed by fire assay. This ancient form of quantitative chemical analysis by which metals are separated and determined in ores and metallurgical products with the aid of heat and dry reagents.
As a starting point, it is assumed that the thickener, which has a thickening area of 40 m², is operating at steady state at point no. 1. If the underflow pumping rate is then dropped from 21.7 to 16.6 m³/day without changing the feed solids rate, a new steady state condition will be established at point no. 2.
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June 10, 2020
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