"We used a 12" Knelson on a pilot plant operation at Piaba Prospect, Aurizona, Maranhão, Brazil. With one exception, the results showed that the orebody had been consistently under-evaluated, resulting in a mine recovery or minecall factor of 1.8; the exception was in processing laterite, which provided a recovery of 0.95. These results were discussed with Modesto & Rowe, the Brazilian representatives for Knelson. We would not install another pilot plant, even for diamond operations, without a Knelson in the circuit. The company has come a long way since I saw my first Knelson in 1978 or 79. Congratulations."
- Jeremy Bates, Consulting Mining Engineer - Sociedade de Mineração Juruema Ltda., United Kingdom
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