Welcome to the second issue of Outotec's digital customer newsletter, Minerva. The newsletter delivers you insights, latest news and technical advancements from the world of minerals processing. This issue will introduce a flotation retrofit project from Brazil. We also discuss the challenges and solutions in fine grinding, concentrate filtration and mass balancing of concentrator data. Furthermore, we also introduce how minerals processing students in Finland have benefited from Virtual Experience training. In the employee spotlight we introduce you Mr Luis Rudolphy.