Mineral processing, art of treating crude ores and mineral products in order to separate the valuable minerals from the waste rock, or gangue. It is the first process that most ores undergo after mining in order to provide a more concentrated material for the procedures of extractive metallurgy .
What is advanced process control (APC) Several of the mineral process control systems still rely on simplistic optimization approaches (PIDs, Loops). According to research from the University of Pretoria, more than 75% of Minerals Processing Plants are still using basic control strategies.
The process is identical in principle to the flotation of other minerals. The figure on the right is a simplified version of a Pb/Zn flotation circuit. The main difference in lead/zinc flotation is that zinc is usually depressed while lead (and copper) is floated.