Meyer, Ewald JonathanCraig, Ian Keith2010-07-132010-07-132010-05Meyer, E.J., Craig, I.K. The development of dynamic models for a dense medium separation circuit in coal beneficiation. Miner. Eng. (2010), doi:10.1016/j.mineng.2010.05.0200892-687510.1016/j.mineng.2010.05.020http://hdl.handle.net/2263/14432Often the most difficult step in establishing a control system is the development of a suitable dynamic process model. As such a model is not available elsewhere, a first principle dynamic mathematical model was developed for a coal dense medium separation circuit. Each unit operation was modelled individually and then integrated together to form a complete non-linear state–space model for the circuit. This model was used to simulate the process and it was validated using real process data derived from a plant experiment. When developing models from first principles, it is necessary to estimate the model parameters. These parameters, specifically for non-linear state–space relationships, require a unique solution. A parameter identifiability method was used to show that the non-linear dynamic models developed have unique parameters for a specific set of input–output data.enElsevierDense medium separationCoal beneficiationDynamic modellingSimulationParameter identifiabilityOre-dressing -- Mathematical modelsProcess control -- Mathematical modelsDynamic programmingCoal preparation -- Mathematical modelsCoal washing -- Mathematical modelsPostprint Article