Economical Effects of On-line Elemental Analysis Performance on Flotation Control
| Authors: | Remes Antti, Helsinki University of Technology, Finland
Kongas Matti, Outokumpu Technology, Finland
Saloheimo Kari, Outokumpu Technology, Finland
Jämsä-Jounela Sirkka-Liisa, Helsinki University of Technology, Finland |
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| Topic: | 6.2 Mining, Mineral & Metal Processing |
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| Session: | Mineral Processing |
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| Keywords: | Flotation process control, Economical optimization, On-stream analysis, X-ray fluorescence |
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Abstract
The paper studies the control performance of the flotation process as a function of the measurement accuracy and sampling frequency of an on-stream XRF analyzer, using a simple dynamic model. An additional aim is to assess how the economical result of a mineral flotation process depends on the quality of process control based on the on-line elemental assays. The economical performance of the control was studied by calculating the overall net smelter return with various analyzer parameter combinations. The economical performance of the simulated process declines strongly when the sampling cycle is increased.
