Component Content Soft-Sensor Based on Adaptive Fuzzy System in Rare-Earth Countercurrent Extraction Process

In this paper, fusion of the mechanism modeling and the fuzzy modeling, a component content soft-sensor, which is composed of the equilibrium calculation model for multi-component rare earth extraction and the error compensation model of fuzzy system, is proposed to solve the problem that the component content in countercurrent rare-earth extraction process is hardly measured on line. An industry experiment in the extraction Y process by HAB using this hybrid soft-sensor proves its effectiveness.