Design of Experiments: Model Development and Optimization of the Cold Crystallization Process in Potash Production

This study aims to optimize the crystallizer operation in a potash production facility at Qinghai Salt Lake by applying the DOE methodology in conjunction with specific experimental data. The objective is to increase production efficiency and product quality. The analysis begins by examining the current state of potash production, highlighting the industry's challenges in improving efficiency, reducing costs, and minimizing environmental impact. Multiple key parameters of the crystallizer process were investigated, including temperature, pressure, agitation speed, and raw material composition.Through multiple rounds of DOE experiments, the critical factors significantly influencing crystallization performance were identified. A corresponding mathematical model was developed and validated. On the basis of this model, optimized operating conditions were proposed to increase the potash crystallization yield while reducing energy consumption and production costs. The advantages and limitations of employing the DOE approach in this context are thoroughly discussed, along with potential directions for future research.