2026-10-12T23:02:45Z https://www.scidb.cn/oai

10.57760/sciencedb.38844 2026-06-08T11:36:01Z

2026-06-08 DTB-Inspired Crystallizer Flow Optimization via Vortex Regulation: Li2CO3 Quality &Mixing Efficiency doi:10.57760/sciencedb.38844 en To address poor particle size uniformity, unstable yield, and low reproducibility in Li2CO3 reactive crystallization from salt lake brine, this study optimizes a draft-tube-baffle (DTB) -inspired crystallizer by tuning its internal flow field. Using CFD simulations and experiments, six adjustable parameters were evaluated. Sensitivity analysis shows rotational speed has the highest energy sensitivity (324%), while agitator and draft tube heights are critical for flow efficiency (>158% sensitivity). Under optimized conditions, mixing time drops to 8.8 s, specific mixing energy to 4.55 kJ·m⁻³, saving 79.6% energy versus conventional operation. Crystallization tests confirm the optimized flow eliminates dead zones, yielding Li2CO3 with ≥98.18% purity, <1.4% spatial purity variation, uniform morphology, and narrow size distribution (Span < 1.0). This work provides a lab-scale basis for industrial DTB optimization, though scale‑up validation is required. DTB crystallizer; CFD simulation; Li2CO3 crystallization; Flow field optimization; Mixing efficiency Xujie Shi Yanfang Ma Xin Liu Yanlin Li Xinqiao Shi Zhenhua Cui Haiping Zhao EMBARGO https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank