Efficient extraction of lithium, rubidium, cesium and synchronized fluorine elimination from low-grade ore based on compound salt synergistic roasting

Zhenzhou Wang

doi:10.1016/j.jece.2026.124568

Efficient extraction of lithium, rubidium, cesium and synchronized fluorine elimination from low-grade ore based on compound salt synergistic roasting

2026-08-11

0

PRE

AI

Z

Zhenzhou Wang

C

Chengrui He

C

Chaoge Ding

Y

Yanfeng You

X

Xuan Wang

T

Tian Liu

G

Guang Yang *

L

Li Yao

D

Dongdong Wei

L

Liming Yang *

X

Xubiao Luo *

DOI：10.1016/j.jece.2026.124568

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• An innovative Na/Ca compound salt roasting system was developed for cleaner lepidolite valorization. • Simultaneous high-efficiency Li extraction (98.9%) and in-situ F fixation (90.5%) were achieved. • Formation of CaF2 accelerates lattice destruction and thermodynamically drives efficient Li release. • Techno-economic analysis confirms the process feasibility with low raw material costs.

Efficient extraction of lithium, rubidium, cesium and synchronized fluorine elimination from low-grade ore based on compound salt synergistic roasting

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