Metalurgija, Vol. 65 No. 3, 2026.
Izvorni znanstveni članak
https://doi.org/10.64486/m.65.3.6
Preparation of Aluminum-Based Lithium Ion Adsorbent Supported on Activated Carbon and its Adsorption Lithium Experiment from Sodium Aluminate Solution
Fanghai Lu
; School of Materials and Energy Engineering, Guizhou Institute of Technology, Guizhou Gui-yang 550003, China
*
Pengwei Pang
; College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
*
Hongyun Chai
; SPIC Zunyi Industrial Development Co., Ltd., Guizhou Zunyi 564300, China
Haijun He
; SPIC Zunyi Industrial Development Co., Ltd., Guizhou Zunyi 564300, China
Zhuangqiang Wei
; SPIC Zunyi Industrial Development Co., Ltd., Guizhou Zunyi 564300, China
Ya Shu
; SPIC Zunyi Industrial Development Co., Ltd., Guizhou Zunyi 564300, China
* Dopisni autor.
Sažetak
Lithium-rich bauxite contains abundant associated lithium oxide resources and represents a largely untapped source of lithium. During the Bayer process, ap-proximately 80 % of lithium enters the sodium aluminate solution. However, re-search on the efficient extraction of lithium from sodium aluminate solutions re-mains limited due to the lack of low-cost and high-efficiency technologies. In this study, a novel activated carbon–supported aluminum-based lithium-ion adsorbent (C-Li/Al-LDHs) was developed, and its lithium adsorption performance in sodium aluminate solution was systematically investigated. The results show that C-Li/Al-LDHs can effectively adsorb lithium from the solution. The adsorption efficiency increased with longer adsorption time, higher adsorbent dosage, elevated adsorption temperature, and higher lithium concentration. The key factors affecting the adsorption process were systematically examined, and a maximum lithium adsorption efficiency of 77.09 % was achieved under optimal conditions: an adsorbent dosage of 15 g/L, an adsorption time of 2 h, a water bath temperature of 70 °C, and a lithium concentration of 80 mg/L.
Ključne riječi
lithium-rich bauxite; sodium aluminate solution; activated carbon–supported alu-minum-based lithium-ion adsorbent; adsorption; lithium recovery
Hrčak ID:
344961
URI
Datum izdavanja:
1.7.2026.
Posjeta: 104 *