Lithium recovery from lepidolite roasted with potassium compounds

Su, Hui; Ju, Jiaying; Zhang, Jian; Yi, Aifei; Lei, Ze; Wang, Lina; Zhu, Zhaowu; Qi, Tao

doi:10.1016/j.mineng.2019.106087

Cited by 29 publications

(12 citation statements)

References 24 publications

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“…It is similar to the results of [1] that roasted lepidolite will produce the same type of compounds that are lepidolite and albite. On the other hand, the XRD patterns in this study differ from those in [3] because the peak of lepidolite still appears in this study when using 1.5:1 (g/g) Na 2 SO 4 /mica schist. On the other hand, in [3], the peak of lepidolite disappeared when using 1.5:1 (g/g) K 2 SO 4 /ore.…”

Section: Discussion Of Experimental Resultscontrasting

confidence: 72%

“…This study used the roasting process with three different potassium compounds, water leaching at 90 °С for 3 hours and acid leaching with different concentrations using H 2 SO 4 at 40 °С for 2 hours. This study got 92.78 % of lithium extraction using K 2 SO 4 mixed with KOH as additives at 900 °С for 2 hours in the roasting process, water leaching at 90 °С for 3 hours and acid leaching while the that has a theoretical formula of KLi 2 AlSi 4 O 10 (F,OH) 2 and comprises 3.0-7.7 wt % Li 2 O [3,6]. Sulfate acid and lime methods are the two most important processes for lithium extraction from lepidolite [1].…”

Section: Introductionmentioning

confidence: 99%

“…This is caused by upcoming hybrid vehicles and portable electronic devices, which use lithium batteries, developed rapidly [2]. Brine water is the primary source of lithium because it contains approximately 0.1 % Li, characterized by large reserves, low-cost production and simple processing [2,3]. However, to fulfill the demand for lithium, which is predicted to increase sharply, another lithium source is urgently needed.…”

Section: Introductionmentioning

confidence: 99%

“…The paper [3] presents the results of research about lithium recovery from lepidolite roasted with potassium compounds. The effect of different types of additives, additive/ ore mass ratios, roasting temperatures, roasting time and pH of leaching solutions on the lithium extraction process is shown.…”

Section: Introductionmentioning

confidence: 99%

“…Besides that, 81 % Li recovery was achieved from a research about lithium recovery from lepidolite (1.55 wt % Li) with iron sulfide roasting and water leaching, which has been done in [7]. The paper [3] carried out a research about lithium recovery from lepidolite concentrate (4.59 wt % Li 2 O), roasted with three different potassium compounds followed by water leaching and got 92.78 % Li extraction. Unfortunately, those studies only used water as a leaching agent while one of the most important processes to extract lithium from lepidolite is sulfate acid.…”

Section: Introductionmentioning

confidence: 99%

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The use of mica schist from Indonesia as raw material for lithium extraction process using sulfate roasting and acid leaching

Natasha

Lalasari

Andriyah

et al. 2021

EEJET

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Lithium minerals become a sub-economic raw material for lithium production to fulfill the lithium demand. This study is about lithium extraction from mica schist using the roasting and leaching processes. The mica schist located in Kebumen, Indonesia was used to study the phenomena during the lithium extraction process. Sodium sulfate was used as a roasting agent while 0.36 M sulfuric acid was used as a leaching agent. Solid/liquid ratio (1:5, 1:10, 1:15 and 1:20 (g/mL)) and leaching time (30, 60, 90 and 120 minutes) were used as variables in this study. The roasting process was done at 700 °С for 40 minutes while the leaching process was done at 70 °С and 350 rpm. The ratio of additive and mica schist was 1.5:1 (g/g). XRD, ICP-OES, and SEM were used to observe the formed compounds, chemical composition and morphology of the materials. HighScore Plus (HSP) was used to interpret the content of each compound in mica schist, roasted mica schist, and residue. ICP analysis confirmed that the mica schist contains 45.28 ppm of lithium. It is supported by XRD that lithium exists in mica schist as lepidolite (KLi2AlSi4O10(F,OH)2). Sulfate roasting did not affect the type of lepidolite but the lepidolite reactivity against the chemical agent. SEM analysis shows that the roasting process reduced the average particle size from 32.17 to 27.16 µm. ICP analysis of roasted mica schist shows that lithium concentration was reduced from 45.28 to 1.27 ppm. The optimum result from this study was 97.66 % extraction of lithium while solid/liquid ratio was 1:5 (g/ml) and leaching time was 30 minutes. HSP shows that lepidolite contents in initial mica schist, roasted mica schist and residue were 60.6; 24.3 and 18.7 %, respectively. Lithium concentration in the residue according to ICP analysis is 1.06 ppm.

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Section: Discussion Of Experimental Resultscontrasting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The use of mica schist from Indonesia as raw material for lithium extraction process using sulfate roasting and acid leaching

Natasha

Lalasari

Andriyah

et al. 2021

EEJET

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Preparation of Battery Grade Li₂CO₃ from Defective Product by the Carbonation‐Decomposition Method

Zhou¹

2022

Cryst. Res. Technol.

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Battery grade Li 2 CO 3 is successfully synthesized by the carbonation-decomposition method using defective crude Li 2 CO 3 with the purity of 98.56 wt% containing 5873 ppm SO 4 2− and other impurities such as Na, K, Ca, Fe, and Mg. Filter operation is found to be very important to improve quality of products. The purified Li 2 CO 3 precipitation acquired by filtering the LiHCO 3 solution possesses a higher purity of 99.65 wt% and greater whiteness with lower amounts of SO 4 2− (222.0 ppm) and Fe (6.6 ppm). For further purification, ethylenediaminetetraacetic acid disodium salt is added into the LiHCO 3 solution then Ca and Fe contents in purified Li 2 CO 3 are reduced to 2.9 and 0.7 ppm, respectively. The removal efficiencies obtained for Ca, Fe, and SO 4 2− are of 80.05%, 99.4%, and 97.5%, respectively. The research of reaction kinetics shows that the rate-determining step of the carbonation process is diffusion control and the generated HCO 3 − ions can resist the further dissolution of CO 2 . The theoretical thermal decomposition temperature is 277.10 K by the thermodynamic calculation. SO 4 2− impurity comes from absorbed Na 2 SO 4 and doped Li 2 SO 4 . This work is of great significance to economically and simply treat defective product with high impurity content in the actual Li 2 CO 3 production process.

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Extraction of lithium from the simulated pyrometallurgical slag of spent lithium-ion batteries by binary eutectic molten carbonates

Dang

Chang

Zhou

et al. 2022

Int J Miner Metall Mater

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Lithium recovery from lepidolite roasted with potassium compounds

Cited by 29 publications

References 24 publications

The use of mica schist from Indonesia as raw material for lithium extraction process using sulfate roasting and acid leaching

The use of mica schist from Indonesia as raw material for lithium extraction process using sulfate roasting and acid leaching

Preparation of Battery Grade Li₂CO₃ from Defective Product by the Carbonation‐Decomposition Method

Extraction of lithium from the simulated pyrometallurgical slag of spent lithium-ion batteries by binary eutectic molten carbonates

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Lithium recovery from lepidolite roasted with potassium compounds

Cited by 29 publications

References 24 publications

The use of mica schist from Indonesia as raw material for lithium extraction process using sulfate roasting and acid leaching

The use of mica schist from Indonesia as raw material for lithium extraction process using sulfate roasting and acid leaching

Preparation of Battery Grade Li2CO3 from Defective Product by the Carbonation‐Decomposition Method

Extraction of lithium from the simulated pyrometallurgical slag of spent lithium-ion batteries by binary eutectic molten carbonates

Contact Info

Product

Resources

About

Preparation of Battery Grade Li₂CO₃ from Defective Product by the Carbonation‐Decomposition Method