Lithium recovery by solvent extraction from simulated shale gas produced water – Impact of organic compounds

Lee, Junbeum; Chung, Eunhyea

doi:10.1016/j.apgeochem.2020.104571

Cited by 21 publications

(9 citation statements)

References 28 publications

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“…Since a concentrated Li solution is required for the following extraction phase, it is critical to eliminate Ca 2+ and Mg 2+ beforehand. For instance, Lee et al (2020) [89] examined how n-hexane, n-undecane, and n-hexadecane affect solvent extraction for lithium recovery from shale gas effluent. A two-way process was used due to the much-increased attraction between polyvalence cations and di-(2-ethylhexyl) phosphoric acid.…”

Section: Solvent Extractionmentioning

confidence: 99%

“…Before attempting to extract the lithium resources, this process sought to remove multivalent cations like Ca 2+ . Low Li + concentration, interference from multivalent cations, and the presence of organic compounds are common issues that reduce the effectiveness of lithium recovery utilizing solvent extraction procedures [25,89]. The potential for lithium recovery from water used in shale gas production was studied using solvent extraction with a bifunctional ionic liquid [90].…”

Section: Solvent Extractionmentioning

confidence: 99%

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Reviewing Advanced Treatment of Hydrocarbon-Contaminated Oilfield-Produced Water with Recovery of Lithium

Khatoon,

Raksasat,

et al. 2023

Sustainability

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The global demand for lithium, which is indispensable for electric cars and electrical devices, has increased. Lithium recovery from oilfield-produced water is necessary to meet the growing need for lithium-ion batteries, protect the environment, optimize resource utilization, and cut costs to ensure a successful energy transition. It is useful for keeping water supplies in good condition, adhering to legal requirements, and making the most of technological advances. Oil and gas companies might see an increase in revenue gained through the lithium extraction from generated water due to the recouping of energy costs. Therefore, this review focuses on contamination and treatment strategies for the oilfield-produced water. It includes a discussion of the global lithium trade, a financial analysis of lithium extraction, and a comparison of the various methods currently in use for lithium extraction. It was evaluated that economic considerations should be given priority when selecting environmentally friendly methods for lithium recovery from oilfield-produced water, and hybrid methods, such as adsorption–precipitation systems, may show promising results in this regard. Lastly, future prospects for the lithium industry were also discussed.

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Section: Solvent Extractionmentioning

confidence: 99%

Section: Solvent Extractionmentioning

confidence: 99%

Reviewing Advanced Treatment of Hydrocarbon-Contaminated Oilfield-Produced Water with Recovery of Lithium

Khatoon,

Raksasat,

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…Leaching tests have shown that lithium is quite easily leached from alum shale, but not from shale ash (Åhlgren et al in preparation), which strengthens the suggestion of contact with partly pyrolysed shale or fines for G1 and G3 but possibly also for G4. Lithium has been reported to be found in high concentrations in flowback water after fracking in the Marcellus shale (USA) with median concentrations of 95 mg/L after 14 days (Haluszczak et al 2013) and is considered for recovery (Lee and Chung 2020). These concentrations largely surpass the groundwater in Kvarntorp.…”

Section: Solubility Controlmentioning

confidence: 99%

Groundwater chemistry affected by trace elements (As, Mo, Ni, U and V) from a burning alum shale waste deposit, Kvarntorp, Sweden

Åhlgren

Sjöberg

Allard

et al. 2021

Environ Sci Pollut Res

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Worldwide, black shales and shale waste are known to be a potential source of metals to the environment. This project demonstrates ongoing weathering and evaluates leaching processes at a 100-m-high shale waste deposit closed in the 1960s. Some deep parts of the deposit are still burning with temperatures exceeding 500 °C. To demonstrate ongoing weathering and leaching, analyses of groundwater and solid samples of shale and shale waste have been undertaken. Largest impact on groundwater quality was observed downstream the deposit, where elevated temperatures also indicate a direct impact from the burning waste deposit. Groundwater quality is largely controlled by pH and redox conditions (e.g., for arsenic, nickel, molybdenum, uranium and vanadium), and the mixture of different waste materials, including pyrite (acidic leachates) and carbonates (neutralizing and buffering pH). Analyses of shale waste from the deposit confirm the expected pyrite weathering with high concentrations of iron, nickel and uranium in the leachates. No general time trends could be distinguished for the groundwater quality from the monitoring in 2004–2019. This study has shown that black shale waste deposits can have a complex long-term impact on the surrounding environment.

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“…In a study by Jang et al (2017), two-step liquid extraction was used to selectively extract lithium ions from shale gas produced water. The first step was proposed to remove most of the divalent ions with a low lithium concentration extraction, while the second step was used to extract lithium ions selectively (Lee and Chung, 2020b). Due to a similar chemical composition especially for the cation concentration in geothermal water, the two-step solvent extraction process was used in this research to recover lithium selectively.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Silicate Ions on the Separation of Lithium From Geothermal Fluid

Lee

Chung

2022

Front. Chem. Eng.

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In an enhanced geothermal system (EGS), geothermal energy in rocks with insufficient permeability or fluid saturation can be used by creating artificial geothermal reservoirs. Generally, EGS geothermal fluid contains high concentrations of total dissolved solids that originated from various geochemical reactions between the fluid in the reservoir and the minerals in the rock. For example, the concentration of lithium ions are measured approximately 150 mg/L, and several researchers have focused on the recovery of lithium in the geothermal fluid using various methods, one of which is liquid extraction. Solvent extraction has been used to recover lithium from various sources, and successful recovery efficiency have been attained. However, the geothermal fluid in EGS reservoirs contains high concentrations of SiO2, which might inhibit the selective recovery of lithium. Thus, in this study, two consecutive stages of solvent extraction were used to separate the lithium from the geothermal fluid that contained different concentrations of SiO2 ions. The divalent ions were removed in the first stage, and the lithium ions were extracted effectively in the second stage. The SiO2 inhibits the selective recovery of lithium in the first stage to a greater extent than it does in the second stage. The spectroscopy data shows a decrease of the organic solvents main functional group (P=O & P-O-H) absorbance that reacts with the metal ions of the geothermal water after extraction however the intensity difference was reduced as the SiO2 concentrations increases. Silicate ions can be problematic due to the formation of scaling in EGSs, so controlling its concentration in the geothermal reservoir would be beneficial for the long-term operation of EGSs and for the successful recovery of valuable metal resources from EGS reservoirs.

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Lithium recovery by solvent extraction from simulated shale gas produced water – Impact of organic compounds

Cited by 21 publications

References 28 publications

Reviewing Advanced Treatment of Hydrocarbon-Contaminated Oilfield-Produced Water with Recovery of Lithium

Reviewing Advanced Treatment of Hydrocarbon-Contaminated Oilfield-Produced Water with Recovery of Lithium

Groundwater chemistry affected by trace elements (As, Mo, Ni, U and V) from a burning alum shale waste deposit, Kvarntorp, Sweden

The Effect of Silicate Ions on the Separation of Lithium From Geothermal Fluid

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