Selectivity of new inorganic ion–exchangers based on oxides of titanum and manganese at sorpion of lithium from aqueous media

Chaban, M. O.; Rozhdestvenskaya, L. M.; Palchik, A.V.; Belyakov, V. N.

doi:10.3103/s1063455x16010021

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…Investigations showed that the selective adsorption capacity of MnOx was due the crystalline structure acting as a molecular sieve that allowed lithium ions to enter into the crystalline lattice, but sterically hindered the entrance of other ions (e.g., [80,[103][104][105][106][107]). A similar steric hindrance mechanism has been proposed for intercalation of lithium ions in TiOx and AlOH crystals as well (e.g., [80,[99][100][101][108][109][110][111][112][113][114]).…”

Section: Inorganic Molecular Sieve Ion-exchange Adsorbentsmentioning

confidence: 53%

“…Ooi, Miyai and co-workers first proposed the use of manganese oxides (MnOx) as sorbents for the recovery of lithium from seawater [96,97]. TiOx materials are used in lithium-ion batteries and their application to the recovery of lithium from brines has been proposed more recently [80,[98][99][100][101]. The properties of inorganic crystalline sorbents have been scientifically investigated and efforts are underway to apply these solid sorbents in engineered systems to the selective recovery of lithium from natural and industrial fluids, including geothermal brines [102].…”

Section: Inorganic Molecular Sieve Ion-exchange Adsorbentsmentioning

confidence: 99%

“…Manganese oxides show ion-sieve properties and the spinel-type ion-sieves have effective pore radii of approximately 0.7 Å (Figure 14), which makes it selective for adsorption of lithium [139]. Materials that are commonly used as templates for MnOx designed for lithium adsorption include lithium and magnesium; however, other metals may be used [99,101,104,140,141]. Miyai et al [97] investigated HMnO(Mg) for the sorption of lithium from seawater.…”

Section: Aluminum Hydroxidesmentioning

confidence: 99%

“…Shi et al [111] demonstrated the synthesis of TiOx sorbents with a maximum capacity of 37 mg/g. Studies have demonstrated that TiOx were at least as effective as MnOx for the sorption of lithium ions from solution [80,94,99,100]. Spinel TiOx are more acid stable, potentially conferring robustness during cycling between sorption and stripping processes [80].…”

Section: Titanium Oxidesmentioning

confidence: 99%

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Technology for the Recovery of Lithium from Geothermal Brines

2021

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Lithium is the principal component of high-energy-density batteries and is a critical material necessary for the economy and security of the United States. Brines from geothermal power production have been identified as a potential domestic source of lithium; however, lithium-rich geothermal brines are characterized by complex chemistry, high salinity, and high temperatures, which pose unique challenges for economic lithium extraction. The purpose of this paper is to examine and analyze direct lithium extraction technology in the context of developing sustainable lithium production from geothermal brines. In this paper, we are focused on the challenges of applying direct lithium extraction technology to geothermal brines; however, applications to other brines (such as coproduced brines from oil wells) are considered. The most technologically advanced approach for direct lithium extraction from geothermal brines is adsorption of lithium using inorganic sorbents. Other separation processes include extraction using solvents, sorption on organic resin and polymer materials, chemical precipitation, and membrane-dependent processes. The Salton Sea geothermal field in California has been identified as the most significant lithium brine resource in the US and past and present efforts to extract lithium and other minerals from Salton Sea brines were evaluated. Extraction of lithium with inorganic molecular sieve ion-exchange sorbents appears to offer the most immediate pathway for the development of economic lithium extraction and recovery from Salton Sea brines. Other promising technologies are still in early development, but may one day offer a second generation of methods for direct, selective lithium extraction. Initial studies have demonstrated that lithium extraction and recovery from geothermal brines are technically feasible, but challenges still remain in developing an economically and environmentally sustainable process at scale.

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