Synthesis of Li/Al LDH using aluminum and LiOH

Wang, Shan‐Li; Lin, Cheng-Hsien; Yan, Ya-Yi; Wang, Ming K.

doi:10.1016/j.clay.2013.02.001

Cited by 45 publications

(22 citation statements)

References 37 publications

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“…Crystalline aluminum trihydroxides (Al(OH) 3 ), such as gibbsite, bayerite, and nordstrandite, can form layered intercalation matrices with lithium [108,109,115,116]. Amorphous Al(OH) 3 can be reacted with lithium chloride at elevated temperature to form crystalline LiCl•2Al(OH) 3 , which can adsorb lithium ion from lithium-containing brines [86,87].…”

Section: Aluminum Hydroxidesmentioning

confidence: 99%

“…Burba [87] showed that, under an appropriate range of initial concentrations and temperatures, crystalline hydrous aluminum oxides (AlOx) can be reacted directly with lithium salts to form crystalline lithium salt aluminates. Cations (lithium, magnesium, and transition metals) lie in the octahedral voids of the AlOH layers (Figure 11) [108,109,116]. As discussed in other sections, AlOH can be added to zeolite, resins, and other materials to make lithium sorbents [6,[84][85][86][87][117][118][119].…”

Section: Aluminum Hydroxidesmentioning

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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Section: Aluminum Hydroxidesmentioning

confidence: 99%

Section: Aluminum Hydroxidesmentioning

confidence: 99%

Technology for the Recovery of Lithium from Geothermal Brines

2021

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“…To disperse catalytic nanoparticles at high density on a surface with a large area, a Li-Al-CO 3 LDH thin film was formed on the lathe waste surface using a method of electrodeposition that can be found in an earlier study by the authors, in which a Li-Al LDH coating was prepared on an Mg alloy substrate [15]. Aluminum foil and lithium hydroxide were used to prepare Al 3+ -and Li + -containing solution as the electrolyte for electrodeposition [25]. Aqueous solutions of Ni or Cu ions that simulate the industrial wastewater were used as sources of Ni and Cu for the formation of metallic nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Catalytic Ni/Cu Nanoparticles from Simulated Wastewater on Li–Al Mixed Metal Oxides for a Two-Stage Catalytic Process in Ethanol Steam Reforming: Catalytic Performance and Coke Properties

et al. 2021

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This work recovered Ni or Cu cations from simulated electroplating wastewater to synthesize Ni/Cu nano-catalysts for H2 generation by ethanol steam reforming (ESR). Aluminum lathe waste was used as a framework to prepare the structured catalyst. Li–Al–CO3 layered double hydroxide (LDH) was electrodeposited on the surface of the framework. The LDH was in a platelet-like structure, working as a support for the formation of the precursor of the metal catalysts. The catalytic performance and the coke properties of a 6Cu_6Ni two-stage catalyst configuration herein used for ESR catalytic reaction were studied. The Cu–Ni two-stage catalyst configuration (6Cu_6Ni) yielded more H2 (~10%) than that by using the Ni-based catalyst (6Ni) only. The 6Cu_6Ni catalyst configuration also resulted in a relatively stable H2 generation rate vs. time, with nearly no decline during the 5-h reaction. Through the pre-reaction of ethanol-steam mixture with Cu/LiAlO2 catalyst, the Ni/LiAlO2 catalyst in the 6Cu_6Ni catalyst configuration could steadily decompose acetaldehyde, and rare acetate groups, which would evolve condensed coke, were formed. The Ni nanoparticles were observed to be lifted and separated by the carbon filaments from the support and had no indication of sintering, contributing to the bare deactivation of the Ni/LiAlO2 catalyst in 6Cu_6Ni.

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“…The lithium ions entered the vacancies, which made the layer positively charged. The anions were intercalated into the interlayer to keep charge balance [21,22,23]. The structural model of chlorine-ion-intercalated LiAl-LDHs is depicted in Scheme 1.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Lithium Recovery from Pre-Synthesized Chlorine-Ion-Intercalated LiAl-Layered Double Hydroxides via a Mild Solution Chemistry Process

et al. 2019

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Lithium extraction from salt lake brine is critical for satisfying the increasing demand of a variety of lithium products. We report lithium recovery from pre-synthesized LiAl-layered double hydroxides (LDHs) via a mild solution reaction. Lithium ions were released from solid LiAl-LDHs to obtain a lithium-bearing solution. The LiAl-LDHs phase was gradually transformed into a predominantly Al(OH)3 phase with lithium recovery to the aqueous solution. The lithium recovery percentage and the concentration of the lithium-bearing solution were dependent on the crystallinity of LiAl-LDHs, the initial concentration of the LiAl-LDHs-1 slurry, the reaction temperature, and the reaction time. Under optimized conditions, the lithium recovery reached 86.2% and the Li+ concentration in the filtrate is 141.6 mg/L. Interestingly, no aluminum ions were detected in the filtrate after solid–liquid separation with high crystallinity LiAl-LDHs, which indicated the complete separation of lithium and aluminum in the liquid and solid phases, respectively. The 27Al NMR spectra of the solid products indicate that lithium recovery from the lattice vacancies of LiAl-LDHs affects the AlO6 coordination in an octahedral configuration of the ordered Al(OH)3 phase. The XPS O 1s spectra show that the Oad peak intensity increased and the OL peak intensity decreased with the increasing lithium recovery, which indicated that the Al-OH bond was gradually formed and the metal–oxygen–metal bond was broken.

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Synthesis of Li/Al LDH using aluminum and LiOH

Cited by 45 publications

References 37 publications

Technology for the Recovery of Lithium from Geothermal Brines

Technology for the Recovery of Lithium from Geothermal Brines

Synthesis of Catalytic Ni/Cu Nanoparticles from Simulated Wastewater on Li–Al Mixed Metal Oxides for a Two-Stage Catalytic Process in Ethanol Steam Reforming: Catalytic Performance and Coke Properties

Highly Efficient Lithium Recovery from Pre-Synthesized Chlorine-Ion-Intercalated LiAl-Layered Double Hydroxides via a Mild Solution Chemistry Process

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