Synthesis of Selective Sorbent LiCl ⋅ 2Al(OH)3 ⋅ nH2O

Menzheres, L. T.; Ryabtsev, A. D.; Mamylova, E. V.

doi:10.1134/s0040579518050172

Cited by 8 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lithium aluminum layered double hydroxide chlorides (LADH-Cl) have been successfully used as industrial lithium sorbents, supporting a lithium carbonate productivity over decade thousand tons. − Technology based on the LADH-Cl sorbents makes it possible to extract lithium from low grade brine resources, mitigating the lithium pressure at least in this century . For decades, the interaction between LADH-Cl and aqueous lithium ion has been labeled as ”adsorption–desorption”.…”

Section: Introductionmentioning

confidence: 99%

“…Even though it is usually reported as an integer, it is actually an approximation of the experimental determination . In most cases, the determined hydration number is far from the integer, and varies from ∼0 to 3.5. ,,,,− Up until now, when LADH-Cl is used as a lithium sorbent, if the hydration number of LADH-Cl will change, how it changes and to what extent it can change are still blind spots. Second, the Al:Li molar ratio in LADH-Cl is also volatile and varies from ∼2 to 3.5.…”

Section: Introductionmentioning

confidence: 99%

“…The chemical formula of LADH-Cl is usually written as m LiCl·2Al(OH) 3 · n H 2 O, in which the stoichiometric factors m and n have not been constrained. ,− Anhydrous phase LiCl·2Al(OH) 3 and hydrated phases LiCl·2Al(OH) 3 ·H 2 O, LiCl·2Al(OH) 3 ·1.5H 2 O, and LiCl·2Al(OH) 3 ·2H 2 O have been reported as stoichiometric compounds. Their structures have been determined from powder or single crystal diffraction and solid-state magic-angle-spinning NMR (ssNMR) technics. − More extensively, the nonstoichiometric nature of LADH-Cl has been invoked.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phase Chemistry for Hydration Sensitive (De)intercalation of Lithium Aluminum Layered Double Hydroxide Chlorides

Li,

Zhang,

Gao

et al. 2023

ACS Mater. Au

View full text Add to dashboard Cite

Lithium aluminum layered double hydroxide chlorides (LADH-Cl) have been widely used for lithium extraction from brine. Elevation of the performances of LADH-Cl sorbents urgently requires knowledge of the composition−structure−property relationship of LADH-Cl in lithium extraction applications, but these are still unclear. Herein, combining the phase equilibrium experiments, advanced solid characterization methods, and theoretical calculations, we constructed a cyclic work diagram of LADH-Cl for lithium capture from aqueous solution, where the reversible (de)hydration and (de)intercalation induced phase evolution of LADH-Cl dominates the apparent lithium "adsorption−desorption" behavior. It is found that the real active ingredient in LADH-Cl type lithium sorbents is a dihydrated LADH-Cl with an Al:Li molar ratio varying from 2 to 3. This reversible process indicates an ultimate reversible lithium (de)intercalation capacity of ∼10 mg of Li per g of LADH-Cl. Excessive lithium deintercalation results in the phase structure collapse of dihydrated LADH-Cl to form gibbsite. When interacting with a concentrated LiCl aqueous solution, gibbsite is easily converted into lithium saturated intercalated LADH-Cl phases. By further hydration with a diluted LiCl aqueous solution, this phase again converts to the active dihydrated LADH-Cl. In the whole cyclic progress, lithium ions thermodynamically favor staying in the Al−OH octahedral cavities, but the (de)intercalation of lithium has kinetic factors deriving from the variation of the Al−OH hydroxyl orientation. The present results provide fundamental knowledge for the rational design and application of LADH-Cl type lithium sorbents.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phase Chemistry for Hydration Sensitive (De)intercalation of Lithium Aluminum Layered Double Hydroxide Chlorides

Li,

Zhang,

Gao

et al. 2023

ACS Mater. Au

View full text Add to dashboard Cite

show abstract

“…Sorbents obtained based on double compounds of aluminum and lithium LiCl• 2Al(OH) 3 •mH 2 O (DHAL-Cl) have high performance and are stable in brines with low pH [23][24][25][26]. The interaction occurs during the crystallization of DGAL-Cl via an intercalation mechanism with the introduction of Li+ cations and Cl anions into the interlayer space.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Manganese Oxide Sorbent for the Extraction of Lithium from Hydromineral Raw Materials

Karshyga,

Yersaiynova,

Yessengaziyev

et al. 2023

Materials

View full text Add to dashboard Cite

The article presents the research results for the synthesis of inorganic sorbents based on manganese oxide compounds. It shows the results of the lithium sorption from brines with the use of synthesized sorbents. The effect of temperature, the molar ratio of Li/Mn, and the duration for obtaining a lithium-manganese precursor and its acid treatment was studied. The sorption characteristics of the synthesized sorbents were studied. The effect of the ratio of the sorbent mass to the brine volume and the duration of the process on the sorption of lithium from brine were studied. In this case, the sorbent recovery of lithium was ~86%. A kinetic model of the lithium sorption from brine on a synthesized sorbent was determined. The kinetics of the lithium sorption was described by a pseudo-second-order model, which implies limiting the speed of the process due to a chemical reaction.

show abstract

“…Sorbents obtained on the basis of double compounds of aluminum and lithium LiCl•2Al(OH)3•mH2O (DAlH-Cl) and stable in brines with low рН level have high rates [12][13][14][15]. During crystallization of DAlH-Cl, the interaction proceeds by intercalation mechanism with introduction of Li + cations and Cl ¯ anions into interlayer space.…”

Section: Introductionmentioning

confidence: 99%

Processing of Hydro-Mineral Lithium Raw Material of Kazakhstan Using Inorganic Sorbents

Karshigina

Абишева

2021

SSP

View full text Add to dashboard Cite

The article presents the results of studies on recovery of lithium from reservoir brines using both commercial and synthesized aluminum hydroxide and hydrated manganese oxide as sorbents. The research results showed that, when using commercial aluminum hydroxide and synthesized hydrated manganese oxide as sorbents, lithium recovery from brine was 21.8 and 20.1%, respectively. Studies were conducted on lithium chemisorption on freshly precipitated aluminum hydroxide, which was obtained by adding aluminum chloride solution and tri-calcium hydro-aluminate to the brine. Chemisorption of lithium was carried out under the following conditions: T = 50 °C; AlCl3 solution concentration - 120 g/dm3; molar ratio Li/Al = 7; pH equal = 8.0-8.8; holding time with stirring 1 h. The degree of lithium extraction from brine was 71%; lithium capacity of freshly precipitated Al (OH)3 was 5.9 mg/g. During calcareous leaching of lithium-aluminum precipitate, lithium was extracted into a solution by 74.7%.

show abstract

Synthesis of Selective Sorbent LiCl ⋅ 2Al(OH)3 ⋅ nH2O

Cited by 8 publications

References 3 publications

Phase Chemistry for Hydration Sensitive (De)intercalation of Lithium Aluminum Layered Double Hydroxide Chlorides

Phase Chemistry for Hydration Sensitive (De)intercalation of Lithium Aluminum Layered Double Hydroxide Chlorides

Synthesis of Manganese Oxide Sorbent for the Extraction of Lithium from Hydromineral Raw Materials

Processing of Hydro-Mineral Lithium Raw Material of Kazakhstan Using Inorganic Sorbents

Contact Info

Product

Resources

About