Synthesis of H2TiO3–lithium adsorbent loaded on ceramic foams

Zhang, Liyuan; Zhou, Di; Gong, He; Yao, Qianqian; Wang, Fanhou; Zhou, Jiabei

doi:10.1016/j.matlet.2015.01.142

Cited by 50 publications

(12 citation statements)

References 15 publications

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“…However, the diffraction peaks of (À133) and (À206) have not completely disappeared. This behavior is similar to that observed in our previous study, 26 but different from the observation in another study reported by our group.…”

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confidence: 74%

A novel study on preparation of H₂TiO₃–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

et al. 2018

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A peroxy lithium titanate sol was prepared with low-cost and easily available titanyl sulfate as the titanium source, lithium acetate as the lithium source, and aquae hydrogenii dioxidi as the complexing agent using an inorganic precipitation-peptization method. The sol system was aged, centrifugal-washed, dried and calcined to obtain a pure precursor, Li 2 TiO 3 , followed by pickling with hydrochloric acid to obtain the H 2 TiO 3 -lithium adsorbent. The effects of aging time and calcination temperature on the target product were investigated. The results indicate that the sol-system is stable, which is beneficial for loading on a suitable carrier, such as ceramic foams. Centrifugal-washing, instead of vacuum filtration-washing, is conducive to product formation. The most suitable aging time of precursor sol is 24 h and the appropriate calcination temperature is 750 C. The lithium drawn-out ratio of samples synthesized in this condition reaches 89.50% after pickling with 0.2 M hydrochloric acid for 8 h at 70 C. Moreover, the Li + uptake of the adsorbent (adsorption capacity) reaches 29.96 mg g À1 and 33.35 mg g À1 when the adsorption time is 1 h and 8 h, respectively.

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confidence: 74%

A novel study on preparation of H₂TiO₃–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

et al. 2018

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“…These oxides contain a series of chemicals, such as the spinel manganese oxides [29][30][31][32], nanostructure MnO 2 [33]. Inspired by lithium ion sieve, the titanium lithium ionic and lithium iron phosphate (LiFePO 4 ) sieves have also been investigated [34][35][36][37]. These absorbents have been tested for recovery lithium from brine of Qarhan saline lake [38].…”

Section: Lithium Ion Sievementioning

confidence: 99%

Lithium extraction from Chinese salt-lake brines: opportunities, challenges, and future outlook

Song

Nghiem

et al. 2017

Environ. Sci.: Water Res. Technol.

127

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“…Lithium recovery technologies from brines and seawater have been developed in the past two decades, including adsorption, solvent extraction, nanofiltration membranes, precipitation and electrochemical methods, etc. − Among these technologies, the ion-exchange adsorption of lithium ion-sieves with high lithium-ion selectivity from the coexisting cation solution has become a promising candidate for lithium extraction from the low-grade Li + brines with a high Mg/Li ratio. − Both manganese-type lithium ion-sieves (HMO) − and titanium-type lithium ion-sieves (HTO) have been developed successfully. ,− The saturated Li + ion exchange capacity on HMO ion-sieves is higher, and both Li + adsorption and desorption rates also are faster, but there exists the Mn dissolution trouble, and further improvement is still needed. Titanium-type lithium ion-sieves with a stronger Ti–O bond have the advantages of stable structure, good acid resistance, lower Ti dissolution loss, relatively stable Li + adsorption performance, and multiple recycling, being the promising adsorbents for lithium recovery from brines.…”

Section: Introductionmentioning

confidence: 99%

Alkaline Resins Enhancing Li⁺/H⁺ Ion Exchange for Lithium Recovery from Brines Using Granular Titanium-Type Lithium Ion-Sieves

Liu

Zhang

Yao

et al. 2021

Ind. Eng. Chem. Res.

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The mechanism of lithium ion-sieve adsorbing Li+ ions from brines is based on the Li+/H+ ion exchange, where Li+ ions in brines are adsorbed on ion-sieves to displace H+ ions, and the displaced H+ ions are released in brines in turn. If the released H+ ions are accumulated in brines, then brines become acidic, not conducive to Li+ ions adsorption on ion-sieves. Therefore, it is important to regulate the pH value in brines to be more than 7 during the lithium recovery from brines using ion-sieves. Instead of the addition of the traditional ammonia buffer solution, the alkaline anion exchange resins are used to regulate the pH value of brines in this work since the addition of ammonia buffer solution in brines would cause the secondary pollution in Salt Lake with a high ammonia nitrogen emission value. The alkaline anion exchange resins contain the amine functional groups to neutralize the released H + ions in brines that enhance the adsorption performance of lithium ion-sieves. Like ammonia buffer, the amine functional groups of alkaline resins without more free OH– ions in brine will avoid the precipitation of high content of magnesium in brines. Here, seven kinds of alkaline anion exchange resins are used to neutralize the released H+ ions during lithium recovery from brines using homemade granular titanium-type lithium ion-sieves (PVB-HTO ion-sieves). The process intensification for lithium recovery from brine by lithium ion-sieves with the addition of alkaline anion exchange resins is evaluated based on experimental results, and a green lithium recovery technology from brine with a high Mg/Li ratio will be developed.

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Synthesis of H2TiO3–lithium adsorbent loaded on ceramic foams

Cited by 50 publications

References 15 publications

A novel study on preparation of H₂TiO₃–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

A novel study on preparation of H₂TiO₃–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

Lithium extraction from Chinese salt-lake brines: opportunities, challenges, and future outlook

Alkaline Resins Enhancing Li⁺/H⁺ Ion Exchange for Lithium Recovery from Brines Using Granular Titanium-Type Lithium Ion-Sieves

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Synthesis of H2TiO3–lithium adsorbent loaded on ceramic foams

Cited by 50 publications

References 15 publications

A novel study on preparation of H2TiO3–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

A novel study on preparation of H2TiO3–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

Lithium extraction from Chinese salt-lake brines: opportunities, challenges, and future outlook

Alkaline Resins Enhancing Li+/H+ Ion Exchange for Lithium Recovery from Brines Using Granular Titanium-Type Lithium Ion-Sieves

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A novel study on preparation of H₂TiO₃–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

A novel study on preparation of H₂TiO₃–lithium adsorbent with titanyl sulfate as titanium source by inorganic precipitation–peptization method

Alkaline Resins Enhancing Li⁺/H⁺ Ion Exchange for Lithium Recovery from Brines Using Granular Titanium-Type Lithium Ion-Sieves