Magnesium-Doped Manganese Oxide with Lithium Ion-Sieve Property: Lithium Adsorption from Salt Lake Brine
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- Chitrakar Ramesh
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Makita Yoji
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Ooi Kenta
- National Institute of Advanced Industrial Science and Technology (AIST)
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- Sonoda Akinari
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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Magnesium-doped lithium manganese oxides LimMgxMnIIIyMnIVzO4 (0 < x ≤ 0.5) with cubic spinel structure were synthesized by a coprecipitation method followed by calcination at 450 °C in air. Protonated samples were obtained after treatment with HCl solution. Chemical stability is very important for lithium uptake in industry. We used 0.5 M HCl for desorption of lithium, then dissolution of Mn decreased from 5.8 wt % for a sample without Mg to 1.0 wt % for a Mg-doped sample (Mg/Mn = 0.33). Raw brine was collected from the Salars de Uyuni, Bolivia. The effects of magnesium-doping on lithium adsorptive properties of the protonated samples in NaHCO3 containing brine were studied by a batch method. The results showed that lithium adsorptive capacity and chemical stability of the protonated samples increased with increase in Mg/Mn ratio. The regeneration of the sample with Mg/Mn = 0.33 up to 10 cycles showed good performance with lithium adsorptive capacity of 23–25 mg g−1 at pH 6.6, and the dissolution of manganese ca. 0.25 wt % Mn.
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 86 (7), 850-855, 2013
公益社団法人 日本化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679120244608
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- NII論文ID
- 10031183249
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- NII書誌ID
- AA00580132
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- COI
- 1:CAS:528:DC%2BC3sXht1ClsbrK
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- ISSN
- 13480634
- 00092673
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- NDL書誌ID
- 024672035
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可