A lithium selective adsorption composite by coating adsorbent on PVC plate using epoxy-silica hybrid binder
| Autor: | Kang-Sup Chung, Taegong Ryu, Junho Shin, Jae Chun Ryu, Young Ho Kim, Dong-Hee Lee |
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| Rok vydání: | 2019 |
| Předmět: |
Composite number
0211 other engineering and technologies Metals and Alloys chemistry.chemical_element 02 engineering and technology Epoxy engineering.material Industrial and Manufacturing Engineering Polyvinyl chloride chemistry.chemical_compound Adsorption 020401 chemical engineering chemistry Coating Chemical engineering visual_art Selective adsorption Materials Chemistry engineering visual_art.visual_art_medium Lithium Seawater 0204 chemical engineering 021102 mining & metallurgy |
| Zdroj: | Hydrometallurgy. 183:118-124 |
| ISSN: | 0304-386X |
| DOI: | 10.1016/j.hydromet.2018.11.011 |
| Popis: | The industrial demand for lithium especially in a battery is expected to be high in near future. The use of lithium selective adsorbents, such as spinel-type lithium manganese oxides (LMOs) show the potential candidates for recovery of lithium from seawater. Here we report the approach for recovery of lithium from seawater using a new composite composed of LMO and epoxy-silica hybrid binder (HB) prepared by sol-gel method. The LMO and HB composites were coated on polyvinyl chloride (PVC) plate and its adsorption efficiency was studied in terms of binder contents and thickness. The composite showed excellent physicochemical and mechanical durability in seawater. The adsorption capacity of 6.5 mg/g (67% in comparison to that by powder LMO) was obtained in natural seawater when the composition of HB/LMO was 30/70 (in dry wt%) at a thickness of 300 μm. The kinetic study showed that the lithium adsorption on composite obtained using 30 mg/L Li spiked seawater was found to be matched to pseudo-second order model as the coating thickness was |
| Databáze: | OpenAIRE |
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