Selective recovery of lithium from seawater using a novel MnO2 type adsorbent. II – Enhancement of lithium ion selectivity of the adsorbent

• Autorzy: Kitajou A. , Suzuki T. , Nishihama S. , Yoshizuka K.
• Języki publikacji: EN

Abstrakty

EN

A novel spinel-type manganese dioxide adsorbent has been developed for the selective recovery of Li+ from seawater. The adsorbent can be prepared from a lithium-rich component of spinel-type lithium dimanganese tetraoxide Li1.5Mn2O4, followed by ion exchange of Li+ by H+ with diluted hydrochloric acid. The X-ray analysis of the adsorbent suggests the adsorption-elution cycle of Li+ progresses under γ expansion-shrinking mechanism of the adsorbent. The adsorption of Li+ progresses via cation exchange, and the selective recovery of Li+ can be carried out, even when the large amount of Na+ coexists in seawater. The chromatographic selective recovery of Li+ from the artificial seawater shows that Li+ can be selectively adsorbed with remaining most of Na+ in the feed solution in the break through step, while Li+ of high purity can recover and concentrate into the elutant in the elution step.

Słowa kluczowe

EN

adsorption; recovering lithium; seawater; manganese dioxide

• Wydawca: Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Bydgoszcz
• Czasopismo: Ars Separatoria Acta
• Rocznik: 2003
• Tom: No. 2
• Strony: 97--106
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Kitajou A.

• Department of Chemical Processes and Environments, The University of Kitakyushu, Hibikino 1-1, Kitakyushu 808-0135, Japan

autor

Suzuki T.

• Department of Chemical Processes and Environments, The University of Kitakyushu, Hibikino 1-1, Kitakyushu 808-0135, Japan

autor

Nishihama S.

• Department of Chemical Processes and Environments, The University of Kitakyushu, Hibikino 1-1, Kitakyushu 808-0135, Japan

autor

Yoshizuka K.

• Department of Chemical Processes and Environments, The University of Kitakyushu, Hibikino 1-1, Kitakyushu 808-0135, Japan

Bibliografia

• [1] Takashi Nishiyama, Kouzanshigen no genjyou, Arumu-syuppan, 1989, 185-191 (Japanese Book).
• [2] Nihon kaisui-gakkai, Toukaidaigaku syuppankai 1994, 533-541.
• [3] E. Kunugita, J.H. Kim, I. Komazawa, Kagaku Kogaku Ronbunshu, 1990, 16, 1045-1052.
• [4] R. Chitrakar, H. Kanoh, Y. Miyai, K. Ooi, Ind. Eng. Chem. Res., 2001, 40, 2054-2058.
• [5] K. Ooi, Y. Miyai, J. Sakakihara, Langmuir, 1991, 7, 1167-1171.
• [6] W. Tang, H. Kanoh, K. Ooi, J. Solid State Chem., 1999, 142, 19-28.
• [7] K. Yoshizuka, K. Fukui, K. Inoue, Ars Separatoria Acta, 2002, 1, 79-86.