화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.19, No.4, 446-452, December, 2013
Export Citation
습식혼합에 의한 리튬망간 산화물의 합성과 리튬이온 제거특성
Synthesis of Lithium Manganese Oxide by Wet Mixing and its Removal Characteristic of Lithium Ion
유해나, 이동환1, 이민규†
  • 부경대학교 화학공학과, 608-739 부산광역시 남구 용당동 신선로 365
  • 1동의대학교 화학과, 614-714 부산광역시 부산진구 엄광로 176
Hae-Na You, Dong-Hwan Lee1, and Min-Gyn Lee†
  • Department of Chemical Engineering, Pukyong National University, 365 Sinsun-ro, Yongdang-dong, Nam-gu, Busan 608-739, Korea
  • 1Department of Chemistry, Dong Eui University, 176 Eomgwang-ro, Busanjin-gu, Busan 614-714, Korea
E-mail:
초록
본 연구에서는 탄산리튬과 탄산망간을 사용하여 습식혼합방법으로 스피넬 리튬망간 산화물(LMO)을 합성하였다. 합성한 리튬망간 산화물의 물리적인 특성은 X-선 회절 분석기(X-ray diffraction, XRD)와 주사전자현미경(scanning electron microscopy, SEM) 사용하여 분석하였다. 회분식 실험을 통해 LMO의 리튬이온에 대한 흡착특성을 살펴보았다. Langmuir 흡착 등온식으로부터 구한 리튬의 최대흡착량은 27.21 mg/g였다. LMO는 뛰어난 리튬 이온체의 특성을 가지고 있었으며, Ca2+ < K+ < Na+
In this paper, the wet mixing method was introduced to prepare spinel lithium manganese oxide (LMO) with Li2CO3 and MnCO3. The physical properties of the resulting lithium manganese oxide were characterized by the XRD and SEM. The adsorption properties of LMO for Li+ were investigated by batch methods. The maximum adsorption capacity of lithium was calculated from Langmuir isotherm and found to be 27.25 mg/g. The LMO are found to have a remarkable lithium ion-sieve property with distribution coefficients (Kd) in the order of Ca2+ < K+ < Na+ < Mg2+ < Li+, which is promising in the lithium extraction from seawater.
Keywords:Lithium manganese oxide;Adsorption;Lithium;Wet mixing
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