화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션)
권호 20권 1호
발표분야 고분자_포스터
제목 Process design for lithium recovery using bipolar membrane electrodialysis system
초록 This study aims to evaluate the effect of LMO (lithium manganese oxide) and enhanced BEDI (bipolar membrane electro-dialysis deionization) system on the lithium ion desorption process for the recovery of lithium ions. The factors that influence lithium ion recovery are evaluated in reference to the pH, voltage, flow rates, and number of bipolar membrane sheets. The research findings show that in the desorption of LMO lithium ions, the lower the pH, the higher the desorption rates. When the voltage was 6.5 V per sheet, the desorption rates were approximately 70%, and when flow rates were 0.44 mL/cm2·min, the desorption was approximately 30 minutes faster than that at other flow rates. When the number of bipolar membrane sheets was 4, it was possible to control the pH to under 4. For a combination of the conditions above, the recovery time was reduced by approximately 180 minutes compared to when a chemical process was used for lithium ion desorption.
저자 김영중, 권혁재, 황택성
소속 충남대
키워드 Electrodialysis; bipolarmembrane
E-Mail tshwang@cnu.ac.kr