METHOD FOR PREPARING LITHIUM ADSORBENT

• Main Authors: KO, YOUNG SEON, YANG, HEOK, PARK, WOON KYOUNG, KUK, SEUNG TAEK, PARK, KWANG SEOK
• Format: Patent
• Language: English; Korean
• Published: 04.07.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The present invention relates to a method for preparing a lithium adsorbent comprising the following steps: inputting a strong acid solution to activated carbon and oxidizing the surface of the activated carbon; inputting an aluminum containing solution and a lithium containing solution to the activated carbon of which the surface is oxidized; and controlling pH of the mixture to prepare activated carbon in which an aluminum-based adsorbent is coupled on the surface. Accordingly, lithium in the solution can be effectively extracted. 본 발명은, 활성탄에 강산 수용액을 투입하여 활성탄 표면을 산화시키는 단계, 상기 표면이 산화된 활성탄에 알루미늄 함유 용액 및 리튬 함유 용액을 투입하여 혼합물을 제조하는 단계, 및 상기 혼합물의 pH를 조절하여 표면에 알루미늄계 흡착제가 결합된 활성탄을 제조하는 단계를 포함하는 리튬 흡착제의 제조 방법에 관한 것이다.