TITLE:
Synthesis and Characterization of Lithium Manganese Oxide with Different Ratio of Mole on Lithium Recovery Process from Ge-othermal Fluid of Lumpur Sidoarjo
AUTHORS:
Lukman Noerochim, Gita Akbar Satriawangsa, Diah Susanti, Amien Widodo
KEYWORDS:
Lithium Manganese Oxide, Adsorbent, Lithium Recovery, Geothermal Fluid, Lumpur Sidoarjo
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.3 No.11,
November
23,
2015
ABSTRACT: Geothermal fluid of Lumpur Sidoarjo (Lusi) with lithium content as high as 5.81 mg/liter has a great potential as the source of lithium. Lithium recovery from geothermal liquid of Lusi is firstly investigated by adsorption methods with Lithium Manganese Oxide (LMO) as absorbent. LMO is considered as a promising candidate of adsorbent material due to non-toxic and low cost production. LMOs with different ratio of mole are prepared by solid state reactions method at temperature 500?C for 5 hrs. XRD peaks of pre- and post-acid treatment LMO 1, 0.8 and 0.5 show a stable spinel crystal structure while LMO 2 has monoclinic structure. The highest lithium adsorption capability is obtained by LMO 1 with 6.6 mg/g.