|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing
||Recovery of Lithium from Brine with MnO2 Nanowire Ion Sieve Composite
||Rajashekhar Marthi, York Reed Smith
|On-Site Speaker (Planned)
Lithium is anticipated to be a key, strategic material in the clean technology economy. The majority of lithium reserves are contained in continental brines and seawater (>60%). Currently the most economical approach to recover lithium from such resources is through selective adsorption. Spinel type lithium manganese oxide and lithium titanium oxide have demonstrated to be excellent candidate materials (after de-lithiation). However, due to the small size of the powders, they have limited industrial application and requires immobilization. In this work, we examine the application of a novel manganese oxide nanowire composites for the extraction of lithium from continental brines. Various polymorphs of manganese oxide nanowires were synthesized and simultaneously immobilized on diatomaceous earth via hydrothermal method. Adsorption studies were carried out using simulated and Great Salt Lake brine solutions. The effect of manganese oxide crystal phase and other various parameters on the nature of lithium adsorption is discussed.