| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction and Processing
|
| Presentation Title |
Method for Producing High Purity LiOH.H2O Using Ba(OH)2 |
| Author(s) |
Hongting Liu, Gisele Azimi |
| On-Site Speaker (Planned) |
Hongting Liu |
| Abstract Scope |
In this study, a process for producing high purity lithium hydroxide monohydrate (LiOH.H2O) from synthetic lithium sulfate (Li2SO4) solution by using barium hydroxide (Ba(OH)2) is proposed. Various operating conditions are investigated and results show that 90% of the lithium in initial Li2SO4 solution can be converted to aqueous LiOH in a one-step precipitation process and the final LiOH.H2O product is determined to have over 99.5% purity. Additional steps including product washing and carbonation are also proposed to improve the lithium conversion and product purity. The by-product barium sulfate (BaSO4) has high market value and can be used in many applications. This process has simple operating procedure, low capital and energy cost and can achieve high product yield and battery grade purity in one batch of reaction without complicated procedures. |
| Proceedings Inclusion? |
Planned: |