|
Vol.53, No.8, 578 ~ 584, 2015
|
| Title |
| Recovery of Boron and Separation of Lithium from Uyuni Salar Brine using 2, 2, 4-Trimethyl -1, 3-Pentanediol (TPD) |
| Jyothi Rajesh Kumar , Chul Joo Kim , Ho Sung Yoon , Dong Jun Kang , Jin Young Lee |
|
|
|
| Abstract |
| In the present study, extraction and separation possibilities have been established for boron and lithium from Uyuni salar brine. Diols were shown to be effective extraction reagents for boron. The present scientific study was developed with 2, 2, 4-trimethyl-1, 3-pentanediol (TPD) as an extractant system. For fixing the diluent system, various diluents were tested and it was found that chloroform is a better diluent for boron extraction. Further, experimental studies on the extraction equilibrium time, pH influence, and phase ratio effects on boron extraction were conducted and the conditions for boron recovery and lithium separation were optimized. The McCabe Thiele diagram was established to optimize the number of extraction stages for boron extraction. Finally, stripping studies of boron from the loaded organic phase using various salts were performed. Received October 31, 2014) |
|
|
| Key Words |
| boron, extraction, recovery, separation, uyuni salar brine, lithium, diol |
|
|
 |
|
