Abstract
p-tert-butylcalix[6]arene (CalixSMO) was synthesized for Sr2+ separation and the chemical structure of the synthesized product was confirmed by FT-IR, 1HNMR and MS. The results show that when the initial concentration of nitric acid is 3 mol×L-1 and CH2Cl2 is used as the organic solvent, the Sr2+ extraction rate could reach to 60% after extraction for 120 min under 298 K. The ratio of CalixSMO/Sr2+ in the inclusion complexes is 1/2. Moreover, studies on the extraction of K+, Sb3+, Ca2+, Sm3+, Sn4+ and Na+ show that CalixSMO has good selectivity for Sr2+.
| Original language | English |
|---|---|
| Pages (from-to) | 1496-1501 |
| Number of pages | 6 |
| Journal | Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities |
| Volume | 29 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Dec 2015 |
Keywords
- Extraction
- P-tert-butylcalix[6]arene
- Sr
- Synthesis