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| 用十二烷基苯磺酸钠萃取酪氨酸 | |
| 引用本文： | 李燕 张关永. 用十二烷基苯磺酸钠萃取酪氨酸[J]. 医学教育探索, 1998, 0(5): 594-599 |
| 作者姓名： | 李燕 张关永 |
| 作者单位： | 华东理工大学化学系 |
| 摘 要： | 用溶剂萃取法从盐酸介质中萃取酪氨酸。以十一烷基苯磺酸钠为萃取剂，以磺化煤油为稀释剂，磷酸三丁酯为调相剂，考察了各种因素对酪氨酸分配比的影响，确定了萃取及反萃过程的最佳工艺条件。研究了萃取反萃过程的热效应，计算了萃取和反萃取的理想级数。 |
| 关 键 词： | 十二烷基 苯磺酸钠 溶剂萃取 酪氨酸 |
A Study of Extraction of Tyrosine by Sodium Dodecylbenzene Sulfonate Acid |
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| Abstract: | The extraction of tyrosine from hydrochloric acid medium was studied. In the experiments sodium dodecylbenzene sulfonate acid was chosen as extractant, kerosene as solvent and TBP as additive agent. The effects of temperature, pH and extractant concentration on the distribution coefficients of tyrosine were discussed. The optimum conditions of extraction and stripping are obtained. The entropy changes in extracting and stripping reaction are -9.23kJ/mol and 11.2kJ/mol respectively. The sodium dodecylbenzene sulfonate of extraction and stripping numbers of theoretic stages are 5 and 4 respectively. |
| Keywords: | sodium dodecylbenzene sulfonate solvent extraction tyrosine cystine stripping |
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