Abstract
Solvent sublation was used to separate the low concentration l-lysine from the aqueous solution by using dodecylbenzenesulforic acid (DBSA) as the surfactant, di-(2-ethylhexyl) phosphoric acid (D2EHPA) as the extractant, n-heptane as the extraction solvent. Especially the effects of initial pH, D2EHPA concentration in the organic phase, DBSA and NaCl concentration in the aqueous phase and air flow rate on the separation efficiency were investigated. The results showed that the optimum conditions of initial pH, D2EHPA concentration in the organic phase, DBSA and NaCl concentration in the aqueous phase and air flow rate were 7, 30%, 0.2 g/l, 0 mol/l and 250 ml/min, respectively, under room temperature and the enrichment ratio and recovery ratio were 13.26 and 79.57%, respectively. The separation efficiency of solvent sublation was higher than that of the traditional foam floatation and solvent extraction. Furthermore, the separation mechanism of solvent sublation was also discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
