Abstract
Extraction equilibria are presented for reversible chemical complexation of lactic acid by the liquid tertiary amine extractant, trin-octylamine, in mixed diluents composed of 1-octanol and the gas antisolvent, propane. Experimental data were collected that show that the effect of increasing propane partial pressure during extraction is to decrease the acid loading of tri-n-octylamine. This result is discussed. A simple complexation model was employed to predict and to fit the experimental results. The model uses the Law of Mass Action to describe reaction equilibria and Wohl's expansion to estimate the solubility of propane in the organic-phase mixture. Finally, estimated energy requirements are presented for a gas antisolvent-induced regeneration process for acid-laden basic extractants; results are compared with those for a conventional diluentswing regeneration process.
Sign-in/Register to access full text options 
Free) 
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 call
