Abstract
The process of supercritical fluid extractive regeneration of the ion-exchange catalyst KU-2FPP was studied. The use of pure supercritical carbon dioxide (SC-CO 2 ) and the one modified with a polar additive (H 2 O) as the extractant in the process at T = 383÷393 K and P = 15÷25 MPa provided an effective removal of non-polar organic compounds and the occurrence of the side carboxylation reaction to form dialkylphthalate. The side reaction was supposed to bear responsibility for the ineffective regeneration in the presence of SC-CO 2 as the extractant. The application of supercritical propane-butane mixture as the extractant (T = 393 K, P = 10÷15 MPa) allowed the catalyst activity to be restored to the level appropriate for the industrial application.
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.
