Abstract
Oily wastes are the serious environmental hazards in petroleum industry. Solvent extraction has commonly been used to remove oil from these wastes. However, the traditional solvents suffer from challenges such as difficult separation of oil and solvent, and high solvent consumption. Here, oil separation and solvent reuse were well achieved through the phase transition of ionic liquid system (D-230-FA system) between one phase and two phases, which the process procedure was simple. The ionic liquid (D-230-FA) was successfully formed by poly (propylene glycol) bis (2-aminopropyl ether) D-230 and fatty acids, which was demonstrated by 1HNMR and FT-IR. The acid-basic switchability of the D-230-FA system was studied by pH, FT-IR. The process of separating oil based on the D-230-FA system was studied by SEM, infrared spectrophotometry test, Soxhlet extraction and molecular dynamics simulation. The results show that the D-230-FA system exhibited excellent acid-basic switchability, the extraction rate could reach 97.59 % and the residual oil rate in the solvent was less than 0.1495 %. Thus, the acid-base switchable D-230-FA system will be expected to treated as the effective extractant for sustainable separation of oily wastes.
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.
