Link to my google scholar page: Google Scholar page
https://pubs.rsc.org/en/content/articlelanding/2022/cy/d2cy01619b
Patent link: WO2019089448A1
Link to article: https://www.inderscienceonline.com/doi/abs/10.1504/IJOGCT.2020.105454
Abstract from paper:
"The extraction of phenols from coal tar oils using acetonitrile solutions of ionic liquids (ILs) through a new extraction method is studied. The IL containing acetonitrile solution formed a clear immiscible layer with hexane containing coal tar oil, which facilitated superior extractions of phenol and p-cresol with high distribution coefficient values. The IL with lower carbon chain length (three carbons) showed extraction efficiency greater than 96% for phenol and p-cresol extractions from coal tar oil. The process models for extraction of phenol and p-cresol from coal tar oil were studied to comprehend the interactions of various factors"
Link to copy: https://etd.ohiolink.edu/!etd.send_file?accession=toledo1501787516721277&disposition=inline
Awarded outstanding thesis award 2017 by The University of Toledo, Ohio.
Abstract from thesis :
"Homogenous catalysts are generally more active than their heterogeneous counterparts because the solubility in the reaction medium contributes to access of reactants to all active sites. However, heterogeneous catalysts are commonly preferred because catalysts can be easily recovered from the medium and be reused. Poly (styrenesulfonic acid)(PSSA) combines the advantages of both homogeneous and heterogeneous catalysis. PSSA is soluble in polar solvents, therefore all sulfonic acid sites are readily accessible. In addition, the catalyst cannot be deactivated through coking because there is no surface for the carbonaceous species to be deposited. At the same time, PSSA, due to its high molecular weight, can be easily recovered by ultrafiltration and be reused. PSSA has shown to be effective in reactions that require Brønsted acid sites, eg, production of biodiesel from vegetable oil, dehydration of xylose to furfural, and oxidation of furfural to maleic and succinic acids."