RESEARCH ARTICLE
Vol. 37 (3) September 2025, p. 519-532

SULPHONIC ACIDS SUPPORTED ON Fe3O4/PVA MAGNETIC COMPOSITE AS CATALYSTS FOR ESTERIFICATION OF FREE FATTY ACIDS

ANDREW T. H. YEOW1,2; ADEEB HAYYAN1,2*; MOHD USMAN MOHD JUNAIDI1,2; MUNEER M. BA-ABBAD3 and MOHD ALI HASHIM1
DOI: https://doi.org/10.21894/jopr.2024.0042  |   Published Online: 4 September 2024
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