Waste raw materials obtained by several sources of both food and agro industries could be considered for biomaterials production. In the last years, this topic has growing in interest, in particular considering the oleins, mixtures of free fatty acids (FFAs) and glycerides. The purpose of this study is related the investigation of the performances of synthetic acid resin (sPSB-SA) as a new heterogeneous catalyst characterized by a high stability at high temperatures (180°C). This catalytic system was tested in esterification reaction in order to obtain biochemical (such as plasticizers or surfactant) and biolubricants (an alternative to the petrochemical lubricants). The results showed that the synthetic resins sPSB-SA1 and sPSB-SA2 (reticulated) had similar activity of sulfuric acid, in particular the resin showed higher activity than all catalysts tested.
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