Synthesis of Dipentaerythritol by Reactive Extrusion
Abstract
Dipentaerythritol (DPE) is a polyol with a wide range of applications in coating, painting, or lubricant industries. In this study, a method to synthesize DPE starting from pentaerythritol (PE) by using a solvent-free reactive extrusion continuous process is proposed. A yield of 11% with a 58% selectivity was obtained in less than 5 min using 1 mol % of p -toluenesulfonic acid (PTSA) at 230 °C with a PE feed rate of 2 kg/h. The use of a solvent as liquid-assisted grinding (LAG) or a polymer as polymer-assisted grinding (POLAG) was also investigated, but only dilution effects were observed.
Fields of Study & Subjects
Chemical Synthesis and Reactions
Catalysis for Biomass Conversion
Microwave-Assisted Synthesis and Applications
Publication details
- Journal / source
- Industrial & Engineering Chemistry Research
- Volume
- 65
- Issue
- 8
- Pages
- 4371–4379
- Publication date
- 17 February 2026
- Language
- EN