Synthesis of Dipentaerythritol by Reactive Extrusion
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.
Authors
- Etienne Airiau
- Estelle Métay (ORCID: https://orcid.org/0000-0002-0644-4492)
- Vivien Henryon
- Rodolphe Berthelon
- Karim Delage
- Véronique Bounor-Legaré
Institutions
- Université Claude Bernard Lyon 1 (FR)
- Centre National de la Recherche Scientifique (FR)
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (FR)
- Ingenierie des Materiaux polymeres (FR)
Publication Details
- Journal
- Industrial & Engineering Chemistry Research
- Published
- 2026-02-17
- DOI
- https://doi.org/10.1021/acs.iecr.5c04984
- Primary Topic
- Lubricants and Their Additives
- Type
- article
- Field-Weighted Citation Impact
- 0.00