Work

Synthesis of Dipentaerythritol by Reactive Extrusion

Year: 2026

Type: article

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.

Source: Industrial & Engineering Chemistry Research

DOI: 10.1021/acs.iecr.5c04984

Authors: Rodolphe Berthelon, Karim Delage, Vivien Henryon, Etienne Airiau, Véronique Bounor-Legaré, Estelle Métay

Institutions: Lyon 1 Université, Centre National de la Recherche Scientifique, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Ingenierie des Materiaux polymeres

Language: English

Topic: Chemical Synthesis and Reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: green

Funder: Région Auvergne-Rhône-Alpes