The Production of Isophorone

Author:

Ruther Timm1,Müller Marc-André2,Bonrath Werner2,Eisenacher Matthias1ORCID

Affiliation:

1. Circular Transformation Lab Cologne, TH Köln-University of Applied Sciences, 50678 Köln, Germany

2. DSM Nutritional Products, 4303 Kaiseraugst, Switzerland

Abstract

Isophorone is a technically important compound used as a high-boiling-point solvent for coatings, adhesives, etc., and it is used as a starting material for various valuable compounds, including isophorone diisocyanate, a precursor for polyurethanes. For over 80 years, isophorone has been synthesized via base-catalyzed self-condensation of acetone. This reaction has a complex reaction mechanism with numerous possible reaction steps including the formation of isophorone, triacetone dialcohol, and ketonic resins. This review provides an overview of the different production processes of isophorone in liquid- and vapor-phase and reviews the literature-reported selectivity toward isophorone achieved using different reaction parameters and catalysts.

Funder

Koninklijke DSM N.V

Publisher

MDPI AG

Subject

General Earth and Planetary Sciences,General Environmental Science

Reference269 articles.

1. (2022, October 30). Evonik-60 Years Isophorone Chemistry. Available online: https://crosslinkers.evonik.com/media/public/misc/zeitstrahl/index.html.

2. Evonik Industries, A.G. (2022, October 28). Damit der Lack Nicht ab Ist: Isophoron. Available online: https://history.evonik.com/de/erfindungen/isophoron.

3. Neuere Acetonchemie;Schmitt;Chem. Ind.,1966

4. Preparation, properties, and applications of isophorone;Matyschok;Wiad. Chem.,1973

5. Selective catalytic self-condensation of acetone;Salvapati;J. Mol. Catal.,1989

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