期刊
CHEMSUSCHEM
卷 14, 期 11, 页码 2375-2382出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202100322
关键词
azelaic acid; biomass; heterogeneous catalysis; oxidative cleavage; pelargonic acid
资金
- Bio Based Industries Joint Undertaking under the European Union's Horizon 2020 research and innovation programme [669029]
- H2020 Societal Challenges Programme [669029] Funding Source: H2020 Societal Challenges Programme
This study introduces a new heterogeneous catalyst for the oxidative cleavage of unsaturated fatty acids triglycerides derived from vegetable oil, providing a promising alternative to current ozonization processes. The catalyst based on Cu2+ showed efficient recovery, regeneration, and recycling capabilities, offering potential for further industrial exploitation.
This paper deals with a new heterogeneous catalyst for the second step in the two-step oxidative cleavage of unsaturated fatty acids triglycerides derived from vegetable oil, a reaction aimed at the synthesis of azelaic and pelargonic acids. The former compound is a bio-monomer for the synthesis of polyesters; the latter, after esterification, is used in cosmetics and agrochemicals. The reaction studied offers an alternative to the currently used ozonization process, which has severe drawbacks in terms of safety and energy consumption. The cleavage was carried out with oxygen, starting from the glycol (dihydroxystearic acid triglyceride), the latter obtained by the dihydroxylation of oleic acid triglyceride. The catalysts used were based on Cu2+, in the form of either an alumina-supported oxide or a mixed, spinel-type oxide. The CuO/Al2O3 catalyst could be recovered, regenerated, and recycled, yielding promising results for further industrial exploitation.
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