Effect of Phosphorus Precursor, Reduction Temperature, and Support on the Catalytic Properties of Nickel Phosphide Catalysts in Continuous-Flow Reductive Amination of Ethyl Levulinate Full article
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International Journal of Molecular Sciences
ISSN: 1422-0067 , E-ISSN: 1661-6596 |
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| Output data | Year: 2022, Volume: 23, Number: 3, Article number : 1106, Pages count : 11 DOI: 10.3390/ijms23031106 | ||||
| Tags | nickel phosphide; reductive amination; ethyl levulinate; N-alkyl-5-methyl-2-pyrrolidone; flow reactor; molecular hydrogen; support effect; reduction temperature; phosphorus precursor | ||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0008 |
| 2 | China Scholarship Council |
Abstract:
Levulinic acid and its esters (e.g., ethyl levulinate, EL) are platform chemicals derived from biomass feedstocks that can be converted to a variety of valuable compounds. Reductive amination of levulinates with primary amines and H2 over heterogeneous catalysts is an attractive method for the synthesis of N-alkyl-5-methyl-2-pyrrolidones, which are an environmentally friendly alternative to the common solvent N-methyl-2-pyrrolidone (NMP). In the present work, the catalytic properties of the different nickel phosphide catalysts supported on SiO2 and Al2O3 were studied in a reductive amination of EL with n-hexylamine to N-hexyl-5-methyl-2-pyrrolidone (HMP) in a flow reactor. The influence of the phosphorus precursor, reduction temperature, reactant ratio, and addition of acidic diluters on the catalyst performance was investigated. The Ni2P/SiO2 catalyst prepared using (NH4)2HPO4 and reduced at 600 °C provides the highest HMP yield, which reaches 98%. Although the presence of acid sites and a sufficient hydrogenating ability are important factors determining the pyrrolidone yield, the selectivity also depends on the specific features of EL adsorption on active catalytic sites
Cite:
Wang Y.
, Nuzhdin A.L.
, Shamanaev I.V.
, Kodenev E.G.
, Gerasimov E.Y.
, Bukhtiyarova M.V.
, Bukhtiyarova G.A.
Effect of Phosphorus Precursor, Reduction Temperature, and Support on the Catalytic Properties of Nickel Phosphide Catalysts in Continuous-Flow Reductive Amination of Ethyl Levulinate
International Journal of Molecular Sciences. 2022. V.23. N3. 1106 :1-11. DOI: 10.3390/ijms23031106 WOS Scopus РИНЦ ANCAN PMID OpenAlex
Effect of Phosphorus Precursor, Reduction Temperature, and Support on the Catalytic Properties of Nickel Phosphide Catalysts in Continuous-Flow Reductive Amination of Ethyl Levulinate
International Journal of Molecular Sciences. 2022. V.23. N3. 1106 :1-11. DOI: 10.3390/ijms23031106 WOS Scopus РИНЦ ANCAN PMID OpenAlex
Dates:
| Submitted: | Dec 20, 2021 |
| Accepted: | Jan 18, 2022 |
| Published online: | Jan 20, 2022 |
| Published print: | Feb 1, 2022 |
Identifiers:
| Web of science: | WOS:000755589500001 |
| Scopus: | 2-s2.0-85122963426 |
| Elibrary: | 48143730 |
| Chemical Abstracts: | 2022:411058 |
| Chemical Abstracts (print): | 178:162297 |
| PMID: | 35163029 |
| OpenAlex: | W4206420530 |