A Series of Novel Dendritic Salicylaldimine Iron Catalysts: Synthesis, Characterization, and Application in Ethylene Oligomerization
- Autores: Jun Wang 1, Shang Y.1, Zhang N.1, Li C.1, Shi W.1
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Afiliações:
- Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University
- Edição: Volume 92, Nº 13 (2018)
- Páginas: 2618-2627
- Seção: Chemical Kinetics and Catalysis
- URL: https://journal-vniispk.ru/0036-0244/article/view/170276
- DOI: https://doi.org/10.1134/S0036024418130162
- ID: 170276
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Resumo
A series of novel dendritic salicylaldimine ligands and their corresponding iron complexes have been synthesized using 1.0 generation (1.0 G) dendritic macromolecules, salicylaldehyde and FeCl2 · 4H2O as raw materials. The structures of the ligands and iron complexes were characterized by FT-IR, 1H NMR, UV, ESI-MS, and elemental analysis. The dendritic salicylaldimine iron complexes presented moderate catalytic activity in ethylene oligomerization and selectivity for higher carbon number olefins products (≥C8) when they were activated with methylaluminoxane (MAO). The catalytic activity and product selectivity were related to the co-catalyst, solvent, bridged group length and reaction parameters such as reaction temperature, Al/Fe molar ratio and ethylene pressure. The complex C3 showed the highest catalytic activity (up to 13.75 × 104 g (mol Fe h)–1) and the selectivity of higher carbon number olefins (35.31%) at the optimized conditions. Moreover, the catalytic properties of dendritic salicylaldimine iron complex C3 was better than non-dendritic iron complex.
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Sobre autores
Jun Wang
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering,Northeast Petroleum University
Email: sswwgg2003@126.com
República Popular da China, Daqing, Heilongjiang Province, 163318
Yiteng Shang
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering,Northeast Petroleum University
Email: sswwgg2003@126.com
República Popular da China, Daqing, Heilongjiang Province, 163318
Na Zhang
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering,Northeast Petroleum University
Email: sswwgg2003@126.com
República Popular da China, Daqing, Heilongjiang Province, 163318
Cuiqin Li
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering,Northeast Petroleum University
Email: sswwgg2003@126.com
República Popular da China, Daqing, Heilongjiang Province, 163318
Weiguang Shi
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering,Northeast Petroleum University
Autor responsável pela correspondência
Email: sswwgg2003@126.com
República Popular da China, Daqing, Heilongjiang Province, 163318
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