Abstract
A series of Cu–alginate and Cu–Pd–alginate catalysts were prepared by the ion exchange of Na–alginate, and their structures were well characterized by FT-IR, XPS and ICP-AES measurements. Their catalytic activities for phenol hydroxylation in the fixed-bed flow reactor were investigated. The effects of different reaction conditions, such as molar ratio of phenol/H2O2, reaction temperature, weight hourly space velocity, solution and weight ratio of water/phenol were evaluated. Under the optimum reaction conditions, 17.1 % phenol conversion was obtained with selectivities to catechol and hydroquinone being 67.7 and 31.4 %, respectively. The 16.0–18.0 % phenol conversion and selectivities to HQ 30.0–32.0 %, CAT 66.0–68.0 % and BQ 0.7–2.0 % of the long-run catalytic test confirmed the excellent stable catalytic activity of the catalyst.
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Acknowledgments
This work was supported by the Natural Science Fund Council of China (21203013) and Undergraduate Scientific and Technological Innovation Project of Changchun University of Technology (2014cxcy156). The authors gratefully acknowledge the Centre of Analysis and Testing of Northeast Normal University and Changchun University of Technology for all of the support that was provided.
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Shi, F., Luo, Y., Wang, W. et al. Hydroxylation of phenol with H2O2 over binary Cu–Pd–alginate catalyst in the fixed-bed flow reactor. Reac Kinet Mech Cat 115, 187–199 (2015). https://doi.org/10.1007/s11144-015-0836-1
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DOI: https://doi.org/10.1007/s11144-015-0836-1