通过钙钛矿型氧化物催化氧化从木质素制备丁香醛
Preparation of Syringaldehyde from Lignin by Catalytic Oxidation of Perovskite-Type Oxides.
作者信息
Li Ying-Xia, Zhu Jun-Peng, Zhang Zhong-Jun, Qu Yong-Shui
机构信息
Beijing University of Chemical Technology, Beijing 100029, China.
State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
出版信息
ACS Omega. 2020 Jan 29;5(5):2107-2113. doi: 10.1021/acsomega.9b02379. eCollection 2020 Feb 11.
The influence of different reaction conditions on the yield of syringaldehyde was studied by using perovskite oxide as the catalyst. The optimal reaction conditions are as follows: 0.60 g of dealkali lignin, 0.60 g of 5 wt % theta ring-loaded LaFeCuO catalyst, 30 mL of 1.0 mol/L NaOH solution, 160 °C reaction temperature, 0.80 MPa O pressure, and 2.5 h reaction time. Under these conditions, the highest syringaldehyde yield was 10.00%. The recycling performance of the catalyst was studied. It was found by XRD analysis that the catalyst maintained high catalytic activity after four times of use.
以钙钛矿氧化物为催化剂，研究了不同反应条件对丁香醛产率的影响。最佳反应条件如下：脱碱木质素0.60 g、5 wt% θ环负载LaFeCuO催化剂0.60 g、1.0 mol/L NaOH溶液30 mL、反应温度160℃、氧气压力0.80 MPa、反应时间2.5 h。在此条件下，丁香醛的最高产率为10.00%。研究了催化剂的循环使用性能。通过XRD分析发现，该催化剂在使用四次后仍保持较高的催化活性。
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