Yun Hyeonjun, Lee Yeongho, Cho Jangho, Chung Minchul, Jung Sunghun, Kwak Wonbong, Ahn Ho-Geun
Department of Chemical Engineering, Sunchon National University, 235, Jungang-ro, Suncheon-si, Jeonnam, 57922, South Korea.
SFC Co., Ltd., 342-42, Yesusandan 1-ro, Yeosu-si, Jeonnam, 59610, South Korea.
J Nanosci Nanotechnol. 2018 Feb 1;18(2):1457-1460. doi: 10.1166/jnn.2018.14903.
Styrenated phenols (SPs) involving very small amount of unreacted phenol and high content of di-SP (DSP) were synthesized, which can be used to prepare SP alkoxylate. The solid catalyst was prepared by impregnation method. SO2-4 on SO2-4/MxOy catalyst was introduced from an aqueous 1M-H2SO4 solution. The catalysts were characterized by XRD patterns, and FT-IR spectra. The catalytic activity was examined by measuring conversion of phenol and styrene in a batch liquid-phase reactor. The concentration of phenol, styrene, and SPs were measured by GC with capillary column. The optimum synthesis conditions for concentration of sulfuric acid solution, catalyst amount of reactants, reaction temperature, and reaction time over SO2-4/ZrO2 catalyst were 15 wt%, 15 wt%, 100 °C, and 6 hr, respectively. At these conditions, conversion of both phenol and styrene were almost 100%, and the selectivity of DSP was 52.1%. On the other hand, the optimum synthesis conditions over SO2-4/TiO2 catalyst were 10 wt%, 5 wt%, 100 °C, and 1 hr, respectively, and conversion of both phenol and styrene were almost 100%, and the selectivity of DSP was 66.1%.
合成了含有极少量未反应苯酚和高含量二苯乙烯化苯酚（DSP）的苯乙烯化苯酚（SPs），其可用于制备SP烷氧基化物。通过浸渍法制备固体催化剂。SO2-4/MxOy催化剂上的SO2-4由1M-H2SO4水溶液引入。通过XRD图谱和FT-IR光谱对催化剂进行表征。在间歇式液相反应器中通过测量苯酚和苯乙烯的转化率来考察催化活性。苯酚、苯乙烯和SPs的浓度通过带有毛细管柱的气相色谱法测定。在SO2-4/ZrO2催化剂上，硫酸溶液浓度、反应物催化剂用量、反应温度和反应时间的最佳合成条件分别为15 wt%、15 wt%、100°C和6小时。在这些条件下，苯酚和苯乙烯的转化率几乎均为100%，DSP的选择性为52.1%。另一方面，在SO2-4/TiO2催化剂上的最佳合成条件分别为10 wt%、5 wt%、100°C和1小时，苯酚和苯乙烯的转化率几乎均为100%，DSP的选择性为66.1%。
