Department of Chemical Engineering, Sunchon National University, Maegok-dong, Suncheon-si, Jeonnam 540-742, South Korea.
SFC. Co., Ltd., 342-42, Yesusandan 1-ro, Yeosu-si, Jeonnam 550-280, South Korea.
J Nanosci Nanotechnol. 2019 Feb 1;19(2):1196-1199. doi: 10.1166/jnn.2019.15934.
Styrenated phenols (SPs) are usually synthesized by the reaction of styrene and phenol under acid catalysts. SPs with a high content of di-styrenated phenol (DSP) can be used to prepare styrenated phenol alkoxylate (SP-A). Therefore, in this study, a scale-up process for synthesizing SPs with high DSP content which can be used for synthesis of SP-A was studied. The solid catalyst used in this study was prepared by impregnation method. SO₄ was impregnated on a SO₄/ZrO₂ catalyst in an aqueous 1 M H₂SO₄ solution. The prepared catalysts were characterized by NH3-TPD. Catalytic activity was examined by measuring the conversion of phenol and styrene in a liquid-phase batch reactor. Almost 100% conversion of both phenol and styrene over 5-SO₄/ZrO₂ catalyst was obtained at a reaction temperature of 80 °C and a reaction time of 6 h. The amount of catalyst to the reactants was 2 wt%. Under the same reaction conditions, the selectivity of MSP, DSP, and TSP was 12.4%, 64.5%, and 23.1% respectively.
苯乙烯化酚（SPs）通常通过在酸催化剂存在下使苯乙烯和苯酚反应来合成。具有高含量二苯乙烯化酚（DSP）的 SPs 可用于制备苯乙烯化酚烷氧基化物（SP-A）。因此，在这项研究中，研究了一种可以用于合成 SP-A 的高 DSP 含量 SPs 的放大工艺。本研究中使用的固体催化剂是通过浸渍法制备的。将 SO₄浸渍在 SO₄/ZrO₂催化剂中在 1 M H₂SO₄水溶液中。通过 NH3-TPD 对制备的催化剂进行了表征。通过在液相间歇式反应器中测量苯酚和苯乙烯的转化率来检查催化活性。在反应温度为 80°C 和反应时间为 6 h 的情况下，5-SO₄/ZrO₂催化剂可获得几乎 100％的苯酚和苯乙烯转化率。反应物与催化剂的量为 2wt％。在相同的反应条件下，MSP、DSP 和 TSP 的选择性分别为 12.4％、64.5％和 23.1％。
