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Preparation of Styrenated Phenol Over SO2− 4/ZrO2 Catalyst in a Large-Scale Synthesis Process

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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. SO2− 4 was impregnated on a SO2− 4/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-SO2− 4/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.
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Keywords: SO2−4/ZrO2; Scale-Up; Solid Acid Catalyst; Styrenated Phenols

Document Type: Research Article

Affiliations: 1: Department of Chemical Engineering, Sunchon National University, Maegok-dong, Suncheon-si, Jeonnam 540-742, South Korea 2: SFC. Co., Ltd., 342-42, Yesusandan 1-ro, Yeosu-si, Jeonnam 550-280, South Korea

Publication date: February 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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