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研究了以工业品甲基叔丁基醚(MTBE)和对苯二酚(HQ)为原料,在磷酸催化下,合成TBHQ的工艺参数。对催化剂的活性、原料的配比和反应时间等进行了优化考察。当对苯二酚:甲基叔丁基醚:磷酸=1:1:0.5(mol),反应温度为125℃,反应时间3.5h,TBHQ的收率达85.7%。与传统方法相比,该方法具有价廉、操作简单的特点,具有较高的开发、应用价值。用MTBE作原料合成TBHQ未见有关文献具体报道。
The technical parameters of synthesizing TBHQ under the catalysis of phosphoric acid were studied by using methyl tert-butyl ether (MTBE) and hydroquinone (HQ) as raw materials. The catalyst activity, the ratio of raw materials and reaction time were investigated. When the hydroquinone: methyl tert-butyl ether: phosphoric acid = 1: 1: 0.5 (mol), the reaction temperature was 125 ℃ and the reaction time was 3.5h, the yield of TBHQ reached 85.7%. Compared with the traditional method, this method has the characteristics of low cost, simple operation and high development and application value. MTBE as raw materials for the synthesis of TBHQ no specific reports on the literature.