一种双酚A合成催化剂及双酚A的制备方法
本发明提供一种双酚A合成催化剂及双酚A的制备方法,所述催化剂包括:阳离子交换树脂和改性分子筛,所述改性分子筛表面连接有改性基团,所述改性基团为选自巯基烷基和胺基烷基中的任意一种或两种。改性后的分子筛可以促进反应过程中活性中间体丙酮碳阳离子的生成,提高反应速率,加快其与苯酚反应生成双酚A。采用混合催化剂同时兼顾了盐酸法活性高和树脂法纯度高的优点,产物中游离的酸分少,相比盐酸催化法的产品质量高。
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