The catalyst concentrated sulfonic acid xylenesulfonic acid, one of the compared nine catalysts, possesses high catalysis for the synthesis of dixylyl methane.
即在原料配比n(二甲苯)∶n(甲醛)=8∶1,浓硫酸质量分数10025%,反应温度120~140℃和时间233h的条件下,二(二甲苯基)甲烷收率可达773%。
Through orthogonal design experiments, the effective regularities of synthetic condition s on the yield rate and bi-nucleus ratio of bi-phenolic methane are discussed .
利用正交实验,研究了苯酚和甲醛在酸性催化剂的作用下合成二酚基甲烷的反应。
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