申请人:ATLANTIC RICHFIELD COMPANY
公开号:EP0191208A1
公开(公告)日:1986-08-20
Bis-(alpha-alkylbenzyl)ethers are obtained by the reaction at elevated temperature of the corresponding alpha alkylbenzyl alcohol in the presence of an acidic clay catalyst having a surface area of at least 100 m2/g, quenching of the catalyst and recovery of the desired ether by distillation directly from the reaction mixture containing the quenched catalyst. Where the starting material is alkyl methylbenzyl alcohol, it may be provided in the form of an aromatic rich distilland product mixture derived from the ethyl benzene hydroperoxide epoxidation of an olefinically unsaturated compound such as propylene.
双(α-烷基苄基)醚的制备方法是:相应的α-烷基苄醇在表面积至少为 100 m2/g 的酸性粘土催化剂存在下进行升温反应,催化剂淬灭,从含有淬灭催化剂的反应混合物中直接蒸馏回收所需的醚。如果起始原料是烷基甲基苄醇,则可以由乙苯过氧化氢环氧化烯烃不饱和化合物(如丙烯)得到的富芳烃馏出物混合物的形式提供。