The invention relates to a process for the preparation of alkylarylsulfonates by
a) reaction of a C
4
-olefin mixture over a metathesis catalyst for the preparation of an olefin mixture comprising 2-pentene and/or 3-hexene, and optional removal of 2-pentene and/or 3-hexene,
b) dimerization of the 2-pentene and/or 3-hexene obtained in stage a) over a dimerization catalyst to give a mixture containing C
10-12
-olefins, and optional removal of the C
10-12
-olefins,
c) reaction of the C
10-12
-olefin mixtures obtained in stage b) with an aromatic hydrocarbon in the presence of an alkylating catalyst to form alkylaromatic compounds, where, prior to the reaction, additional linear olefins may be added, d) sulfonation of the alkylaromatic compounds obtained in stage c), and neutralization to give alkylarylsulfonates, where, prior to the sulfonation, linear alkylbenzenes may additionally be added, e) optional mixing of the alkylarylsulfonates obtained in stage d) with linear alkylarylsulfonates.
本发明涉及一种制备烷基芳基
磺酸盐的过程,包括以下步骤:a) 在交换催化剂的作用下,将C4烯烃混合物反应,以制备包含
2-戊烯和/或
3-己烯的烯烃混合物,并可选择性地去除
2-戊烯和/或
3-己烯,b) 在二聚化催化剂的作用下,将步骤a)中获得的
2-戊烯和/或
3-己烯二聚化,以得到含有C10-12烯烃的混合物,并可选择性地去除C10-12烯烃,c) 在烷基化催化剂的存在下,将步骤b)中获得的C10-12烯烃混合物与
芳香烃反应,形成烷基芳香化合物,在反应之前,还可以添加额外的线性烯烃,d) 对步骤c)中获得的烷基芳香化合物进行磺化,并中和以得到烷基芳基
磺酸盐,在磺化之前,还可以额外添加线性烷基苯,e) 可选择性地将步骤d)中获得的烷基芳基
磺酸盐与线性烷基芳基
磺酸盐混合。