申请人:——
公开号:US20040010161A1
公开(公告)日:2004-01-15
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.
该发明涉及一种制备烷基芳基磺酸盐的方法,包括a) 在一种交换催化剂上将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,并可选择去除2-戊烯和/或3-己烯,b) 在一种二聚化催化剂上使阶段a)中获得的2-戊烯和/或3-己烯二聚化,得到含有C10-12-烯烃的混合物,并可选择去除C10-12-烯烃,c) 在存在烷基化催化剂的情况下,将阶段b)中获得的C10-12-烯烃混合物与芳香烃反应,形成烷基芳烃化合物,在反应之前,还可以添加额外的直链烯烃,d) 对阶段c)中获得的烷基芳烃化合物进行磺化,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烃,e) 可选择将阶段d)中获得的烷基芳基磺酸盐与线性烷基芳基磺酸盐混合。