申请人:Phillips Petroleum Company
公开号:US05446227A1
公开(公告)日:1995-08-29
A process for co-production of an alkenyl aromatic compound such as, for example, styrene and t-butylstyrene, and an oxygenated sulfur-containing compound such as, for example, a sulfoxide or a sulfone is disclosed which comprises: (1) contacting, in the presence or absence of a catalyst, an .alpha.-methyl benzylic hydroperoxide with an organic sulfide compound to produce a mixture of an .alpha.-methyl benzylic hydroxide and an oxygenated sulfur-containing compound; (2) separating the .alpha.-methyl benzylic hydroxide from the sulfur-containing compound; (3) contacting the .alpha.-methyl benzylic hydroxide with a base to convert the .alpha.-methyl benzylic hydroxide to the alkenyl aromatic compound; and optionally, (4) recovering the alkenyl aromatic compound from the oxygenated sulfur-containing compound. The sulfoxide produced can be oxidized to a sulfone. The contacting of the .alpha.-methyl benzylic hydroxide with a base can also be carried out before the .alpha.-methyl benzylic hydroxide is separated from the oxygenated sulfur-containing compound followed by separation of the sulfur-containing compound.
本发明公开了一种联合生产烯丙基芳香化合物,例如苯乙烯和叔丁基苯,以及含氧硫化合物,例如亚砜或磺酮的方法,包括:(1)在催化剂的存在或缺席下,将α-甲基苄基过氧化氢与有机硫化合物接触,以产生α-甲基苄基羟基和含氧硫化合物的混合物;(2)从硫化合物中分离出α-甲基苄基羟基;(3)将α-甲基苄基羟基与碱接触,将α-甲基苄基羟基转化为烯丙基芳香化合物;并且可选地,(4)从含氧硫化合物中回收烯丙基芳香化合物。产生的亚砜可以氧化为磺酮。将α-甲基苄基羟基与碱接触也可以在从含氧硫化合物中分离出硫化合物之前进行,然后分离硫化合物。