1-butene/ butene-1有区别吗?(丁二烯抽提)? 丁二烯抽提工艺描述中,一句话里同时出现1-butene/ butene-1这两个词,该如何处理呢?从原文看应该是同一种物质,但为何要用不同表达呢?文中还有其它地方有过类似表达,不是笔误。 production of high purity 1-butene requires two super fractionation stages. in the first stage....... in the second stage, 1-butene is separated from the isobutane and lighter components. the system is designed in order to recover 85% of the 1-butene with 99% butene-1 product purity. 查看更多