Dehydrocyanation of aliphatic dinitriles
    21.
    发明授权
    Dehydrocyanation of aliphatic dinitriles 失效
    脂肪族二腈的脱氢氰化

    公开(公告)号:US5352819A

    公开(公告)日:1994-10-04

    申请号:US63677

    申请日:1993-05-20

    IPC分类号: C07C253/30 C07C293/30

    CPC分类号: C07C253/30

    摘要: Branched saturated dinitrile byproducts, e.g. 2-methylglutaronitrile, 2-ethylsuccinonitrile and mixtures thereof, are converted into useful ethylenic nitriles by dehydrocyanating same, in vapor phase, in the presence of an at least partially acidified cation exchange substrate, notably a molecular sieve, clay, acid oxide or lamellar phosphate.

    摘要翻译: 支链饱和二腈副产物,例如 2-甲基戊二腈,2-乙基琥珀腈及其混合物通过在气相中,在至少部分酸化的阳离子交换基质,特别是分子筛,粘土,酸性氧化物或层状磷酸盐存在下,通过其脱氢氰化而转化为有用的烯属腈 。