申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:US20210139408A1
公开(公告)日:2021-05-13
A method for preparing a dicyanoalkane may omit a filtration for a catalyst after a cyanation reaction can by carrying out the cyanation reaction in a state in which precipitation of a metal catalyst is suppressed. A method for preparing a dicyanoalkane may involve cyanating one or more aliphatic dicarboxylic acids and/or salt(s) thereof with an ammonia source in the presence of a predetermined compound and a catalyst, wherein, in the cyanation, the amount of the predetermined compound is maintained at a predetermined amount or more with respect to the catalyst.
制备二氰基烷的方法可以在氰化反应后省略对催化剂的过滤,可以通过在抑制金属催化剂沉淀的状态下进行氰化反应来实现。制备二氰基烷的方法可能涉及使用一种或多种脂肪族二羧酸和/或其盐与氨源在预定化合物和催化剂的存在下进行氰化,其中,在氰化过程中,预定化合物的量相对于催化剂保持在预定量或更多。