Manufacture of butynediol
    2.
    发明授权
    Manufacture of butynediol 失效
    丁炔二醇的制造

    公开(公告)号:US4067914A

    公开(公告)日:1978-01-10

    申请号:US671384

    申请日:1976-03-29

    CPC分类号: C07C33/046

    摘要: In a process for the manufacture of butynediol by the reaction of formaldehyde and acetylene in aqueous solution, in which a catalyst is used which is produced by the action of acetylene and formaldehyde on copper (II) compounds, the catalyst becomes inactive when it is treated for a relatively long period with formaldehyde at elevated temperature in the absence of acetylene so that it must constantly remain in contact with acetylene-containing solution if its temperature is above 70.degree. C.

    摘要翻译: 在通过甲醛和乙炔在水溶液中反应制造丁炔二醇的方法中,其中使用通过乙炔和甲醛作用于铜(II)化合物而产生的催化剂,当处理时催化剂变得不活动 在不存在乙炔的情况下,甲醛在高温下持续相当长的时间,如果其温度高于70℃,则必须与乙炔溶液一直保持接触。