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    • 3. 发明授权
    • Process and apparatus for the synthesis of butynediol
    • 用于合成丁炔二醇的方法和装置
    • US5444169A
    • 1995-08-22
    • US169663
    • 1993-12-20
    • Frank Wiessner
    • Frank Wiessner
    • B01J23/72C07B61/00C07C29/38C07C33/046C07C31/18
    • C07C33/046C07C29/38Y02P20/584
    • The conversion of formaldehyde and acetylene in the presence of a suspension catalyst to butynediol is usually performed in a cascade of reactors, wherein the separation of the catalyst from the product solution takes place per individual reactor. This can be performed by filters installed in the reactor or by suitable filter apparatuses outside the reactor. A part of the catalyst present in the reactors can be drawn off and replaced by regenerated and/or fresh catalyst. The catalyst drawn off from the reactors can advantageously be fed to a regeneration. The replacement of the catalyst in the reactor can take place discontinuously or continuously. In the reactors of the cascade, a catalyst amount of 50-200 g, preferably of 75-125 g, per liter of reaction solution is used.
    • 在悬浮催化剂存在下,甲醛和乙炔在丁炔二醇中的转化通常在级联的反应器中进行,其中催化剂与产物溶液的分离是在每个反应器中进行的。 这可以通过安装在反应器中的过滤器或反应器外部的合适的过滤装置进行。 存在于反应器中的催化剂的一部分可以被排出并被再生和/或新鲜的催化剂代替。 从反应器排出的催化剂可以有利地进料到再生。 反应器中的催化剂的替代可以不连续或连续地进行。 在级联的反应器中,使用每升反应溶液的催化剂量为50-200g,优选75-125g。