公开(公告)号：US06294056B1

公开(公告)日：2001-09-25

申请号：US09253036

申请日：1999-02-19

申请人： Yukihiro Matsumoto ,  Kazukiyo Arakawa ,  Osamu Dodo ,  Hiroo Iwato ,  Mamoru Takamura

发明人： Yukihiro Matsumoto ,  Kazukiyo Arakawa ,  Osamu Dodo ,  Hiroo Iwato ,  Mamoru Takamura

IPC分类号： B01D314

CPC分类号： C07C51/44 ,  B01D3/008 ,  C07C67/54 ,  Y10S203/22 ,  C07C57/04 ,  C07C69/54

摘要： In a method for distilling (meth)acrylic acid and/or (meth)acrylic ester, the method has the step of uniformly distributing a supply liquid in a distillation tower over an entirety of a horizontal cross sectional area in the distillation tower. A distillation apparatus for distilling (meth)acrylic acid and/or (meth)acrylic ester in a distillation tower has a supply element for supplying the supply liquid into the distillation tower. The supply element is formed with at least two supply ports through which the liquid is supplied into the distillation tower.

摘要翻译： 在蒸馏（甲基）丙烯酸和/或（甲基）丙烯酸酯的方法中，该方法具有在蒸馏塔中在蒸馏塔中在整个水平横截面积上均匀分配供应液体的步骤。 用于在蒸馏塔中蒸馏（甲基）丙烯酸和/或（甲基）丙烯酸酯的蒸馏装置具有用于将供应液供应到蒸馏塔中的供应元件。 供应元件形成有至少两个供应端口，液体通过该供应端口供应到蒸馏塔中。

公开(公告)号：US06214174B1

公开(公告)日：2001-04-10

申请号：US09015053

申请日：1998-01-28

申请人： Hajime Matsumoto ,  Kazukiyo Arakawa

发明人： Hajime Matsumoto ,  Kazukiyo Arakawa

IPC分类号： B01D316

CPC分类号： B01J19/325 ,  B01D3/22 ,  B01D3/326 ,  B01D53/18 ,  B01J19/305 ,  C07C51/44 ,  Y10S203/22 ,  C07C57/04

摘要： A distillation column is arranged so that a liquid hole which allows liquid containing a polymerizable organic compound to flow from on a tray supporting member downward is formed in a part of the tray supporting member, for example, a support ring, so that substantial retention of the liquid on the tray supporting member is avoided. Therefore, the liquid, such as crude acrylic acid, is allowed to smoothly flow down from on surfaces of a tray and the tray supporting member, thereby causing no substantial retention of the liquid. As a result, polymerization which tends to occur when the liquid is retained on the surfaces of the tray and the tray supporting member thereby being heated is effectively prevented, and the polymerizable organic compound is efficiently purified.

摘要翻译： 蒸馏塔布置成使托盘支撑构件（例如支撑环）的一部分中形成允许含有可聚合有机化合物的液体从托盘支撑构件向下流动的液体孔，从而大大保持 避免了托盘支撑件上的液体。 因此，允许诸如粗丙烯酸的液体从托盘和托盘支撑构件的表面上顺利地向下流动，从而不会使液体基本上保留。 结果，有效地防止了当液体保持在托盘和托盘支撑构件的表面上而被加热时倾向于发生的聚合，并且可聚合的有机化合物被有效地纯化。