Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Distillation method and distillation apparatus
 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. 
Nippon Shokubai Co., Ltd.
C B C Y
C07C B01D C07C Y10S
inventional inventional inventional additional
Hiroo Osamu Kazukiyo Mamoru Yukihiro
Iwato Dodo Arakawa Takamura Matsumoto