申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:US20040267045A1
公开(公告)日:2004-12-30
A first and second aspect of the invention relate to a process for producing a (meth)acrylic acid compound and a process for producing a (meth)acrylic ester, respectively. In particular, the second aspect of the invention relates to a process for (meth)acrylic ester production which includes a step in which by-products of a (meth)acrylic ester-yielding reaction are decomposed to recover a (meth)acrylic ester. A third aspect of the invention relates to a method of decomposing by-products of (meth)acrylic ester production in order to recover (meth)acrylic acid, a (meth)acrylic ester, and an alcohol through the decomposition of the by-products of (meth)acrylic ester production. A fourth and fifth aspect of the invention relate to a method of decomposing by-products of (meth)acrylic acid compound production in order to recover (meth)acrylic acid, a (meth)acrylic ester, and an alcohol through the decomposition of by-products of (meth)acrylic acid production and by-products of (meth)acrylic ester production.
本发明的第一和第二方面涉及分别生产(甲基)丙烯酸化合物和生产(甲基)丙烯酸酯的过程。特别是,本发明的第二方面涉及一种(甲基)丙烯酸酯生产过程,其中包括一步骤,通过该步骤,(甲基)丙烯酸酯产生反应的副产物被分解以回收(甲基)丙烯酸酯。本发明的第三方面涉及一种分解(甲基)丙烯酸酯生产的副产物以回收(甲基)丙烯酸、(甲基)丙烯酸酯和醇的方法,通过分解(甲基)丙烯酸酯生产的副产物来实现。本发明的第四和第五方面涉及一种分解(甲基)丙烯酸化合物生产的副产物以回收(甲基)丙烯酸、(甲基)丙烯酸酯和醇的方法,通过分解(甲基)丙烯酸和(甲基)丙烯酸酯生产的副产物来实现。