| 摘要 |
PROBLEM TO BE SOLVED: To prevent the adhesion, deposition and accumulation of solid products to enable the stable maintenance of the high recovery of (meth)acrylic acid, a (meth)acrylate and an alcohol and a stable continuous operation over a long period, when Michael addition reaction products produced as by-products in a process for producing the (meth)acrylic acid and/or the (meth)acrylate are decomposed by a reaction distillation method to recover valuable products. SOLUTION: This method for decomposing the by-products on the production of the (meth)acrylic acid compounds, comprising introducing the by-products on the production of the (meth)acrylic acid and/or the by-products on the production of the (meth)acrylate into a reactor equipped with a distillation tower to thermally decompose and simultaneously distil the by-products to recover the valuable compounds, is characterized by using a distillation tower 1 having disk and doughnut type trays 2A, 2B therein as the distillation tower. COPYRIGHT: (C)2003,JPO
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