Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Koji Ueno0
Yoshitake Ishii0
Date of Patent
June 3, 2008
0Patent Application Number
116550630
Date Filed
January 19, 2007
0Patent Primary Examiner
Patent abstract
The objective of the present invention is to provide method for acrylic acid in which a generation of polymerized substance is prevented while acrylic acid is stored in a storage tank. A method of the present invention for producing acrylic acid, comprising storing acrylic acid in a storage tank, wherein a process liquid containing 50 mass % or more of acrylic acid is subjected to at least one filtering operation at 15 to 70° C. when the process liquid is supplied to the storage tank.
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