Title: Method for producing pure grade propenoic acid
Application Number: 95118098 Application Date: 1995.11.29
Publication Number: 1149573 Publication Date: 1997.05.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07C51/44,C07C51/487,C07C57/07
Applicant(s) Name: Rohm Address:
Inventor(s) Name: W. Bowl, T. A. Halo
Attorney & Agent: SUN AI
Abstract:
     This invention provides a method for production of high-purity acrylic acid with various residual aldehydes less than 10 ppm. These method sequences by optimum continuous selection reduce several groups of amines, for example, selected by application of acrylic aldehyde and sugar aldehyde and may also be advantageously proceeded under the presence of maleic acid and maleanhydride impurity.
Time: 7
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