Title: Hydroxy alkyl aldehyde making method
Application Number: 95118931 Application Date: 1995.11.22
Publication Number: 1133279 Publication Date: 1996.10.15
Approval Pub. Date: 2001.01.10 Granted Pub. Date: 2001.01.10
International Classifi-cation: C07C45/64;C07C47/19
Applicant(s) Name: Nippon Shokubai Co., Ltd. Address:
Inventor(s) Name: Yamamoto Kofumi;Shinto Hisakazu;Komeda Tadahiro
Attorney & Agent: LIN YUNHE
Abstract:
    In a process of producing hydroxyalkanal, a raw material, namely, an unsaturated aldehyde, is hydrated with a solution in the presence of a catalyst, and alcohol is added to the solution. A adding amount of the alcohol with respect to the unsaturated aldehyde is preferably in a range between 0.001 percent by weight and 10 percent by weight. According to this process, a consecutive reaction (side reaction) of a reaction product, namely, hydroxyalkanal, is curbed by the alcohol added to the solution, thereby making it possible to produce hydroxyalkanal at high selectivity out of a high-density unsaturated aldehyde solution. Therefore, the above process can trigger a reaction of an industrially advantageous unsaturated aldehyde solution, and thus improves the yield of hydroxyalkanal.
Time: 5
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