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    • 19. 发明授权
    • Catalyst and process for production of acrylic acid
    • 用于生产丙烯酸的催化剂和方法
    • US07030269B2
    • 2006-04-18
    • US10684285
    • 2003-10-13
    • Hiromi YunokiMichio Tanimoto
    • Hiromi YunokiMichio Tanimoto
    • C07C51/232
    • C07C51/252B01J21/12B01J23/002B01J23/8877B01J37/0018B01J37/0223B01J2523/00C07C57/04B01J2523/17B01J2523/55B01J2523/68B01J2523/69
    • There are disclosed: a catalyst which can be used for production of acrylic acid and is excellent in the catalytic performances (e.g. conversion of starting material, selectivity of aimed product) and further has very high physical strength; and a process for production of acrylic acid using this catalyst. The above catalyst for production of acrylic acid is a catalyst which is obtained by a process including the steps of: heating a mixed liquid of starting materials including molybdenum and vanadium as essential components; and then molding the resultant dried material with a liquid binder; and then calcining the resultant molding; with the catalyst being characterized in that the liquid binder is an aqueous liquid of 7.0 to 10.0 in pH. The above process for production of acrylic acid is a process which comprises the step of carrying out catalytic gas phase oxidation of acrolein in the presence of molecular oxygen, thereby producing the acrylic acid; with the process being characterized by using the above catalyst for production of acrylic acid according to the present invention.
    • 公开了可用于生产丙烯酸的催化剂,催化性能(例如起始原料的转化,目标产物的选择性)优异,并且还具有非常高的物理强度; 以及使用该催化剂生产丙烯酸的方法。 上述用于制备丙烯酸的催化剂是通过包括以下步骤的方法获得的催化剂:将包含钼和钒的原料的混合液作为必要成分加热; 然后用液体粘合剂将得到的干燥材料成型; 然后煅烧所得成型品; 催化剂的特征在于液体粘合剂是pH为7.0至10.0的水性液体。 上述丙烯酸的制造方法是在分子氧的存在下进行丙烯醛的催化气相氧化的工序,由此生成丙烯酸; 该方法的特征在于使用上述催化剂制备本发明的丙烯酸。