会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • Catalyst and process for production of acrylic acid
    • 用于生产丙烯酸的催化剂和方法
    • US20090043128A1
    • 2009-02-12
    • US12287082
    • 2008-10-06
    • Hiromi YunokiMichio TanimotoDaisuke Nakamura
    • Hiromi YunokiMichio TanimotoDaisuke Nakamura
    • C07C51/235B01J23/22B01J23/28
    • C07C51/252B01J23/002B01J23/28B01J23/8885B01J37/0009B01J37/0223B01J37/0236B01J2523/00C07C57/04B01J2523/17B01J2523/55B01J2523/68B01J2523/69
    • An object of the present invention is to provide: a catalyst for production of acrylic acid which is a catalyst usable for production of acrylic acid and is excellent in the catalytic performances such as catalytic activity and in the physical properties such as physical strength of the catalyst itself; and a process for production of acrylic acid using this catalyst. As a means of achieving this object, a catalyst for production of acrylic acid according to the present invention is a catalyst obtained by drying a mixed liquid of starting materials including molybdenum and vanadium as essential components to give a dried material, molding the dried material with a liquid binder, and calcining the resultant molding, with the catalyst being characterized in that an ignition loss ratio of the dried material is from 5 to 40% by mass. A process for production of acrylic acid according to the present invention comprises the step of: subjecting acrolein to a catalytic gas phase oxidation in the presence of a molecular oxygen, with the process being characterized in that the above catalyst for production of acrylic acid according to the present invention is used.
    • 本发明的目的在于提供:丙烯酸的制造用催化剂,其为可用于生产丙烯酸的催化剂,催化性能如催化活性以及催化剂的物理性能如催化剂的物理性能优异 本身; 以及使用该催化剂生产丙烯酸的方法。 作为实现该目的的手段,本发明的丙烯酸的制造用催化剂是通过干燥含有钼和钒的起始材料的混合液作为必要成分而得到的催化剂,得到干燥后的材料, 液体粘合剂,并煅烧所得到的模制品,催化剂的特征在于,干燥材料的灼烧损失率为5〜40质量%。 根据本发明的制备丙烯酸的方法包括以下步骤:在分子氧存在下使丙烯醛进行催化气相氧化,其特征在于上述用于生产丙烯酸的催化剂根据 使用本发明。
    • 3. 发明授权
    • Process for producing acrylic acid
    • 丙烯酸生产工艺
    • US06563000B1
    • 2003-05-13
    • US09576024
    • 2000-05-23
    • Hiromi YunokiMichio TanimotoDaisuke Nakamura
    • Hiromi YunokiMichio TanimotoDaisuke Nakamura
    • C07C5116
    • C07C51/252C07C57/04
    • A process for producing acrylic acid through vapor-phase catalytic oxidation of acrolein or acrolein-containing gas with molecular oxygen or a molecular oxygen-containing gas using a catalyst-filled fixed bed shell-and-tube reactor is provided, which is characterized in that plural catalysts of different activity levels which are prepared by changing the kind and/or amount of alkaline metal(s) therein are filled in the reaction tubes in such an arrangement that the activity levels rise from the gas-inlet side toward the gas-outlet side of said tubes. According to this process, not only yield and productivity of acrylic acid are improved but also excessive heat, accumulation in the catalyst layer can be inhibited and catalysts degradation under heat is prevented, resulting in prolongation of catalyst life.
    • 提供了一种通过使用催化剂填充的固定床管壳反应器通过气相催化氧化含有丙烯醛或含丙烯醛的气体与分子氧或含分子氧的气体制备丙烯酸的方法,其特征在于 通过改变其中的碱金属的种类和/或量来制备的不同活性水平的多种催化剂被填充在反应管中,活性水平从气体入口侧朝向气体出口 侧管。 根据该方法,不仅提高了丙烯酸的产率和生产率,而且过多的热量,可以抑制催化剂层中的积聚,并且防止催化剂在加热下的降解,导致催化剂寿命延长。