Process for producing catalyst for methacrylic acid synthesis
    1.
    发明申请
    Process for producing catalyst for methacrylic acid synthesis 有权
    用于生产甲基丙烯酸合成催化剂的方法

    公开(公告)号:US20070161819A1

    公开(公告)日:2007-07-12

    申请号:US11631107

    申请日:2005-06-24

    IPC分类号: C07C51/16 B01J27/19

    摘要: The present invention provides a method for producing a catalyst for use in synthesizing methacrylic acid which can produce methacrylic acid in high yield, the catalyst for use in synthesizing methacrylic acid which can produce methacrylic acid in high yield and a method for producing methacrylic acid in high yield through gas-phase catalytic oxidation of methacrolein with molecular oxygen. The method for producing the catalyst containing molybdenum and phosphorus for use in synthesizing methacrylic acid is composed of the steps of: preparing a slurry containing at least molybdenum and phosphorus and having specific viscosity in the range of 2.5×10−4 to 7.0×10−4 m2/s, which is a value obtained by dividing viscosity (unit: kg/(m·s)) by specific gravity (unit: kg/m3); obtaining a dried material by drying the slurry; and calcining the dried material at 300 to 500° C.

    摘要翻译: 本发明提供一种用于合成能够高产率生产甲基丙烯酸的甲基丙烯酸的催化剂的制备方法,用于合成能够高产率生产甲基丙烯酸的甲基丙烯酸的催化剂和高产甲基丙烯酸的方法 通过气相催化氧化甲基丙烯醛与分子氧产生。 用于合成甲基丙烯酸的含钼和磷的催化剂的制备方法包括以下步骤:制备至少含有钼和磷的浆料,其比粘度范围为2.5×10 -4 通过将粘度(单位:kg /(ms))除以比重得到的值(单位:kg / s)为7.0×10 -4个/秒, m 3); 通过干燥浆料获得干燥的材料; 并在300〜500℃下煅烧干燥物。

    Process for producing catalyst for methacrylic acid synthesis
    2.
    发明授权
    Process for producing catalyst for methacrylic acid synthesis 有权
    用于生产甲基丙烯酸合成催化剂的方法

    公开(公告)号:US07557061B2

    公开(公告)日:2009-07-07

    申请号:US11631107

    申请日:2005-06-24

    IPC分类号: B01J27/19 C07C51/16

    摘要: The present invention provides a method for producing a catalyst for use in synthesizing methacrylic acid which can produce methacrylic acid in high yield, the catalyst for use in synthesizing methacrylic acid which can produce methacrylic acid in high yield and a method for producing methacrylic acid in high yield through gas-phase catalytic oxidation of methacrolein with molecular oxygen. The method for producing the catalyst containing molybdenum and phosphorus for use in synthesizing methacrylic acid is composed of the steps of: preparing a slurry containing at least molybdenum and phosphorus and having specific viscosity in the range of 2.5×10−4 to 7.0×10−4 m2/s, which is a value obtained by dividing viscosity (unit: kg/(m·s)) by specific gravity (unit: kg/m3); obtaining a dried material by drying the slurry; and calcining the dried material at 300 to 500° C.

    摘要翻译: 本发明提供一种用于合成可以高产率生产甲基丙烯酸的甲基丙烯酸的催化剂的制备方法,用于合成可高产率生产甲基丙烯酸的甲基丙烯酸的催化剂和高产甲基丙烯酸的方法 通过气相催化氧化甲基丙烯醛与分子氧产生。 用于合成甲基丙烯酸的含有钼和磷的催化剂的制备方法包括以下步骤:制备至少含有钼和磷的浆料,其比粘度在2.5×10 -4至7.0×10 -4 m 2的范围内 / s,它是通过用粘度(单位:kg /(ms))除以比重(单位:kg / m3)获得的值; 通过干燥浆料获得干燥的材料; 并在300〜500℃下煅烧干燥物。

    Process for producing catalyst for methacrylic acid production, catalyst for methacrylic acid production, and process for producing methacrylic acid
    4.
    发明申请
    Process for producing catalyst for methacrylic acid production, catalyst for methacrylic acid production, and process for producing methacrylic acid 有权
    用于生产甲基丙烯酸生产催化剂的方法,用于甲基丙烯酸生产的催化剂,以及用于生产甲基丙烯酸的方法

    公开(公告)号:US20070032679A1

    公开(公告)日:2007-02-08

    申请号:US10577136

    申请日:2004-10-27

    摘要: A method for producing a catalyst containing given atoms in a given atomic proportion for use in producing methacrylic acid through gas-phase catalytic oxidation of methacrolein with molecular oxygen comprising the steps of: (i) preparing a solution or slurry containing at least molybdenum, phosphorus, and vanadium (liquid I); (ii) preparing a solution or slurry containing ammonium radical (liquid II); (iii) preparing a mixture of the liquid I and the liquid II by introducing one liquid (liquid PR) of the liquid I and the liquid II into a tank (tank A) and pouring the other liquid (liquid LA) on a continuous region in the surface of the liquid PR, the continuous region occupying 0.01 to 10% of the whole area of the surface of the liquid PR; and (iv) drying and calcining the resultant solution or slurry containing a catalyst precursor comprising all the catalyst constituents.

    摘要翻译: 一种制备含有给定原子比例的催化剂的方法,用于通过用分子氧气体催化氧化甲基丙烯醛来生产甲基丙烯酸,包括以下步骤:(i)制备至少包含钼,磷 ,和钒(液体I); (ii)制备含有铵基(液体II)的溶液或浆液; (iii)通过将液体I和液体II的一种液体(液体PR)引入罐(罐A)中并将另一种液体(液体LA)倒入连续区域来制备液体I和液体II的混合物 在液体PR的表面中,连续区域占液体PR表面的整个面积的0.01〜10% 和(iv)干燥和煅烧含有包含所有催化剂组分的催化剂前体的所得溶液或浆料。