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    Anhydrous diluent process for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid
    1.
    发明授权
    Anhydrous diluent process for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid 失效
    无水稀释法将丙烯氧化反应丙烯醛和丙烯醛氧化成丙烯酸

    公开(公告)号：US5183936A

    公开(公告)日：1993-02-02

    申请号：US781657

    申请日：1991-10-25

    申请人： William G. Etzkorn ,  Gordon G. Harkreader

    发明人： William G. Etzkorn ,  Gordon G. Harkreader

    IPC分类号： C07C45/35 ,  C07C51/25

    CPC分类号： C07C45/35 ,  C07C51/252

    摘要： The process for oxidation of propylene to acrolein and the oxidation of propylene to acrylic acid in two stages with acrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the use of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gas mixture to at least about 6.5 calories/(gram-mole) (.degree.C.) will improve selectively to desired products and will reduce both the waste water load on the system and by-product formation. Reduction in second-stage catalyst efficiency is compensated for by introducing steam to the feed to the second-stage, and/or by increasing the operating temperature of the second-stage, and/or by increasing the active surface area of the second-stage catalyst.

    摘要翻译： 通过使用基本上惰性的基本上无水的稀释气体来代替反应物流中的蒸汽，丙烯醛作为中间体将丙烯氧化成丙烯醛并将丙烯氧化成丙烯酸分两步进行丙烯醛的改进。 特别地，将基本上惰性的基本上无水的稀释剂用于将稀释气体混合物的复合热容提高至至少约6.5卡路里/（克 ​​- 摩尔）（℃））将有选择地改善所需产物，并且将减少 系统上的废水负荷和副产品形成。 通过将蒸汽引入到第二级的进料和/或通过增加第二级的操作温度和/或通过增加第二级的活性表面积来补偿第二级催化剂效率的降低 催化剂。

    Anhydrous diluents for the isobutylene oxidation reaction to methacrolein and methacrolein oxidation to methacrylic acid
    2.
    发明授权
    Anhydrous diluents for the isobutylene oxidation reaction to methacrolein and methacrolein oxidation to methacrylic acid 失效
    无水稀释剂用于将甲基丙烯醛和甲基丙烯醛氧化成甲基丙烯酸的异丁烯氧化反应

    公开(公告)号：US5155262A

    公开(公告)日：1992-10-13

    申请号：US780392

    申请日：1991-10-23

    申请人： William G. Etzkorn ,  Gordon G. Harkreader

    发明人： William G. Etzkorn ,  Gordon G. Harkreader

    IPC分类号： C07C45/35 ,  C07C51/25

    CPC分类号： C07C45/35 ,  C07C51/252

    摘要： The processes for oxidation of isobutylene to methacrolein and the oxidation of isobutylene to methacrylic acid in two stages with methacrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the uses of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gas mixture to at least about 6.5 calories/(gram-mole) (.degree.C.) will improve selectivity to desired products and will reduce both the waste water load on the system and by-product formation.

    摘要翻译： 通过使用基本上惰性的基本上无水的稀释气体来代替反应物流中的蒸汽来改进异丁烯氧化成甲基丙烯醛的方法和以异丁烯醛作为中间体在两个阶段中将异丁烯氧化成甲基丙烯酸。 特别地，将基本上惰性的基本上无水的稀释剂用于将稀释气体混合物的复合热容提高至至少约6.5卡路里/（克 ​​- 摩尔）（℃）的用途将提高对所需产物的选择性，并且将降低 系统上的废水负荷和副产品形成。

    Catalysts and processes for the manufacture of vinyl acetate
    4.
    发明授权
    Catalysts and processes for the manufacture of vinyl acetate 失效
    用于制造乙酸乙烯酯的催化剂和方法

    公开(公告)号：US5274181A

    公开(公告)日：1993-12-28

    申请号：US957143

    申请日：1992-10-07

    申请人： William J. Bartley ,  Simon Jobson ,  Gordon G. Harkreader ,  Melanie Kitson ,  Mike Lemanski

    发明人： William J. Bartley ,  Simon Jobson ,  Gordon G. Harkreader ,  Melanie Kitson ,  Mike Lemanski

    IPC分类号： B01J23/44 ,  B01J23/52 ,  B01J23/58 ,  B01J37/06 ,  C07C67/055 ,  C07C67/05

    CPC分类号： B01J23/58 ,  B01J23/44 ,  B01J23/52 ,  C07C67/055 ,  B01J35/0073 ,  B01J37/06

    摘要： A shell impregnated catalyst for use in the production of vinyl acetate from ethylene, acetic acid and an oxygen containing gas is provided. The catalyst has a productivity of greater than 661 grams of vinyl acetate per hour per liter of catalyst at 150.degree. C. and consists essentially of:(1) a catalyst support having a particle diameter from about 3 to about 7 mm and a pore volume of 0.2 to 1.5 ml per gram(2) palladium and gold distributed in the outermost 1.0 mm thick layer of the catalyst support particles, and(3) from about 3.5 to 9.5% by weight of potassium acetate.The catalyst is characterised by having a gold to palladium weight ratio in the range 0.60 to 1.25.

    摘要翻译： 提供了用于从乙烯，乙酸和含氧气体生产乙酸乙烯酯的壳体浸渍催化剂。 催化剂在150℃下每小时催化剂具有大于661克乙酸乙烯酯的生产率，并且基本上由以下组成：（1）具有约3至约7mm的粒径的催化剂载体和孔体积 分布在最外层1.0mm厚的催化剂载体颗粒中的每克（2）钯和金为0.2至1.5ml，和（3）约3.5至9.5重量％的乙酸钾。 催化剂的特征在于金与钯的重量比在0.60至1.25的范围内。

    Anhydrous diluents for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid
    5.
    发明授权
    Anhydrous diluents for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid 失效
    无水稀释剂用于丙烯氧化反应，丙烯醛和丙烯醛氧化成丙烯酸

    公开(公告)号：US5198578A

    公开(公告)日：1993-03-30

    申请号：US542697

    申请日：1990-06-25

    申请人： William G. Etzkorn ,  Gordon G. Harkreader

    发明人： William G. Etzkorn ,  Gordon G. Harkreader

    IPC分类号： C07C45/35 ,  C07C51/25

    CPC分类号： C07C45/35 ,  C07C51/252

    摘要： The processes for oxidation of propylene to acrolein and the oxidation of propylene to acrylic acid in two stages with acrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the use of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gaas mixture to at least about 6.5 calories/(gram-mole) (.degree.C.) will improve selectivity to desired products and will reduce both the waste water load on the system and by-product formation.

    摘要翻译： 通过使用基本上惰性的基本上无水的稀释气体来代替反应物流中的蒸汽来改进丙烯氧化成丙烯醛的方法和丙烯到丙烯酸两阶段丙烯醛作为中间体的方法。 特别地，使用将稀释剂混合物的复合热容提高至至少约6.5卡路里/（克 ​​- 摩尔）（℃）的基本上惰性的基本上无水的稀释剂将提高对所需产物的选择性，并且将减少 系统上的废水负荷和副产品形成。