Production of methyl and ethylamines with rhodium-iron catalysts
    4.
    发明授权
    Production of methyl and ethylamines with rhodium-iron catalysts 失效
    用铑 - 铁催化剂生产甲基和乙胺

    公开(公告)号:US4250116A

    公开(公告)日:1981-02-10

    申请号:US105406

    申请日:1979-12-19

    CPC分类号: C07C209/26

    摘要: A heterogeneous process for selectively producing monoamines in which the nitrogen is bonded only to methyl, ethyl, hydrogen or combinations thereof which comprises contacting a mixture of carbon monoxide, hydrogen and a nitrogen-containing compound selected from the group consisting of ammonia, nitric oxide and mixtures thereof with a heterogeneous solid catalyst comprising rhodium and iron. The monoamines of the invention are formed in a collective amount of at least 50 weight percent of the total amine products of the reaction.

    摘要翻译: 用于选择性地生产单胺的非均相方法,其中氮仅与甲基,乙基,氢或其组合键合,其包括使一氧化碳,氢气和含氮化合物的混合物与氨,一氧化氮和 其与包含铑和铁的非均相固体催化剂的混合物。 本发明的单胺以总反应的总胺产物的至少50重量%的总量形成。

    Catalysts and processes for the manufacture of vinyl acetate
    5.
    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

    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。

    Catalysts for alkenyl alkanoate production
    7.
    发明授权
    Catalysts for alkenyl alkanoate production 失效
    烯基链烷酸酯生产催化剂

    公开(公告)号:US5179057A

    公开(公告)日:1993-01-12

    申请号:US793129

    申请日:1991-11-18

    摘要: This invention provides a process for producing improved catalysts for the production of alkenyl alkanoates by the reaction of an alkene, an alkanoic acid and an oxygen-containing gas. The catalysts contain palladium, gold and a potassium promoter and are characterized by a reduced sodium content which results in increased catalyst activity. The reduced sodium content is obtained by washing the catalyst, at a particular intermediate point in its production, with a cation exchange solution.

    摘要翻译: 本发明提供了通过烯烃,链烷酸和含氧气体的反应制备用于制备链烷酸链烯酯的改进的催化剂的方法。 催化剂含有钯,金和钾促进剂,其特征在于钠含量降低,导致催化剂活性增加。 降低的钠含量是通过在其生产的特定中间点用阳离子交换溶液洗涤催化剂获得的。

    Process for the preparation of ethylene glycol
    8.
    发明授权
    Process for the preparation of ethylene glycol 失效
    制备乙二醇的方法

    公开(公告)号:US4677234A

    公开(公告)日:1987-06-30

    申请号:US697928

    申请日:1985-02-04

    CPC分类号: C07C29/149

    摘要: A process for the preparation of ethylene glycol by the vapor phase catalytic hydrogenation of at least one of di(lower alkyl) oxalate and lower alkyl glycolate in the presence of a hydrogenation catalyst comprising a carrier, which catalyst is suitable for the hydrogenation of alkyl oxalate and alkyl glycolate to ethylene glycol, wherein the improvement lies in preparing the catalyst by contacting the carrier with a cooper ammonium carbonate complex medium and reducing the catalytically-active copper moiety to its active copper form.

    摘要翻译: 在含有载体的氢化催化剂存在下,通过气相催化氢化二(低级烷基)草酸二烷基酯和低级烷基乙醇酸酯的方法制备乙二醇的方法,该催化剂适用于氢化草酸烷基酯 和烷基乙醇酸酯与乙二醇,其中改进在于通过使载体与配位碳酸铵复合介质接触并将催化活性铜部分还原为其活性铜形式来制备催化剂。

    Hydrogenolysis of polyalkylene glycols to produce monoethylene glycol
monoalkyl ethers, monoethylene glycol and ethanol
    9.
    发明授权
    Hydrogenolysis of polyalkylene glycols to produce monoethylene glycol monoalkyl ethers, monoethylene glycol and ethanol 失效
    聚亚烷基二醇的氢解产生单乙二醇单烷基醚,单乙二醇和乙醇

    公开(公告)号:US4649225A

    公开(公告)日:1987-03-10

    申请号:US736528

    申请日:1985-05-21

    摘要: This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating the polyalkylene glycol with molecular hydrogen in the presence of a hydrogenation catalyst containing iridium to produce at least one of monoethylene glycol monoethyl ether, monoethylene glycol monomethyl ether, monoethylene glycol and ethanol. Monoethylene glycol monoethyl ether can be produced in significant amounts by employing the process of this invention.

    摘要翻译: 本发明涉及一种选择性裂解聚亚烷基二醇,例如二甘醇,其中含有至少一个醚基团的碳 - 氧共价键,并且独立地在碳 - 碳共价键处,通过加热聚亚烷基二醇 在含有铱的氢化催化剂的存在下使用分子氢,以生产单乙二醇单乙醚,单乙二醇单甲醚,单乙二醇和乙醇中的至少一种。 通过采用本发明的方法可以大量生产单乙二醇单乙醚。