Process for the conversion of ethylene to vinyl chloride, and novel catalyst compositions useful for such process
    37.
    发明申请
    Process for the conversion of ethylene to vinyl chloride, and novel catalyst compositions useful for such process 审中-公开
    将乙烯转化为氯乙烯的方法和用于该方法的新型催化剂组合物

    公开(公告)号:US20050148805A1

    公开(公告)日:2005-07-07

    申请号:US11053688

    申请日:2005-02-08

    摘要: This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, and further permits ethane to be used as the C2 hydrocarbon feed with recycle of ethylene from the product stream to constitute the ethylene specified for the feed. This invention in another aspect concerns also a composition of matter, and a method for making the composition, wherein the composition is useful as a catalyst for the vinyl chloride process. The composition comprises a rare earth-containing material, with the proviso that the catalyst prepared therefrom is substantially free of iron and copper and with the further proviso that when cerium is present the catalyst further comprises at least one more rare earth element other than cerium.

    摘要翻译: 本发明是在催化剂存在下由含乙烯的进料,氧气和氯源生产氯乙烯的方法。 该方法允许在单个反应器系统中直接生产氯乙烯,并且进一步允许乙烷用作C 2 O 2烃进料,其中乙烯从产物流中再循环以构成针对进料的乙烯 。 在另一方面,本发明还涉及一种物质组合物和一种制备该组合物的方法,其中该组合物可用作氯乙烯方法的催化剂。 所述组合物包含含稀土材料,条件是由其制备的催化剂基本上不含铁和铜,另外条件是当存在铈时,催化剂还包含至少一种除铈以外的至少一种稀土元素。

    Conversion of direct process high-boiling residue to monosilanes
    39.
    发明授权
    Conversion of direct process high-boiling residue to monosilanes 有权
    直接工艺高沸点残余物转化为单硅烷

    公开(公告)号:US6013235A

    公开(公告)日:2000-01-11

    申请号:US356659

    申请日:1999-07-19

    CPC分类号: C01B33/107 C01B33/043

    摘要: A process for the production of monosilanes from the high-boiling residue resulting from the reaction of hydrogen chloride with silicon metalloid in a process typically referred to as the "direct process." The process comprises contacting a high-boiling residue resulting from the reaction of hydrogen chloride and silicon metalloid, with hydrogen gas in the presence of a catalytic amount of aluminum trichloride effective in promoting conversion of the high-boiling residue to monosilanes. The present process results in conversion of the high-boiling residue to monosilanes. At least a portion of the aluminum trichloride catalyst required for conduct of the process may be formed in situ during conduct of the direct process and isolation of the high-boiling residue.

    摘要翻译: 在通常称为“直接法”的过程中,由氯化氢与硅准金属反应产生的高沸点残留物制备单硅烷的方法。 该方法包括在催化量的三氯化铝存在下使氯化氢和准硅金属反应产生的高沸点残余物与氢气接触,有效促进高沸点残余物转化为单硅烷。 本方法导致高沸点残余物转化为单硅烷。 进行该方法所需的至少一部分三氯化铝催化剂可以在进行直接法和高沸点残余物的分离过程中就地形成。

    Process for producing acetic acid from methyl formate
    40.
    发明授权
    Process for producing acetic acid from methyl formate 失效
    甲酸甲酯生产乙酸的方法

    公开(公告)号:US5969183A

    公开(公告)日:1999-10-19

    申请号:US33083

    申请日:1998-03-02

    CPC分类号: C07C51/12

    摘要: Provided is a process for producing acetic acid by carrying out reaction of methyl formate in the presence of a Group VIII metal catalyst, at least one iodine compound, acetic acid and carbon monoxide, continuously drawing a reaction mixture from a reactor, introducing the reaction mixture into a flash distillation zone, separating an evaporated component and an unevaporated component, recycling the unevaporated component to the reaction zone, and obtaining acetic acid from the evaporated component, wherein formic acid and methyl formate are allowed to coexist in the flash distillation zone and/or the recycling zone. According to this process, no loss of methyl formate and formic acid is caused and only methyl formate is used as a starting material with basically requiring no supply of carbon monoxide.

    摘要翻译: 本发明提供一种通过在第VIII族金属催化剂,至少一种碘化合物,乙酸和一氧化碳的存在下进行甲酸甲酯的反应来生产乙酸的方法,从反应器中连续抽出反应混合物,引入反应混合物 分离蒸发的组分和未蒸发的组分,将未蒸发的组分再循环到反应区,并从蒸发的组分中获得乙酸,其中甲酸和甲酸甲酯允许共存于闪蒸区和/ 或回收区。 根据该方法,不会导致甲酸甲酯和甲酸的损失,并且仅甲酸甲酯用作起始原料,基本上不需要一氧化碳的供应。