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28 条记录 (耗时 0.023 秒)

    Ammoxidation catalyst
    3.
    发明授权
    Ammoxidation catalyst 失效
    氨氧化催化剂

    公开(公告)号：US4018713A

    公开(公告)日：1977-04-19

    申请号：US652933

    申请日：1976-01-27

    申请人： Ronald D. Bushick ,  Howard P. Angstadt

    发明人： Ronald D. Bushick ,  Howard P. Angstadt

    IPC分类号： B01J23/22 ,  B01J21/04 ,  B01J21/16 ,  B01J23/04

    CPC分类号： C07C253/28 ,  B01J23/22

    摘要： An ammoxidation process for the preparation of nitriles by reaction of m- or p-xylene with ammonia and oxygen using as catalyst an .alpha.-alumina supported vanadiumalkali metal bronze promoted with niobium, whereby a high proportion of dinitrile product is obtained. The invention also embodies the niobium promoted catalyst.

    摘要翻译： 通过m-或对二甲苯与氨和氧的反应来制备腈的氨氧化方法使用用铌促进的α-氧化铝负载的钒碱金属青铜作为催化剂，从而获得高比例的二腈产物。 本发明还体现了铌促进催化剂。

    Ammoxidation process
    4.
    发明授权
    Ammoxidation process 失效
    氨氧化工艺

    公开(公告)号：US3959337A

    公开(公告)日：1976-05-25

    申请号：US568360

    申请日：1975-04-15

    申请人： Ronald D. Bushick ,  Howard P. Angstadt

    发明人： Ronald D. Bushick ,  Howard P. Angstadt

    IPC分类号： B01J23/22 ,  C07C255/51 ,  C07C120/14

    CPC分类号： C07C253/28 ,  B01J23/22

    摘要： An ammoxidation process for preparing nitriles from m- and p-xylene whereby the formation of carbon oxides is held to a minimum which comprises reacting the xylene and ammonia at a temperature of from about 375.degree.C. to about 500.degree.C. and in the presence of added oxygen, the molar ratio of ammonia to xylene being about 3:1 or less, the molar ratio of oxygen to xylene being about 3:1 or less, the volume percent concentration of the feed being preferably about 3% to 10% hydrocarbon, 7% to 20% ammonia, and 10% to 20% oxygen, and the catalyst for said reaction comprising at least about 1 to 10% by weight of a vanadium bronze supported on .alpha.-alumina.

    摘要翻译： 用于从间二甲苯和对二甲苯制备腈的氨氧化方法，其中碳氧化物的形成被保持至最小，其包括使二甲苯和氨在约375℃至约500℃的温度下反应，并且在 加入的氧的存在，氨与二甲苯的摩尔比为约3:1或更低，氧与二甲苯的摩尔比为约3:1或更低，进料的体积百分比浓度优选为约3％至10％ 烃，7％至20％的氨和10％至20％的氧，并且用于所述反应的催化剂包含至少约1至10重量％的负载在α-氧化铝上的钒青铜。

    Ammoxidation process
    5.
    发明授权
    Ammoxidation process 失效
    氨氧化工艺

    公开(公告)号：US3959336A

    公开(公告)日：1976-05-25

    申请号：US568356

    申请日：1975-04-15

    申请人： Ronald D. Bushick ,  Howard P. Angstadt

    发明人： Ronald D. Bushick ,  Howard P. Angstadt

    IPC分类号： B01J23/22 ,  C07C255/51 ,  C07C120/14

    CPC分类号： C07C253/28 ,  B01J23/22

    摘要： An ammoxidation process for the preparation of nitriles by reaction of m- or p-xylene with ammonia and oxygen using as catalyst an .alpha.-alumina supported vanadiumalkali metal bronze promoted with niobium, whereby a high proportion of dinitrile product is obtained. The invention also embodies the niobium promoted catalyst.

    摘要翻译： 通过m-或对二甲苯与氨和氧的反应来制备腈的氨氧化方法，使用用铌促进的α-氧化铝负载的钒碱金属青铜作为催化剂，由此得到高比例的二腈产物。 本发明还体现了铌促进催化剂。

    Salt-tolerant alkyl aryl sulfonate compositions for use in enhanced oil recovery processes
    9.
    发明授权
    Salt-tolerant alkyl aryl sulfonate compositions for use in enhanced oil recovery processes 失效
    用于增强采油工艺中的耐盐烷基芳基磺酸盐组合物

    公开(公告)号：US4699214A

    公开(公告)日：1987-10-13

    申请号：US913438

    申请日：1986-09-30

    申请人： Howard P. Angstadt

    发明人： Howard P. Angstadt

    IPC分类号： C07C2/68 ,  C09K8/592 ,  E21B43/22 ,  E21B43/24

    CPC分类号： C07C309/00 ,  C07C2/68 ,  C09K8/592 ,  Y10S507/936

    摘要： A process is provided for the enhanced recovery of oil with steam in reservoirs containing high concentrations of dissolved salts, wherein certain diaryl sulfonated surfactants are employed in conjunction with the steam which posses high tolerance for said salts. These surfactants are comprised of compositions having (1) two aromatic rings in their nucleus, such as diphenyl, diarylalkane, or naphthalene groups; (2) at least one alkyl group having 18 or more carbon atoms; and a second alkyl group having from 1-4 carbon atoms; and (3) two functional groups comprising at least one and preferably two sulfonate groups, although one of the sulfonate groups may be replaced with a carboxyl or hydroxyl groups. At least about 65% of the diaromatic compounds should contain two functional groups, preferably sulfonates, with the remainder comprising a monofunctional-substituted compound containing either a sulfonate group, a carboxylate group, or an hydroxyl group.In a further embodiment of this invention, the diaryl sulfonated surfactants may be admixed with other co-surfactants and/or hydrotropes and silicates.

    摘要翻译： 提供了一种方法，用于在含有高浓度溶解盐的储层中用蒸汽强化回收油，其中某些二芳基磺化表面活性剂与对所述盐具有高耐受性的蒸汽结合使用。 这些表面活性剂由具有（1）它们的核中的两个芳环的组合物组成，例如二苯基，二芳基烷烃或萘基; （2）至少一个具有18个或更多个碳原子的烷基; 和具有1-4个碳原子的第二个烷基; 和（3）包含至少一个并且优选两个磺酸酯基团的两个官能团，尽管磺酸酯基中的一个可以被羧基或羟基取代。 至少约65％的二芳族化合物应包含两个官能团，优选磺酸盐，其余的包含含有磺酸酯基，羧酸酯基或羟基的单官能取代的化合物。 在本发明的另一个实施方案中，二芳基磺化表面活性剂可以与其它助表面活性剂和/或水溶助长剂和硅酸盐混合。