Preparation of dialkoxybutenes
    1.
    发明授权
    Preparation of dialkoxybutenes 失效
    DIALKOXYBUTENES的制备

    公开(公告)号:US5159120A

    公开(公告)日:1992-10-27

    申请号:US714584

    申请日:1991-06-13

    CPC分类号: C07C41/06

    摘要: Dialkoxybutenes are selectively prepared in high yields by reacting 1,3-butadiene with an alcohol in the presence of oxygen and a catalytically effective amount of solid particulates which comprise a catalytically active phase deposited onto particles of a support therefor, such catalytically active phase comprising at least one Group VIII noble metal first component, at least one tellurium, selenium and/or sulfur second component, and, optionally, at least one bismuth, antimony, copper and/or tin third component.

    摘要翻译: 通过在氧的存在下使1,3-丁二烯与醇反应并且催化有效量的固体颗粒包含沉积在其载体的颗粒上的催化活性相来选择性地制备二烷氧基丁烯,所述催化活性相包含在 至少一种VIII族贵金属第一组分,至少一种碲,硒和/或硫第二组分,以及任选的至少一种铋,锑,铜和/或锡第三组分。

    Process for monohydroxylation of phenolic compounds
    3.
    发明授权
    Process for monohydroxylation of phenolic compounds 失效
    酚类化合物的单羟基化方法

    公开(公告)号:US5331103A

    公开(公告)日:1994-07-19

    申请号:US22896

    申请日:1993-02-26

    CPC分类号: C07C37/60

    摘要: The present invention relates to a process for monohydroxylation of phenolic compounds which allows an increase in the amount of para isomer.The invention relates to a process for monohydroxylation of a phenolic compound having a hydrogen atom in the para position to the hydroxyl group, for the purpose of obtaining a dihydroxylated aromatic compound by reacting the initial phenolic compound with hydrogen peroxide in the presence of an effective amount of a strong acid and of a ketonic compound, said process being characterized by the fact that the reaction is carried out in the presence of an effective amount of a polar aprotic organic solvent with a basicity such that it has a "donor number" below 25.

    摘要翻译: 本发明涉及允许增加对位异构体量的酚类化合物的单羟基化方法。 本发明涉及一种在对位具有氢原子的羟基单羟基化的方法,其目的是通过在有效量存在下使初始酚类化合物与过氧化氢反应获得二羟基化芳族化合物 的强酸和酮化合物,所述方法的特征在于反应在有效量的极性非质子有机溶剂的存在下进行,碱性使得其具有低于25的“供体数” 。

    Hydroxylation of phenolic compounds
    4.
    发明授权
    Hydroxylation of phenolic compounds 失效
    酚类化合物的羟基化

    公开(公告)号:US5414153A

    公开(公告)日:1995-05-09

    申请号:US42527

    申请日:1993-04-05

    CPC分类号: C07C37/60

    摘要: Phenolic compounds, e.g., the phenols and phenol ethers, are selectively hydroxylated whereby the amounts of the final product para isomer are enhanced, for example in favor of hydroquinone versus pyrocatechol in the event of the hydroxylation of phenol, by reacting such phenolic compounds with hydrogen peroxide, advantageously in a polar, aprotic, organic solvent reaction medium, in the presence of a catalytically effective amount of a sulfonated polymer and a cocatalytically effective amount of an aromatic ketone compound.

    摘要翻译: 酚类化合物,例如苯酚和酚醚被选择性羟基化,由此通过使这种酚类化合物与氢气反应,最终产物对异构体的量得到增强,例如有利于氢醌与邻苯二酚在苯酚羟基化反应的情况下 过氧化物,有利地在极性,非质子,有机溶剂反应介质中,在催化有效量的磺化聚合物和助催化有效量的芳族酮化合物的存在下。

    Oxidation of aromatic compounds substituted by oxidizable alkyl moieties
    5.
    发明授权
    Oxidation of aromatic compounds substituted by oxidizable alkyl moieties 失效
    由可氧化烷基部分取代的芳族化合物的氧化

    公开(公告)号:US5354919A

    公开(公告)日:1994-10-11

    申请号:US84028

    申请日:1993-06-29

    摘要: Aromatic compounds bearing oxidizable alkyl substituents, e.g., alkoxylated and/or hydroxylated such substrates, notably the phenolics/cresols, are selectively oxidized, e.g., into hydroxybenzaldehydes, by reacting same with appropriate oxidizing agents, in an aqueous reaction medium, in the presence of a catalytically effective amount of a solid, palladium-containing oxidation catalyst (optionally containing a cocatalytically effective amount of tin, germanium, tellurium and/or copper).

    摘要翻译: 具有可氧化烷基取代基的芳香族化合物,例如,烷氧基化和/或羟基化的这些底物,特别是酚类/甲酚,通过在适当的氧化剂中,在水性反应介质中,在存在 催化有效量的固体含钯氧化催化剂(任选地含有助催化有效量的锡,锗,碲和/或铜)。

    Method for eliminating organophosphorus compounds contained in a gas or liquid
    7.
    发明授权
    Method for eliminating organophosphorus compounds contained in a gas or liquid 有权
    消除气体或液体中含有的有机磷化合物的方法

    公开(公告)号:US06656363B1

    公开(公告)日:2003-12-02

    申请号:US09463323

    申请日:2000-05-16

    IPC分类号: B01D1500

    摘要: The invention concerns a method for eliminating organophosphorus compounds contained in a gas or liquid whereby said gas or liquid is contacted with alumina and/or titanium oxide. According to one aspect of the present invention, a process is provided for disposing of a trivalent and/or pentavalent organophosphorus compound which comprises at least one carbon atom and is contained in a liquid. The process comprises contacting the liquid with titanium oxide and/or alumina, the alumina having a specific surface of at least 70 m2/g and a total pore volume of at least 0.3 cm3/g. The alumina and/or titanium dioxide can be doped with alkaline metals, alkaline-earth metals and/or rare earths. The organophosphorus compound can include phosphines, phosphinites, phosphites, phosphonites, phosphinates and phosphonates. The liquid which is treated can originate from a dimerization reaction of acrylonitrile in the presence of catalysts containing phosphorus, or from a hydrocyanation reaction of butadiene in the presence of catalysts containing phosphorus.

    摘要翻译: 本发明涉及一种消除气体或液体中含有的有机磷化合物的方法,其中所述气体或液体与氧化铝和/或氧化钛接触。 根据本发明的一个方面,提供一种处理包含至少一个碳原子并包含在液体中的三价和/或五价有机磷化合物的方法。 该方法包括使液体与氧化钛和/或氧化铝接触,所述氧化铝具有至少70m 2 / g的比表面积和至少0.3cm 3 / g的总孔体积。 氧化铝和/或二氧化钛可以掺杂碱金属,碱土金属和/或稀土。 有机磷化合物可以包括膦,次膦酸盐,亚磷酸盐,亚膦酸盐,次膦酸盐和膦酸盐。 被处理的液体可以源于丙烯腈在含磷催化剂存在下的二聚反应,或者是在含有磷的催化剂存在下由丁二烯的氢氰化反应。