知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

230 records (took 0.021 seconds)

    Method of oxidizing secondary alkyl substituted naphtalenes and a process of producing isopropylnaphthols
    43.
    发明授权
    Method of oxidizing secondary alkyl substituted naphtalenes and a process of producing isopropylnaphthols 失效
    氧化仲烷基取代萘的方法和生产异丙基萘酚的方法

    公开(公告)号：US4906790A

    公开(公告)日：1990-03-06

    申请号：US242163

    申请日：1988-09-09

    Applicant: Masaharu Ishiguro ,  Hisaya Miki ,  Nobuya Hirokane

    Inventor： Masaharu Ishiguro ,  Hisaya Miki ,  Nobuya Hirokane

    IPC: C07C37/08 ,  C07C39/14 ,  C07C409/08 ,  C07C409/12

    CPC classification number: C07C37/08 ,  C07C409/12

    Abstract: A method of oxidizing secondary alkyl substituted naphthalenes with molecular oxygen in a liquid phase to hydroperoxides, carbinols or mixtures of these, which comprises: oxidizing the secondary alkyl substituted naphthalenes in the presence of an aromatic hydrocarbon having a fused ring which contains at least one methylene group therein in amounts of not more than about 1000 ppm based on the secondary alkyl substituted napththalene used.A process of producing isopropylnaphthols is also disclosed, which comprises: oxidizing diisopropylnaphthalenes with molecular oxygen in a liquid phase to diisopropylnaphthalene monohydroperoxides in the presence of (a) either an aromatic hydrocarbon having a fused ring which contains at least one methylene group therein, or a paladium catalyst soluble in the reaction mixture, and (b) an organic polar compound such as acetonitrile; and then acid-decomposing the diisopropylnaphthalene monohydroperoxide to the isopropylnaphthol.

    Liquid phase oxidation of organic compounds to their hydroperoxides
    44.
    发明授权
    Liquid phase oxidation of organic compounds to their hydroperoxides 失效
    将有机化合物的液相氧化成其氢过氧化物

    公开(公告)号：US4602118A

    公开(公告)日：1986-07-22

    申请号：US669898

    申请日：1984-11-09

    Applicant: Mau-Song Chou ,  Keith W. Wohltman

    Inventor： Mau-Song Chou ,  Keith W. Wohltman

    IPC: C07C409/08 ,  C07C409/10 ,  C07C179/02

    CPC classification number: C07C409/08 ,  C07C407/00 ,  C07C409/10 ,  C07C2101/14

    Abstract: This invention deals with a process for the production of hydroperoxides from their corresponding hydrocarbons via the use of certain ketones, particularly aryl ketones, generally having strong substituent electrophilic groups, as promoters. These promoters increase the rate of thermal oxidation and improve selectivity to the hydroperoxide products.

    Abstract translation: 本发明涉及通过使用通常具有强取代基亲电基团的某些酮，特别是芳基酮作为助催化剂从其相应的烃生产氢过氧化物的方法。 这些促进剂增加了热氧化速率并提高了对过氧化氢产物的选择性。

    Process for the preparation of araliphatic dihydroperoxides
    45.
    发明授权
    Process for the preparation of araliphatic dihydroperoxides 失效
    制备芳族二氢过氧化物的方法

    公开(公告)号：US4271321A

    公开(公告)日：1981-06-02

    申请号：US82661

    申请日：1979-10-09

    Applicant: Heinz W. Voges

    Inventor： Heinz W. Voges

    IPC: C07C407/00 ,  C07C67/00 ,  C07C409/08 ,  C07C409/12 ,  C07C409/16 ,  C07C179/047

    CPC classification number: C07C409/12 ,  C07C407/00 ,  C07C407/003 ,  Y02P20/582

    Abstract: Process for the preparation of araliphatic dihydroperoxides which comprises oxidizing a hydrocarbon of the formula: ##STR1## with oxygen or an oxygen-containing gas, (2) extracting the resulting dihydroperoxide with an alkali metal hydroxide solution of a concentration of 1-12% thereby producing an aqueous extract and an organic raffinate, (3) neutralizing any alkali metal hydroxide remaining in the organic raffinate with carbon dioxide, thereby producing alkali metal carbonate or bicarbonate in the raffinate, (4) washing the alkali metal carbonate or bicarbonate remaining in the raffinate with wash-water, (5) extracting from the wash-water used in step (4) any dissolved hydroperoxides remaining therein with a hydrocarbon solvent, and (6) optionally recycling the hydroperoxide-containing hydrocarbon solvent into the process. The resulting wash-water effluent is free of polluting and contaminating materials.

    Abstract translation: 制备芳脂族二氢过氧化物的方法，其包括用氧或含氧气体氧化下式的烃：（2）用浓度为1-12％的碱金属氢氧化物溶液萃取所得的二氢过氧化物，由此 生产水提取物和有机萃余液，（3）用二氧化碳中和残留在有机萃余液中的任何碱金属氢氧化物，从而在萃余液中制备碱金属碳酸盐或碳酸氢盐，（4）洗涤剩余的碱金属碳酸盐或碳酸氢盐 使用洗涤水的残液，（5）从步骤（4）中使用的洗涤水中提取残留在其中的烃溶剂的任何溶解的氢过氧化物，和（6）任选将含氢过氧化物的烃溶剂再循环到该方法中。 得到的洗涤水流出物没有污染和污染的物质。

    Process for oxidation of hydrocarbons
    46.
    发明授权
    Process for oxidation of hydrocarbons 失效
    碳氢化合物的氧化方法

    公开(公告)号：US4263448A

    公开(公告)日：1981-04-21

    申请号：US025505

    申请日：1979-03-30

    Applicant: James Leacock

    Inventor： James Leacock

    IPC: C07C29/03 ,  C07C29/50 ,  C07C45/34 ,  C07C409/04 ,  C07C409/08 ,  C07C409/10 ,  C07F5/04 ,  C07C67/05

    CPC classification number: C07C29/50 ,  C07C29/03 ,  C07C407/00 ,  C07C409/04 ,  C07C409/08 ,  C07C409/10 ,  C07C45/34 ,  C07C67/05 ,  C07F5/04

    Abstract: An oxidizable hydrocarbon is oxidized in a reaction zone at elevated temperature in the presence of a liquid reaction medium by introducing the hydrocarbon and a feed stream containing molecular oxygen to the reaction zone under conditions sufficient to oxidize at least a portion of the hydrocarbon; withdrawing at least a portion of the liquid reaction medium from the reaction zone; passing at least a portion of the withdrawn liquid reaction medium to an oxygen injection zone located external to the reaction zone; contacting the liquid in said oxygen-injection zone with a gas stream containing molecular oxygen under conditions sufficient to form a two-phase gas/liquid mixture; and passing said two-phase gas/liquid mixture to the reaction zone as the feed of molecular oxygen thereto.

    Abstract translation: 通过在足以氧化至少一部分烃的条件下将烃和含有分子氧的进料流引入反应区，在液体反应介质的存在下，在升高的温度下，在可反应区域中氧化可氧化烃; 将液体反应介质的至少一部分从反应区抽出; 将至少一部分抽出的液体反应介质通入位于反应区外部的氧气注入区; 在足以形成两相气体/液体混合物的条件下，使所述氧气注入区中的液体与含有分子氧的气流接触; 并将所述两相气体/液体混合物作为其分子氧的进料通入反应区。

    Process for producing aromatic primary hydroperoxide
    47.
    发明授权
    Process for producing aromatic primary hydroperoxide 失效
    制备芳香族主要过氧化氢的方法

    公开(公告)号：US4255592A

    公开(公告)日：1981-03-10

    申请号：US79330

    申请日：1979-09-27

    Applicant: Yoshio Kawai ,  Koichi Kida ,  Hideo Ikarashi ,  Tsukasa Toki ,  Yoshiharu Suzuki

    Inventor： Yoshio Kawai ,  Koichi Kida ,  Hideo Ikarashi ,  Tsukasa Toki ,  Yoshiharu Suzuki

    IPC: C07C67/00 ,  C07C407/00 ,  C07C409/08 ,  C07C179/035

    CPC classification number: C07C409/08 ,  C07C407/00

    Abstract: An aromatic primary hydroperoxide is produced by oxidizing a methyl-substituted aromatic compound in a liquid phase with a molecular oxygen-containing gas at a temperature of 80.degree.-150.degree. C. under a pressure of the atmospheric to 100 kg/cm.sup.2 gage in the presence of 8-300 parts by weight of an aliphatic tertiary hydroperoxide per 100 parts by weight of the methyl-substituted aromatic compound. The oxidation reaction is promoted, an aromatic primary hydroperoxide content of the reaction products is increased, whereas by-products are reduced, and a selectivity to the aromatic primary hydroperoxide is considerably increased.

    Abstract translation: 通过在大气压至100kg / cm2的压力下，在80〜150℃的温度下，用分子氧气体在液相中氧化甲基取代的芳香族化合物来制备芳族伯氢过氧化物 每100重量份甲基取代的芳族化合物存在8-300重量份脂族叔氢过氧化物。 促进氧化反应，反应产物的芳族伯氢过氧化物含量增加，而副产物减少，并且对芳族伯氢过氧化物的选择性显着增加。

    Hydroperoxyisopropylphenyl carbonates
    48.
    发明授权
    Hydroperoxyisopropylphenyl carbonates 失效
    氢过氧化异丙基苯基碳酸酯

    公开(公告)号：US4202833A

    公开(公告)日：1980-05-13

    申请号：US38133

    申请日：1979-05-11

    Applicant: Sheng-Hong A. Dai

    Inventor： Sheng-Hong A. Dai

    IPC: C07C409/08 ,  C07C409/12 ,  C07C69/00

    CPC classification number: C07C409/08 ,  C07C407/00 ,  C07C409/12

    Abstract: Isopropylphenyl esters are converted to di- or trihydric phenols via a novel autoxidation of the esters at high conversion rates to the corresponding hydroperoxyisopropylphenyl esters in the presence of a catalyst combination comprising at least two members selected from the group consisting of (i) a metal phthalocyanine; (ii) a di-tertiary alkyl peroxide; and (iii) a tertiary alkyl hydroperoxide.Rearrangement of the hydroperoxyisopropylphenyl esters to the corresponding hydroxyphenyl esters and the hydrolysis of the latter compounds provides the phenols in overall yields (from the starting esters) heretofore not obtainable. Novel bis(hydroperoxyisopropylphenyl)carbonates are described which are attractive intermediates for the intermediate bisphenol carbonate or the final hydroquinone hydrolysis product.

    Abstract translation: 在包含至少两种选自（i）金属酞菁的组分的催化剂组合物存在下，通过将酯以高转化率的新型自氧化转化成相应的氢过氧化异丙基苯基酯，将异丙基苯基酯转化成二元或三元酚 ; （ii）二叔烷基过氧化物; 和（iii）叔烷基氢过氧化物。 氢过氧化异丙基苯基酯与相应的羟基苯基酯的重排和后者化合物的水解提供了迄今为止不可获得的总产率的苯酚（来自起始酯）。 描述了新型双（氢过氧化异丙基苯基）碳酸酯，其是中间体双酚碳酸酯或最终氢醌水解产物的有吸引力的中间体。

    Oxidation of diethylbenzenes
    49.
    发明授权
    Oxidation of diethylbenzenes 失效
    二乙基苯的氧化

    公开(公告)号：US4169210A

    公开(公告)日：1979-09-25

    申请号：US496644

    申请日：1974-08-12

    Applicant: William E. Archibald

    Inventor： William E. Archibald

    IPC: C07B61/00 ,  B01J23/00 ,  C07C67/00 ,  C07C407/00 ,  C07C409/08 ,  C07C179/02

    CPC classification number: C07C409/08 ,  C07C407/00

    Abstract: A process for the oxidation of diethylbenzene comprising contacting an unpurified diethylbenzene feedstock with from about 0.01% to about 5.0% by weight of an alkaline earth metal oxide and concurrently and/or in a separate subsequent step contacting the diethylbenzene feedstock with a molecular oxygen-containing gas at a temperature between about 100.degree. C. and 170.degree. C. This process enables oxidation of diethylbenzenes to diethylbenzene hydroperoxide with a high degree of selectivity without the necessity of prior purification of the diethylbenzene feedstock, for example, by distillation or absorption techniques.

    Abstract translation: 一种用于二乙基苯氧化的方法，包括使未纯化的二乙基苯原料与约0.01重量％至约5.0重量％的碱土金属氧化物接触，并且同时和/或在单独的随后步骤中使二乙苯原料与含分子氧的 气体温度在约100℃至170℃之间。该方法可以高度选择性地将二乙基苯氧化成二乙基苯氢过氧化物，而不需要例如通过蒸馏或吸收技术预先纯化二乙基苯。

Patent Agency Ranking