利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.022 秒)

    Process for producing p,p'-biphenol
    2.
    发明授权
    Process for producing p,p'-biphenol 失效
    生产p，p'-联苯酚的方法

    公开(公告)号：US4891453A

    公开(公告)日：1990-01-02

    申请号：US247333

    申请日：1988-09-21

    申请人： Michio Tanaka ,  Yoshito Kurano ,  Katsuo Taniguchi ,  Masayasu Ishibashi

    发明人： Michio Tanaka ,  Yoshito Kurano ,  Katsuo Taniguchi ,  Masayasu Ishibashi

    IPC分类号： C07C37/07 ,  C07C37/50 ,  C07C39/15

    CPC分类号： C07C37/07 ,  C07C37/50

    摘要： A process is disclosed which is capable of producing p,p'-biphenol of high purity by the dealkylation reaction of 3,3',5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl and which yet allows isobutene to be recovered in high yield. The process performs the dealkylation reaction of 3,3',5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl in the presence of an acid catalyst using as a solvent a saturated hydrocarbon having a boiling point of 190.degree. C. or above, an alicyclic hydrocarbon having a boiling point of 190.degree. C. or above, a hydrocarbon with an iodine value of no more than 1, sulfolane, or a mixture of these solvents. Also disclosed is a process for producing p,p'-biphenol from a mixture of 2,6-di-t-butyl-phenol and 3,3',5,5'-tetra-t-butyl-4,4'-diphenoquinone or from a mixture of 2,6-di-t-butylphenol, 3,3',5,5'-tetra-t-butyl-4,4'-diphenoquinone and 3,3',5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl. In this process, the synthesis of 3,3',5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl by the redox reaction between 2,6-di-t-butylphenol and 3,3',5,5'-tetra-t-butyl-4,4'-diphenoquinone and the production of p,p'-biphenol by the dealkylation reaction of 3,3',5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl are performed at one stage in the presence of both an acid catalyst and a solvent at a temperature of 120.degree.-280.degree. C.

    Process of producing isopropylnaphthols
    3.
    发明授权
    Process of producing isopropylnaphthols 失效
    生产异丙基萘酚的方法

    公开(公告)号：US5003113A

    公开(公告)日：1991-03-26

    申请号：US440212

    申请日：1989-11-22

    申请人： Michio Tanaka ,  Masayasu Ishibashi ,  Katsuo Taniguchi

    发明人： Michio Tanaka ,  Masayasu Ishibashi ,  Katsuo Taniguchi

    IPC分类号： C07C37/08 ,  C07C37/84 ,  C07C39/14 ,  C07C409/12

    CPC分类号： C07C409/12 ,  C07C37/08 ,  C07C37/84 ,  C07C407/00

    摘要： In a process of producing isopropylnaphthols by oxidizing diisopropylnaphthalenes with molecular oxygen in a liquid phase to provide a reaction mixture which contains therein diisopropylnaphthalene monohydroperoxides and then acid decomposing the monohydroperoxides to isopropylnaphthols, the improvement comprising separating an organic layer from the reaction mixture, adding lower aliphatic alcohols of 1-4 carbons to the organic layer, crystallizing the diisopropylnaphthalenes while allowing the diisopropylnaphthalene monohydroperoxides to remain dissolved in the lower aliphatic alcohols, thereby to separate the monohydroperoxides from the diisopropylnaphthalenes.A further improvement in the process comprises crystallizing the isopropylnaphthols from aromatic hydrocarbons of 6-12 carbons.

    METHOD FOR PRODUCING ALKYLATED AROMATICE COMPOUND, METHOD FOR PRODUCING CUMENE, AND METHOD FOR PRODUCING PHENOL
    7.
    发明申请
    METHOD FOR PRODUCING ALKYLATED AROMATICE COMPOUND, METHOD FOR PRODUCING CUMENE, AND METHOD FOR PRODUCING PHENOL 有权
    用于生产烷基化芳构化合物的方法，生产碳酸钙的方法和生产酚醛的方法

    公开(公告)号：US20110201846A1

    公开(公告)日：2011-08-18

    申请号：US13125163

    申请日：2009-10-22

    申请人： Kenji Fujiwara ,  Tsuneyuki Ohkubo ,  Terunori Fujita ,  Shinobu Aoki ,  Masayasu Ishibashi ,  Masao Imai ,  Kozo Yasuda

    发明人： Kenji Fujiwara ,  Tsuneyuki Ohkubo ,  Terunori Fujita ,  Shinobu Aoki ,  Masayasu Ishibashi ,  Masao Imai ,  Kozo Yasuda

    IPC分类号： C07C37/08 ,  C07C1/20

    CPC分类号： C07C37/08 ,  B01J23/80 ,  B01J29/7007 ,  B01J29/7038 ,  C07C2/867 ,  C07C15/085 ,  C07C407/00 ,  C07C409/10 ,  Y02P20/52 ,  Y02P20/588 ,  C07C39/04

    摘要： It is an object of the present invention to provide a method for producing an alkylated aromatic compound and a method for producing cumene that can greatly reduce the amount of solid acid substance, and a method for producing phenol including a step of producing cumene by the method for producing cumene. A method for producing an alkylated aromatic compound according to the present invention includes a step (i) of producing a reaction product (a1) containing the alkylated aromatic compound and water by the reaction of an aromatic compound, a ketone, and hydrogen using a metal component containing at least one metallic element selected from the group consisting of copper, nickel, cobalt, and rhenium and a solid acid substance; a step (ii) of forming a dehydrated product (a2) from at least a portion of the reaction product (a1) by removing at least a portion of the water in the reaction product (a1); and a step (iii) of producing a reaction product (a3) containing the alkylated aromatic compound by bringing at least a portion of the dehydrated product (a2) into contact with a solid acid substance.

    摘要翻译： 本发明的目的是提供一种烷基化芳族化合物的制造方法和能够大幅度减少固体酸性物质的量的异丙基苯的制造方法，以及生产苯酚的方法，其包括通过该方法制造枯烯的工序 用于生产异丙基苯。 根据本发明的烷基化芳族化合物的制造方法包括使用金属制造含有烷基化芳香族化合物和水的反应产物（a1）的步骤（i），所述反应产物通过芳族化合物，酮和氢的反应而生成 含有选自铜，镍，钴和铼中的至少一种金属元素的组分和固体酸物质; 通过除去反应产物（a1）中的至少一部分水，从至少一部分反应产物（a1）形成脱水产物（a2）的步骤（ii）; 和通过使脱水产物（a2）的至少一部分与固体酸物质接触来制造含有烷基化芳香族化合物的反应产物（a3）的步骤（iii）。

    Process for producing aromatic carboxylic acid
    9.
    发明授权
    Process for producing aromatic carboxylic acid 失效
    芳香族羧酸的制造方法

    公开(公告)号：US06506931B1

    公开(公告)日：2003-01-14

    申请号：US09656997

    申请日：2000-09-07

    申请人： Masayasu Ishibashi ,  Hiroshi Tomita

    发明人： Masayasu Ishibashi ,  Hiroshi Tomita

    IPC分类号： C07C51255

    CPC分类号： C07C51/265 ,  C07C63/26

    摘要： A process for producing an aromatic carboxylic acid by a liquid phase oxidation of an alkylaromatic compound with molecular oxygen in a reaction solvent comprising a lower aliphatic carboxylic acid in the presence of an oxidation catalyst, in which an aromatic carboxylic acid having an improved hue of the powdery product thereof and exhibiting an improved light transmittance when dissolved in an aqueous solution of a base can be produced efficiently in a simple manner by suppressing contamination due to the intermediates and by-products formed by side reactions, the said process comprising performing the liquid phase oxidation of the alkylaromatic compound in the presence of a hydrogen gas-treated liquid containing the catalyst.

    摘要翻译： 在氧化催化剂存在下，通过在含有低级脂肪族羧酸的反应溶剂中通过烷基芳族化合物与分子氧进行液相氧化来制备芳族羧酸的方法，其中具有改进的色调的芳族羧酸 通过抑制由副反应形成的中间体和副产物引起的污染，可以以简单的方式有效地制备溶解在碱的水溶液中时提高其透光度的粉末状产物，所述方法包括进行液相 在含有催化剂的氢气处理液体存在下，烷基芳族化合物的氧化。