Process for preparation of hydroperoxides
    1.
    发明授权
    Process for preparation of hydroperoxides 失效
    氢过氧化物的制备方法

    公开(公告)号:US06476276B2

    公开(公告)日:2002-11-05

    申请号:US09907933

    申请日:2001-07-19

    IPC分类号: C07C40900

    CPC分类号: C07C407/00 C07C409/10

    摘要: A process for preparing hydroperoxides which comprises oxidizing hydrocarbon by a gas containing oxygen in the presence of a specific compound and converting them selectively to corresponding hydroperoxides. The specific compound is the compound that can capture radicals. The preferable example may be a compound selected from radicals of oxygen, nitrogen, phosphorus, sulfur, carbon or silicon or a compound that forms radicals of these in the reaction system. The present invention can be applied to oxidation of hydrocarbons including arylalkylhydrocarbons such as cumene, m-diisopropylbenzene, p-diisopropylbenzene, 1,3,5-triisopropylbenzene, isopropylnaphthalene, diisopropylnaphthalene, isopropylbiphenyl, diisopropylbiphenyl, etc.

    摘要翻译: 一种制备氢过氧化物的方法,其包括在特定化合物存在下,通过含氧气体氧化烃,并将其选择性地转化成相应的氢过氧化物。具体化合物是可以捕获自由基的化合物。 优选的实例可以是选自氧,氮,磷,硫,碳或硅的基团的化合物或在反应体系中形成这些基团的化合物。本发明可以应用于包括芳基烷基烃如烃基的烃类的氧化 间二异丙基苯,对二异丙基苯,1,3,5-三异丙基苯,异丙基萘,二异丙基萘,异丙基联苯,二异丙基联苯等。

    Method for purifying crude naphthalenedicarboxylic acid
    4.
    发明授权
    Method for purifying crude naphthalenedicarboxylic acid 失效
    粗萘二甲酸纯化方法

    公开(公告)号:US5872284A

    公开(公告)日:1999-02-16

    申请号:US860622

    申请日:1997-07-09

    CPC分类号: C07C51/487

    摘要: The invention provides a method for purifying a crude naphthalenedicarboxylic acid comprising the steps of mixing a crude naphthalenedicarboxylic acid and a water/alcohol solvent to esterify a part of the naphthalenedicarboxylic acid, thereby dissolving a naphthalenedicarboxylic ester into the solvent, and then contacting the resulting reaction mixture with hydrogen in the presence of a hydrogenation catalyst to hydrogenate impurities which are contained in the crude naphthalenedicarboxylic acid and which are capable of being hydrogenated, thereby dissolving and removing hydrogenation products into the water/alcohol solvent. A mixture of a naphthalene dicarboxylic acid and a naphthalenedicarboxylic ester with reduced impurity contents, or a high-purity naphthalenedicarboxylic acid can be obtained.

    摘要翻译: PCT No.PCT / JP96 / 03180 Sec。 371日期1997年7月9日第 102(e)日期1997年7月9日PCT提交1996年10月30日PCT公布。 第WO97 / 17318号公报 日期:1997年5月15日本发明提供了一种纯化萘二甲酸粗品的方法,包括将粗萘二甲酸与水/醇溶剂混合以使部分萘二甲酸酯化,从而将萘二甲酸酯溶解在溶剂中,然后 使所得反应混合物与氢气在氢化催化剂存在下接触,氢化含有粗萘二甲酸的杂质,并能够被氢化,从而将氢化产物溶解并除去到水/醇溶剂中。 可以获得具有降低的杂质含量的萘二甲酸和萘二甲酸酯的混合物或高纯度萘二甲酸。

    Process for preparing hydroperoxides
    5.
    发明授权
    Process for preparing hydroperoxides 有权
    制备氢过氧化物的方法

    公开(公告)号:US06291718B1

    公开(公告)日:2001-09-18

    申请号:US09254176

    申请日:1999-03-02

    IPC分类号: C07C40700

    CPC分类号: C07C407/00 C07C409/10

    摘要: A process for preparing hydroperoxides which comprises oxidizing hydrocarbon by a gas containing oxygen in the presence of a specific compound and converting them selectively to corresponding hydroperoxides. The specific compound is the compound that can capture radicals. The preferable example may be a compound selected from radicals of oxygen, nitrogen, phosphorus, sulfur, carbon or silicon or a compound that forms radicals of these in the reaction system. The present invention can be applied to oxidation of hydrocarbons including arylalkylhydrocarbons such as cumene, m-diisopropylbenzene, p-diisopropylbenzene, 1,3,5-triisopropylbenzene, isopropylnaphthalene, diisopropylnaphthalene, isopropylbiphenyl, diisopropylbiphenyl, etc.

    摘要翻译: 一种制备氢过氧化物的方法,其包括在特定化合物存在下通过含氧气体氧化烃,并将它们选择性地转化成相应的氢过氧化物。 具体化合物是可以捕获自由基的化合物。 优选的实例可以是选自氧,氮,磷,硫,碳或硅的基团的化合物或在反应体系中形成这些基团的化合物。 本发明可应用于包括芳基烷基烃如枯烯,间二异丙基苯,对二异丙基苯,1,3,5-三异丙基苯,异丙基萘,二异丙基萘,异丙基联苯,二异丙基联苯等烃类的氧化。

    Method of oxidizing secondary alkyl substituted naphtalenes and a
process of producing isopropylnaphthols
    6.
    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

    CPC分类号: C07C37/08 C07C409/12

    摘要: 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.