知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.009 秒)

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

    公开(公告)号：US4288637A

    公开(公告)日：1981-09-08

    申请号：US143474

    申请日：1980-04-24

    申请人： Fujihisa Matsunaga ,  Yoshiyuki Shinohara ,  Isamu Okubo ,  Takayuki Nakamura ,  Seiichi Tanaka

    发明人： Fujihisa Matsunaga ,  Yoshiyuki Shinohara ,  Isamu Okubo ,  Takayuki Nakamura ,  Seiichi Tanaka

    IPC分类号： C07B61/00 ,  B01J27/00 ,  B01J31/00 ,  C07C39/02 ,  C07C67/00 ,  C07C407/00 ,  C07C409/08 ,  C07C409/10 ,  C07C409/12 ,  C07C179/035

    CPC分类号： C07C39/02 ,  C07C407/00 ,  C07C409/08 ,  C07C409/10 ,  C07C409/12

    摘要： Disclosed is a process for the preparation of aromatic hydroperoxides comprising contacting two liquid phases comprising an oily phase containing an aromatic compound having a secondary alkyl group and a basic aqueous phase under agitation with a molecular oxygen-containing gas in the presence of a copper compound catalyst such as an inorganic salt or organic acid salt of copper, thereby to oxidize the aromatic compound to a corresponding aromatic hydroperoxide, wherein the liquid phase catalytic oxidation is carried out while maintaining the catalyst concentration in the liquid phases at 0.005 to 10 ppm as the copper atom and the pH value of the basic aqueous phase at 7.6 to 10. According to this process, by adoption of the above-mentioned specific catalyst concentration and pH value in combination, the rate of oxidation of the aromatic compound is increased and the selectivity to the hydroperoxide is improved.

    摘要翻译： 公开了一种制备芳族氢过氧化物的方法，包括在铜化合物催化剂存在下，将含有含有仲烷基的芳族化合物的油相和搅拌下的碱性水相的两相液相与含分子氧的气体接触 例如铜的无机盐或有机酸盐，从而将芳族化合物氧化成相应的芳香族氢过氧化物，其中进行液相催化氧化，同时将液相中的催化剂浓度保持在0.005〜10ppm，作为铜 原子，碱性水相的pH值为7.6〜10。根据该方法，通过组合使用上述特定催化剂浓度和pH值，芳香族化合物的氧化速率提高，选择性 氢过氧化物得到改善。

    Process for continuous production of cumene and/or diisopropylbenzene
    3.
    发明授权
    Process for continuous production of cumene and/or diisopropylbenzene 失效
    连续生产枯烯和/或二异丙基苯的方法

    公开(公告)号：US4347393A

    公开(公告)日：1982-08-31

    申请号：US294204

    申请日：1981-08-19

    申请人： Hisaya Miki

    发明人： Hisaya Miki

    IPC分类号： B01J27/00 ,  C07B61/00 ,  C07C1/00 ,  C07C2/68 ,  C07C6/12 ,  C07C15/02 ,  C07C15/085 ,  C07C39/02 ,  C07C67/00 ,  C07C2/70 ,  C07C5/22

    CPC分类号： C07C39/02 ,  C07C15/02 ,  C07C15/085 ,  C07C2/68 ,  C07C6/126 ,  C07C2527/11 ,  C07C2527/126 ,  Y02P20/52

    摘要： In a process for producing cumene and/or diisopropylbenzene which comprises, in combination,(I) an alkylating step,(II) a transalkylating step,(III) a catalyst separating step,(IV) a neutralization step, and(V) fractionally distilling step;characterized in that(a) step (I) is carried out at a temperature of about 40.degree. C. to about 85.degree. C. while maintaining the activity coefficient (M) of the catalyst at about 10.times.10.sup.-4 to about 300.times.10.sup.-4 and the concentration of aluminum chloride in the system at 0.005 to 0.15 mole/liter, and(b) step (II) is carried out without removing the catalyst from the reaction product of step (I) and at a temperature of about 40.degree. C. to about 75.degree. C. in the presence of added fresh aluminum chloride in an amount of 2 to 20 parts by weight/hr per 1000 parts by weight/hr of diisopropylbenzene in the reaction system while maintaining the activity coefficient (M) of the catalyst in the system at about 30.times.10.sup.-4 to about 300.times.10.sup.-4 and the concentration of aluminum chloride in the system at 0.3 to 1 mole/liter.

    摘要翻译： 在制备异丙苯和/或二异丙基苯的方法中，组合包括（I）烷基化步骤，（II）烷基转移步骤，（III）催化剂分离步骤，（IV）中和步骤和（V） 蒸馏步骤 其特征在于（a）步骤（I）在约40℃至约85℃的温度下进行，同时将催化剂的活性系数（M）保持在约10×10 -4至约300×10 -4， 系统中氯化铝的浓度为0.005〜0.15摩尔/升，（b）步骤（II）在不从步骤（I）的反应产物和约40℃的温度下除去催化剂的情况下进行。 在加入的新鲜氯化铝的存在下，在反应体系中每1000重量份/小时的二异丙基苯为2至20重量份/小时，同时保持催化剂的活性系数（M）至约75℃ 在系统中为约30×10 -4至约300×10 -4，系统中氯化铝的浓度为0.3至1摩尔/升。

    Process for manufacturing creosote with non-settling out salts
    5.
    发明授权
    Process for manufacturing creosote with non-settling out salts 失效
    制造具有非沉淀盐的杂酚油的方法

    公开(公告)号：US4603226A

    公开(公告)日：1986-07-29

    申请号：US801455

    申请日：1985-11-25

    申请人： George H. Collingwood ,  Gail L. Erickson ,  Howard L. Simon ,  Roger L. Haley ,  Bill E. Sparling

    发明人： George H. Collingwood ,  Gail L. Erickson ,  Howard L. Simon ,  Roger L. Haley ,  Bill E. Sparling

    IPC分类号： C07C39/02

    CPC分类号： C07C39/02

    摘要： A stable creosote product is prepared from which little or no sludge heel settles and which does not require heat to be applied to prevent settling out of solids. The stable product is obtained by a method that mechanically reduces the particle size or the salts that form upon cooling below the limpid point. The layer of salt which settles on the bottom of the beaker is then mechanically broken and homogenized. The fine salts which had previously settled and were homogenized, did not resettle but remained relatively evenly dispersed throughout the mixture and remained dispersed even after prolonged periods of uninterrupted standing. The salts are not allowed to settle before homogenizing. Little or no heel formation was detected in the creosote in which the settled and material was homogenized as described.

    摘要翻译： 制备稳定的杂酚油产品，由此很少或没有污泥后跟沉降，并且不需要施加热量以防止沉淀出固体。 稳定的产物是通过机械地降低颗粒大小的方法获得的，或者是在冷却下方形成的盐。 然后将沉淀在烧杯底部的盐层机械破碎并均化。 先前沉降并均质化的细盐没有重新定位，但仍然相对均匀地分散在整个混合物中，并且即使在长时间不间断的静置后也保持分散。 在均化之前不允许盐沉降。 在所述杂酚油中检测到很少或没有脚跟形成，其中沉淀的和材料如所述均化。