中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

3 records (took 0.023 seconds)

    Process for producing phenol and cyclohexanone
    1.
    发明授权
    Process for producing phenol and cyclohexanone 有权
    苯酚和环己酮的制备方法

    公开(公告)号：US09181165B2

    公开(公告)日：2015-11-10

    申请号：US14394455

    申请日：2013-04-09

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Keith H. Kuechler ,  Francisco M. Benitez ,  Krystle J. Emanuele ,  Christopher L. Becker ,  John L. Heidman, Jr.

    IPC: C07C45/53 ,  C07C37/08 ,  C07C49/403 ,  C07C37/80 ,  C07C37/58 ,  B01D3/40 ,  C07C45/83

    CPC classification number: C07C49/403 ,  B01D3/40 ,  C07C37/08 ,  C07C37/58 ,  C07C37/80 ,  C07C45/53 ,  C07C45/83 ,  C07C2601/14 ,  C07C39/04

    Abstract: In a process for separating a mixture comprising cyclohexanone and phenol, at least a portion of the mixture is distilled in the presence of a solvent including at least two alcoholic hydroxyl groups attached to non-adjacent saturated carbon atoms, water, and in the presence or absence of a hemiketal defined by the formula (I) or the formula (II): wherein R1, the same or different at each occurrence, is independently an alkylene group having from 2 to 10 carbon atoms, R2 is an alkylene group having from 4 to 10 carbon atoms and/or R3 is hydrogen or the following group: and in the presence or absence of an enol-ether derived from the hemiketal defined by the formula (I) or the formula (II), wherein the total concentration of the hemiketal and enol-ether, expressed in term of weight percentage of the total weight of the feed to the distilling step, is at most 0.01%.

    Abstract translation: 在分离包含环己酮和苯酚的混合物的方法中，至少一部分混合物在溶剂存在下蒸馏，所述溶剂包括至少两个连接到不相邻饱和碳原子上的醇羟基，水和存在或不存在 不存在由式（I）或式（II）定义的半缩酮化合物：其中每次出现相同或不同的R 1独立地为具有2至10个碳原子的亚烷基，R 2为具有4 至10个碳原子和/或R 3为氢或以下基团：并且在存在或不存在衍生自由式（I）或式（II）定义的半缩酮的烯醇 - 醚的情况下，其中， 半缩酮和烯醇醚，以蒸馏步骤的进料总重量的重量百分比表示，至多为0.01％。

    Process for separating methylcyclopentanone from cyclohexanone
    3.
    发明授权
    Process for separating methylcyclopentanone from cyclohexanone 有权
    甲基环戊酮与环己酮分离的方法

    公开(公告)号：US09174908B2

    公开(公告)日：2015-11-03

    申请号：US14421408

    申请日：2013-09-06

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Jason D. Davis ,  Keith H. Kuechler ,  James R. Lattner ,  Christopher L. Becker ,  John L. Heidman, Jr.

    IPC: C07C45/82 ,  C07C2/68 ,  C07C45/80 ,  C07C45/28 ,  C07D223/10 ,  B01D3/14

    CPC classification number: C07C45/80 ,  B01D3/143 ,  C07C45/28 ,  C07C45/82 ,  C07C2601/08 ,  C07C2601/14 ,  C07D223/10 ,  C07C49/403 ,  C07C49/395

    Abstract: In a process for separating methylcyclopentanone from a mixture comprising methylcyclopentanone and cyclohexanone, a feedstock comprising cyclohexanone, methylcyclopentanone, water at a concentration of at least 0.10 wt %, and optionally phenol is fed into a fractionation distillation column, where a lower effluent rich in cyclohexanone and an upper effluent rich in methylcyclopentanone are produced. Due to the inclusion of water at a relatively high concentration in the feedstock, efficient separation of methylcyclopentanone is achieved. In certain particularly desirable embodiments, the lower effluent is substantially free of methylcyclopentanone. The thus produced cyclohexanone may be used to make, e.g., high-purity caprolactam, which, in turn, may be used for fabricating, e.g., high-performance nylon-6 material.

    Abstract translation: 在从甲基环戊酮和环己酮的混合物中分离甲基环戊酮的方法中，将包含环己酮，甲基环戊酮，浓度至少为0.10wt％的水和任选的苯酚的原料进料到分馏塔中，其中富含环己酮的较低流出物 并产生富含甲基环戊酮的上部流出物。 由于原料中含有较高浓度的水，因此可以有效分离甲基环戊酮。 在某些特别理想的实施方案中，较低的流出物基本上不含甲基环戊酮。 由此生产的环己酮可用于制备例如高纯度己内酰胺，其又可用于制造例如高性能尼龙-6材料。

Patent Agency Ranking