利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.023 秒)

    Process for preparing dialkylnaphthalene
    4.
    发明授权
    Process for preparing dialkylnaphthalene 失效
    制备二烷基萘的方法

    公开(公告)号：US6011190A

    公开(公告)日：2000-01-04

    申请号：US887052

    申请日：1997-07-02

    申请人： Masahiro Motoyuki ,  Koji Yamamoto ,  Ajit Vishwanath Sapre ,  John Paul McWilliams

    发明人： Masahiro Motoyuki ,  Koji Yamamoto ,  Ajit Vishwanath Sapre ,  John Paul McWilliams

    IPC分类号： B01J29/04 ,  C07B61/00 ,  C07C2/66 ,  C07C6/12 ,  C07C15/24 ,  C07C1/01 ,  C07C2/64 ,  C07C2/68 ,  C07C5/22

    CPC分类号： C07C15/24 ,  C07C2/66 ,  C07C6/126 ,  C07C2529/70

    摘要： 2,6-Dialkylnaphthalene is prepared from a feedstock comprising naphthalene and an alkylating agent, by a process comprising the steps:(I) transalkylating isomers of dialkylnaphthalene and naphthalene to produce monoalkylnaphthalene and isomers of dialkylnaphthalene;(II) separating the product obtained in step (I) into naphthalene, monoalkylnaphthalene, dialkylnaphthalene and other components;(III) alkylating the monoalkylnaphthalene fraction from step (II) with an alkylating agent to produce dialkylnaphthalene; and(IV) separating 2,6-dialkylnaphthalene from the dialkylnaphthalene fraction in step (II),wherein at least step (I) or step (III) is conducted in the presence of a catalyst having a composition comprising a synthetic zeolite having an X-ray diffraction pattern with an interplanar d-spacing (.ANG.)______________________________________ 12.36 .+-. 0.4 11.03 .+-. 0.2 8.83 .+-. 0.14 6.18 .+-. 0.12 6.00 .+-. 0.10 4.06 .+-. 0.07 3.91 .+-. 0.07 3.42 .+-. 0.06. ______________________________________

    摘要翻译： 2,6-二烷基萘由包含萘和烷基化剂的原料制备，通过包括以下步骤的方法制备：（I）将烷基萘和萘的异构体转烷基化以产生单烷基萘和二烷基萘的异构体; （II）将步骤（I）中获得的产物分离成萘，单烷基萘，二烷基萘等组分; （III）用烷基化剂烷基化来自步骤（II）的单烷基萘馏分以制备二烷基萘; 和（IV）在步骤（II）中从二烷基萘馏分中分离2,6-二烷基萘，其中至少步骤（I）或步骤（III）在具有包含具有X 具有面间d间距（ANGSTROM）的-ray衍射图 - 12.36 +/- 0.4-11.03 +/- 0.2-8.83 +/- 0.14-6.18 +/- 0.12- 6.00 +/- 0.10-4.06 +/- 0.07- 3.91 +/- 0.07 - 3.42 +/- 0.06。 -

    Removable of polar contaminants from aromatic feedstocks
    7.
    发明授权
    Removable of polar contaminants from aromatic feedstocks 有权
    从芳烃原料中除去极性污染物

    公开(公告)号：US06617482B1

    公开(公告)日：2003-09-09

    申请号：US09639555

    申请日：2000-08-16

    申请人： Chaya Rao Venkat ,  Yun-Yang Huang ,  Thomas Francis Degnan, Jr. ,  John Paul McWilliams ,  Ronald A. Weiss

    发明人： Chaya Rao Venkat ,  Yun-Yang Huang ,  Thomas Francis Degnan, Jr. ,  John Paul McWilliams ,  Ronald A. Weiss

    IPC分类号： C07C266

    CPC分类号： C07C15/02 ,  C07C7/13 ,  C07C2529/70 ,  C07C15/00

    摘要： A process is described for removing polar compounds from an aromatic feedstock which contains polar compounds and which is then used in an alkylation process. The process comprises contacting the feedstock in an adsorption zone at a temperature of less than or equal to 130° C. with an adsorbent selective for the adsorption of said polar compounds and comprising a molecular sieve having pores and/or surface cavities with cross-sectional dimensions greater than 5.6 Angstroms. A treated feedstock substantially free of said polar compounds is withdrawn from the adsorption zone and fed to an alkylation zone for contact under liquid phase alkylation conditions with an alkylating agent in the presence of an alkylation catalyst.

    摘要翻译： 描述了从含有极性化合物的芳族原料中除去极性化合物的方法，然后将其用于烷基化方法。 该方法包括使原料在小于或等于130℃的吸附区中与选择性吸附所述极性化合物的吸附剂接触，并且包含具有孔和/或表面空腔的分子筛，其横截面 尺寸大于5.6埃。 基本上不含所述极性化合物的经处理的原料从吸附区排出，并在烷基化催化剂存在下，用烷基化剂在液相烷基化条件下进料至烷基化区进行接触。