利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

92 条记录 (耗时 0.035 秒)

    Process for oxidizing alkylaromatic compounds
    32.
    发明申请
    Process for oxidizing alkylaromatic compounds 有权
    氧化烷基芳族化合物的方法

    公开(公告)号：US20080033217A1

    公开(公告)日：2008-02-07

    申请号：US11827952

    申请日：2007-07-13

    申请人： Jihad Mohammed Dakka ,  Doron Levin ,  John Scott Buchanan ,  Jon Edmond Randolph Stanat

    发明人： Jihad Mohammed Dakka ,  Doron Levin ,  John Scott Buchanan ,  Jon Edmond Randolph Stanat

    IPC分类号： C07C37/08

    CPC分类号： C07C409/08 ,  C07C37/08 ,  C07C45/53 ,  C07C407/00 ,  C07C409/14 ,  C07C2601/14 ,  Y02P20/52 ,  C07C49/10 ,  C07C49/04 ,  C07C49/403 ,  C07C39/04

    摘要： In a process for oxidizing alkylaromatic compounds to the corresponding hydroperoxide, an alkylaromatic compound of general formula (I): in which R1 and R2 each independently represents an alkyl group having from 1 to 4 carbon atoms, provided that R1 and R2 may be joined to form a cyclic group having from 4 to 10 carbon atoms, said cyclic group being optionally substituted, and R3 represents hydrogen, one or more alkyl groups having from 1 to 4 carbon atoms or a cyclohexyl group, is contacted with oxygen in the presence of an added catalyst comprising tert-butyl hydroperoxide and in the absence of any other catalyst, to produce a hydroperoxide of general formula (II): in which R1, R2 and R3 have the same meaning as in formula (I). The hydroperoxide may then be converted into a phenol and a ketone of the general formula R1COCH2R2 (III), in which R1 and R2 have the same meaning as in formula (I).

    摘要翻译： 在将烷基芳族化合物氧化成相应的氢过氧化物的方法中，通式（I）的烷基芳族化合物：其中R 1和R 2各自独立地表示具有 如果R 1和R 2可以连接形成具有4至10个碳原子的环状基团，则所述环状基团任选被取代 ，R 3表示氢，一个或多个具有1至4个碳原子的烷基或环己基与氧在含叔丁基过氧化氢的加成催化剂存在下与氧接触， 不存在任何其它催化剂，以产生通式（II）的氢过氧化物：其中R 1，R 2和R 3 3具有 与式（I）中相同的含义。 然后将氢过氧化物转化成通式为R 1，R 2，R 2，（III）的苯酚和酮，其中R ＆lt; SUP＆gt;和＆lt; 2＆gt;具有与式（I）中相同的含义。

    Production of phenol
    36.
    发明授权
    Production of phenol 失效
    生产苯酚

    公开(公告)号：US06441251B1

    公开(公告)日：2002-08-27

    申请号：US09946711

    申请日：2001-09-04

    申请人： Doron Levin ,  Jose G. Santiesteban ,  Lei Zhang

    发明人： Doron Levin ,  Jose G. Santiesteban ,  Lei Zhang

    IPC分类号： C07C3708

    CPC分类号： C07C37/08 ,  B01J29/0308 ,  B01J37/0209 ,  B01J2229/12 ,  B01J2229/14 ,  B01J2229/34 ,  C07C45/53 ,  Y02P20/52 ,  Y02P20/588 ,  C07C49/08 ,  C07C39/04

    摘要： A process for producing phenol and acetone from cumene hydroperoxide is described in which the cumene hydroperoxide is contacted with a solid-acid catalyst comprising an inorganic, porous, crystalline material, designated as M41S, exhibiting, after calcination, an x-ray diffraction pattern with at least one peak at a d-spacing greater than about 18 Angstrom Units with a relative intensity of 100 and a benzene adsorption capacity of greater than 15 grams of benzene per 100 grams of said material at 50 torr and 25° C., wherein said material comprises sulfonate functionality.

    摘要翻译： 描述了由氢过氧化枯烯生产苯酚和丙酮的方法，其中氢过氧化枯烯与包含称为M41S的无机多孔结晶材料的固体酸催化剂接触，在焙烧后表现出x射线衍射图与 在50托和25℃下，相对强度为100的d间距的至少一个峰值大于约18埃，相对强度为100，苯吸附能力大于15克苯/ 100克所述材料，其中所述 材料包括磺酸盐官能团。

    Olefin epoxidation catalysts
    37.
    发明授权
    Olefin epoxidation catalysts 有权
    烯烃环氧化催化剂

    公开(公告)号：US6114551A

    公开(公告)日：2000-09-05

    申请号：US412773

    申请日：1999-10-04

    申请人： Doron Levin ,  Clarence D. Chang ,  Shifang Luo ,  Jose G. Santiesteban ,  James C. Vartuli

    发明人： Doron Levin ,  Clarence D. Chang ,  Shifang Luo ,  Jose G. Santiesteban ,  James C. Vartuli

    IPC分类号： B01J29/89 ,  C01B39/06 ,  C07D301/19 ,  C07D303/04 ,  C07D305/00

    CPC分类号： C07D301/19 ,  B01J29/89 ,  B01J2229/16 ,  B01J2229/183 ,  B01J2229/32 ,  B01J29/7038

    摘要： A method of synthesizing an olefin epoxidation catalyst comprises the step of treating a porous crystalline aluminosilicate material having an X-ray diffraction pattern including d-spacing maxima at 12.4.+-.0.25, 6.9.+-.0.15, 3.57.+-.0.07 and 3.42.+-.0.07 Angstrom, such as MCM-22, with a dealuminating agent under conditions effective to remove framework aluminium from the material and produce a dealuminated product. The dealuminated product is then treated with a titanium-containing material under conditions effective to insert titanium into the dealuminated product and produce a titanium-containing, dealuminated catalyst composition.The resultant catalyst is useful in the epoxidation of olefins, such as propylene and cyclohexene, with hydrogen peroxide and organic hydroperoxides.

    摘要翻译： 合成烯烃环氧化催化剂的方法包括以下步骤：处理多晶结晶硅铝酸盐材料，该多晶结晶硅铝酸盐材料具有包含d间距最大值的X射线衍射图，为12.4 +/- 0.25,6.9 +/- 0.15,3.57 +/- 0.07和3.42 +/- 0.07埃，例如MCM-22，在有效从材料中除去骨架铝并产生脱铝产品的条件下用脱铝剂。 然后在有效地将钛插入脱铝产品中并且生产含钛脱铝催化剂组合物的条件下，用含钛材料处理脱铝产品。 得到的催化剂可用于烯烃如丙烯和环己烯与过氧化氢和有机氢过氧化物的环氧化。

    Transalkylation of heavy aromatic hydrocarbon feedstocks
    40.
    发明授权
    Transalkylation of heavy aromatic hydrocarbon feedstocks 有权
    重芳香烃原料的烷基转移

    公开(公告)号：US08183424B2

    公开(公告)日：2012-05-22

    申请号：US12973358

    申请日：2010-12-20

    申请人： Doron Levin ,  April D. Ross ,  James H. Beech, Jr.

    发明人： Doron Levin ,  April D. Ross ,  James H. Beech, Jr.

    IPC分类号： C07C6/12

    CPC分类号： B01J8/04 ,  B01J29/064 ,  B01J29/072 ,  B01J29/076 ,  B01J29/44 ,  B01J29/46 ,  B01J29/7034 ,  B01J29/7669 ,  B01J35/0006 ,  B01J35/023 ,  B01J37/0009 ,  B01J37/20 ,  B01J2229/42 ,  C07C6/12 ,  C07C2529/42 ,  Y02P20/52 ,  C07C15/08

    摘要： In a process for producing xylene by transalkylation of a C9+ aromatic hydrocarbon feedstock with a C6 and/or C7 aromatic hydrocarbon, the C9+ aromatic hydrocarbon feedstock, at least one C6 and/or C7 aromatic hydrocarbon and hydrogen are contacted with a first catalyst comprising (i) a first molecular sieve having a Constraint Index in the range of about 3 to about 12 and (ii) at least first and second different metals or compounds thereof of Groups 6 to 12 of the Periodic Table of the Elements. Contacting with the first catalyst is conducted under conditions effective to dealkylate aromatic hydrocarbons in the feedstock containing C2+ alkyl groups and to saturate C2+ olefins formed so as to produce a first effluent. At least a portion of the first effluent is then contacted with a second catalyst comprising a second molecular sieve having a Constraint Index less than 3 under conditions effective to transalkylate C9+ aromatic hydrocarbons with said at least one C6-C7 aromatic hydrocarbon to form a second effluent comprising xylene.

    摘要翻译： 在通过C 9 +芳族烃原料与C 6和/或C 7芳烃的烷基转移生产二甲苯的方法中，C 9 +芳烃原料，至少一种C 6和/或C 7芳烃和氢与第一催化剂接触，所述第一催化剂包含（ i）具有在约3至约12范围内的约束指数的第一分子筛和（ii）至少元素周期表第6至12族的第一和第二不同金属或其化合物。 与第一催化剂接触在有效地使含有C 2 +烷基的原料中芳族烃脱烷基化并使形成的C 2 +烯烃饱和以产生第一流出物的条件下进行。 然后至少一部分第一流出物与包含第二分子筛的第二催化剂接触，该第二催化剂在有效使C 9+芳族烃与所述至少一种C 6 -C 7芳族烃烷基转移的条件下具有小于3的约束指数，以形成第二流出物 包括二甲苯。