Process for Oxidizing Alkylaromatic Compounds
    33.
    发明申请
    Process for Oxidizing Alkylaromatic Compounds 失效
    氧化烷基芳族化合物的方法

    公开(公告)号:US20100185016A1

    公开(公告)日:2010-07-22

    申请号:US12532388

    申请日:2008-04-07

    IPC分类号: C07C45/00 C07C409/08

    摘要: In a process for producing hydroperoxides, an alkylaromatic compound of general formula (I): in which R1 and R2 each independently represents hydrogen or 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 a catalyst comprising a polyoxometalate to produce a hydroperoxide of general formula (II): in which R1, R2 and R3 have the same meaning as in formula (I) and wherein the polyoxometalate comprises a polyoxotungstate substituted with at least one further transition metal.

    摘要翻译: 在制备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各自独立地表示氢或具有1至4个碳原子的烷基,条件是R 1和R 2可以连接形成环状 具有4至10个碳原子的基团,所述环状基团任选被取代,并且R 3表示氢,具有1至4个碳原子的一个或多个烷基或环己基与氧在催化剂的存在下与 产生通式(II)的氢过氧化物:其中R 1,R 2和R 3具有与式(I)中相同的含义,并且其中多金属氧酸盐包括被至少一个其它过渡金属取代的聚氧钨酸酯。

    Process for producing phenol
    36.
    发明授权
    Process for producing phenol 有权
    苯酚生产工艺

    公开(公告)号:US09029612B2

    公开(公告)日:2015-05-12

    申请号:US14110797

    申请日:2011-12-15

    摘要: In a process for producing phenol, cyclohexylbenzene is contacted with oxygen in the presence of an oxidation catalyst comprising a cyclic imide under oxidation conditions effective to produce a product comprising cyclohexylbenzene hydroperoxide and unreacted cyclic imide catalyst. At least a portion of the product is contacted with a cleavage catalyst under conditions effective to convert at least a portion of the cyclohexylbenzene hydroperoxide into a second product comprising further unreacted cyclic imide catalyst, phenol, and cyclohexanone. A portion of the further unreacted cyclic imide catalyst may then be removed from the second product and optionally recycled back to the oxidation step.

    摘要翻译: 在生产苯酚的方法中,在有效产生包含环己基苯氢过氧化物和未反应的环状酰亚胺催化剂的产物的氧化条件下,环己基苯在含有环状酰亚胺的氧化催化剂的存在下与氧气接触。 在有效地将至少一部分环己基苯氢过氧化物转化成包含另外未反应的环状酰亚胺催化剂,苯酚和环己酮的第二产物的条件下,产物的至少一部分与裂解催化剂接触。 然后可以从第二产物中除去部分未反应的环状酰亚胺催化剂,并任选地再循环回氧化步骤。

    Oxidation of hydrocarbons
    39.
    发明授权
    Oxidation of hydrocarbons 失效
    碳氢化合物的氧化

    公开(公告)号:US08487138B2

    公开(公告)日:2013-07-16

    申请号:US12601549

    申请日:2008-07-11

    摘要: In a process for oxidizing a hydrocarbon to a corresponding hydroperoxide, alcohol, ketone, carboxylic acid or dicarboxylic acid, the hydrocarbon is contacted with an oxygen-containing gas in the presence of a catalyst comprising a cyclic imide of the general formula (I): wherein each of R1 and R2 is independently selected from hydrocarbyl and substituted hydrocarbyl radicals having 1 to 20 carbon atoms, or from the groups SO3H, NH2, OH and NO2, or from the atoms H, F, Cl, Br and I provided that R1 and R2 can be linked to one another via a covalent bond; each of Q1 and Q2 is independently selected from C, CH, N and CR3; each of X and Z is independently selected from C, S, CH2, N, P and an element of Group 4 of the Periodic Table; Y is O or OH; k is 0, 1, or 2; 1 is 0, 1, or 2; m is 1 to 3, and R3 can be any of the entities listed for R1. The contacting produces an effluent comprising an oxidized hydrocarbon product and unreacted imide catalyst of formula (I) and the effluent is treated with an aqueous solution of a base to produce an aqueous phase comprising at least part of the unreacted imide catalyst of formula (I) and an organic phase comprising oxidized hydrocarbon product. The organic phase can then be recovered.

    摘要翻译: 在将烃氧化成相应的氢过氧化物,醇,酮,羧酸或二羧酸的方法中,烃在含有通式(I)的环状酰亚胺的催化剂存在下与含氧气体接触: 其中R 1和R 2各自独立地选自具有1至20个碳原子的烃基和取代的烃基,或者来自SO 3 H,NH 2,OH和NO 2基团,或者从原子H,F,Cl,Br和I 并且R 2可以通过共价键彼此连接; Q1和Q2中的每一个独立地选自C,CH,N和CR 3; X和Z各自独立地选自C,S,CH 2,N,P和元素周期表第4族的元素; Y为O或OH; k为0,1或2; 1为0,1或2; m为1至3,R3可为R1列出的任何实体。 接触产生包含氧化烃产物和式(I)的未反应酰亚胺催化剂的流出物,流出物用碱的水溶液处理以产生包含至少部分式(I)的未反应的酰亚胺催化剂的水相, 和包含氧化烃产物的有机相。 然后可以回收有机相。

    Process for producing phenol and methyl ethyl ketone
    40.
    发明授权
    Process for producing phenol and methyl ethyl ketone 失效
    苯酚和甲基乙基酮的制备方法

    公开(公告)号:US07834218B2

    公开(公告)日:2010-11-16

    申请号:US12162970

    申请日:2007-02-08

    IPC分类号: C07C45/53 C07C37/08

    摘要: A process for producing phenol and methyl ethyl ketone comprises contacting benzene and a C4 alkylating agent under alkylation conditions and in the presence of an alkylation catalyst comprising at least one molecular sieve of the MCM-22 family to produce an alkylation effluent comprising secbutylbenzene; wherein the contacting is conducted in a plurality of reaction zones and the C4 alkylating agent secbutylbenzene fraction is recovered from the alkylation effluent and comprises at least 95 wt % sec-butylbenzene, less than 100 wt ppm of C8+ olefins, and less than 0.5 wt % of isobutylbenzene and tert-butylbenzene. The sec-butylbenzene fraction is then oxidized to produce sec-butylbenzene hydroperoxide and the hydroperoxide is cleaved to produce phenol and methyl ethyl ketene.

    摘要翻译: 一种生产苯酚和甲基乙基酮的方法包括在烷基化条件下和在包含至少一种MCM-22族分子筛的烷基化催化剂的存在下使苯和C4烷基化剂接触以产生包含二丁基苯的烷基化流出物; 其中所述接触在多个反应区中进行,并且所述C4烷基化剂仲丁苯部分从烷基化流出物中回收,并且包含至少95重量%的仲丁基苯,小于100重量ppm的C 8+烯烃和小于0.5重量% 的异丁基苯和叔丁基苯。 然后将仲丁基馏分氧化以产生仲丁基苯氢过氧化物,并将氢过氧化物裂解以产生苯酚和甲基乙基乙烯酮。