Production of para-xylene by the methylation of benzene and/or toluene
    3.
    发明授权
    Production of para-xylene by the methylation of benzene and/or toluene 有权
    通过苯和/或甲苯的甲基化生产对二甲苯

    公开(公告)号:US08344197B2

    公开(公告)日:2013-01-01

    申请号:US12894778

    申请日:2010-09-30

    IPC分类号: C07C2/66

    摘要: In a process for the production of para-xylene, methanol is preheated to a first temperature, an aromatic feedstock comprising toluene and/or benzene is preheated to a second temperature and the preheated methanol and aromatic feedstocks are fed to a reactor at a first methanol to aromatic feedstock molar ratio. The preheated aromatic feedstock is contacted with the preheated methanol under alkylation conditions in the reactor in the presence of a catalyst so that the methanol reacts with the aromatic feedstock to produce an effluent comprising para-xylene. During the reaction, a temperature is measured within the reactor and is compared with a predetermined optimal temperature. The methanol to aromatic feedstock molar ratio is then adjusted in a manner to reduce any difference between the measured and predetermined optimal temperatures in the reactor.

    摘要翻译: 在制备对二甲苯的方法中,将甲醇预热至第一温度,将包含甲苯和/或苯的芳族原料预热至第二温度,并将预热的甲醇和芳族原料以第一个甲醇 与芳烃原料摩尔比。 预热的芳族原料在催化剂存在下在反应器中在烷基化条件下与预热的甲醇接触,使得甲醇与芳族原料反应以产生包含对二甲苯的流出物。 在反应期间,在反应器内测量温度并与预定的最佳温度进行比较。 然后以降低反应器中测量的和预定的最佳温度之间的任何差异的方式调节甲醇与芳族原料的摩尔比。

    Production of Para-Xylene by the Methylation of Benzene and/or Toluene
    4.
    发明申请
    Production of Para-Xylene by the Methylation of Benzene and/or Toluene 有权
    通过苯和/或甲苯的甲基化生产对二甲苯

    公开(公告)号:US20110092755A1

    公开(公告)日:2011-04-21

    申请号:US12894778

    申请日:2010-09-30

    IPC分类号: C07C15/08

    摘要: In a process for the production of para-xylene, methanol is preheated to a first temperature, an aromatic feedstock comprising toluene and/or benzene is preheated to a second temperature and the preheated methanol and aromatic feedstocks are fed to a reactor at a first methanol to aromatic feedstock molar ratio. The preheated aromatic feedstock is contacted with the preheated methanol under alkylation conditions in the reactor in the presence of a catalyst so that the methanol reacts with the aromatic feedstock to produce an effluent comprising para-xylene. During the reaction, a temperature is measured within the reactor and is compared with a predetermined optimal temperature. The methanol to aromatic feedstock molar ratio is then adjusted in a manner to reduce any difference between the measured and predetermined optimal temperatures in the reactor.

    摘要翻译: 在制备对二甲苯的方法中,将甲醇预热至第一温度,将包含甲苯和/或苯的芳族原料预热至第二温度,并将预热的甲醇和芳族原料以第一个甲醇 与芳烃原料摩尔比。 预热的芳族原料在催化剂存在下在反应器中在烷基化条件下与预热的甲醇接触,使得甲醇与芳族原料反应以产生包含对二甲苯的流出物。 在反应期间,在反应器内测量温度并与预定的最佳温度进行比较。 然后以降低反应器中测量的和预定的最佳温度之间的任何差异的方式调节甲醇与芳族原料的摩尔比。

    Process for oxidizing alkylaromatic compounds
    8.
    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

    IPC分类号: C07C37/08

    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 < SUP>和< 2>具有与式(I)中相同的含义。

    Selective oxidation of alkylbenzenes
    9.
    发明授权
    Selective oxidation of alkylbenzenes 失效
    烷基苯的选择性氧化

    公开(公告)号:US07326815B2

    公开(公告)日:2008-02-05

    申请号:US11318731

    申请日:2005-12-27

    IPC分类号: C07C45/53 C07C37/08

    摘要: The present invention relates to a process for producing phenol and a ketone of general formula R1COCH2R3 (I), in which R1 and R2 each independently represent an alkyl group having from 1 to 4 carbon atoms, said process comprising: (a) providing an alkylbenzene feedstock comprising (i) an alkylbenzene of general formula (II) in which R1 and R2 have the same meaning as in formula (I) and (ii) at least one structural isomer of said alkylbenzene of formula (II) in an amount of at least 0.7% of the weight of alkylbenzene of formula (II), (b) submitting the alkylbenzene feedstock to oxidation conditions in the presence of oxygen and in the presence of a cyclic imide of formula (III): in which X represents a carbonyl (CO) group or a sulfonyl (SO2) group, n is 0, 1, 2, 3 or 4, R3 is one or several groups selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group and R4 is a hydrogen atom, an alkaline metal cation or an alkaline earth metal cation, or in the presence of N,N′,N″-trihydroxyisocyanuric acid (THICA), to produce a product comprising a hydroperoxide of general formula (IV) in which R1 and R2 have the same meaning as in formula (I), and (c) converting the hydroperoxide of formula (IV) into phenol and a ketone of formula (I).

    摘要翻译: 本发明涉及一种制备通式为R 1,R 2,R 3,R 3(I)的苯酚和酮的方法,其中R 各个独立地表示具有1至4个碳原子的烷基,所述方法包括:(a)提供烷基苯原料,其包含(i)烷基苯, 其中R 1和R 2 2的通式(II)具有与式(I)中相同的含义和(ii)所述烷基苯的至少一种结构异构体 (II)的量为至少0.7%的式(II)的烷基苯的重量,(b)将烷基苯原料在氧气存在下并在式(III)的环状酰亚胺存在下, :其中X表示羰基(CO)基团或磺酰基(SO 2 H 2)基团,n为0,1,2,3或4,R 3为一个 或选自氢原子,卤素原子,烷基,烷氧基,氨基的数个基团 并且R 4是氢原子,碱金属阳离子或碱土金属阳离子,或在N,N',N“ - 三羟基异氰尿酸(THICA)的存在下,产生 包含通式(IV)的氢过氧化物的产物,其中R 1和R 2具有与式(I)中相同的含义,和(c)将氢过氧化物 式(IV)转化成苯酚和式(I)的酮。

    Amorphous olefin polymers, copolymers, methods of preparation and
derivatives thereof
    10.
    发明授权
    Amorphous olefin polymers, copolymers, methods of preparation and derivatives thereof 失效
    无定形烯烃聚合物,共聚物,制备方法及其衍生物

    公开(公告)号:US6022929A

    公开(公告)日:2000-02-08

    申请号:US121631

    申请日:1998-07-23

    CPC分类号: C08F210/08 C08F210/00

    摘要: The present invention includes related methods and uses, including composition comprising the polymer derived from a monomer having the formula:H.sub.2 C.dbd.CHR; (1)and optionally at least one monomer selected from the group consisting of monomers having the formula:R.sup.1 HC.dbd.CHR.sup.2 ; and (2)H.sub.2 C.dbd.CR.sup.2 R.sup.3 (3)wherein R is a hydrocarbon or substituted hydrocarbon having from 2 to 22 carbon atoms, and R.sup.1, R.sup.2 and R.sup.3 are the same or different hydrocarbons or substituted hydrocarbons having 1 to 22 carbon atoms. R is preferably an ethyl group (--CH.sub.2 CH.sub.3) and R.sup.1, R.sup.2 and R.sup.3 are preferably methyl groups (--CH.sub.3).

    摘要翻译: 本发明包括相关的方法和用途,包括包含衍生自具有下列通式的单体的聚合物的组合物:H 2 C = CHR;(1)和任选的至少一种选自具有下式的单体的单体:R1HC = CHR2; 和(2)H 2 C = CR 2 R 3(3)其中R是具有2至22个碳原子的烃或取代烃,R 1,R 2和R 3是相同或不同的烃或具有1至22个碳原子的取代的烃。 R优选为乙基(-CH 2 CH 3),R 1,R 2和R 3优选为甲基(-CH 3)。