Zeolite synthesis using an alcohol or like molecules
    62.
    发明授权
    Zeolite synthesis using an alcohol or like molecules 失效
    使用醇或类似分子的沸石合成

    公开(公告)号:US5160500A

    公开(公告)日:1992-11-03

    申请号:US785361

    申请日:1991-10-30

    摘要: There is provided a method for preparing a zeolite other than ZSM-5 from a reaction mixture comprising a mixed organic directing agent which is a combination of (a) an organic nitrogen containing compound such as an amine or a quaternary ammonium compound and (b) an alcohol and/or diol. Particular zeolites synthesized by this method include ZSM-22 and ZSM-23. The use of an alcohol or a diol may inhibit the coformation of ZSM-5. Especially when used to prepare ZSM-23, this method enables the preparation of more catalytically active ZSM-23 of reduced crystallite size and also enables the use of lower crystallization temperatures. Particular mixed organic directing agents for the preparation of ZSM-23 are combinations of (a) pyrrolidine and (b) ethanol or ethylene glycol. Other factors which enhance the activity of ZSM-23 include the use of the following in the reaction mixtures for preparing ZSM-23: potassium ions; precipitated silica particles as sources of silica; and spray dried precipitated silica/alumina particles as sources of silica and alumina. The catalytic stability of alumina bound ZSM-23 catalysts is especially enhanced by steaming. Particular reactions which can be catalyzed by ZSM-23 made according to methods described herein include the dealkylation of ethylbenzene and the alkylation of benzene with ethylene.

    摘要翻译: 提供了一种从含有(a)有机氮化合物如胺或季铵化合物的组合的混合有机导向剂的反应混合物制备ZSM-5以外的沸石的方法,(b) 醇和/或二醇。 通过该方法合成的特定沸石包括ZSM-22和ZSM-23。 使用醇或二醇可能会抑制ZSM-5的结构。 特别是当用于制备ZSM-23时,该方法能够制备更小的微晶尺寸的更具催化活性的ZSM-23,并且还能够使用较低的结晶温度。 用于制备ZSM-23的特殊的混合有机导向剂是(a)吡咯烷和(b)乙醇或乙二醇的组合。 提高ZSM-23活性的其他因素包括在制备ZSM-23:钾离子的反应混合物中使用以下物质: 沉淀二氧化硅颗粒作为二氧化硅源; 和喷雾干燥的沉淀二氧化硅/氧化铝颗粒作为二氧化硅和氧化铝的来源。 氧化铝结合的ZSM-23催化剂的催化稳定性通过蒸汽特别提高。 根据本文所述方法制备的可以由ZSM-23催化的特定反应包括乙苯的脱烷基化和苯与乙烯的烷基化。

    Selective catalytic reduction (SCR) of nitrogen oxides
    64.
    发明授权
    Selective catalytic reduction (SCR) of nitrogen oxides 失效
    氮氧化物的选择性催化还原(SCR)

    公开(公告)号:US5143707A

    公开(公告)日:1992-09-01

    申请号:US735232

    申请日:1991-07-24

    IPC分类号: B01D53/94 B01J29/04

    摘要: Emissions of nitrogen oxides (NO.sub.X) to the atmosphere are reduced by treatment of gases containing nitrogen oxides with a reducing agent such as ammonia in the presence of a catalyst containing a mesoporous crystalline catalyst. The mesoporous crystalline catalyst comprises an inorganic, non-layered, porous, crystalline phase aluminosilicate material which exhibits a benzene adsorption capacity of greater than about 15 grams benzene per 100 grams at 50 torr and 25.degree. C. In its preferred catalytic form, the crystalline material has a uniform, hexagonal arrangement of pores with diameters of at least about 13 .ANG. and exhibiting, after calcination, an X-ray diffraction pattern with at least on d-spacing greater than about 18 .ANG. and a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 .ANG. which corresponds to at least one peak in the X-ray diffraction pattern.

    摘要翻译: 在含有介孔结晶催化剂的催化剂存在下,通过用还原剂如氨处理含氮氧化物的气体,可以减少氮氧化物(NO x)向大气中的排放。 介孔结晶催化剂包括无机,非层状,多孔,结晶相的硅铝酸盐材料,其在50乇和25℃下表现出大于约15克苯/ 100克的苯吸附能力。在其优选的催化剂形式中, 材料具有均匀的六边形排列的直径至少约为13的孔,并且在煅烧之后表现出至少在d-间距大于约18的X射线衍射图和六角形电子衍射图,其可以是 用对应于X射线衍射图中的至少一个峰的大于约18的d100值进行索引。

    Catalyst comprising a hydrogenation metal and a delaminated layered
silicate
    65.
    发明授权
    Catalyst comprising a hydrogenation metal and a delaminated layered silicate 失效
    包含氢化金属和分层层状硅酸盐的催化剂

    公开(公告)号:US5137861A

    公开(公告)日:1992-08-11

    申请号:US644149

    申请日:1991-01-22

    IPC分类号: B01J21/16 B01J29/04 C10G45/04

    摘要: There is provided a catalyst comprising at least one hydrogenation metal, such as Ni and Mo, supported on a delaminated layered silicate, such as kenyaite, which has been swollen and calcined. There is also provided a method for making this catalyst. There is further provided a process for using this catalyst to demetalize a petroleum feedstock, such as a gas oil.

    摘要翻译: 提供了一种催化剂,其包括至少一种负载在已经溶胀和煅烧的分层层状硅酸盐如肯尼亚的氢化金属如Ni和Mo上。 还提供了制备该催化剂的方法。 还提供了一种使用该催化剂对石油原料如瓦斯油进行脱金属的方法。

    Process for xylene isomerization using ZSM-23 zeolite
    66.
    发明授权
    Process for xylene isomerization using ZSM-23 zeolite 失效
    使用ZSM-23沸石的二甲苯异构化方法

    公开(公告)号:US4599475A

    公开(公告)日:1986-07-08

    申请号:US747736

    申请日:1985-06-19

    摘要: An improved process is disclosed for the isomerization of xylenes over a zeolite which may contain a platinum group metal. The improvement resides in the use of ZSM-23 zeolite which exhibits enhanced selectivity which inhibits the production of undesired C.sub.9.sup.+ aromatic transalkylation by-products. ZSM-23 having pores substantially unobstructed by silica, such as that made from a forming mixture containing amorphous precipitated silica as a silica source, has been found to be particularly useful in the process of the present invention.

    摘要翻译: 公开了一种用于二甲苯异构化的改进方法,其可以含有铂族金属的沸石。 改进在于使用ZSM-23沸石,其表现出增强的选择性,其抑制不需要的C9 +芳族烷基转移副产物的产生。 已经发现具有基本上不被二氧化硅阻挡的孔的ZSM-23,例如由含有无定形沉淀二氧化硅作为二氧化硅源的形成混合物制成的孔,其在本发明的方法中特别有用。

    Oxidation of hydrocarbons
    68.
    发明授权
    Oxidation of hydrocarbons 有权
    碳氢化合物的氧化

    公开(公告)号:US08658839B2

    公开(公告)日:2014-02-25

    申请号:US12675342

    申请日:2008-10-08

    IPC分类号: C07C35/08 C07D209/48

    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 elements of Group 4 of the Periodic Table; Y is O or OH; k is 0, 1, or 2; l 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 said formula (I) and the effluent is treated with a solid sorbent to remove at least part of the unreacted imide catalyst and produce a treated effluent comprising said 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; l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所述式(I)的未反应酰亚胺催化剂的流出物,并且用固体吸附剂处理流出物以除去至少部分未反应的酰亚胺催化剂并产生包含所述氧化烃产物的经处理的流出物。 然后可以回收有机相。

    Process for oxidizing alkylaromatic compounds
    69.
    发明授权
    Process for oxidizing alkylaromatic compounds 失效
    氧化烷基芳族化合物的方法

    公开(公告)号:US07985883B2

    公开(公告)日:2011-07-26

    申请号:US12601578

    申请日:2008-07-08

    摘要: In a process for producing hydroperoxides, 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, with oxygen in the presence of a catalyst comprising a manganese oxide molecular sieve to produce a hydroperoxide of general formula (II): in which R1, R2 and R3 have the same meaning as in formula (I). The hydroperoxide of formula (II) may then be converted to a phenol and an aldehyde or a ketone of the general formula R1COCH2R2 (III), in which R1 and R2 have the same meaning as in formula (I). In the case where the ketone is cyclohexanone, this may then be dehydrogenated to produce further phenol.

    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可以连接形成具有 所述环状基团任选被取代,并且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氧化锰分子筛 以产生通式(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。 然后将式(II)的氢过氧化物转化为通式为R 1 COCH 2 R 2(III)的酚和醛或酮,其中R 1和R 2具有与式(I)中相同的含义。 在酮是环己酮的情况下,然后可以将其脱氢以产生另外的苯酚。