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105 条记录 (耗时 0.033 秒)

    Catalyst comprising amorphous NiO on silica/alumina support and process for butene dimerization
    76.
    发明授权
    Catalyst comprising amorphous NiO on silica/alumina support and process for butene dimerization 失效
    包含在二氧化硅/氧化铝载体上的无定形NiO的催化剂和用于丁烯二聚的方法

    公开(公告)号：US5254783A

    公开(公告)日：1993-10-19

    申请号：US938094

    申请日：1992-08-31

    申请人： Ramzi Y. Saleh ,  Stuart L. Soled ,  Nicholas C. Dispenziere

    发明人： Ramzi Y. Saleh ,  Stuart L. Soled ,  Nicholas C. Dispenziere

    IPC分类号： B01J23/755 ,  B01J37/02 ,  B01J37/03 ,  C07C2/04

    CPC分类号： B01J23/755 ,  B01J37/0217 ,  B01J37/031

    摘要： The present invention provides for a catalyst composition which is effective for use in the production of dimer products and higher olefin products from lower olefins such as propylene and butene in high yields and with an average degree of branching in the dimer products of less than about 1.6 methyl groups per molecule, generally in the range of from about 1.0 to 1.4 methyl groups per molecule. The present invention also provides a process for producing such dimer and higher olefin products using the catalyst composition of this invention. The catalyst of the invention comprises an amorphous nickel oxide (NiO) present as a disperse substantial monolayer on the surfaces of a silica (SiO.sub.2) support, which support also contains minor amounts of an oxide of aluminum, gallium or indium such that the ratio of NiO to metal oxide present in the catalyst is within the range of from about 4:1 to about 100:1. The catalyst may be prepared by precipitating a water insoluble nickel salt onto the surfaces of a silica support which has been impregnated with the metal oxide or onto a silica-alumina support which has been dealuminized such that the resulting nickel oxide/alumina ratio will fall within the ranges set forth above. The catalyst may then be activated by calcination in the presence of oxygen at a temperature within the range of from about 500.degree. to 700.degree. C.

    摘要翻译： 本发明提供了一种催化剂组合物，其有效用于以高产率从低级烯烃如丙烯和丁烯生产二烯体产物和高级烯烃产物，并且二聚体产物中的平均支化度小于约1.6 每个分子的甲基基团，通常在每分子约1.0至1.4个甲基的范围内。 本发明还提供了使用本发明的催化剂组合物生产这种二聚物和较高级烯烃产物的方法。 本发明的催化剂包括在二氧化硅（SiO 2）载体的表面上作为分散实质单层存在的无定形氧化镍（NiO），该载体还含有少量的铝，镓或铟的氧化物， 存在于催化剂中的NiO与金属氧化物在约4:1至约100:1的范围内。 催化剂可以通过将水不溶性镍盐沉淀到已经浸渍有金属氧化物的二氧化硅载体的表面上或已经脱铝的二氧化硅 - 氧化铝载体上，使得所得到的氧化镍/氧化铝比落入 上述范围。 催化剂然后可以在氧的存在下在约500-700℃的温度下煅烧来活化。

    Noble metal on rare earth modified silica alumina as hydrocarbon conversion catalyst
    78.
    发明授权
    Noble metal on rare earth modified silica alumina as hydrocarbon conversion catalyst 失效
    贵金属稀土改性二氧化硅作为烃转化催化剂

    公开(公告)号：US5208200A

    公开(公告)日：1993-05-04

    申请号：US842863

    申请日：1992-02-27

    申请人： Stuart L. Soled ,  Gary B. McVicker ,  William E. Gates

    发明人： Stuart L. Soled ,  Gary B. McVicker ,  William E. Gates

    IPC分类号： B01J21/12 ,  B01J23/63 ,  B01J37/02 ,  C07C5/27

    CPC分类号： B01J37/0215 ,  B01J21/12 ,  B01J23/63 ,  C07C5/2791

    摘要： Rare earth oxides, such as Nd.sub.2 O.sub.3 disperse onto the surface of SiO.sub.2 /Al.sub.2 O.sub.3 and act as weakly basic titrants. This lowers the acidity of SiO.sub.2 /Al.sub.2 O.sub.3 to close to that of chlorided alumina, as shown by model compound reaction tests. This support also disperses a noble metal such as Pt much better than undoped SiO.sub.2 /Al.sub.2 O.sub.3 and similar to chlorided alumina. Platinum on the rare earth modified silica alumina can function as a hydrocarbon conversion catalyst in reactions where Pt/chlorided Al.sub.2 O.sub.3 is used, such as in reforming, and isomerization, especially wax isomerization.

    摘要翻译： 稀土氧化物如Nd2O3分散在SiO2 / Al2O3表面，作为弱碱性滴定剂。 这样可以将SiO 2 / Al 2 O 3的酸度降低到氯化矾土的酸度，如模型化合物反应试验所示。 该载体还分散Pt等贵金属比未掺杂的SiO 2 / Al 2 O 3更好，并且类似于氯化氧化铝。 在稀土改性二氧化硅氧化铝上的铂可以在使用Pt /氯化Al 2 O 3的反应中起到烃转化催化剂的作用，如重整和异构化，特别是蜡异构化。

    Catalyst comprising TiO.sub.2 dispersed phase on a monolayer of SiO.sub.2 on alumina support
    80.
    发明授权
    Catalyst comprising TiO.sub.2 dispersed phase on a monolayer of SiO.sub.2 on alumina support 失效
    包含TiO 2分散相的催化剂在氧化铝载体上的SiO 2单层上

    公开(公告)号：US5073658A

    公开(公告)日：1991-12-17

    申请号：US644959

    申请日：1991-01-22

    申请人： Ramzi Y. Saleh ,  Stuart L. Soled ,  Nicholas C. Dispenziere

    发明人： Ramzi Y. Saleh ,  Stuart L. Soled ,  Nicholas C. Dispenziere

    IPC分类号： B01J21/12 ,  B01J23/08 ,  B01J37/08 ,  C07C2/10

    CPC分类号： B01J37/086 ,  B01J21/12 ,  B01J23/08 ,  C07C2/10 ,  C07C2521/04 ,  C07C2521/06 ,  C07C2521/08 ,  C07C2523/08

    摘要： The present invention provides for a non-nickel-containing catalyst which is effective for use in the production of dimer products and higher olefin products from a butene starting material at relatively high conversion, good selectivity towards octene production and good activity maintenance over prolonged polymerization times. The catalyst is prepared by impregnating an amorphous trivalent metal oxide support selected from the group consisting of aluminum oxide, gallium oxide and indium oxide with a silicon-containing precursor compound which, after calcination, yields a substantial mono layer of SiO.sub.2 on the surface of the metal oxide support. A disperse layer of TiO.sub.2 is then deposited on the surface of the SiO.sub.2 monolayer by application of a solvent solution of a precursor compound containing titanium onto the SiO.sub.2 monolayer, followed by calcination to reduce the precursor titanium compound to TiO.sub.2.

    摘要翻译： 本发明提供一种非镍的催化剂，其有效用于从相对较高转化率的丁烯原料生产二聚体产物和较高级烯烃产物，对于辛烯生产具有良好的选择性，并且在延长的聚合时间内具有良好的活性维持 。 催化剂是通过将选自氧化铝，氧化镓和氧化铟的无定形三价金属氧化物载体与含硅前体化合物浸渍制备的，其在煅烧后在其表面上产生基本的单层SiO 2 金属氧化物载体。 然后通过将含有钛的前体化合物的溶剂溶液施加到SiO 2单层上，然后将TiO 2的分散层沉积在SiO 2单层的表面上，随后煅烧以将前体钛化合物还原成TiO 2。