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    • 31. 发明授权
    • Method for preparing a highly dispersed supported nickel catalyst
    • 制备高度分散的负载型镍催化剂的方法
    • US4073750A
    • 1978-02-14
    • US688154
    • 1976-05-20
    • David J. C. YatesLawrence L. Murrell
    • David J. C. YatesLawrence L. Murrell
    • C10G35/06B01J23/755B01J37/02C07B31/00C07B61/00C07C1/00C07C4/06C07C4/10C07C5/10C07C9/04C07C13/18C07C67/00C10G49/04B01J29/14B01J23/74
    • C07C4/10B01J23/755C07C5/10B01J35/0053B01J35/006B01J35/0066B01J37/0203C07C2101/14C07C2521/04C07C2521/08C07C2523/755Y10S502/506Y10S502/509Y10S502/513
    • This invention relates to a method for making supported nickel catalysts which are characterized as having the nickel in a highly dispersed state, the catalysts and use thereof in hydrogenation, reforming and hydrocarbon synthesis reactions, for example, Fischer-Tropsch reactions. Catalysts prepared by the method of the instant invention, wherein nonaqueous solutions are used in preparing the catalyst, are characterized as having a degree of dispersion of at least 10% greater than similar catalysts prepared by the prior art aqueous impregnation techniques and in some instances show an improved degree of dispersion of more than 50% over the catalysts prepared by the prior art methods. In the method of the instant invention the catalyst is prepared by slurrying a nickel metal precursor dissolved in a nonaqueous organic solvent with a high surface area support, for example, a refractory inorganic oxide, preferably selected from the group consisting of silica and alumina, removing the solvent to obtain a composite of said nickel metal precursor and said support and activating said composite by reducing in hydrogen at conditions sufficient to convert substantially all the nickel metal precursor to nickel metal. The nonaqueous solvent is preferably selected from the group consisting of aldehydes, ketones, ethers and organic nitrogen compounds, for example, acetone, acetonitrile, N,N-dimethyl formamide, hexamethyl phosphoramide, diethylether, tetrahydrofuran, dioxane, methylethyl ketone and acetaldehyde.
    • 本发明涉及一种制备负载镍催化剂的方法,其特征在于镍处于高度分散状态,催化剂及其在氢化,重整和烃合成反应中的用途,例如费 - 托反应。 通过本发明方法制备的催化剂,其中非水溶液用于制备催化剂,其特征在于具有比现有技术的含水浸渍技术制备的类似催化剂大至少10%的分散度,并且在某些情况下显示出 与现有技术方法制备的催化剂相比,分散度提高了超过50%。 在本发明的方法中,催化剂是通过将溶解在非水有机溶剂中的镍金属前体与高表面积的载体如耐火无机氧化物,优选选自二氧化硅和氧化铝,除去 溶剂,以获得所述镍金属前体和所述载体的复合物,并通过在足以将基本上所有镍金属前体转化为镍金属的条件下还原氢而活化所述复合物。 非水溶剂优选选自醛,酮,醚和有机氮化合物,例如丙酮,乙腈,N,N-二甲基甲酰胺,六甲基磷酰胺,二乙醚,四氢呋喃,二恶烷,甲基乙基酮和乙醛。
    • 36. 发明授权
    • Method of preparing highly active nickel catalysts and catalysts
prepared by said method
    • 通过所述方法制备高活性镍催化剂和催化剂的方法
    • US4160745A
    • 1979-07-10
    • US856262
    • 1977-12-01
    • Lawrence L. MurrellDavid J. C. Yates
    • Lawrence L. MurrellDavid J. C. Yates
    • B01J23/755C07C1/00C07C5/10C07C13/18C07C67/00B01J21/04B01J21/08B01J21/12B01J23/74
    • B01J23/755C07C5/10C07C2101/14C07C2521/04C07C2521/06C07C2521/08C07C2521/10C07C2521/12C07C2523/755C07C2529/04
    • The instant invention relates to a method for preparing high activity supported nickel catalysts. The method comprises the deposition of nickel nitrate on a carrier, typically an inert inorganic refractory oxide, by techniques known in the art followed by careful heating to a temperature of between 100.degree. to 270.degree. C., avoiding any excursions into temperatures beyond the stated maxima, in a flowing nonreactive gas atmosphere for a time sufficient to convert substantially all of the nickel nitrate into nickel oxide. When using an H.sub.2 containing atmosphere the maximum temperature is 220.degree. C. The supported nickel oxide resulting from the above procedure is then reduced to a supported nickel metal catalyst in a reducing atmosphere at a temperature ranging from about 230.degree. C. to 400.degree. C.The instant invention also relates to a new class of supported nickel metal catalysts having a specific activity of at least twice the specific activities of prior art catalysts as determined for the hydrogenation of benzene. These catalysts comprise from 0.1 to 50 wt. % nickel on a support, preferably 0.5 to 20 wt. % nickel, most preferably about 17 wt. % nickel on a support, wherein the support is as defined above.
    • {PG,1本发明涉及一种制备高活性负载镍催化剂的方法。 该方法包括通过本领域已知的技术将镍硝酸盐沉积在载体上,通常为惰性的无机难熔氧化物,然后小心地加热至100(20 {0〜270 {20 {0℃,避免任何 在流动的非反应性气体气氛中,足以将基本上所有的硝酸镍转化为氧化镍的时间,超出超出所述最大值的温度。 当使用H {HD 2 {L的气氛时,最高温度为220 {20 {0℃。然后将上述步骤得到的负载的氧化镍在还原气氛中,在约 230 {20 {0 C.到400 {20 {0 C.
    • 39. 发明授权
    • High surface area ruthenium bonding supports on monolithic ceramics
    • 高整体陶瓷表面积钌键合支持
    • US3990998A
    • 1976-11-09
    • US583508
    • 1975-06-03
    • John P. DeLucaGary B. McVickerLawrence L. Murrell
    • John P. DeLucaGary B. McVickerLawrence L. Murrell
    • B01D53/94B01J21/00B01J23/46B01J37/02
    • B01J21/005B01D53/9413B01J23/462B01J37/024B01D2255/1026B01D2255/2047B01D2255/405B01D2255/9027B01D2255/9207
    • The instant invention relates to high surface area multilayered oxide supports coated with ruthenium of the type Ru-MgO-MgAl.sub.2 O.sub.4 -MgAl.sub.2 O.sub.4 +Mg.sub.2 SiO.sub.4 -Core. The system comprises ruthenium on a critical amount of free MgO, i.e., at least 2 wt. % minimum, on pre-reacted Al.sub.2 O.sub.3 which itself is on a monolithic ceramic substrate. This combination demonstrates the desirable, and previously unachievable characteristic of resistance to ruthenium volatilization and agglomeration, coupled with high catalytic activity. The high surface area oxides (MgO+Al.sub.2 O.sub.3) are strongly bonded to and reacted with the monolithic core substructure so as to possess physical strength. Ruthenium catalyst systems prepared utilizing the supported support (multilayered mixed oxides) method disclosed by the instant invention are useful for the treatment of waste gases, particularly exhaust gases from internal combustion engines and stationary sources and the removal of oxides of nitrogen therefrom.
    • 本发明涉及涂覆有Ru-MgO-MgAl2O4-MgAl2O4 + Mg2SiO4型芯的钌的高表面积多层氧化物载体。 该系统包含临界量的游离MgO的钌,即至少2wt。 对本身在单片陶瓷基板上的预反应的Al 2 O 3的最小值。 这种组合证明了对钌挥发和附聚的耐受性以及先前难以达到的特性,加上高催化活性。 高表面积氧化物(MgO + Al2O3)与整体式核心子结构牢固地结合并与其反应以具有物理强度。 使用本发明公开的支撑载体(多层混合氧化物)制备的钌催化剂体系可用于处理废气,特别是来自内燃机和固定源的废气以及从其中除去氮氧化物。