利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.033 秒)

    Aromatics alkylation process
    51.
    发明授权
    Aromatics alkylation process 失效
    芳烃烷基化方法

    公开(公告)号：US5191134A

    公开(公告)日：1993-03-02

    申请号：US732264

    申请日：1991-07-18

    申请人： Quang N. Le

    发明人： Quang N. Le

    IPC分类号： B01J29/04 ,  C07C2/66

    CPC分类号： C07C2/66 ,  B01J29/04 ,  C07C2529/70

    摘要： Long chain alkyl substituted aromatic compounds, particularly alkylated naphthalenes are produced by the alkylation of aromatics, e.g. naphthalene, with an olefin or other alkylating agent possessing at least 6 carbon atoms, usually 12 to 20 carbon atoms, in the presence of an alkylation catalyst which comprises a mesoporous crytalline material. The mesoporous material has pores with diameters of at least 13 .ANG. which, in the preferred catalytic form, are arranged in a uniform hexagonal arrangement, and have a X-ray diffraction pattern with at least one d-spacing greater than about 18 .ANG.. These materials exhibit benzene adsorption capacities greater than about 15 grams benzene per 100 grams at 50 torr and 25.degree. C. In its preferred catalytic form, the crystalline material exhibits 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： 长链烷基取代的芳族化合物，特别是烷基化萘是通过芳族化合物的烷基化生产的。 萘与具有至少6个碳原子，通常为12至20个碳原子的烯烃或其它烷基化剂在含有介孔催化剂的烷基化催化剂存在下反应。 介孔材料具有直径至少为13的孔，其以优选的催化形式排列成均匀的六边形排列，并且具有至少一个D间距大于约18的X射线衍射图。 这些材料在50托和25℃下表现出大于约15克苯/ 100克的苯吸附能力。在其优选的催化形式中，结晶材料表现出六边形电子衍射图，其可以以大于约18的d100值 ANGSTROM对应于X射线衍射图中的至少一个峰。

    Turbine oil production
    55.
    发明授权
    Turbine oil production 失效
    涡轮机油生产

    公开(公告)号：US5021142A

    公开(公告)日：1991-06-04

    申请号：US284048

    申请日：1988-12-14

    申请人： Robert W. Bortz ,  William E. Garwood ,  Quang N. Le ,  Stephen S. Wong

    发明人： Robert W. Bortz ,  William E. Garwood ,  Quang N. Le ,  Stephen S. Wong

    IPC分类号： C10G67/14

    CPC分类号： C10G67/14 ,  C10G2400/10

    摘要： Turbine oils are produced from a distillate lube fraction by solvent extraction to remove aromatics, e.g., with furfural, then dewaxing and hydrofinishing to saturate residual aromatics. Treatment with an organic peroxide, such as ditertiary butyl peroxide (DTBP), increases viscosity to compensate for the viscosity loss during the hydrofinishing. Dewaxing may be solvent or catalytic dewaxing or both. Peroxide treatment also reduces cloud point.

    摘要翻译： 涡轮机油通过溶剂萃取由馏出液润滑油馏分产生，以除去芳族化合物，例如用糠醛，然后脱蜡和加氢精制以使残余芳族化合物饱和。 用有机过氧化物如二叔丁基过氧化物（DTBP）处理可增加粘度以补偿加氢精制过程中的粘度损失。 脱蜡可以是溶剂或催化脱蜡或两者。 过氧化物治疗也减少了浊点。

    Process for producing alkylaromatic lubricant fluids
    56.
    发明授权
    Process for producing alkylaromatic lubricant fluids 失效
    生产烷基芳族润滑剂流体的方法

    公开(公告)号：US5019670A

    公开(公告)日：1991-05-28

    申请号：US515030

    申请日：1990-04-26

    申请人： Quang N. Le ,  Bruce P. Pelrine ,  Joosup Shim

    发明人： Quang N. Le ,  Bruce P. Pelrine ,  Joosup Shim

    IPC分类号： B01J29/04 ,  C07C2/12 ,  C07C2/66 ,  C07C37/14 ,  C07C51/347

    CPC分类号： C07C37/14 ,  B01J29/04 ,  C07C2/12 ,  C07C2/66 ,  C07C51/347 ,  C07C2529/06 ,  C07C2529/70

    摘要： The thermal and oxidative stability of HVI-PAO olefin oligomers is improved by alkylation in the presence of a solid, porous, acidic alkylation catalyst defined by a specific X-ray diffraction pattern. A preferred catalyst is the synthetic zeolite MCM-22. The olefinic oligomers used as alkylating agents are prepared from 1-alkene oligomerization in contact with a reduced metal oxide, preferably reduced chromium oxide, catalyst on support such as silica. Aromatics which may be used in the reaction include monocyclic aromatics such as benzene and toluene as well as bicyclic aromatics such as naphthalene. Substituted aromatics may be used in order to introduce functional groups such as hydroxyl groups into the products, for example by the use of hydroxyaromtics such as phenol or naphthaol. The alkylated aromatic hydrocarbon products retain the unique features of the alkylating olefinic oligomer and exhibit high viscosity index and low pour point as well as improved thermal and oxidative stability and additive solvency characteristics.

    摘要翻译： 在特定X射线衍射图所定义的固体，多孔酸性烷基化催化剂存在下，通过烷基化改进了HVI-PAO烯烃低聚物的热和氧化稳定性。 优选的催化剂是合成沸石MCM-22。 用作烷基化剂的烯烃低聚物由与还原的金属氧化物，优选还原的氧化铬，载体如二氧化硅上的催化剂接触的1-烯烃低聚制备。 可用于反应的芳族化合物包括单环芳族化合物如苯和甲苯以及双环芳烃如萘。 可以使用取代的芳族化合物，以便将诸如羟基的官能团引入产物中，例如通过使用羟基促进剂如苯酚或石脑油。 烷基化芳烃产物保留了烷基化烯属低聚物的独特特征，并表现出高粘度指数和低倾点，以及改善的热和氧化稳定性和添加剂溶解性能。

    Reactivation of noble metal-containing catalyst materials
    58.
    发明授权
    Reactivation of noble metal-containing catalyst materials 失效
    贵金属催化剂材料的再活化

    公开(公告)号：US4650780A

    公开(公告)日：1987-03-17

    申请号：US797547

    申请日：1985-11-13

    申请人： Sowmithri Krishnamurthy ,  Quang N. Le ,  Stephen S. Wong

    发明人： Sowmithri Krishnamurthy ,  Quang N. Le ,  Stephen S. Wong

    IPC分类号： B01J29/90 ,  B01J38/18 ,  C10G35/095 ,  B01J29/38 ,  C10G47/18

    CPC分类号： B01J38/18 ,  B01J29/90 ,  C10G35/095

    摘要： A coke-deactivated noble metal-containing catalyst is sulfided with a sulfiding agent, e.g., H.sub.2 S in H.sub.2, then coke is burned from the sulfided catalyst by contacting the catalyst with oxygen, optionally in the presence of sulfur dioxide, and then the catalyst is reduced with a reducing agent, e.g., H.sub.2. The process permits burning off coke while avoiding excessive agglomeration of the noble metals on the catalyst.

    摘要翻译： 一种焦炭失活的含贵金属的催化剂用硫化剂硫化，例如在H 2中的H 2 S.然后，任选地在二氧化硫存在下，通过使催化剂与氧接触，从硫化催化剂中将焦炭燃烧，然后催化剂是 用还原剂还原，例如H2。 该方法允许燃烧焦炭，同时避免贵金属在催化剂上的过度聚集。

    Process for selective removal of CCR, arsenic and conjugated diolefins from shale oil
    59.
    发明授权
    Process for selective removal of CCR, arsenic and conjugated diolefins from shale oil 失效
    从页岩油中选择性除去CCR，砷和共轭二烯烃的方法

    公开(公告)号：US4501652A

    公开(公告)日：1985-02-26

    申请号：US544021

    申请日：1983-10-20

    申请人： Quang N. Le ,  Daniel J. Neuman

    发明人： Quang N. Le ,  Daniel J. Neuman

    IPC分类号： C10G65/04 ,  C10G65/06 ,  C10G67/06

    CPC分类号： C10G65/04

    摘要： A hydrocarbonaceous feedstock upgrading process is disclosed. Spent nickel arsenide-containing catalyst from demetallation guard chambers or hydroprocessing operations are utilized to upgrade the hydrocarbonaceous feedstock prior to dearsenation. The spent catalysts have significant activity for diolefin saturation and CCR removal at temperatures low enough to reduce olefin polymerization reactions.

    摘要翻译： 公开了一种含烃原料提质方法。 来自脱金属保护室或加氢处理操作的耗氧化镍催化剂用于在脱砷之前升级含烃原料。 废催化剂在低至足以降低烯烃聚合反应的温度下对二烯烃饱和和CCR去除具有显着的活性。