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    • 22. 发明授权
    • Production of tertiary alkyl ethers and tertiary alkyl alcohols
    • 生产叔烷基醚和叔烷基醇
    • US5382705A
    • 1995-01-17
    • US973888
    • 1992-11-10
    • Harold S. ChungAndrew JacksonMargaret M. Wu
    • Harold S. ChungAndrew JacksonMargaret M. Wu
    • C07C2/10C07C29/04C07C41/06
    • C07C2/10C07C41/06C07C2521/08C07C2523/26
    • A process for upgrading a light olefin feed by converting the 1-olefins to higher molecular weight oligomers and the iso-oleins to fuel ethers or alcohols. The process provides substantial improvements in the production of lower alkyl tertiary alkyl ethers or tertiary alkyl alcohol, such as methyl tertiary butyl ether (MTBE), methyl tertiary amyl ether (TAME) or tertiary butyl alcohol. The 1-olefin component of the hydrocarbon feedstream is separated by selective oligomerization in contact with a reduced chromium oxide catalyst to form an olefin oligomer of higher molecular weight, such as gasoline, distillate and lube range hydrocarbons. The iso-olefins are separated by etherification with a lower alcohol such as methanol or by hydration to form an alcohol such as tertiary butanol. The oligomerization process can be integrated either upstream or downstream of the etherification step.
    • 通过将1-烯烃转化为较高分子量的低聚物和异油相到燃料醚或醇来提纯轻烯烃进料的方法。 该方法提供了生产低级烷基叔烷基醚或叔烷基醇如甲基叔丁基醚(MTBE),甲基叔戊基醚(TAME)或叔丁醇的实质性改进。 通过与还原的氧化铬催化剂接触的选择性低聚分离烃进料流的1-烯烃组分,以形成较高分子量的烯烃低聚物,例如汽油,馏出物和润滑油烃。 通过用低级醇如甲醇醚化或通过水合将异烯烃分离以形成醇如叔丁醇。 低聚过程可以在醚化步骤的上游或下游整合。
    • 24. 发明授权
    • Regeneration of reduced metal oxide oligomerization catalyst
    • 还原金属氧化物低聚催化剂的再生
    • US4996384A
    • 1991-02-26
    • US481279
    • 1990-02-20
    • Bruce P. PelrineMargaret M. Wu
    • Bruce P. PelrineMargaret M. Wu
    • B01J23/92B01J38/12C07C2/10
    • B01J23/92B01J38/12C07C2/10C07C2521/08C07C2523/26Y02P20/584
    • A process for producing oligomers from alpha-olefins, such as 1-decene, in which the olefins are oligomerized over a supported, reduced metal oxide catalyst from Group VIB of the Periodic Table to give oligomers with a branch ratio of less than 0.19. The catalyst, preferably a chromium/silica catalyst the catalyst can be regenerated to allow repeated recycling of the catalyst without a loss in yield of the oligomer product. The regeneration process comprises: (i) purging or stripping the deactivated catalyst with inert gas at elevated temperature to strip unreacted olefin and oligomer product from the catalyst; (ii) contacting the deactivated and purged catalyst with a stream of oxidizing gas while heating to elevated temperature to oxidize the metal component of the catalyst and remove carbonaceous deposits from the catalyst; (iii) cooling the oxidized catalyst and contacting it with a stream of reducing gas to reduce the metal component of the oxidized catalyst to a lower valence state. The oligomerization may be carried out at relatively high temperatures of about 90.degree. to 250.degree. C. to produce liquid lubricant products of high viscosity index, typically above 130, or at lower temperatures from about -20.degree. to about +90.degree. C. to product products of higher molecular weight which may be used as lubricant additives, e.g. VI improvers. The high molecular weight products are generally characterized by a branch ratio less than 0.19, a weight average molecular weight from about 15,000 to 200,000, a number average molecular weight from about 5,000 to about 50,000 and a molecular weight distribution from about 1 to about 5. They are also shear stable under high temperature, high shear rate conditions of 150.degree. C. and a shear rate of 10.sup.6 second.sup.-1.
    • 从α-烯烃如1-癸烯制备低聚物的方法,其中烯烃在负载型还原的金属氧化物催化剂上从元素周期表VIB中低聚,得到分支比小于0.19的低聚物。 催化剂,优选铬/二氧化硅催化剂,催化剂可以被再生以允许催化剂的反复循环而不会使低聚物产物的产率降低。 再生方法包括:(i)在升高的温度下用惰性气体吹扫或汽提失活的催化剂,以从催化剂中除去未反应的烯烃和低聚物产物; (ii)在加热至高温以使氧化催化剂的金属组分并从催化剂中除去含碳沉积物的同时使失活和净化的催化剂与氧化气体流接触; (iii)冷却氧化的催化剂并将其与还原气体流接触,以将氧化催化剂的金属组分降至更低的化合价态。 低聚反应可以在约90℃至250℃的相对高的温度下进行,以产生高粘度指数(通常在130以上)或在约-20℃至约+90℃的较低温度至 可用作润滑剂添加剂的较高分子量的产品,例如 VI改进剂 高分子量产物通常的特征在于分支比小于0.19,重均分子量为约15,000至200,000,数均分子量为约5,000至约50,000,分子量分布为约1至约5。 它们在150℃的高温,高剪切速率条件和106秒-1的剪切速率下也剪切稳定。
    • 26. 发明授权
    • Process for manufacturing olefinic oligomers having lubricating
properties
    • 制备具有润滑性能的烯烃低聚物的方法
    • US4827073A
    • 1989-05-02
    • US210434
    • 1988-06-23
    • Margaret M. Wu
    • Margaret M. Wu
    • C10G50/02C10M143/08C07C2/10
    • C10G50/02C10M143/08C10M2205/00C10M2205/028C10N2220/02
    • A process for oligomerizing alpha olefin to produce lubricant range hydrocarbon stock including the step of contacting said alpha olefin with a supported solid reduced Group VIB (e.g., chromium) catalyst under oligomerization conditions at a temperature of about 90.degree. to 250.degree. C. to produce liquid lubricant hydrocarbon. The product comprises the polymeric residue of linear C.sub.6 -C.sub.20 1-alkenes, said composition having a branch ratio of less than 0.19. The weight average molecular weight is between 420 and 45,000, number average molecular weight between 420 and 18,000, molecular weight distribution between 1 and 5 and pour point below -15.degree. C. The hydrogenated lubricant range hydrocarbon product has viscosity index of about 130 to 280 and viscosity up to about 750 cS. The process is particularly useful where the starting alpha olefin consists essentially of olefinic hydrocarbon having 8 to 14 carbon atoms or mixtures thereof; wherein the process conditions include reaction temperature of about 100.degree. to 180.degree.; and wherein the support catalyst includes porous inert silica.
    • 一种使α-烯烃低聚以产生润滑剂范围的烃原料的方法,包括在低温条件下在约90℃至250℃的温度下使所述α-烯烃与负载的固体还原的VIB族(例如铬)催化剂接触的步骤,以产生 液体润滑剂烃。 产物包含线性C 6 -C 20 1-烯烃的聚合残基,所述组合物具有小于0.19的分支比例。 重均分子量为420至45,000,数均分子量为420至18,000,分子量分布为1至5,倾点低于-15℃。氢化润滑剂范围烃产物的粘度指数为约130至280 粘度高达约750cS。 当起始α-烯烃基本上由具有8-14个碳原子的烯烃或其混合物组成时,该方法特别有用; 其中所述工艺条件包括约100°至180°的反应温度; 并且其中所述载体催化剂包括多孔惰性二氧化硅。