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    • 1. 发明授权
    • Method for preparing high-purity ionic liquids
    • 制备高纯度离子液体的方法
    • US06852229B2
    • 2005-02-08
    • US10277420
    • 2002-10-22
    • Christian P. MehnertNicholas C. DispenziereRaymond A. Cook
    • Christian P. MehnertNicholas C. DispenziereRaymond A. Cook
    • B01J31/02C07C45/50C07D213/20C07D521/00B01D11/04
    • C07D213/20B01J31/0234C07D231/12C07D233/56C07D249/08
    • A method for preparing a high-purity ionic liquid having a pH value of 7 and an elemental analysis deviation of less than 0.5 wt % between a calculated elemental analysis and a found elemental analysis for each of carbon, hydrogen and nitrogen, wherein the method comprises forming a monophasic or biphasic mixture of an ionic liquid and an inert liquid. When the monophasic mixture is formed, it is filtered to yield a filtrate from which the high-purity ionic liquid is recovered. When the biphasic mixtures is formed, it is separated into an aqueous phase and ionic liquid phase, whereby the ionic liquid phase is filtered to yield a filtrate from which the high-purity ionic liquid is recovered. Furthermore, the present purification procedure can be used for the clean-up of a contaminated ionic liquid by extracting it into a polar extractant to form an extract containing the ionic liquid. Water traces are removed from the extract. Then, the extract is filtered and the high-purity ionic liquid is recovered from the filtered extract.
    • 在计算的元素分析和针对碳,氢和氮各自的元素分析中,制备pH值为7并且元素分析偏差小于0.5重量%的高纯度离子液体的方法,其中所述方法包括 形成离子液体和惰性液体的单相或双相混合物。 当形成单相混合物时,将其过滤以产生从其中回收高纯度离子液体的滤液。 当形成双相混合物时,将其分离成水相和离子液相,由此过滤离子液相以产生从其中回收高纯度离子液体的滤液。 此外,本纯化方法可用于通过将污染的离子液体提取到极性萃取剂中以形成含有离子液体的提取物来清理污染的离子液体。 从提取物中除去水迹。 然后,将提取物过滤并从过滤的提取物中回收高纯度离子液体。
    • 4. 发明授权
    • Catalyst comprising amorphous NiO on silica/alumina support and process
for butene dimerization
    • 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
    • US5254783A
    • 1993-10-19
    • US938094
    • 1992-08-31
    • Ramzi Y. SalehStuart L. SoledNicholas C. Dispenziere
    • Ramzi Y. SalehStuart L. SoledNicholas C. Dispenziere
    • B01J23/755B01J37/02B01J37/03C07C2/04
    • B01J23/755B01J37/0217B01J37/031
    • 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.
    • 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。
    • 6. 发明授权
    • Catalyst comprising amorphous NiO on silica/alumina support
    • 包含在二氧化硅/氧化铝载体上的无定形NiO的催化剂
    • US5169824A
    • 1992-12-08
    • US644998
    • 1991-01-22
    • Ramzi Y. SalehStuart L. SoledNicholas C. Dispenziere
    • Ramzi Y. SalehStuart L. SoledNicholas C. Dispenziere
    • B01J23/755B01J37/02B01J37/03
    • B01J37/0217B01J23/755B01J37/031
    • 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.
    • 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。
    • 10. 发明授权
    • Catalysts comprising silica supported on alumina, their preparation and
use
    • 包含负载在氧化铝上的二氧化硅的催化剂,其制备和用途
    • US4778779A
    • 1988-10-18
    • US37506
    • 1987-04-13
    • Lawrence L. MurrellNicholas C. Dispenziere, Jr.David E. Vaughan
    • Lawrence L. MurrellNicholas C. Dispenziere, Jr.David E. Vaughan
    • B01J21/12C10G11/04C10G47/16
    • C10G11/04B01J21/12
    • Useful cracking catalysts and catalyst supports comprising silica supported on alumina are prepared by compositing particles of silica or silica precursor with particles of porous alumina and subjecting the resulting composite to high temperature steaming in a non-reducing environment at a temperature of at least about 500.degree. C. for a time sufficient to disperse at least a portion of the silica over the alumina surface. The silica wets, spreads out and reactions with the surface hydroxyul groups of the alumina. The supported silica on alumina composites that can be made from this process may exhibit properties of both bulk silica and bulk alumina at the same time, bulk silica and alumina whose exterior surface only has been modified with silica as wells as composites exhibiting surface properties different from both bulk silica and bulk alumina.
    • 通过将二氧化硅或二氧化硅前体的颗粒与多孔氧化铝的颗粒合成,并将所得的复合材料在至少约500℃的非还原性环境中进行高温蒸汽来制备包含负载在氧化铝上的二氧化硅的有用的裂解催化剂和催化剂载体 在足以在氧化铝表面上分散二氧化硅的至少一部分的时间。 二氧化硅湿润,扩散和与氧化铝的表面羟基的反应。 可以由该方法制备的负载二氧化硅的氧化铝复合材料可以同时显示本体二氧化硅和本体氧化铝的本体二氧化硅和氧化铝的性质,其外表面仅仅用二氧化硅作为表面改性的复合材料,表现出与 本体二氧化硅和体积氧化铝。