-
公开(公告)号：US20110306790A1
公开(公告)日：2011-12-15
申请号：US12966702
申请日：2010-12-13
申请人： Vincent J. Murphy , James Shoemaker , Guang Zhu , Raymond Archer , George Frederick Salem , Eric L. Dias
发明人： Vincent J. Murphy , James Shoemaker , Guang Zhu , Raymond Archer , George Frederick Salem , Eric L. Dias
IPC分类号： B01J23/52 , B01J21/08 , B01J29/04 , B01J21/18 , B01J37/08 , B01J37/12 , B01J37/16 , C07C51/235 , B01J23/652 , B01J21/06 , B01J21/16 , B82Y30/00
CPC分类号： B01J23/52 , B01J21/063 , B01J21/066 , B01J21/08 , B01J23/42 , B01J29/06 , B01J35/0006 , B01J35/0013 , B01J37/0211 , B01J37/0236 , B01J37/0248 , B01J37/18 , C07B2200/07 , C07C51/235 , C07C51/377 , C07C51/412 , C07C209/00 , C07C253/00 , C07D201/08 , C07D223/10 , C07D309/30 , C08G63/16 , C08G69/14 , C08G69/26 , C08G69/36 , Y02P20/582 , C07C59/285 , C07C55/14 , C07C211/12 , C07C255/04
摘要： Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.
摘要翻译： 公开了由铂和金组成的催化剂。 催化剂通常可用于选择性氧化由伯醇基团和至少一个仲醇基团组成的组合物，其中至少伯醇基团转化为羧基。 更具体地说，催化剂是负载催化剂，包括包含金的颗粒和包含铂的颗粒，其中铂与金的摩尔比在约100:1至约1:4的范围内，铂基本上以Pt（0）的形式存在， 并且含铂颗粒的尺寸在约2至约50nm的范围内。 还公开了将碳水化合物转化为羧酸或其衍生物的氧化化学催化转化的方法。 此外，公开了使用包含铂和金的催化剂将葡萄糖选择性氧化成葡糖二酸或其衍生物的方法。 此外，公开了用于生产这种催化剂的方法。
-
公开(公告)号：US20090217586A1
公开(公告)日：2009-09-03
申请号：US12395353
申请日：2009-02-27
CPC分类号： C10J3/54 , C10J3/482 , C10J2300/0903 , C10J2300/0916 , C10J2300/0943 , C10J2300/0986 , C10L1/326 , C10L5/04 , C10L5/44 , Y02E50/10 , Y02E50/30 , Y02P20/145
摘要： Particulate compositions are described comprising an intimate mixture of a coal and a gasification catalyst. The particulate compositions are gasified in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia and other higher hydrocarbons. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.
摘要翻译： 描述了包含煤和气化催化剂的紧密混合物的颗粒组合物。 颗粒组合物在蒸汽存在下气化，产生多种气体，包括甲烷和氢，一氧化碳，二氧化碳，硫化氢，氨和其它高级烃中的至少一种或多种。 还提供了用于制备颗粒组合物并将颗粒组合物转化为多种气态产物的方法。
-
公开(公告)号：US20080249331A1
公开(公告)日：2008-10-09
申请号：US11922244
申请日：2006-06-08
IPC分类号： C07C67/055 , B01J21/12
CPC分类号： B01J23/52 , B01J21/12 , B01J23/63 , B01J23/66 , B01J23/8926 , B01J35/023 , B01J35/10 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J37/0045 , B01J37/0201 , C07C67/055 , C07C69/01 , C07C69/15
摘要： A microspheroidal support for the manufacture of a vinyl acetate catalyst which support comprises substantially inert microspheroidal particles of a mixture of silica and 0.5 to 5 wt % (based on the total weight of the support) of aluminium oxide. A vinyl acetate catalyst comprising the microspheroidal support, palladium, at least one metal, M, selected from the group consisting of gold, cerium, copper and mixtures thereof and at least one metal. A, selected from the group consisting of Group I, Group II, lanthanide and transition metal promoters.
摘要翻译： 用于制备乙酸乙烯酯催化剂的微球状载体包含基本上惰性的二氧化硅混合物的微球形颗粒和0.5至5重量％（基于载体的总重量）的氧化铝。 包含微球载体，钯，至少一种选自金，铈，铜及其混合物的金属和M的乙酸乙烯酯催化剂和至少一种金属。 A，选自组I，组II，镧系元素和过渡金属促进剂。
-
公开(公告)号：US06534672B2
公开(公告)日：2003-03-18
申请号：US10004780
申请日：2001-12-04
IPC分类号： C07C6700
CPC分类号： B01J37/0205 , B01J23/58 , B01J23/63 , B01J35/002 , B01J35/006 , B01J35/023 , B01J35/1014 , B01J35/1038 , B01J35/1042 , B01J37/0045 , C07C67/055 , C07C69/01 , C07C69/15
摘要： A catalytically active material useful to prepare vinyl acetate monomer from ethylene, acetic acid, and an oxygen-containing gas under fluid bed conditions comprises a porous microspheroidal support containing catalytically active palladium crystallites finely dispersed within the support. This catalyst material does not require incorporation of gold to maintain activity and selectivity. A process to produce a vinyl acetate fluid bed catalyst in which catalytically active small palladium crystallites are finely dispersed within the support comprises dispersing selected metal species within the support which have an affinity to palladium to form very fine crystallites of palladium. The affinity metal species may be dispersed by impregnation onto a preformed microspheroidal support or may be intimately incorporated within the support before impregnation with a soluble palladium species.
-
公开(公告)号：US20090217590A1
公开(公告)日：2009-09-03
申请号：US12395348
申请日：2009-02-27
CPC分类号： C10J3/00 , B01J23/02 , B01J23/04 , B01J23/34 , B01J23/745 , B01J23/78 , B01J35/0006 , C10J3/482 , C10J2300/0903 , C10J2300/093 , C10J2300/0973 , C10J2300/0983 , C10J2300/0986 , C10J2300/1853 , C10L5/00 , C10L9/00 , Y02P20/52
摘要： Particulate compositions are described comprising an intimate mixture of a coal and a gasification catalyst in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.
-
公开(公告)号：US06399813B1
公开(公告)日：2002-06-04
申请号：US09929256
申请日：2001-08-14
申请人： Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
发明人： Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
IPC分类号： C07C67055
CPC分类号： B01J37/0045 , B01J21/08 , B01J23/44 , B01J23/52 , B01J23/56 , B01J23/58 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , C07C67/055 , C07C69/01 , C07C69/15
摘要： A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.
-
公开(公告)号：US06395676B2
公开(公告)日：2002-05-28
申请号：US09343832
申请日：1999-06-30
申请人： Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
发明人： Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
IPC分类号： B01J2304
CPC分类号： B01J37/0045 , B01J21/08 , B01J23/44 , B01J23/52 , B01J23/56 , B01J23/58 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , C07C67/055 , C07C69/01 , C07C69/15
摘要： A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.
-
公开(公告)号：US06358882B1
公开(公告)日：2002-03-19
申请号：US09455753
申请日：1999-11-15
IPC分类号： B01J2300
CPC分类号： B01J37/0205 , B01J23/58 , B01J23/63 , B01J35/002 , B01J35/006 , B01J35/023 , B01J35/1014 , B01J35/1038 , B01J35/1042 , B01J37/0045 , C07C67/055 , C07C69/01 , C07C69/15
摘要： A catalytically active material useful to prepare vinyl acetate monomer from ethylene, acetic acid, and an oxygen-containing gas under fluid bed conditions comprises a porous microspheroidal support containing catalytically active palladium crystallites finely dispersed within the support. This catalyst material does not require incorporation of gold to maintain activity and selectivity. A process to produce a vinyl acetate fluid bed catalyst in which catalytically active small palladium crystallites are finely dispersed within the support comprises dispersing selected metal species within the support which have an affinity to palladium to form very fine crystallites of palladium. The affinity metal species may be dispersed by impregnation onto a preformed microspheroidal support or may be intimately incorporated within the support before impregnation with a soluble palladium species.
摘要翻译： 用于在流化床条件下从乙烯，乙酸和含氧气体制备乙酸乙烯酯单体的催化活性材料包括含有细分散在载体内的催化活性钯微晶的多孔微球载体。 该催化剂材料不需要掺入金以维持活性和选择性。 一种生产乙酸乙烯酯流化床催化剂的方法，其中催化活性的小钯微晶细分散在载体内，包括将选择的金属物质分散在载体中，其对钯具有亲合力，以形成非常细的钯微晶。 亲和金属物质可以通过浸渍分散到预形成的微球载体上，或者在用可溶性钯物质浸渍之前可以紧密地掺入载体内。
-
公开(公告)号：US06350901B1
公开(公告)日：2002-02-26
申请号：US09363011
申请日：1999-07-29
IPC分类号： C07C67055
CPC分类号： B01J23/8926 , B01J8/24 , B01J23/44 , B01J23/58 , B01J23/60 , B01J23/66 , B01J23/892 , C07C67/055 , C07C69/01 , C07C69/15
摘要： In a process for production of vinyl acetate in which ethylene, liquid acetic acid and an oxygen-containing gas are fed to a fluid bed reactor containing a catalyst comprising a Group VIII metal, a promoter and a co-promoter, stickiness of the catalyst is reduced by limiting the amount of co-promoter to up to 6% by weight of the catalyst.
摘要翻译： 在制备乙酸乙烯酯的方法中，其中将乙烯，液态乙酸和含氧气体进料到含有第VIII族金属，助催化剂和助催化剂的催化剂的流化床反应器中，催化剂的粘性为 通过将助催化剂的量限制在高达6重量％的催化剂的量来减少。
-
公开(公告)号：US06806382B2
公开(公告)日：2004-10-19
申请号：US10336755
申请日：2003-01-06
申请人： Michael James Baker , John William Couves , Kenneth George Griffin , Peter Johnston , James Colin McNicol , George Frederick Salem
发明人： Michael James Baker , John William Couves , Kenneth George Griffin , Peter Johnston , James Colin McNicol , George Frederick Salem
IPC分类号： C07C6705
CPC分类号： B01J37/0201 , B01J35/0006 , B01J35/08 , C07C67/055 , C07C69/01 , C07C69/15
摘要： A process for preparing a supported metal catalyst composition which comprises impregnating microspheroidal support particles with a solution of at least one catalytically active metal, or precursor, drying the impregnated support particles and then treating the mobile metal, or precursor in a mobile state with a liquid comprising at least one reducing agent to deposit and immobilize the metal, or its precursor, in the support particles such that the metal, or its precursor, is distributed in the support particle in a layer below the surface of the support particle, the layer being between an inner and an outer region having a lower concentration of metal or precursor. Also, a composition comprising microspheroidal support particles having at least one catalytically active metal or precursor thereof distributed in a layer below the surface of the particles, the layer being between an inner and an outer region of the support particle each having a lower concentration of metal or precursor.
摘要翻译： 一种制备负载型金属催化剂组合物的方法，其包括用至少一种催化活性金属或前体的溶液浸渍微球载体颗粒，干燥浸渍的载体颗粒，然后用液体处理移动状态的可移动金属或前体 包括至少一种还原剂，以将金属或其前体沉积并固定在载体颗粒中，使得金属或其前体在载体颗粒表面下方的层中分布在载体颗粒中，该层为 在具有较低浓度的金属或前体的内部和外部区域之间。 另外，包含具有至少一种催化活性金属或其前体的微球支持颗粒的组合物分布在颗粒表面下方的层中，该层位于支撑颗粒的内部和外部区域之间，每个区域具有较低的金属浓度 或前体。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.017 秒)