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1. 发明授权

US06448199B1 Hydrophobic composite Pd-membrane catalyst useful for non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide and method of its preparation 失效
标题翻译：疏水复合Pd膜催化剂用于氧气对氧气的非危险的直接氧化过氧化氢及其制备方法
公开(公告)号：US06448199B1
公开(公告)日：2002-09-10
申请号：US09655978
申请日：2000-09-05
申请人： Vasant Ramchandra Choudhary , Subhash Dwarkanath Sansare , Abaji Govind Gaikwad
发明人： Vasant Ramchandra Choudhary , Subhash Dwarkanath Sansare , Abaji Govind Gaikwad
IPC分类号： B01J2342
CPC分类号： B01J23/38 , B01J23/44 , B01J35/065
摘要： A hydrophobic composite Pd-membrane catalyst, useful for the non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide, without a gas phase mixing of hydrogen and oxygen or air, having the general formula: HPM (c)/SOMF (b)/MxPd1−x (a)/IPM wherein, IPM is an inorganic porous membrane, MxPd1−x is a metal alloy, permeable only to hydrogen gas, Pd is a palladium metal; M is a metal other than palladium, or a mixture of two or more thereof; x is a mole fraction of the metal M in the metal alloy (MxPd1−x), a, in the round bracket, is a weight of the metal alloy per unit area of IPM; SOMF is a surface oxidized thin metal film comprising palladium b, in the round bracket, is a thickness of SOMF; HPM is a hydrophobic polymer membrane and c, in the round bracket , is a weight of the HPM per unit area of SOMF and a process for producing the said catalyst.
摘要翻译：具有以下通式的HPM（c）/ SOMF（b））的疏水性复合Pd膜催化剂，其用于将氢气氧化成过氧化氢而无气态混合氢气和空气的非危险性直接氧化， / MxPd1-x（a）/ IPM其中，IPM是无机多孔膜，MxPd1-x是仅对氢气可渗透的金属合金，Pd是钯金属; M是除钯以外的金属，或其两种以上的混合物; x是金属合金（MxPd1-x）中的金属M的摩尔分数，圆形支架中的a是每单位面积IPM的金属合金的重量; SOMF是包含钯b的表面氧化薄金属膜，在圆形支架中是SOMF的厚度; HPM是疏水性聚合物膜，c在圆形支架中，是单位面积的SOMF的HPM的重量和用于生产所述催化剂的方法。

2. 发明授权

US06534440B2 Process for the activation of a metallic palladium based catalyst useful for the direct oxidation of hydrogen to hydrogen peroxide 失效
公开(公告)号：US06534440B2
公开(公告)日：2003-03-18
申请号：US09725640
申请日：2000-11-29
申请人： Vasant Ramchandra Choudhary , Abaji Govind Gaikwad , Subhash Dwarkanath Sansare
发明人： Vasant Ramchandra Choudhary , Abaji Govind Gaikwad , Subhash Dwarkanath Sansare
IPC分类号： B01J2344
CPC分类号： B01J23/44 , B01J21/04 , B01J21/18 , B01J23/40 , B01J23/63 , B01J37/12 , C01B15/029
摘要： This invention provides a process for the activation of a metallic palladium containing catalyst which is useful for the direct oxidation of hydrogen by oxygen to hydrogen peroxide, by treating the catalyst with an oxidising agent in order to at least partially oxidise the metallic palladium contained in the catalyst to palladium (TT) oxide. The selectivity and yield of the catalyst for hydrogen peroxide are observed to increase substantially and the hydrogen peroxide decomposition activity of the catalyst is drastically reduced.

3. 发明授权

US06432376B1 Membrane process for the production of hydrogen peroxide by non-hazardous direct oxidation of hydrogen by oxygen using a novel hydrophobic composite Pd-membrane catalyst 失效
标题翻译：使用新的疏水复合Pd膜催化剂通过氧的非危险的直接氧化氧气生产过氧化氢的膜工艺
公开(公告)号：US06432376B1
公开(公告)日：2002-08-13
申请号：US09655970
申请日：2000-09-05
申请人： Vasant Ramchandra Choudhary , Subhash Dwarkanath Sansare , Abaji Govind Gaikwad
发明人： Vasant Ramchandra Choudhary , Subhash Dwarkanath Sansare , Abaji Govind Gaikwad
IPC分类号： C01B1501
CPC分类号： B01J31/06 , B01J23/44 , B01J35/065 , B01J2231/70 , C01B3/501 , C01B15/029 , C01B2203/041 , C01B2203/0495
摘要： The above objects are achieved by providing a novel process for the production of hydrogen peroxide, by the non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide, without the formation of an explosive H2 and O2 gas mixture, using a novel tubular hydrophobic composite Pd-membrane catalyst, represented by a formula: HPM (c)/SOMF (b)/MxPd1−x(a)/IPM Wherein: IPM is an inorganic porous membrane, permeable to all gases and vapors, in a form of tube having a thickness of at least 0.5 mm and internal diameter of at least 0.6 cm; Mx Pd1−x is a metal alloy, permeable only to hydrogen gas, deposited on the inner side of IPM; Pd is a palladium metal; M is a metal selected from copper, silver, gold, noble metals other than palladium, or a mixture of two or more thereof; x is a mole fraction of the metal M in the metal alloy (MxPd1−x) in the range from about 0.03 to about 0.6; (a) is a weight of the metal alloy per unit area of IPM in the range from about 5.0 g.m−2 to about 500 g.m−2; SOMF is a surface oxidized thin metal film comprising palladium which is permeable only to hydrogen, deposited on the metal alloy (Mx Pd1−x); (b) is a thickness of SOMF in the range from about 0.05 &mgr;m to about 5.0 &mgr;m; HPM is a hydrophobic polymer membrane permeable to hydrogen and oxygen gases and also to vapors of water and hydrogen peroxide but not to liquid water or aqueous solution; and (c) is a weight of the HPM per unit area of SOMF in the range from about 0.2 g.m−2 to about 40 g.m−2.
摘要翻译：上述目的通过提供一种用于生产过氧化氢的新方法，通过将氧气由氧气直接氧化成过氧化氢，而不形成爆炸性的H 2和O 2气体混合物，使用新的管状疏水性复合物 Pd膜催化剂，由下式表示：其中：IPM是一种无机多孔膜，可渗透所有气体和蒸汽，其形式为管，其厚度至少为0.5mm，内径为至少0.6cm; Mx Pd1-x是一种金属合金，只能渗透氢气，沉积在IPM的内侧; Pd是钯金属; M是选自铜，银，金，钯以外的贵金属或其两种以上的混合物的金属; x是金属合金（MxPd1-x）中的金属M在约0.03至约0.6的范围内的摩尔分数; （a）是每单位面积IPM的金属合金的重量在约5.0g.m-2至约500g.m-2的范围内; SOMF是沉积在金属合金（Mx Pd1-x）上的，仅透氢的钯的表面氧化薄金属膜; （b）是约0.05μm至约5.0μm范围内的SOMF的厚度; HPM是一种对氢气和氧气可透过的疏水性聚合物膜，也是水和过氧化氢的蒸气，而不是液态水或水溶液; 和（c）是每单位面积的SOMF的HPM的重量在约0.2g.m-2至约40g.m-2的范围内。

4. 发明授权

US06346228B1 Hydrophobic multicomponent catalyst useful for direct oxidation of hydrogen to hydrogen peroxide 失效
标题翻译：用于将氢直接氧化成过氧化氢的疏水性多组分催化剂
公开(公告)号：US06346228B1
公开(公告)日：2002-02-12
申请号：US09487427
申请日：2000-01-19
申请人： Vasant Ramchandra Choudhary , Subhash Dwarkanath Sansare , Abaji Govind Gaikwad
发明人： Vasant Ramchandra Choudhary , Subhash Dwarkanath Sansare , Abaji Govind Gaikwad
IPC分类号： C01B1501
CPC分类号： B01J37/0205 , B01J23/38 , B01J27/13 , B01J29/068 , B01J33/00 , C01B15/029
摘要： The present invention relates to a novel hydrophobic multicomponent catalyst useful in the direct oxidation of hydrogen to hydrogen peroxide and to a method for the preparation of such catalyst. More specifically, this invention relates to a novel hydrophobic muticomponent catalyst comprising a hydrophobic polymer membrane deposited on a Pd containing acidic catalyst, useful for the direct oxidation of hydrogen by oxygen to hydrogen peroxide, an a method for preparing the same.
摘要翻译：本发明涉及一种用于将氢直接氧化成过氧化氢的新型疏水性多组分催化剂及其制备方法。更具体地说，本发明涉及一种新颖的疏水性多组分催化剂，其包含沉积在含Pd的酸性催化剂上的疏水聚合物膜，其用于将氧气直接氧化为过氧化氢，其制备方法。

5. 发明授权

US07432222B2 High temperature stable non-noble metal catalyst, process for production of syngas using said catalyst 失效
标题翻译：高温稳定的非贵金属催化剂，使用所述催化剂生产合成气的方法
公开(公告)号：US07432222B2
公开(公告)日：2008-10-07
申请号：US10978791
申请日：2004-11-01
申请人： Vasant Ramchandra Choudhary , Kartick Chandra Mondal , Ajit Singh Mamman
发明人： Vasant Ramchandra Choudhary , Kartick Chandra Mondal , Ajit Singh Mamman
IPC分类号： B01J23/00 , C01B3/26 , C01B3/28
CPC分类号： C01B3/386 , B01J21/066 , B01J23/002 , B01J23/83 , B01J35/1009 , B01J37/0201 , B01J2523/00 , C01B2203/0261 , C01B2203/1041 , C01B2203/1052 , C01B2203/1058 , C01B2203/1241 , Y02P20/142 , Y02P20/52 , B01J2523/17 , B01J2523/22 , B01J2523/36 , B01J2523/3712 , B01J2523/847 , B01J2523/845
摘要： This invention discloses a high temperature stable, supported, non-noble metal catalyst, represented by a general formula: NiCoaCebMgcYdOx(y)/S, wherein S is a low surface area, macroporous, highly sintered, solid support comprising zirconium and hafnium oxides with less than 3 wt % silica and/or alumina having a surface area less than 1.0 m2/g and pore diameter greater than 0.1 micron, in the form of pellet, ring, monolith or granules; a is from 0.01 to 10; b is from 0.001 to 10; c is from 0.001 to 10; d is from 0.005 to 5; x is number of oxygen atoms required to fulfill the valance requirement of the metallic elements; and y is weight percent loading of the active catalyst mass, on the support, S, in the range from 0.7% to 70%. The invention also discloses a process for the partial oxidation of hydrocarbon(s) to syngas using the thermally stable catalyst.
摘要翻译：本发明公开了一种高温稳定的，负载型的非贵金属催化剂，由以下通式表示：NiCo a S a B b Mg C y （y）/ S，其中S是低表面积，大孔，高度烧结的固体载体，其包含锆和氧化铪，具有小于3重量％的二氧化硅和/或表面积小于1.0m 2 / g且孔径大于0.1微米的氧化铝，以颗粒，环，整料或颗粒的形式; a为0.01〜10; b为0.001〜10; c为0.001〜10; d为0.005〜5; x是满足金属元素的价格要求所需的氧原子数; y是活性催化剂物质在载体上的重量百分比，S在0.7％至70％的范围内。本发明还公开了一种使用热稳定催化剂将烃部分氧化成合成气的方法。

6. 发明授权

US07288240B2 Method for production of hydrogen peroxide with improved yield and selectivity by direct oxidation of hydrogen over palladium containing catalyst 失效
标题翻译：通过在含钯催化剂上直接氧化氢而提高产率和选择性的过氧化氢生产方法
公开(公告)号：US07288240B2
公开(公告)日：2007-10-30
申请号：US11167573
申请日：2005-06-27
申请人： Vasant Ramchandra Choudhary , Chancal Samanta , Prabhas Jana
发明人： Vasant Ramchandra Choudhary , Chancal Samanta , Prabhas Jana
IPC分类号： C01B15/029 , B01J27/13
CPC分类号： C01B15/029
摘要： A method for improving drastically both the selectivity and yield of hydrogen peroxide in the direct oxidation of hydrogen to hydrogen peroxide over a solid catalyst comprising palladium, which comprises: i) depositing on the solid catalyst at least two halogen containing compounds, one compound essentially comprising bromine and second compound essentially comprising fluorine with the bromine to palladium and fluorine to palladium atom ratios in the range from 0.02 to 20 and from 0.01 to 50, respectively; ii) decomposing the halo compounds deposited on the solid catalyst by calcination at a temperature above 200° C. under inert, reducing or oxidizing gas atmosphere or under vacuum; and iii) contacting the solid catalyst obtained from step (ii) with a gas mixture consisting of hydrogen and oxygen or air or O2 enriched air in an aqueous reaction medium, comprising a mineral acid at the following reaction conditions: concentration of mineral acid in the reaction medium above 0.001 mol/dm3, concentration of the solid catalyst in the reaction medium above 0.01 g/dm3, H2/O2 mole ratio in the gas mixture in the range from 0.01 to 10, flow rate of the gas mixture in the range from 50 cm3/g catalyst/h to 50,000 cm3/g catalyst/h, gas pressure at least 0.9 atm, and temperature below 100° C. and contact period of the reaction medium at least 0.01 h, is disclosed.
摘要翻译：一种用于在包含钯的固体催化剂中将氢气直接氧化成过氧化氢的过氧化氢的选择性和产率大大提高的方法，其包括：i）在固体催化剂上沉积至少两种含卤素的化合物，一种化合物基本上包含溴和第二化合物，其主要包含氟，溴与钯和氟与钯的比例分别为0.02至20和0.01至50; ii）通过在惰性，还原或氧化气体气氛或真空下在高于200℃的温度下煅烧来分解沉积在固体催化剂上的卤代化合物; 和iii）将由步骤（ii）获得的固体催化剂与由氢气和氧气组成的气体混合物或空气或富含O 2的空气在含水反应介质中接触，所述反应介质在下列反应中包含无机酸条件：反应介质中无机酸的浓度高于0.001mol / dm 3，反应介质中的固体催化剂浓度高于0.01g / dm 3，H

7. 发明授权

US07157071B2 Process for preparing hydrogen peroxide 失效
公开(公告)号：US07157071B2
公开(公告)日：2007-01-02
申请号：US10879501
申请日：2004-06-30
申请人： Vasant Ramchandra Choudhary , Chanchal Samanta , Prabhas Jana
发明人： Vasant Ramchandra Choudhary , Chanchal Samanta , Prabhas Jana
IPC分类号： C01B15/01
CPC分类号： C01B15/01
摘要： The present invention discloses a process for the production of hydrogen peroxide from hydrazine hydrate or hydrazine salt, represented by a general formula: N2H4.nX, wherein, X is H2O, H2SO4, HNO3, HCl, HBr, HI or CH3COOH; n is 0.5, 1 or 2; N is nitrogen; H is hydrogen; S is sulfur; Cl is chlorine; Br is bromine; and I is iodine, by its liquid phase oxidation with oxygen, using a solid catalyst comprising palladium but with or without halogen promoter, in an aqueous reaction medium with or without comprising a mineral acid and/or halide anions, which comprises: i) contacting the solid catalyst with a hydrazine hydrate or hydrazine salt and oxygen containing gas selected from oxygen, air and oxygen enriched air, in aqueous reaction medium at the following reaction conditions: the concentration of hydrazine hydrate or hydrazine salt in the reaction medium above 0.001 mol/dm3, the concentration of mineral acid in the reaction medium in the range from zero mol/dm3 to 10 mol/dm3, the concentration of halide anions added to the reaction medium in the range from zero mmol/dm3 to 100 mmol/dm3, the concentration of the solid catalyst in the reaction medium in the range from 0.01 g/dm3 to 100 g/dm3, the space velocity of the oxygen containing gas in the range from 100 cm3/g catalyst/h to 100,000 cm3/g catalyst/h, the mass ratio of hydrazine hydrate or hydrazine salt to solid catalyst in the range from 0.01 to 100, the temperature below 100° C., the pressure at least 0.95 atm, and the reaction contact time above 0.02 h; and ii) separating the H2O2 from the reaction mixture.

8. 发明授权

US06420596B1 Process for the selective esterification of tertiary alcohol by an acid anhydride using a reusable solid catalyst 失效
标题翻译：使用可重复使用的固体催化剂通过酸酐选择性酯化叔醇的方法
公开(公告)号：US06420596B1
公开(公告)日：2002-07-16
申请号：US09725642
申请日：2000-11-29
申请人： Vasant Ramchandra Choudhary , Kshudiram Mantri , Suman Kumar Jana
发明人： Vasant Ramchandra Choudhary , Kshudiram Mantri , Suman Kumar Jana
IPC分类号： C07C6702
CPC分类号： C07C67/08 , C07C69/003 , C07C69/14 , C07C69/157 , C07C69/78
摘要： This invention provides a process for the selective esterfication of a tertiary alcohol(I) by an acid anhydride(II) to produce corresponding tertiary ester(III) and carboxylic acid(V), using a reusable solid catalyst(IV) comprising one or more halides of indium, gallium, zinc and iron. The process comprises: (i) contacting a mixture of (I) and (II) in the absence or presence of a non aqueous solvent with the fine particles of (IV) in a stirred batch reactor provided with a reflux water condenser at atmospheric pressure at the reaction conditions, such that the mole ratio of (II) to (I) is in the range from about 0.1 to about 10.0; the weight ratio of (IV) to (I+II) is in the range from about 0.005 to about 0.5; the reaction temperature is below about 80° C., and the reaction period is in the range from about 0.1 h to about 50 h; (ii) removing the solid catalyst(IV) from the reaction mixture by filtration; and (iii) reusing the separated solid catalyst for subsequent batch of the process.
摘要翻译：本发明提供一种通过酸酐（II）选择性酯化叔醇（I）以产生相应的叔酯（III）和羧酸（V）的方法，使用包含一种或多种的可重复使用的固体催化剂（IV）铟，镓，锌和铁的卤化物。该方法包括：（i）在不存在或不存在非水溶剂的情况下，将（I）和（II）的混合物与（IV）的细颗粒在设置有回流水冷凝器的搅拌间歇反应器中在大气压下接触在反应条件下使得（II）与（I）的摩尔比在约0.1至约10.0的范围内; （IV）至（I + II）的重量比在约0.005至约0.5的范围内; 反应温度低于约80℃，反应时间为约0.1小时至约50小时; （ii）通过过滤从反应混合物中除去固体催化剂（IV）; 和（iii）将分离的固体催化剂重新用于后续批次的方法。

9. 发明授权

US06180557B2 Supported catalyst useful for Friedel-Crafts reactions and process for the preparation of aralkylated aromatic compounds using the catalyst 失效
标题翻译：用于Friedel-Crafts反应的负载催化剂和使用催化剂制备芳烷基化芳族化合物的方法
公开(公告)号：US06180557B2
公开(公告)日：2001-01-30
申请号：US09209834
申请日：1998-12-11
申请人： Vasant Ramchandra Choudhary , Suman Kumar Jana , B-Phani Kiran
发明人： Vasant Ramchandra Choudhary , Suman Kumar Jana , B-Phani Kiran
IPC分类号： B01J2706
CPC分类号： B01J27/125 , B01J23/08 , B01J27/128 , C07C45/46
摘要： A supported catalyst and a process for the preparation of the catalyst, the catalyst containing mixed metal oxides or halides deposited on porous catalyst carriers or supports, useful for heterogeneously or solid catalyzed Friedel-Crafts reactions such as alkylation, aralkylation, acylation, or aroylation of aromatic compounds in the preparation of fine chemicals. The supported catalyst has high activity for the Friedel-Crafts reactions when the aromatic ring activating groups are present in the aromatic ring to be aralkylated, acylated or aroylated, and also when the ring activating group is absent or when aromatic ring deactivating groups are present in the aromatic ring to aralkylated, acylated or aroylated, so that the reaction temperature is low and/or the time for completing the reaction is short. The catalyst can be separated and used repeatedly for catalytic reactions.
摘要翻译：负载催化剂和催化剂的制备方法，催化剂含有沉积在多孔催化剂载体或载体上的混合金属氧化物或卤化物，可用于非均相或固体催化的Friedel-Crafts反应，例如烷基化，芳烷基化，酰化或芳基化芳香族化合物在精细化学品的制备中。当芳环活性基团存在于待芳烷基化，酰化或酰化的芳环中时，以及当环活化基团不存在或芳环失活基团存在时，负载型催化剂对于Friedel-Crafts反应具有高活性芳环进行芳烷基化，酰化或丙烯酰化，使反应温度低，和/或完成反应的时间短。催化剂可以分离并重复使用用于催化反应。

10. 发明授权

US5744419A Process for the preparation of an improved supported catalyst, containing nickel and cobalt, with or without noble metals, useful for the oxidative conversion of methane, natural gas and biogas to syngas 失效
标题翻译：用于制备含有或不含贵金属的镍和钴的改进的负载催化剂的方法，其用于将甲烷，天然气和沼气氧化转化为合成气
公开(公告)号：US5744419A
公开(公告)日：1998-04-28
申请号：US517213
申请日：1995-08-21
申请人： Vasant Ramchandra Choudhary , Balu Shivaji Uphade , Ajit Singh Mamman , Amarjeet Munshiram Rajput
发明人： Vasant Ramchandra Choudhary , Balu Shivaji Uphade , Ajit Singh Mamman , Amarjeet Munshiram Rajput
IPC分类号： B01J23/755 , B01J23/78 , B01J23/89 , B01J37/02 , C01B3/38 , C01B3/40 , B01J23/40 , B01J23/58 , B01J23/72
CPC分类号： B01J37/024 , B01J23/755 , B01J23/78 , B01J23/8946 , C01B3/386 , C01B3/40 , C01B2203/0233 , C01B2203/0238 , C01B2203/0261 , C01B2203/1017 , C01B2203/1052 , C01B2203/1064 , C01B2203/1082 , C01B2203/1241 , C01B2203/1619 , Y02P20/142 , Y02P20/52
摘要： A supported catalyst is prepared by depositing oxides of nickel and cobalt, with or without noble metals, on a sintered low surface area porous inert support, surface of which is precoated with an oxide of Be, Mg, Ca or a mixture thereof so that a protective layer of the alkaline earth oxide is formed between the oxides of nickel and cobalt, with or without noble metal, and the support and hence direct chemical interactions between the oxides of the group VIII transition metals and the reactive components of support, which leads to the formation of catalytically inactive binary oxide phases are avoided.
摘要翻译：通过在具有或不含有贵金属的镍和钴的氧化物上沉积有烧结的低表面积的多孔惰性载体，其表面用Be，Mg，Ca或其混合物的氧化物预涂布来制备负载型催化剂，使得在具有或不具有贵金属的镍和钴的氧化物之间形成碱土金属氧化物的保护层，以及由第VIII族过渡金属的氧化物和载体的反应性组分之间的载体和因此的直接化学相互作用，这导致避免了催化无活性的二元氧化物相的形成。

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