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    Reduction of acrylic acid in the production of maleic anhydride
    51.
    发明授权
    Reduction of acrylic acid in the production of maleic anhydride 有权
    在生产马来酸酐时还原丙烯酸

    公开(公告)号：US07619099B2

    公开(公告)日：2009-11-17

    申请号：US11405134

    申请日：2006-04-17

    Applicant: Ashok S. Padia ,  Arie Bortinger ,  Gianluca Mazzoni ,  Tiziana Monti

    Inventor： Ashok S. Padia ,  Arie Bortinger ,  Gianluca Mazzoni ,  Tiziana Monti

    IPC: C07D307/60

    CPC classification number: C07C51/215 ,  C07C57/145

    Abstract: An improved process for the production of maleic anhydride by the catalytic oxidation of n-butane. Maleic anhydride is produced by reacting n-butane gas with oxygen gas or an oxygen-containing gas, in the presence of a vanadium phosphorus oxide catalyst. A trialkyl phosphite or trialkyl phosphate component is continuously added to the gases in an amount of from about 0.5 ppm to about 4 ppm by weight of elemental phosphorus in the trialkyl phosphate or trialkyl phosphite component. Heat is applied to the gases at a temperature of from about 400° C. to about 440° C. while maintaining a maximum temperature of gases present in the reaction of about 480° C. A simultaneous conversion of n-butane to maleic anhydride of about 84% or more and a conversion of n-butane to by-product acrylic acid of about 1.5% or less is achieved.

    Abstract translation: 通过正丁烷的催化氧化制备马来酸酐的改进方法。 马来酸酐通过在氧化钒钒催化剂存在下使正丁烷气体与氧气或含氧气体反应来制备。 亚磷酸三烷基酯或磷酸三烷基酯组分在磷酸三烷基酯或三烷基亚磷酸酯组分中以元素磷重量计约0.5ppm至约4ppm的量连续加入到气体中。 在约400℃至约440℃的温度下对气体施加热量，同时保持反应中存在的气体的最高温度为约480℃。同时将正丁烷转化为马来酸酐 约84％以上，正丁烷转化为副产物丙烯酸的转化率为约1.5％以下。

    CATALYST WITH BIMODAL PORE SIZE DISTRIBUTION AND THE USE THEREOF
    52.
    发明申请
    CATALYST WITH BIMODAL PORE SIZE DISTRIBUTION AND THE USE THEREOF 有权
    催化剂具有二次孔径分布及其用途

    公开(公告)号：US20090198076A1

    公开(公告)日：2009-08-06

    申请号：US12360482

    申请日：2009-01-27

    Applicant: Christian Guckel

    Inventor： Christian Guckel

    IPC: C07D301/04 ,  B01J23/50 ,  B01J23/48 ,  B01J27/20 ,  B01J27/224 ,  B01J21/16 ,  B01J21/12 ,  B01J21/06 ,  B01J27/06 ,  B01J27/02 ,  B01J21/02 ,  B01J23/00 ,  C07B41/00

    CPC classification number: B01J23/688 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1061 ,  B01J35/1066 ,  B01J35/1076 ,  B01J35/109 ,  C07D301/10 ,  C07D303/04

    Abstract: The invention is directed to a catalyst for the epoxidation of an olefin to an olefin oxide, the catalyst comprising a support having at least two pore size distributions, each pore size distribution possessing a different mean pore size and a different pore size of maximum concentration, the catalyst further comprising a catalytically effective amount of silver, a promoting amount of rhenium, and a promoting amount of one or more alkali metals, wherein the at least two pore size distributions are within a pore size range of about 0.01 μm to about 50 μm. The invention is also directed to a process for the oxidation of an olefin to an olefin oxide using the above-described catalyst.

    Abstract translation: 本发明涉及用于将烯烃环氧化成烯烃氧化物的催化剂，该催化剂包括具有至少两个孔径分布的支撑体，每个孔径分布具有不同的平均孔径和最大浓度的不同孔径， 所述催化剂还包含催化有效量的银，促进量的铼和促进量的一种或多种碱金属，其中所述至少两个孔径分布在约0.01μm至约50μm的孔径范围内 。 本发明还涉及使用上述催化剂将烯烃氧化成烯烃氧化物的方法。

    Calcination in an inert gas in the presence of a small concentration of an oxidizing component
    53.
    发明申请
    Calcination in an inert gas in the presence of a small concentration of an oxidizing component 有权
    在惰性气体中在少量氧化组分存在下煅烧

    公开(公告)号：US20060252639A1

    公开(公告)日：2006-11-09

    申请号：US11124646

    申请日：2005-05-09

    Applicant: Serguei Pak ,  Andrzej Rokicki

    Inventor： Serguei Pak ,  Andrzej Rokicki

    IPC: B01J23/04

    CPC classification number: C07D301/10 ,  B01J23/66 ,  B01J23/683 ,  B01J23/688 ,  B01J37/0203 ,  B01J37/08 ,  B01J37/14 ,  Y02P20/52

    Abstract: This invention relates to an improved process for preparing silver catalysts useful for the vapor phase production of ethylene oxide from ethylene and oxygen. An inert support is impregnated with a solution of a catalytically effective amount of a silver containing compound, a promoting amount of an alkali metal containing compound, and a promoting amount of a transition metal containing compound. The impregnated support is calcined by heating at a temperature of from about 200° C. to about 600° C. to convert the silver in the silver containing compound to metallic silver and to decompose and remove substantially all organic materials. The heating is conducted under an atmosphere comprising a combination of an inert gas and from about 10 ppm to about 5% by volume of a gas of an oxygen containing oxidizing component.

    Abstract translation: 本发明涉及一种制备用于从乙烯和氧气气相生产环氧乙烷的银催化剂的改进方法。 用催化有效量的含银化合物，促进量的含碱金属的化合物和促进量的含过渡金属的化合物的溶液浸渍惰性载体。 浸渍的载体通过在约200℃至约600℃的温度下加热煅烧，以将含银化合物中的银转化成金属银，并分解和除去基本上所有的有机材料。 加热在包括惰性气体和约10ppm至约5体积％的含氧氧化组分的气体的组合的气氛下进行。

    Ethylene oxide catalyst
    54.
    发明授权
    Ethylene oxide catalyst 失效
    环氧乙烷催化剂

    公开(公告)号：US5945551A

    公开(公告)日：1999-08-31

    申请号：US160988

    申请日：1998-09-25

    Applicant: Nabil Rizkalla ,  Rita Klein ,  Stephen Bruce Milne

    Inventor： Nabil Rizkalla ,  Rita Klein ,  Stephen Bruce Milne

    IPC: B01J23/66 ,  C07D301/10

    CPC classification number: C07D301/10 ,  B01J23/66

    Abstract: A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of an alkali metal component, a sulfur component, a germanium or tin component, and a fluorine component the catalyst being essentially free of rhenium and transition metal compounds.

    Abstract translation: 提供了用于乙烯氧化成环氧乙烷的银催化剂，其含有由碱金属组分，硫组分，锗或锡组分组成的助催化剂组合物和基本上不含铼和过渡金属化合物的催化剂的氟组分。

    Process for preparing silver and alkali catalyst
    56.
    发明授权
    Process for preparing silver and alkali catalyst 失效
    制备银和碱催化剂的方法

    公开(公告)号：US5444034A

    公开(公告)日：1995-08-22

    申请号：US370550

    申请日：1995-01-09

    Applicant: Nabil Rizkalla

    Inventor： Nabil Rizkalla

    IPC: B01J37/02 ,  B01J21/00 ,  B01J23/00 ,  B01J23/50 ,  B01J23/66 ,  B01J35/10 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08 ,  C07D301/10 ,  C07D303/04 ,  B01J23/04

    CPC classification number: B01J23/50 ,  B01J23/66 ,  B01J37/0203 ,  B01J37/0205 ,  B01J37/086 ,  C07D301/10 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1076

    Abstract: An improved silver catalyst for the oxidation of ethylene with molecular oxygen is made by impregnating a porous support with a silver salt of an acid; subjecting the impregnated support to a multi-stage activation in an atmosphere containing less oxygen than air by heating at a first temperature in the range of 150.degree. to 200.degree. C. for less than an hour, heating at a second temperature in the range of from greater than 200.degree. C. to 300.degree. C. for less than one hour, heating at a third temperature in the range of from greater than 300.degree. C. to 400.degree. C. for less than one hour and finally heating at a fourth temperature in the range of from greater than 400.degree. C. to 500.degree. C.; and post impregnating the support with an alkali metal, preferably cesium, from an anhydrous alcohol solution followed by washing with alcohol solvent and rapid drying to produce a finished catalyst having from 1-6.times.10.sup.-3 gew of the alkali metal per kg of catalyst.

    Abstract translation: 通过用酸的银盐浸渍多孔载体来制备用于用分子氧氧化乙烯的改进的银催化剂; 在150℃至200℃的第一温度下加热至少于1小时的第二温度，在含氧量比空气少的气氛中进行多级活化，在第二温度范围内加热 从大于200℃至300℃不足一小时，在大于300℃至400℃的第三温度下加热少于1小时，最后在第四温度下加热 温度在大于400℃至500℃的范围内。 并用碱金属（优选铯）从无水醇溶液中浸渍载体，然后用醇溶剂洗涤并快速干燥，得到每千克催化剂具有1-6×10 -3 gew碱金属的成品催化剂。

    Two stage butane haleic anhydride process
    57.
    发明授权
    Two stage butane haleic anhydride process 失效
    二级丁烷黑麦酸酐工艺

    公开(公告)号：US5360916A

    公开(公告)日：1994-11-01

    申请号：US152088

    申请日：1993-11-15

    Applicant: Ashok S. Padia ,  Gaylon T. Click

    Inventor： Ashok S. Padia ,  Gaylon T. Click

    IPC: B01J27/198 ,  C07B61/00 ,  C07C51/215 ,  C07D307/60

    CPC classification number: C07C51/215

    Abstract: Butane is oxidized with molecular oxygen in a dilute state by bringing a mixture of vaporized butane and air of controlled butane content into the presence of a contact vanadium-phosphorus-oxygen catalyst in a first oxidation zone under controlled pressure and temperature conditions, cooling the gaseous effluent from the first oxidation zone to a temperature in the range of 50.degree. to 300.degree. C., introducing a controlled amount of butane into the cooled gaseous effluent from the first oxidation zone, introducing said cooled butane-enriched stream into the second oxidation zone, and bringing the thus butane-enriched mixture into contact with a vanadium-phosphorus-oxygen catalyst disposed in the second zone.

    Abstract translation: 在受控的压力和温度条件下，通过使第一氧化区中的受控丁烷含量的蒸发的丁烷和空气的混合物存在于第一氧化区中的接触的钒 - 磷 - 氧催化剂的存在下，丁烷被氧化，冷却气态 从第一氧化区的流出物到50℃至300℃的温度，将受控量的丁烷引入来自第一氧化区的冷却的气态流出物中，将所述冷却的富含丁烷的物流引入第二氧化区 并使如此的丁烷富集的混合物与设置在第二区域中的钒 - 磷 - 氧催化剂接触。

    Phosphorous/vanadium oxidation catalyst
    60.
    发明授权
    Phosphorous/vanadium oxidation catalyst 失效
    磷/钒氧化催化剂

    公开(公告)号：US5158923A

    公开(公告)日：1992-10-27

    申请号：US733827

    申请日：1991-07-22

    Applicant: Bruno J. Barone

    Inventor： Bruno J. Barone

    IPC: B01J27/199 ,  C07C51/215

    CPC classification number: C07C51/215 ,  B01J23/002 ,  B01J27/199 ,  B01J2523/00

    Abstract: An improvement in the oxidation catalyst used for the partial oxidation of n-butane and containing vanadium and phosphorus, zinc and lithium mixed oxides which comprises adding a molybdenum compound modifier in an amount of from about 0.005 to 0.025/1 Mo/V to the catalyst during the digestion of the reduced vanadium compound by concentrated phosphoric acid. The addition of Mo produces a catalyst which is very stable more active system and longer lived than the unmodified catalyst.

    Abstract translation: 用于正丁烷部分氧化并含有钒和磷，锌和锂混合氧化物的氧化催化剂的改进包括向催化剂中加入量为约0.005至0.025 / 1Mo / V的钼化合物改性剂 在通过浓磷酸消化还原的钒化合物的过程中。 Mo的添加产生的催化剂比非改性催化剂非常稳定，活性更强，寿命更长。

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