Catalyst composition for preparing hydroxylamine
    1.
    发明授权
    Catalyst composition for preparing hydroxylamine 有权
    用于制备羟胺的催化剂组合物

    公开(公告)号:US07622420B1

    公开(公告)日:2009-11-24

    申请号:US12454962

    申请日:2009-05-27

    摘要: This invention provides a catalyst composition for preparing hydroxylamine, which comprises palladium, a platinum compound, a germanium compound and a carrier, wherein a halogen concentration of the composition is no more than 10 ppm. The catalyst composition is prevented from poisoning by halogens, and therefore the catalyst composition has high selectivity and catalytic activity. Further, the weight ratio of palladium and platinum in the catalyst composition ranges from 100:1 to 1000:1, such that the catalyst composition can be used to solve the commonly observed problem, i.e., decreased selectivity due to the excessive amount of platinum.

    摘要翻译: 本发明提供一种用于制备羟胺的催化剂组合物,其包含钯,铂化合物,锗化合物和载体,其中组合物的卤素浓度不超过10ppm。 催化剂组合物不会被卤素中毒,因此催化剂组合物具有高选择性和催化活性。 此外,催化剂组合物中钯和铂的重量比为100:1-1000:1,使得催化剂组合物可用于解决普遍观察到的问题,即由于铂的过量引起的选择性降低。

    Method for preparing amide
    2.
    发明授权
    Method for preparing amide 有权
    酰胺的制备方法

    公开(公告)号:US08524895B2

    公开(公告)日:2013-09-03

    申请号:US12501699

    申请日:2009-07-13

    IPC分类号: C07D201/04 C07D223/10

    CPC分类号: C07D201/04 C07D223/10

    摘要: The present invention provides a method for preparing amides, in which an amino acid ionic liquid is used as both a reaction medium and a catalyst to catalyze Beckman rearrangement of a ketoxime, so as to produce an amide. In the method, the rearrangement is conducted by catalyzing a ketoxime with an amino acid ionic liquid having the asymmetric property at a moderate reaction temperature during a short reaction time, so as to produce an amide without adding other catalysts such as concentrate sulfuric acid. The method has advantages such as avoiding corrosion in equipments with pipelines, the high conversion rate of ketoximes and the high selectivity of amides.

    摘要翻译: 本发明提供了一种制备酰胺的方法,其中使用氨基酸离子液体作为反应介质和催化贝克曼重排酮肟的催化剂,以产生酰胺。 在该方法中,通过在短的反应时间内在适度的反应温度下用具有不对称性质的氨基酸离子液体催化酮肟进行重排,从而在不加入其它催化剂如浓硫酸的情况下生成酰胺。 该方法具有避免管道设备腐蚀,酮肟转化率高,酰胺选择性高等优点。

    TITANIUM-SILICALITE MOLECULAR SIEVE, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE
    3.
    发明申请
    TITANIUM-SILICALITE MOLECULAR SIEVE, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE 有权
    钛硅酸盐分子筛,其制备方法和使用分子筛制备环己酮氧化物的方法

    公开(公告)号:US20120277468A1

    公开(公告)日:2012-11-01

    申请号:US13345089

    申请日:2012-01-06

    IPC分类号: B01J21/06 C07C249/04

    摘要: The present invention provides a titanium-silicalite molecular sieve and a method for preparing the same. The method includes the steps of preparing a mixture of a titanium source, a silicon source, a transition metal source, a template agent and water; heating the mixture to form a gel mixture; heating the gel mixture in a water bath; and calcining the gel mixture after the gel mixture in the water bath to form the titanium-silicalite molecular sieve. The present invention further provides a method for preparing cyclohexanone oxime by using the titanium-silicalite molecular sieve as the catalyst which results in high conversion rate, high selectivity and high usage efficiency of hydrogen peroxide.

    摘要翻译: 本发明提供钛 - 硅沸石分子筛及其制备方法。 该方法包括制备钛源,硅源,过渡金属源,模板剂和水的混合物的步骤; 加热混合物以形成凝胶混合物; 在水浴中加热凝胶混合物; 并在凝胶混合物中在水浴中煅烧凝胶混合物以形成钛 - 硅沸石分子筛。 本发明还提供了通过使用钛 - 硅沸石分子筛作为催化剂制备环己酮肟的方法,其导致过氧化氢的高转化率,高选择性和高使用效率。

    Titanium-silicalite molecular sieve, method for preparing the same and method for preparing cyclohexanone oxime using the molecular sieve
    4.
    发明授权
    Titanium-silicalite molecular sieve, method for preparing the same and method for preparing cyclohexanone oxime using the molecular sieve 有权
    钛 - 硅沸石分子筛,其制备方法和使用分子筛制备环己酮肟的方法

    公开(公告)号:US09434683B2

    公开(公告)日:2016-09-06

    申请号:US13350045

    申请日:2012-01-13

    摘要: The present invention provides a titanium-silicalite molecular sieve and a method for preparing the same. The method includes the steps of preparing a mixture of a titanium source, a silicon source, a metal source selected from IIA to IVA elements and a template agent; heating the mixture to form a gel mixture; heating the gel mixture in a water bath; and calcining the gel mixture after the gel mixture in the water bath to form the titanium-silicalite molecular sieve. The present invention further provides a method for preparing cyclohexanone oxime by using the titanium-silicalite molecular sieve as the catalyst which results in high conversion rate, high selectivity and high usage efficiency of hydrogen peroxide.

    摘要翻译: 本发明提供钛 - 硅沸石分子筛及其制备方法。 该方法包括制备钛源,硅源,选自IIA至IVA元素的金属源和模板剂的混合物的步骤; 加热混合物以形成凝胶混合物; 在水浴中加热凝胶混合物; 并在凝胶混合物中在水浴中煅烧凝胶混合物以形成钛 - 硅沸石分子筛。 本发明还提供了通过使用钛 - 硅沸石分子筛作为催化剂制备环己酮肟的方法,其导致过氧化氢的高转化率,高选择性和高使用效率。

    Method for preparing titanium-silicalite molecular sieve and method for preparing cyclohexanone oxime using the molecular sieve
    5.
    发明授权
    Method for preparing titanium-silicalite molecular sieve and method for preparing cyclohexanone oxime using the molecular sieve 有权
    制备钛 - 硅沸石分子筛的方法及使用分子筛制备环己酮肟的方法

    公开(公告)号:US08753998B2

    公开(公告)日:2014-06-17

    申请号:US13344995

    申请日:2012-01-06

    IPC分类号: B01J21/06 C07C249/04

    摘要: The present invention provides a method for preparing a titanium-silicalite molecular sieve, and a method for preparing cyclohexanone oxime using the titanium-silicalite molecular sieve. The method for preparing a titanium-silicalite molecular sieve includes the steps of preparing a mixture of a titanium source, a silicon source and a template agent, wherein the titanium source has a structure of formula (I); heating the mixture to form a gel mixture; mixing the gel mixture with water; heating the gel mixture mixed with the water in a water bath; and calcining the gel mixture mixed with the water. The method using the titanium-silicalite molecular sieve for preparing cyclohexanone oxime results in high conversion rate and high selectivity.

    摘要翻译: 本发明提供一种钛 - 硅沸石分子筛的制备方法,以及使用钛 - 硅沸石分子筛制备环己酮肟的方法。 制备钛 - 硅沸石分子筛的方法包括制备钛源,硅源和模板剂的混合物的步骤,其中钛源具有式(I)的结构; 加热混合物以形成凝胶混合物; 将凝胶混合物与水混合; 在水浴中加热与水混合的凝胶混合物; 并煅烧与水混合的凝胶混合物。 使用钛硅沸石分子筛制备环己酮肟的方法导致高转化率和高选择性。

    METHOD FOR PREPARING TITANIUM-SILICALITE MOLECULAR SIEVE AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE
    6.
    发明申请
    METHOD FOR PREPARING TITANIUM-SILICALITE MOLECULAR SIEVE AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE 有权
    制备钛 - 硅酸盐分子筛的方法及使用分子筛制备环己烷氧化物的方法

    公开(公告)号:US20120271066A1

    公开(公告)日:2012-10-25

    申请号:US13344995

    申请日:2012-01-06

    IPC分类号: B01J21/06 C07C249/04

    摘要: The present invention provides a method for preparing a titanium-silicalite molecular sieve, and a method for preparing cyclohexanone oxime using the titanium-silicalite molecular sieve. The method for preparing a titanium-silicalite molecular sieve includes the steps of preparing a mixture of a titanium source, a silicon source and a template agent, wherein the titanium source has a structure of formula (I); heating the mixture to form a gel mixture; mixing the gel mixture with water; heating the gel mixture mixed with the water in a water bathe; and calcining the gel mixture mixed with the water. The method using the titanium-silicalite molecular sieve for preparing cyclohexanone oxime results in high conversion rate and high selectivity.

    摘要翻译: 本发明提供一种钛 - 硅沸石分子筛的制备方法,以及使用钛 - 硅沸石分子筛制备环己酮肟的方法。 制备钛 - 硅沸石分子筛的方法包括制备钛源,硅源和模板剂的混合物的步骤,其中钛源具有式(I)的结构; 加热混合物以形成凝胶混合物; 将凝胶混合物与水混合; 在水浴中加热与水混合的凝胶混合物; 并煅烧与水混合的凝胶混合物。 使用钛硅沸石分子筛制备环己酮肟的方法导致高转化率和高选择性。

    Method for preparing hydroxylamine
    7.
    发明授权
    Method for preparing hydroxylamine 有权
    制备羟胺的方法

    公开(公告)号:US07417168B2

    公开(公告)日:2008-08-26

    申请号:US11732837

    申请日:2007-04-05

    IPC分类号: C07C239/08

    摘要: A method for preparing hydroxylamine is provided that includes the steps of (i) pretreating an acidic buffer solution; and (ii) reducing nitrate ions in the acidic buffer solution with hydrogen to give hydroxylamine in the presence of catalysts, wherein the pretreatment is performed by adding a precipitant represented by formula (I) to the acidic buffer solution, [(A)aM(CN)6.xH2O]  (I) allowing the metal impurities in the acidic buffer solution to react with the precipitant to form metal complex, and then to remove the metal complex. The metal complex is formed and separated by pretreating the acidic buffer solution with a specific precipitant without adjusting pH and changing the composition of the acidic buffer solution prior to hydroxylamine synthesis, thus enhancing the selectivity of the hydroxylamine production.

    摘要翻译: 提供了制备羟胺的方法,其包括以下步骤:(i)预处理酸性缓冲溶液; (ii)在催化剂存在下用氢还原酸性缓冲溶液中的硝酸根离子,得到羟胺,其中预处理是通过将由式(I)表示的沉淀剂加入到酸性缓冲溶液中, 公式描述=“在线公式”end =“lead”?> [(A)aM(CN)6 .XH (I)<? -line-formula description =“In-line Formulas”end =“tail”?>使酸性缓冲溶液中的金属杂质与沉淀剂反应形成金属络合物,然后除去金属络合物。 通过用特定沉淀剂预处理酸性缓冲溶液而不调节pH并在羟胺合成之前改变酸性缓冲溶液的组成,形成和分离金属络合物,从而提高羟胺生产的选择性。

    Method for preparing hydroxylamine
    8.
    发明申请
    Method for preparing hydroxylamine 有权
    制备羟胺的方法

    公开(公告)号:US20080015388A1

    公开(公告)日:2008-01-17

    申请号:US11732837

    申请日:2007-04-05

    IPC分类号: C07C239/08

    摘要: A method for preparing hydroxylamine is provided that includes the steps of (i) pretreating an acidic buffer solution; and (ii) reducing nitrate ions in the acidic buffer solution with hydrogen to give hydroxylamine in the presence of catalysts, wherein the pretreatment is performed by adding a precipitant represented by formula (I) to the acidic buffer solution, [(A)aM(CN)6.xH2O]  (I) allowing the metal impurities in the acidic buffer solution to react with the precipitant to form metal complex, and then to remove the metal complex. The metal complex is formed and separated by pretreating the acidic buffer solution with a specific precipitant without adjusting pH and changing the composition of the acidic buffer solution prior to hydroxylamine synthesis, thus enhancing the selectivity of the hydroxylamine production.

    摘要翻译: 提供了制备羟胺的方法,其包括以下步骤:(i)预处理酸性缓冲溶液; (ii)在催化剂存在下用氢还原酸性缓冲溶液中的硝酸根离子,得到羟胺,其中预处理是通过将由式(I)表示的沉淀剂加入到酸性缓冲溶液中, 公式描述=“在线公式”end =“lead”?> [(A)aM(CN)6 .XH (I)<? -line-formula description =“In-line Formulas”end =“tail”?>使酸性缓冲溶液中的金属杂质与沉淀剂反应形成金属络合物,然后除去金属络合物。 通过用特定沉淀剂预处理酸性缓冲溶液而不调节pH并在羟胺合成之前改变酸性缓冲溶液的组成,形成和分离金属络合物,从而提高羟胺生产的选择性。

    Method for preparing titanium-silicalite molecular sieve and method for preparing cyclohexanone oxime using titanium-silicalite molecular sieve
    9.
    发明授权
    Method for preparing titanium-silicalite molecular sieve and method for preparing cyclohexanone oxime using titanium-silicalite molecular sieve 有权
    钛硅分子筛制备方法及钛 - 硅质分子筛制备环己酮肟的方法

    公开(公告)号:US08540956B2

    公开(公告)日:2013-09-24

    申请号:US12748932

    申请日:2010-03-29

    IPC分类号: C01B39/02 C01B39/04

    摘要: The present invention provides a method for preparing large particles of titanium-silicalite molecular sieves. The method of the present invention includes the steps of preparing a dispersion solution of a primary crystalline molecular sieve; forming an aggregated particle solution by adding a flocculating agent and a coagulating agent into the dispersion solution; mixing the aggregated particle solution with a synthesis gel to form a mixture; and heat-treating the mixture. The average diameter of the titanium-silicalite molecular sieves in the present invention is more than 5 μm. In the preparation of cyclohexanone oxime using the molecular sieve of the present invention as the catalyst, the selectivity and conversion rate of cyclohexanone oxime are high, the usage of hydrogen peroxide is enhanced, and the catalyst is easy to be recovered.

    摘要翻译: 本发明提供一种制备钛 - 硅沸石分子筛大颗粒的​​方法。 本发明的方法包括制备一级结晶分子筛的分散液的步骤; 通过向分散液中添加絮凝剂和凝结剂形成凝集颗粒溶液; 将聚集的颗粒溶液与合成凝胶混合以形成混合物; 并对该混合物进行热处理。 本发明中钛 - 硅沸石分子筛的平均直径大于5μm。 在使用本发明的分子筛作为催化剂的环己酮肟的制备中,环己酮肟的选择性和转化率高,过氧化氢的用途增加,催化剂容易回收。

    METHOD FOR PREPARING AMIDE
    10.
    发明申请
    METHOD FOR PREPARING AMIDE 有权
    制备酰胺的方法

    公开(公告)号:US20100063274A1

    公开(公告)日:2010-03-11

    申请号:US12501699

    申请日:2009-07-13

    IPC分类号: C07D201/04 C07D223/10

    CPC分类号: C07D201/04 C07D223/10

    摘要: The present invention provides a method for preparing amides, in which an amino acid ionic liquid is used as both a reaction medium and a catalyst to catalyze Beckman rearrangement of a ketoxime, so as to produce an amide. In the method, the rearrangement is conducted by catalyzing a ketoxime with an amino acid ionic liquid having the asymmetric property at a moderate reaction temperature during a short reaction time, so as to produce an amide without adding other catalysts such as concentrate sulfuric acid. The method has advantages such as avoiding corrosion in equipments with pipelines, the high conversion rate of ketoximes and the high selectivity of amides.

    摘要翻译: 本发明提供了一种制备酰胺的方法,其中使用氨基酸离子液体作为反应介质和催化贝克曼重排酮肟的催化剂,以产生酰胺。 在该方法中,通过在短的反应时间内在适度的反应温度下用具有不对称性质的氨基酸离子液体催化酮肟进行重排,从而在不加入其它催化剂如浓硫酸的情况下生成酰胺。 该方法具有避免管道设备腐蚀,酮肟转化率高,酰胺选择性高等优点。