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26 条记录 (耗时 0.024 秒)

    Process for the separation of methylparaben from wintergreen oil
    1.
    发明授权
    Process for the separation of methylparaben from wintergreen oil 失效
    从冬青油中分离对羟基苯甲酸甲酯的方法

    公开(公告)号：US4408065A

    公开(公告)日：1983-10-04

    申请号：US246547

    申请日：1981-03-23

    申请人： Armand J. deRosset ,  James W. Priegnitz ,  Arthur M. Landis

    发明人： Armand J. deRosset ,  James W. Priegnitz ,  Arthur M. Landis

    IPC分类号： C07C69/88

    CPC分类号： C07C69/88

    摘要： An adsorptive separation process for separating methylparaben from a feed mixture comprising methylparaben and wintergreen oil, which process comprises contacting the feed mixture with an adsorbent comprising a type X or type Y zeolite, selectively adsorbing substantially all of the methylparaben to the substantial exclusion of the wintergreen oil and thereafter recovering high-purity methylparaben. A desorption step may be used to desorb the adsorbed methylparaben. The process is carried out preferably in the liquid phase.

    摘要翻译： 用于从包含对羟基苯甲酸甲酯和冬青油的进料混合物中分离对羟基苯甲酸甲酯的吸附分离方法，该方法包括使进料混合物与包含X型或Y型沸石的吸附剂接触，所述吸附剂选择性吸附基本上所有的对羟基苯甲酸甲酯，基本排除冬青 油，然后回收高纯度对羟基苯甲酸甲酯。 解吸步骤可用于解吸所吸附的对羟基苯甲酸甲酯。 该方法优选在液相中进行。

    Process for the separation of nitrotoluene isomers
    2.
    发明授权
    Process for the separation of nitrotoluene isomers 失效
    硝基甲苯异构体分离方法

    公开(公告)号：US4270013A

    公开(公告)日：1981-05-26

    申请号：US86489

    申请日：1979-10-19

    申请人： James W. Priegnitz ,  Arthur M. Landis

    发明人： James W. Priegnitz ,  Arthur M. Landis

    IPC分类号： C07C201/16 ,  C07C79/10

    CPC分类号： C07C201/16 ,  B01D17/0202

    摘要： An adsorptive separation process for separating ortho or para-nitrotoluene from a feed mixture comprising the isomer to be separated and at least one other isomer of nitrotoluene, or for separating ortho and para-nitrotoluene from a mixture of all three isomers of nitrotoluene, which process comprises contacting the feed mixture with an adsorbent comprising a type X or type Y zeolite, whichever is appropriate, containing at the exchangeable cationic sites the appropriate cations, selectively adsorbing substantially all of the nitrotoluene to be separated to the substantial exclusion of the remaining isomers and thereafter recovering high-purity ortho, para or ortho and para isomers. A desorption step may be used to desorb the adsorbed isomers.

    摘要翻译： 用于从包含待分离异构体和硝基甲苯的至少一种其它异构体的进料混合物中分离邻位或对硝基甲苯的吸附分离方法，或用于从硝基甲苯的所有三种异构体的混合物中分离邻位和对硝基甲苯，该方法 包括使进料混合物与包含X型或Y型沸石的吸附剂接触，所述吸附剂在适当的可交换阳离子位置处含有适当的阳离子，选择性吸附待分离的所有硝基甲苯以基本排除剩余的异构体， 然后回收高纯度的邻位，对位或邻位和对位异构体。 解吸步骤可用于解吸所吸附的异构体。

    Process for removal of oxygenates from a paraffin stream
    3.
    发明授权
    Process for removal of oxygenates from a paraffin stream 有权
    从石蜡流中除去含氧化合物的方法

    公开(公告)号：US07102044B1

    公开(公告)日：2006-09-05

    申请号：US10882887

    申请日：2004-06-30

    申请人： Santi Kulprathipanja ,  James W. Priegnitz ,  Stephen W. Sohn ,  Bryan K. Glover ,  Bipin V. Vora

    发明人： Santi Kulprathipanja ,  James W. Priegnitz ,  Stephen W. Sohn ,  Bryan K. Glover ,  Bipin V. Vora

    IPC分类号： C07C2/64

    CPC分类号： C07C5/333 ,  C07C2/66 ,  C07C7/12 ,  C07C7/13 ,  C07C15/107 ,  C07C9/14 ,  C07C11/02

    摘要： The present invention comprises a process for removal of oxygenates from a paraffin-rich or olefin-rich paraffin stream which comprises passing a feed stream, comprising one or more C10 to C15 feed paraffins or C10 to C15 olefin-rich paraffin stream and one or more oxygenates through an adsorbent bed comprising one or more adsorbents selected from silica gel, activated alumina and sodium x zeolites to remove essentially all of said oxygenates; and recovering said paraffins. A second adsorbent bed may be employed to more thoroughly remove these oxygenates.

    摘要翻译： 本发明包括从富含链烷烃或富烯烃的石蜡流中除去含氧化合物的方法，该方法包括将含有一个或多个C 10的进料流通入C 15 通过吸附床将含有一种或多种选自硅胶，活性氧化铝和吸附剂的吸附剂的烷烃或C 10向富含C 15的富烯烃链烷烃流和一种或多种含氧化合物进料， 钠x沸石以除去基本上所有的含氧化合物; 并回收所述石蜡。 可以使用第二吸附剂床来更彻底地除去这些含氧化合物。

    Process for separating glucose from polysaccharides by selective adsorption
    5.
    发明授权
    Process for separating glucose from polysaccharides by selective adsorption 失效
    通过选择性吸附分离葡萄糖与多糖的方法

    公开(公告)号：US4483980A

    公开(公告)日：1984-11-20

    申请号：US532248

    申请日：1983-09-14

    申请人： Richard W. Neuzil ,  James W. Priegnitz

    发明人： Richard W. Neuzil ,  James W. Priegnitz

    IPC分类号： C07H1/06 ,  C13K3/00

    CPC分类号： C07H1/06 ,  C13K3/00

    摘要： A process for the recovery of glucose from an aqueous mixture of glucose and polysaccharides. The mixture is contacted with an X zeolite containing potassium cations at exchangeable cationic sites and selectively adsorbing glucose in the zeolite. The polysaccharides are removed from the zeolite and the adsorbed glucose recovered by means of a desorbent liquid. Preferred systems for effecting the process are countercurrent and co-current simulating moving beds.

    摘要翻译： 从葡萄糖和多糖的水性混合物中回收葡萄糖的方法。 使混合物与含有可交换阳离子位点的钾阳离子的X沸石接触并选择性吸附沸石中的葡萄糖。 从沸石中除去多糖，并通过解吸液体回收吸附的葡萄糖。 实现该过程的优选系统是逆流和并流模拟移动床。

    Process for separating fatty acids and triglycerides
    7.
    发明授权
    Process for separating fatty acids and triglycerides 失效
    分离脂肪酸和甘油三酸酯的方法

    公开(公告)号：US5179219A

    公开(公告)日：1993-01-12

    申请号：US615106

    申请日：1990-11-19

    申请人： James W. Priegnitz

    发明人： James W. Priegnitz

    IPC分类号： C11B3/10 ,  C11B7/00

    CPC分类号： C11B3/10 ,  C11B7/0025

    摘要： The separation of free fatty acids from triglycerides is performed by an adsorptive chromatographic process in liquid phase with silica gel as the adsorbent. A ketone, having from 3 to 8 carbon atoms, such as 2-heptanone, an ester or an ether can be selected as the desorbent.

    摘要翻译： 游离脂肪酸与甘油三酸酯的分离是通过硅胶作为吸附剂的液相吸附色谱法进行的。 可以选择具有3至8个碳原子的酮，例如2-庚酮，酯或醚，作为解吸剂。

    Separation of citric acid from fermentation broth with a weakly basic anionic exchange resin adsorbent
    8.
    发明授权
    Separation of citric acid from fermentation broth with a weakly basic anionic exchange resin adsorbent 失效
    用弱碱性阴离子交换树脂吸附剂从发酵液中分离柠檬酸

    公开(公告)号：US4851573A

    公开(公告)日：1989-07-25

    申请号：US121830

    申请日：1987-11-16

    申请人： Santi Kulprathipanja ,  Anil R. Oroskar ,  James W. Priegnitz

    发明人： Santi Kulprathipanja ,  Anil R. Oroskar ,  James W. Priegnitz

    IPC分类号： C07C51/47

    CPC分类号： C07C51/47

    摘要： Citric acid is separated from a fermentation broth by using an adsorbent comprising a water-insoluble macroreticular or gel weakly basic anionic exchange resin possessing tertiary amine functional groups or pyridine functional groups, said anionic exchange resin comprising a cross-linked acrylic or styrene resin matrix. Citric acid is desorbed by water or dilute sulfuric acid. The pH of the feed is maintained below the first ionization constant (pKa.sub.1) of citric acid to maintain selectivity.

    摘要翻译： 通过使用包含具有叔胺官能团或吡啶官能团的水不溶性大网络或凝胶弱碱性阴离子交换树脂的吸附剂将柠檬酸与发酵液分离，所述阴离子交换树脂包含交联的丙烯酸或苯乙烯树脂基质。 柠檬酸被水或稀硫酸解吸。 饲料的pH值保持在柠檬酸的第一电离常数（pKa1）以下以保持选择性。

    Process for separating a ketose from an aldose by selective adsorption
    9.
    发明授权
    Process for separating a ketose from an aldose by selective adsorption 失效
    通过选择性吸附从醛糖分离酮糖的方法

    公开(公告)号：US4340724A

    公开(公告)日：1982-07-20

    申请号：US890778

    申请日：1978-03-27

    申请人： Richard W. Neuzil ,  James W. Priegnitz

    发明人： Richard W. Neuzil ,  James W. Priegnitz

    IPC分类号： C07H1/06 ,  C13K3/00

    CPC分类号： C13K3/00 ,  C07H1/06

    摘要： A process for separating a ketose from a feed mixture comprising a ketose and an aldose which process comprises contacting the mixture with an adsorbent comprising a Y or X zeolite containing one or more selected cations at the exchangeable cationic sites thereby selectively adsorbing a ketose from the feed mixture and thereafter recovering the ketose. Preferably the ketose will be recovered by desorption from the adsorbent with a desorbent material.

    摘要翻译： 一种从包含酮糖和醛糖的进料混合物中分离酮糖的方法，该方法包括使混合物与包含在可交换的阳离子位点上含有一个或多个选定阳离子的Y或X沸石的吸附剂接触，从而从进料中选择性吸附酮糖 混合物，然后回收酮糖酮。 优选地，通过用解吸剂材料从吸附剂解吸来回收酮糖。