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7 条记录 (耗时 0.056 秒)

    Method for synthesis of hypohalous acid
    1.
    发明授权
    Method for synthesis of hypohalous acid 失效
    合成次卤酸的方法

    公开(公告)号：US6048513A

    公开(公告)日：2000-04-11

    申请号：US728811

    申请日：1997-01-10

    申请人： George J. Quarderer ,  David L. Trent ,  Erik J. Stewart ,  Danil Tirtowidjojo ,  Anil J. Mehta ,  Cheryl A. Tirtowidjojo

    发明人： George J. Quarderer ,  David L. Trent ,  Erik J. Stewart ,  Danil Tirtowidjojo ,  Anil J. Mehta ,  Cheryl A. Tirtowidjojo

    IPC分类号： B01J10/00 ,  B01J19/18 ,  C01B11/04 ,  C01B11/20 ,  C01B11/22 ,  C01B11/24

    CPC分类号： C01B11/04 ,  B01J19/0066 ,  B01J19/0073 ,  B01J19/1806 ,  B01J2219/00103 ,  Y02P20/149

    摘要： This invention is a method for forming hypohalous acid in a mass transfer device. The method comprises: (1) feeding into the device a stream of caustic solution comprising at least one alkali or alkaline earth metal of a hydroxide, oxide, hypohalite, bicarbonate, or carbonate; (2) feeding a stream comprising halogen gas into the device; (3) reacting at least some of the halogen gas with the caustic solution to form a solution containing hypohalous acid; (4) desorbing the hypohalous acid from the solution and into the stream of halogen gas; and (5) removing the stream of halogen gas from the device. In this method, the mass transfer device comprises a porous rotor which is permeable to the streams, and is rotated about an axis such that the streams flow through the rotor and the stream of caustic solution flows radially outward from the axis.

    摘要翻译： 本发明是在传质装置中形成次卤酸的方法。 该方法包括：（1）向装置中加入包含至少一种氢氧化物，氧化物，次卤酸盐，碳酸氢盐或碳酸盐的碱金属或碱土金属的苛性碱溶液; （2）将包含卤素气体的流供给到所述装置中; （3）使至少一些卤素气体与苛性碱溶液反应，形成含有次卤酸的溶液; （4）从溶液中将次卤酸解吸到卤素气流中; 和（5）从装置中除去卤素气流。 在该方法中，传质装置包括可流动的多孔转子，并且绕轴旋转，使得流流过转子，并且苛性碱流从轴线径向向外流动。

    Process for preparing alkylene oxides
    2.
    发明授权
    Process for preparing alkylene oxides 失效
    烯化氧的制备方法

    公开(公告)号：US5532389A

    公开(公告)日：1996-07-02

    申请号：US303852

    申请日：1994-09-09

    申请人： David L. Trent ,  George J. Quarderer ,  Kim G. Bargeron ,  Douglas C. Greminger ,  David J. Koranek ,  Erik J. Stewart ,  Curtis N. Swisher ,  Cheryl A. Tirtowidjojo ,  Danil Tirtowidjojo

    发明人： David L. Trent ,  George J. Quarderer ,  Kim G. Bargeron ,  Douglas C. Greminger ,  David J. Koranek ,  Erik J. Stewart ,  Curtis N. Swisher ,  Cheryl A. Tirtowidjojo ,  Danil Tirtowidjojo

    IPC分类号： C01B11/04 ,  C01B11/06 ,  C07C29/66 ,  C07C33/42 ,  C07D301/26 ,  C07D303/04 ,  C07D303/08

    CPC分类号： C01B11/04 ,  C01B11/064 ,  C07C29/66 ,  C07D301/26 ,  B01F13/0059

    摘要： A process of preparing alkylene oxides comprises steps of: (1) optionally forming a hypochlorite solution; (2) contacting chlorine with a solution of a hypochlorite below about 60.degree. C., and a pH of less than about 5.5, with sufficient micromixing to achieve a product hypochlorous acid in a yield of at least about 80 percent; (3) separating at least a portion the hypochlorous acid from an aqueous metal chloride solution wherein the solution is sprayed as droplets; (4) distilling the remaining liquid phase; (5) absorbing the hypochlorous acid and dichlorine monoxide in low-chlorides water to produce a low-chlorides aqueous hypochlorous acid solution; (6) contacting the low-chlorides aqueous hypochlorous acid solution with an olefin in a continuous process to form a olefin chlorohydrin; (7) optionally contacting the olefin chlorohydrin with a base to form a alkylene oxide and a salt solution; and (8) optionally separating the alkylene oxide from the salt solution. (9) optionally removing chlorates from the chloride brine by contacting the chlorates with acid to convert the chlorates to chlorine; and (10) optionally recycling the chlorine. The process yields particularly high yields of the alkylene oxide without substantial production of by-products.

    摘要翻译： 制备环氧烷的方法包括以下步骤：（1）任选地形成次氯酸盐溶液; （2）使氯与低于约60℃的次氯酸盐溶液和小于约5.5的pH接触，以足够的微量混合，以达到产率为至少约80％的产物次氯酸; （3）将次氯酸与金属氯化物水溶液的至少一部分分离，其中溶液以液滴的形式喷雾; （4）蒸馏剩余的液相; （5）在低氯水中吸收次氯酸和二氯一氧化物，生成低氯酸次氯酸溶液; （6）使连续过程中的低氯酸次氯酸溶液与烯烃接触以形成烯烃氯代醇; （7）任选地将烯烃氯醇与碱接触以形成环氧烷和盐溶液; 和（8）任选地从所述盐溶液中分离所述环氧烷。 （9）通过使氯酸盐与酸接触以将氯酸盐转化为氯，任选地从氯化物盐水中除去氯酸盐; 和（10）任选地再循环氯。 该方法产生特别高的环氧烷产率，而没有大量生产副产物。

    Method for producing epoxides
    4.
    发明授权
    Method for producing epoxides 失效
    环氧化物生产方法

    公开(公告)号：US5486627A

    公开(公告)日：1996-01-23

    申请号：US348639

    申请日：1994-12-02

    申请人： George J. Quarderer, Jr. ,  Curtis N. Swisher ,  David L. Trent

    发明人： George J. Quarderer, Jr. ,  Curtis N. Swisher ,  David L. Trent

    IPC分类号： C07D301/26 ,  C07D303/04 ,  C07D303/08 ,  C07D303/14

    CPC分类号： C07D301/26

    摘要： Described herein is a method for producing epoxides which is continuous, inhibits formation of chlorinated byproducts, and eliminates or substantially reduces waste water discharge. The method includes:(a) forming a low chlorides aqueous hypochlorous acid solution;(b) contacting the low chlorides aqueous hypochlorous acid solution with at least one unsaturated organic compound to form an aqueous organic product comprising at least olefin chlorohydrin;(c) contacting at least the olefin chlorohydrin with an aqueous alkali metal hydroxide to form an aqueous salt solution product containing at least epoxide; and(d) isolating the epoxide from the aqueous salt solution;wherein water is recovered from the product of at least Step (b) and recycled into Step (a) for use in forming the low chlorides aqueous hypochlorous acid solution. In this process, not only is the water internally recycled after Step (b), but a concentrated brine solution is generated in both Steps (a) and (d) which is useful in other processes such as electrochemical production of chlorine and caustic. The chlorine and caustic, in turn, may then be recycled back to the method of this invention.

    摘要翻译： 本文描述了一种连续生产环氧化物的方法，抑制氯化副产物的形成，并且消除或显着减少废水排放。 该方法包括：（a）形成低氯化物次氯酸水溶液; （b）将低氯化物次氯酸水溶液与至少一种不饱和有机化合物接触以形成至少含有氯代醇的含水有机产物; （c）至少使烯丙基氯醇与碱金属氢氧化物水溶液接触以形成至少含有环氧化物的盐水溶液产物; 和（d）从盐水溶液中分离环氧化物; 其中从至少步骤（b）的产物中回收水并再循环到步骤（a）中，以用于形成低氯酸盐次氯酸水溶液。 在这个过程中，不仅在步骤（b）之后内部循环的水，而且在步骤（a）和（d）中产生浓缩的盐水溶液，其可用于其它方法如氯和苛性碱的电化学生产。 然后将氯和苛性碱又可循环回本发明的方法。

    Reclamation of a titanosilicate, and reconstitution of an active oxidation catalyst
    5.
    发明授权
    Reclamation of a titanosilicate, and reconstitution of an active oxidation catalyst 有权
    硅酸铝的回收和活性氧化催化剂的重构

    公开(公告)号：US07629287B2

    公开(公告)日：2009-12-08

    申请号：US11794416

    申请日：2005-12-09

    申请人： Susan J. Siler ,  Joseph D. Henry ,  David L. Trent ,  Larry N. Ito ,  David G. Barton

    发明人： Susan J. Siler ,  Joseph D. Henry ,  David L. Trent ,  Larry N. Ito ,  David G. Barton

    IPC分类号： B01J29/04 ,  B01J38/04 ,  B01J21/06 ,  B01J38/60

    CPC分类号： B01J29/89 ,  B01J29/90 ,  B01J38/485 ,  B01J38/60 ,  B01J38/68

    摘要： A method of reclaiming a titanosilicate from a deactivated or spent oxidation catalyst containing a titanosilicate having deposited thereon one or more catalytic metals, such as gold, and optionally, one or more promoter metals, the method involving treating the deactivated catalyst with an oxidant; contacting the oxidant-treated catalyst with acid, preferably aqua regia; washing the titanosilicate to remove residual acid; and optionally drying and/or calcining. A method of reconstituting an active oxidation catalyst from a spent or deactivated oxidation catalyst, the method involving reclaiming the titanosilicate as noted above, and then depositing one or more catalytic metals and, optionally, one or more promoter metals onto the reclaimed titanosilicate.

    摘要翻译： 一种从含有沉积有一种或多种催化金属如金和任选的一种或多种促进剂金属的钛硅酸盐的失活或废氧化催化剂回收钛硅酸盐的方法，所述方法包括用氧化剂处理失活的催化剂; 使氧化剂处理的催化剂与酸，优选王水接触; 洗涤钛硅酸盐以除去残留的酸; 并任选地干燥和/或煅烧。 一种从废或失活的氧化催化剂重构活性氧化催化剂的方法，所述方法包括如上所述回收钛硅酸盐，然后将一种或多种催化金属和任选的一种或多种助催化剂金属沉积到回收的钛硅酸盐上。