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。

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。