公开(公告)号：US20110160470A1

公开(公告)日：2011-06-30

申请号：US12974439

申请日：2010-12-21

申请人： William H. Henstock ,  Juliana G. Serafin ,  Albert C. Liu ,  Hwaili Soo ,  Yujun Liu ,  Manuk Colakyan ,  Sagar Petkar

发明人： William H. Henstock ,  Juliana G. Serafin ,  Albert C. Liu ,  Hwaili Soo ,  Yujun Liu ,  Manuk Colakyan ,  Sagar Petkar

IPC分类号： C07D301/10 ,  B01D53/48 ,  B01J8/00 ,  B01D53/02

CPC分类号： C07D301/10 ,  C07D301/32 ,  C07D301/36 ,  Y02P20/582

摘要： A plant and process for producing alkylene oxides to control the production of silver chloride on a high efficiency silver catalyst is disclosed and described. The process involves reacting an alkylene and an organic chloride gas phase promoter with oxygen over the high efficiency silver catalyst. The sulfur concentration in the alkylene oxide reactor feed is controlled to reduce the production of silver chloride which acts as a catalyst poison.

摘要翻译： 公开和描述了一种用于生产烯化氧以控制高效率银催化剂上的氯化银生产的设备和方法。 该方法包括在高效率银催化剂上使亚烷基和有机氯化物气相促进剂与氧反应。 控制环氧烷反应器进料中的硫浓度以减少作为催化剂毒物的氯化银的产生。

公开(公告)号：US20100331555A1

公开(公告)日：2010-12-30

申请号：US12866370

申请日：2009-01-22

申请人： Christian D. Kneupper ,  Perry S. Basile ,  William W. Fan ,  Sascha Noormann

发明人： Christian D. Kneupper ,  Perry S. Basile ,  William W. Fan ,  Sascha Noormann

IPC分类号： C07D301/24 ,  B01D3/14 ,  C07D301/32

CPC分类号： C07D301/12 ,  C07D301/32

摘要： A process and apparatus are disclosed for the purification of epichlorohydrin. The process includes distilling and/or fractionating a feed stream containing epichlorohydrin, dichlorohydrin(s), and one or more other substances, subjecting at least a portion of the liquid phase effluent to a dichlorohydrin dehydrochlorination process for converting residual dichlorohydrin(s) in the liquid phase effluent to epichlorohydrin, and recovering purified epichlorohydrin from the vapor phase effluent in which the distillation/fractionation pressure and/or temperature of step (1) is adjusted to retain at least 5 weight-percent epichlorohydrin in the liquid phase effluent. The apparatus for making purified epichlorohydrin includes a dehydrochlorination apparatus, a first liquid-vapor contacting apparatus, and a second liquid-vapor contacting apparatus connected to the dehydrochlorination apparatus for recycling a distillate to the dehydrochlorination apparatus. Advantages include more efficient recovery of epichlorohydrins and reduced capital investment in recovery equipment.

摘要翻译： 公开了用于纯化表氯醇的方法和装置。 该方法包括蒸馏和/或分馏含有表氯醇，二氯丙醇和一种或多种其它物质的进料流，将至少一部分液相流出物进行二氯丙醇脱氯化氢处理，以将残留的二氯丙醇 液相流出物至表氯醇，并从蒸气相流出物中回收纯化的表氯醇，其中调节步骤（1）的蒸馏/分馏压力和/或温度以在液相流出物中保留至少5重量％的表氯醇。 用于制备纯化的表氯醇的装置包括脱氯化氢装置，第一液 - 蒸气接触装置和连接到脱氯化氢装置的第二液 - 蒸气接触装置，用于将馏出物再循环到脱氯化氢装置。 优点包括更有效地回收表氯醇，减少回收设备的资金投入。

公开(公告)号：US07594979B2

公开(公告)日：2009-09-29

申请号：US10541171

申请日：2004-03-04

申请人： Renate Patrascu ,  Sabrina Astori ,  Meinolf M. Weidenbach

发明人： Renate Patrascu ,  Sabrina Astori ,  Meinolf M. Weidenbach

IPC分类号： B01D3/38 ,  B01D3/42 ,  C07D301/32

CPC分类号： C07D301/32 ,  B01D3/38 ,  B01D3/40 ,  Y10S203/20

摘要： A process of separating a purified propylene oxide from a crude epoxidation product produced, preferably, in an epoxidation reaction of propylene with hydrogen peroxide. The process involves removing bulk water, bulk methanol, and unreacted propylene from the crude epoxidation product and thereafter subjecting the resulting propylene oxide product to extractive distillation with water as an extraction solvent. Under distillation conditions, including a bottoms temperature of greater than about 55° C. and less than about 75° C., an overhead or side-cut distillate stream containing a purified propylene oxide is obtained with low yield loss of propylene oxide to propylene glycols and other glycol heavies. The purified propylene oxide can be further purified in a finishing distillation to obtain propylene oxide meeting commercial grade purity requirements.

摘要翻译： 从粗制环氧化产物中分离纯化的环氧丙烷的方法，优选在丙烯与过氧化氢的环氧化反应中制备。 该方法包括从粗环氧化产物中除去大量水，大量甲醇和未反应的丙烯，然后将所得环氧丙烷产物用水萃取溶剂进行萃取蒸馏。 在蒸馏条件下，包括塔底温度大于约55℃且小于约75℃，得到含有纯化环氧丙烷的塔顶馏分或侧馏分馏分料流，其中丙烯氧化物对丙二醇的低产率损失 和其他二醇重物。 纯化的环氧丙烷可以在精馏蒸馏中进一步纯化，得到符合商业级纯度要求的环氧丙烷。

公开(公告)号：US07544818B2

公开(公告)日：2009-06-09

申请号：US10531868

申请日：2003-10-23

申请人： Peter Bassler ,  Hans-Georg Goebbel ,  Joaquim Henrique Teles ,  Peter Rudolf

发明人： Peter Bassler ,  Hans-Georg Goebbel ,  Joaquim Henrique Teles ,  Peter Rudolf

IPC分类号： C07D301/06 ,  C07D301/12 ,  C07D301/19

CPC分类号： C07D301/12 ,  B01D53/1487 ,  B01D53/1493 ,  B01D2257/702 ,  C07D301/32

摘要： Process for the continuous recirculation of the olefin which has not been reacted in the oxidation of olefins by means of hydroperoxide to give oxiranes and is present in the offgas stream formed during the oxidation, which comprises the steps (i) to (iii) (i) separating the olefin from the offgas stream by absorption in a hydrocarbon, (ii) desorbing the olefin from the hydrocarbon, (iii) recirculating the olefin obtained in step (ii) to the oxidation process.

摘要翻译： 通过氢过氧化物在烯烃氧化中未反应的烯烃的连续再循环以产生环氧乙烷并存在于氧化期间形成的废气流中的方法，其包括步骤（i）至（iii）（i ）通过在烃中的吸收从废气流中分离烯烃，（ii）从烃解链烯烃，（iii）将步骤（ii）中获得的烯烃再循环到氧化过程中。

公开(公告)号：US20080035468A1

公开(公告)日：2008-02-14

申请号：US11570615

申请日：2005-06-21

申请人： Toshio Nakayama ,  Junpei Tsuji ,  Noriaki Oku ,  Koji Shinohara

发明人： Toshio Nakayama ,  Junpei Tsuji ,  Noriaki Oku ,  Koji Shinohara

IPC分类号： C07D301/32

CPC分类号： C07D303/04 ,  C07D301/32

摘要： A method of purifying propylene oxide, which comprises subjecting the propylene oxide containing methyl formate as an impurity to extractive distillation using a hydrocarbon of 7 to 10 carbon atoms as an extractant with an extractive distillation column, adding water to the distillate from the overhead of the extractive distillation column to conduct oil-water separation, recycling the oil layer separated to the extractive distillation column, removing the aqueous layer outside the system thereby to obtain propylene oxide in which a methyl formate concentration is reduced as a bottom liquid of the extractive distillation column.

摘要翻译： 一种净化环氧丙烷的方法，其包括使用含有7〜10个碳原子的烃作为萃取蒸馏塔的含有甲酸甲酯的环氧丙烷作为杂质进行萃取蒸馏，从馏出物的塔顶馏出物向馏出液中加入水 萃取蒸馏塔进行油水分离，将分离的油层再循环到萃取蒸馏塔，除去体系外的水层，得到甲酸甲酯浓度降低的环氧丙烷，作为萃取蒸馏塔的底部液体 。

公开(公告)号：US07285187B2

公开(公告)日：2007-10-23

申请号：US10504548

申请日：2003-02-07

申请人： Noriaki Oku ,  Toshio Nakayama ,  Koji Shinohara

发明人： Noriaki Oku ,  Toshio Nakayama ,  Koji Shinohara

IPC分类号： B01D3/40 ,  B01D3/42 ,  C07D301/32 ,  C07D303/04

CPC分类号： C07D301/32

摘要： A process for purifying propylene oxide characterized by subjecting a liquid reaction mixture containing propylene oxide, and water, hydrocarbons and oxygen-containing organic compounds as impurities obtained by reacting cumene hydroperoxide with propylene to extractive distillation using an extractant of a hydrocarbon having 7 to 20 carbon atoms with an extractive distillation column, and controlling a concentration of propylene glycol in the extractant supplied to the extractive distillation column to 20% by weight or less.

摘要翻译： 一种净化环氧丙烷的方法，其特征在于，使用含有环氧丙烷的液体反应混合物和水，烃和含氧有机化合物作为通过使异丙基氢过氧化氢与丙烯反应获得的杂质，使用具有7至20碳的烃的萃取剂进行萃取蒸馏 将萃取蒸馏塔的萃取剂中丙二醇的浓度控制在20重量％以下。

公开(公告)号：US20060183927A1

公开(公告)日：2006-08-17

申请号：US11056222

申请日：2005-02-11

申请人： Barry Billig ,  James Mann

发明人： Barry Billig ,  James Mann

IPC分类号： C07D301/32

CPC分类号： C07D301/32 ,  B01D3/141 ,  B01D53/0423 ,  B01D2259/40086

摘要： In an ethylene oxide process, the stripping and reabsorption operations, normally carried out in separate vessels, are carried out in a single vessel which is divided by a baffle into separate sections where reabsorption and stripping are carried out.

摘要翻译： 在环氧乙烷方法中，通常在分开的容器中进行的汽提和再吸收操作在单个容器中进行，该容器由挡板分隔成进行再吸收和汽提的分开的部分。

公开(公告)号：US07030254B2

公开(公告)日：2006-04-18

申请号：US10487100

申请日：2002-08-13

申请人： Shigeru Goto ,  Koji Shinohara ,  Masaaki Katao

发明人： Shigeru Goto ,  Koji Shinohara ,  Masaaki Katao

IPC分类号： C07D301/19 ,  C07D301/12

CPC分类号： C07D301/19 ,  C07D301/32 ,  C07D303/04

摘要： A process for producing purified propylene oxide comprising: first to sixth steps below, and using heat of reaction generated in the first and/or second steps as a heat source for rectification in the fifth step and/or a heat source for rectification in the sixth step: first step: a step of obtaining cumene hydroperoxide trough oxidation of cumene, second step: a step of obtaining propylene oxide and cumyl alcohol by reacting cumene hydroperoxide with propylene in the presence of an epoxidation catalyst, third step: a step of separating into a fraction (2) containing crude propylene oxide and a fraction (3) containing crude propylene by subjecting an outlet liquid (1) of the second step to rectification, fourth step: a step of obtaining a fraction (4) containing crude propylene oxide and a fraction (6) containing cumyl alcohol by subjecting the fraction (2) to rectification, fifth step: a step of obtaining a fraction (7) containing purified propylene oxide by subjecting the fraction (4) to rectification, and sixth step: a step of obtaining a fraction (5) containing purified propylene by subjecting the fraction (3) to rectification.

摘要翻译： 一种生产纯化的环氧丙烷的方法，包括：第一至第六步骤，并且使用在第一步骤和/或第二步骤中产生的反应热作为第五步骤中的精馏用热源和/或第六步中的精馏用热源 步骤：第一步：获得枯烯氢过氧化物槽氧化枯烯的步骤;第二步：在环氧化催化剂存在下，使氢过氧化枯烯与丙烯反应得到环氧丙烷和异丙苯的步骤;第三步：分离成 含有粗环氧丙烷的级分（2）和含有粗丙烯的馏分（3），通过使第二步骤的出口液体（1）进行精馏，第四步：获得含有粗环氧丙烷的级分（4）和 通过使馏分（2）进行精馏处理含有异丙苯的级分（6），第五步骤：通过使馏分（4） ）进行精馏，第六步：通过使级分（3）进行精馏，得到含有纯化丙烯的馏分（5）的工序。

公开(公告)号：US20050277778A1

公开(公告)日：2005-12-15

申请号：US10865257

申请日：2004-06-10

申请人： Krishnan Viswanathan ,  Solon Williams

发明人： Krishnan Viswanathan ,  Solon Williams

IPC分类号： C07D301/32

CPC分类号： C07D301/04 ,  C07D301/32

摘要： A method for recovering a CO2 stream free of highly reactive volatile organic compounds from an ethylene oxide production process that employs a carbonate/bicarbonate mixture to separate CO2 and form a carbonate concentrate that is treated in a carbonate flash unit followed by a CO2 stripper, wherein at least one of 1) an additional flash unit is employed on the carbonate concentrate upstream of the CO2 stripper, and 2) a side draw CO2 stream is taken from the CO2 stripper.

摘要翻译： 从采用碳酸盐/碳酸氢盐混合物分离CO 2并形成碳酸酯的环氧乙烷生产方法回收没有高反应性挥发性有机化合物的CO 2流的方法 浓缩物在碳酸盐闪蒸装置中处理，随后是CO 2汽提器，其中1）另外的闪蒸装置中的至少一个用于CO 2上游的碳酸盐浓缩物， SUB>汽提器，和2）从CO 2汽提器取出侧馏分CO 2 2。

公开(公告)号：US06727389B1

公开(公告)日：2004-04-27

申请号：US10417287

申请日：2003-04-16

申请人： Krishnan Viswanathan

发明人： Krishnan Viswanathan

IPC分类号： C07C21304

CPC分类号： C07D301/32

摘要： A method for processing at least one cyclic organo-oxide using a closed loop scrubber/holding tank system that contains at least one amine, and circulating the amine through the closed loop while admitting the cyclic organo-oxide to the closed loop.

摘要翻译： 一种使用含有至少一种胺的闭环洗涤器/保存槽系统来处理至少一种环状有机氧化物的方法，并且在将循环有机氧化物引入闭环的同时使胺循环通过闭环。