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1. 发明申请

US20060284723A1 Temperature measuring device 有权
公开(公告)号：US20060284723A1
公开(公告)日：2006-12-21
申请号：US11453117
申请日：2006-06-14
申请人： Kyoung Ha , Boo Woo , Jun Ko , Seong Kang , Seok Choi , Sang Lee , Young Kim
发明人： Kyoung Ha , Boo Woo , Jun Ko , Seong Kang , Seok Choi , Sang Lee , Young Kim
IPC分类号： H01C3/04
CPC分类号： G01K3/14 , G01K1/14 , G01K7/02
摘要： Disclosed is a temperature measuring device. The temperature measuring device includes: a thermo-well tube; and a cable or wire type temperature measuring means which is installed in a thermo-well tube, wherein temperature measuring means has temperature detecting sensors disposed at an intermediate portion thereof, and the temperature detecting sensors can be moved axially in the thermo-well tube by applying tension to both ends of the cable or wire type temperature measuring means. The present invention also provides a reaction tube in which the temperature measuring device is disposed axially, and a reactor including at least one temperature measuring device or reaction tube as described above.

2. 发明申请

US20060025629A1 Method for producing (meth) acrylic acid 有权
公开(公告)号：US20060025629A1
公开(公告)日：2006-02-02
申请号：US11192223
申请日：2005-07-28
申请人： Seong Kang , Seok Choi , Kyoung Ha , Jun Ko , Young Kim , Boo Woo , Min Park
发明人： Seong Kang , Seok Choi , Kyoung Ha , Jun Ko , Young Kim , Boo Woo , Min Park
IPC分类号： C07C51/42
CPC分类号： C07C51/44 , C07C51/48 , C07C57/04
摘要： Disclosed is a method for producing (meth)acrylic acid comprising a process of recovering (meth)acrylic acid as aqueous (meth)acrylic acid solution from a (meth)acrylic acid-containing gas mixture produced by the catalytic gas phase oxidation of at least one reactant selected from the group consisting of propane, propylene, isobutylene and (meth)acrolein, wherein the recovering process comprises the steps of: (1) feeding the (meth)acrylic acid-containing gas mixture into a quenching tower and condensing it in the quenching tower so as to recover an aqueous (meth)acrylic acid solution from the bottom of the quenching tower, in which some of the recovered aqueous (meth)acrylic acid solution is recycled to the upper portion of the quenching tower so as to condense the (meth)acrylic acid-containing gas mixture; (2) passing the uncondensed part of the (meth)acrylic acid-containing gas mixture from the top of the quenching tower to a distillation tower; and (3) heating the bottom of the distillation tower to separate water-containing impurity components from the uncondensed (meth)acrylic acid-containing gas mixture and to discharge them from the top of the distillation tower. A system used for carrying out the method is also disclosed.

3. 发明申请

US20060211884A1 Method of producing unsaturated acid from olefin 有权
标题翻译：从烯烃生产不饱和酸的方法
公开(公告)号：US20060211884A1
公开(公告)日：2006-09-21
申请号：US11378438
申请日：2006-03-17
申请人： Boo Woo , Jun Ko , Kyoung Ha , Seong Kang , Seok Choi , Young Kim
发明人： Boo Woo , Jun Ko , Kyoung Ha , Seong Kang , Seok Choi , Young Kim
IPC分类号： C07C51/16 , C07C51/235
CPC分类号： B01J8/067 , B01J2208/00212 , B01J2208/025 , C07C51/215 , C07C51/252 , C07C57/04
摘要： Disclosed is a shell-and-tube heat exchanger type reactor that can be used for a process of producing unsaturated acids from olefins via fixed-bed catalytic partial oxidation, which comprises at least one reaction tube, each including at least one first-step catalyst layer, in which olefins are oxidized by a first-step catalyst to mainly produce unsaturated aldehydes, and at least two second-step catalyst layers, in which the unsaturated aldehydes are oxidized by a second-step catalyst to produce unsaturated acids, wherein a first catalyst layer of the second-step catalyst layers, disposed right adjacent to the first-step catalyst layer, has an activity corresponding to 5˜30% of the activity of the catalyst layer having a highest activity among the second-step catalyst layers. A method of producing unsaturated acids from olefins by using the reactor is also disclosed.
摘要翻译：公开了一种壳管式热交换器型反应器，其可用于通过固定床催化部分氧化由烯烃生产不饱和酸的方法，其包括至少一个反应管，每个反应管包含至少一个第一步催化剂层，其中烯烃被第一步催化剂氧化以主要产生不饱和醛，以及至少两个第二步催化剂层，其中不饱和醛被第二步催化剂氧化以产生不饱和酸，其中第一与第一级催化剂层相邻设置的第二级催化剂层的催化剂层具有相当于第二级催化剂层中活性最高的催化剂层的活性的5〜30％的活性。还公开了通过使用反应器由烯烃生产不饱和酸的方法。

4. 发明申请

US20050245763A1 Method for recovering acrylic acid 有权
标题翻译：回收丙烯酸的方法
公开(公告)号：US20050245763A1
公开(公告)日：2005-11-03
申请号：US11116367
申请日：2005-04-28
申请人： Seong Kang , Seok Choi , Kyoung Ha , Jun Ko , Boo Woo , Young Kim
发明人： Seong Kang , Seok Choi , Kyoung Ha , Jun Ko , Boo Woo , Young Kim
IPC分类号： C07C51/42 , C07C51/44 , C07C51/487
CPC分类号： C07C51/44 , B01J2219/00006 , C07C51/487 , C07C57/04
摘要： Disclosed is a simplified method for recovering acrylic acid from a mixture containing acrylic acid, acrylic acid dimer and impurities with high boiling point, in a stable and efficient manner. The method comprises the steps of: introducing the mixture into an acrylic acid recovering device comprising an acrylic distillation unit integrated with an acrylic acid dimer pyrolysis tank; carrying out decomposition of acrylic acid dimmer under reduced pressure and recovering acrylic acid. The method optionally further comprises a step of recycling a portion of the solution obtained from the bottom of the acrylic acid recovering device to the acrylic acid recovering device.
摘要翻译：公开了一种以稳定且有效的方式从含有丙烯酸，丙烯酸二聚物和高沸点杂质的混合物中回收丙烯酸的简化方法。该方法包括以下步骤：将混合物引入丙烯酸回收装置中，该装置包括与丙烯酸二聚物热解罐结合的丙烯酸蒸馏装置; 在减压下进行丙烯酸二聚体的分解并回收丙烯酸。所述方法还包括将从丙烯酸回收装置的底部获得的溶液的一部分再循环到丙烯酸回收装置的步骤。

5. 发明申请

US20070073084A1 Method of producing unsaturated acid in fixed-bed catalytic partial oxidation reactor with high efficiency 有权
标题翻译：固定床催化部分氧化反应器高效生产不饱和酸的方法
公开(公告)号：US20070073084A1
公开(公告)日：2007-03-29
申请号：US11483752
申请日：2006-07-10
申请人： Kyoung Ha , Boo Woo , Jun Ko , Seong Kang , Seok Choi , Young Kim
发明人： Kyoung Ha , Boo Woo , Jun Ko , Seong Kang , Seok Choi , Young Kim
IPC分类号： B01J8/04 , C07C51/16 , C07C51/235
CPC分类号： C07C45/34 , B01J8/0453 , B01J8/0457 , B01J8/067 , B01J2208/00212 , B01J2208/0053 , B01J2208/025 , B01J2219/0004 , C07C45/35 , C07C45/36 , C07C45/37 , C07C51/215 , C07C51/252 , C07C47/21 , C07C47/22 , C07C57/04
摘要： Disclosed is a process for producing unsaturated aldehydes and/or unsaturated acids from olefins or alkanes in a fixed bed shell-and-tube heat exchanger-type reactor by catalytic vapor phase oxidation. A heat exchanger-type reactor for use in such a process is also disclosed. In the process, at least one of the first-step reaction zone and the second-step reaction zone is divided into two or more shell spaces by at least one partition; each of the divided shell spaces is independently heat-controlled; a heat transfer medium in the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone has a temperature ranging from the lowest active temperature of a catalyst layer packed in a reaction tube corresponding to the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone to [the lowest active temperature+20° C.], when referring to the two or more shell spaces corresponding to the first-step reaction zone sequentially as the first shell space of the first-step reaction zone, the second shell space of the first-step reaction zone, . . . , the nth shell space of the first-step reaction zone, and the two or more shell spaces corresponding to the second-step reaction zone sequentially as the first shell space of the second-step reaction zone, the second shell space of the second-step reaction zone, . . . , the nth shell space of the second-step reaction zone; and the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone is controlled in such a manner that the first shell space provides a reactant conversion contribution per length as defined in Equation 1 or 2 of 1.2˜2.5.
摘要翻译：公开了一种通过催化气相氧化在固定床管壳式热交换器型反应器中由烯烃或烷烃生产不饱和醛和/或不饱和酸的方法。还公开了一种用于这种方法的热交换器型反应器。在该过程中，至少一个第一步骤反应区和第二步反应区被至少一个隔板分成两个或多个壳层空间; 每个分开的壳空间是独立的热控制的; 在第一步骤反应区的第一壳体空间或第二阶段反应区的第一壳体空间中的传热介质的温度范围从填充在对应于第一步骤的反应管的反应管中的催化剂层的最低活性温度当提及对应于第一步反应的两个或多个壳层空间时，第一步反应区的壳体空间或第二步反应区的第一壳空间为[最低活性温度+ 20℃] 作为第一步反应区的第一壳空间，第一步反应区的第二壳空间。。。，第一步反应区的第n个第<！ - SIPO - >壳空间，以及对应于第二步反应区的两个或多个壳层空间依次作为第二步反应区的第一壳空间，第二步反应区的第二个壳体空间。。。，第二步反应区的第n个壳空间; 并且以这样的方式控制第一步骤反应区或第二阶段反应区的第一壳层空间的第一壳层空间，使得第一壳空间提供如式1或2中定义的每个长度的反应物转化贡献 1.2〜2.5。

6. 发明申请

US20050192464A1 Method for producing (meth) acrylic acid 有权
公开(公告)号：US20050192464A1
公开(公告)日：2005-09-01
申请号：US11061019
申请日：2005-02-18
申请人： Seong Kang , Seok Choi , Kyoung Ha , Geon Kim , Boo Woo , Sang Lee , Young Kim , Koo Kang
发明人： Seong Kang , Seok Choi , Kyoung Ha , Geon Kim , Boo Woo , Sang Lee , Young Kim , Koo Kang
IPC分类号： C07C51/43 , C07C51/42 , C07C51/48
CPC分类号： C07C51/48 , C07C57/04
摘要： The present invention relates to a method for producing (meth)acrylic acid comprising a process of recovering (meth)acrylic acid as an aqueous (meth)acrylic acid from a (meth)acrylic acid-containing gas mixture produced by the catalytic gas phase oxidation of at least one reactant selected from the group consisting of propane, propylene, isobutylene and (meth)acrolein, and a system usable for the method. The recovery process comprises the steps of: (1) feeding the (meth)acrylic acid-containing gas mixture into a quenching tower and condensing it in the quenching tower so as to recover an aqueous (meth)acrylic acid solution from the bottom of the quenching tower, in which some of the recovered aqueous solution of (meth)acrylic acid is recycled to the top part of the quenching tower so as to condense the (meth)acrylic acid-containing gas mixture; (2) passing the uncondensed part of the (meth)acrylic acid-containing gas mixture from the quenching tower through the top of the quenching tower to an absorption column; (3) absorbing (meth)acrylic acid contained in the uncondensed part of the (meth)acrylic acid-containing gas mixture in the absorption column with a absorption solvent; (4) feeding the (meth)acrylic acid solution resulting from the absorption in the step (3) to a desorption column; and (5) separating the solvent used in the step (3) from the (meth)acrylic acid solution in the desorption column, so that the substance from which the solvent has been removed in the desorption column is fed to the quenching tower, and the separated solvent is recycled to the absorption column. The inventive method is an efficient and economic method which allows a reduction in energy consumption in subsequent purification processes by maximizing the concentration of an aqueous solution of (meth)acrylic solution recovered at the bottom of the quenching tower and minimizing the concentration of (meth)acrylic acid lost from the vent gas of the absorption column.

7. 发明申请

US20050143601A1 Method of producing unsaturated acid in fixed-bed catalytic partial oxidation reactor with enhanced heat control system 有权
标题翻译：固定床催化部分氧化反应器生产不饱和酸的方法，采用增强型热控系统
公开(公告)号：US20050143601A1
公开(公告)日：2005-06-30
申请号：US11019363
申请日：2004-12-23
申请人： Kyoung Ha , Geon Kim , Seong Kang , Boo Woo
发明人： Kyoung Ha , Geon Kim , Seong Kang , Boo Woo
IPC分类号： C07C51/235 , C07B41/08 , C07C51/16 , C07C51/25
CPC分类号： C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要： The present invention provides a process of producing unsaturated acids from unsaturated aldehydes by fixed-bed catalytic partial oxidation in a shell-and-tube heat exchanger-type reactor, as well as a shell-and-tube heat exchanger-type reactor for use in the process. In the invention, second-stage reaction zone of mainly producing unsaturated acids by the catalytic vapor phase oxidation of an unsaturated aldehyde-containing gas mixture produced in a first-stage reaction zone with molecular oxygen is divided into two or more shell spaces by at least one partition. Each of the divided shell spaces is filled with a heat transfer medium, and the heat transfer medium in each shell space is maintained at isothermal temperature or a temperature difference of 0-5° C. Also, in order to protect catalyst layers from a highly exothermic reaction, the process is performed at a limited temperature difference between the temperature at a hot spot and the temperature of the heat transfer medium. Also, in order to facilitate the removal of heat generation at a location where the partition is placed, a reaction inhibition layer is disposed in that location. The improved heat control system for reactors provided according to the present invention can secure the heat stability of the catalyst layer, reduce the amount of byproducts, and increase the yield of a final product.
摘要翻译：本发明提供了一种在壳管式热交换器型反应器中通过固定床催化部分氧化由不饱和醛生成不饱和酸的方法，以及用于在管式热交换器型反应器中使用的管壳式热交换器型反应器的过程。在本发明中，通过在分子氧的第一阶段反应区中产生的不饱和醛的气体混合物的催化气相氧化主要生成不饱和酸的第二阶段反应区至少分成两个或更多个壳层空间一个分区。每个分开的壳体空间填充有传热介质，并且每个壳体空间中的传热介质保持在等温温度或0-5℃的温差。此外，为了保护催化剂层免受高温放热反应，该过程在热点温度与传热介质的温度之间的有限温度差下进行。此外，为了便于在隔离物的位置除去发热，在该位置设置反应抑制层。根据本发明提供的用于反应器的改进的热控制系统可以确保催化剂层的热稳定性，减少副产物的量，并且提高最终产品的产率。

8. 发明申请

US20060247398A1 Method of producing styren polymers using high speed catalytic dispersion technology 失效
标题翻译：使用高速催化分散技术生产苯乙烯聚合物的方法
公开(公告)号：US20060247398A1
公开(公告)日：2006-11-02
申请号：US11396763
申请日：2006-04-03
申请人： Mooho Hong , Sang Lee , Boo Woo
发明人： Mooho Hong , Sang Lee , Boo Woo
IPC分类号： C08F4/44
CPC分类号： C08F12/08 , C08F2/01 , C08F4/65908 , C08F4/65912 , C08F12/16 , C08F12/22 , C08F12/30 , Y10S526/902 , Y10S526/919 , C08F4/6592
摘要： Provided is a method of preparing styrene polymers, the method comprising: homogeneously mixing a styrene monomer; a cocatalyst mixture of Group 13 metal-containing organic metal compound cocatalyst and an inert organic solvent; and a catalyst mixture of a metallocene catalyst and the inert organic solvent using a high speed homogenizing mixer to obtain a homogenized mixture; and providing the homogenized mixture to a reactor to initiate polymerization. In this method, catalyst is quickly dispersed among monomers using a high speed homogenizing mixer so that formation of gel, which occurs when a syndiotactic styrene polymer is produced, can be fundamentally prevented. In addition, a styrene polymer prepared using the method has high activity, good stereoregularity, and uniform molecular distribution.
摘要翻译：提供一种制备苯乙烯聚合物的方法，该方法包括：均匀混合苯乙烯单体; 含13族金属的有机金属化合物助催化剂和惰性有机溶剂的助催化剂混合物; 和茂金属催化剂和惰性有机溶剂的催化剂混合物，使用高速匀浆混合机得到均质混合物; 并将均匀的混合物提供到反应器以引发聚合。在该方法中，使用高速匀浆混合器将催化剂快速分散在单体中，从而可以从根本上防止在产生间规苯乙烯聚合物时发生凝胶的形成。此外，使用该方法制备的苯乙烯聚合物具有高活性，良好的立构规整性和均匀的分子分布。

9. 发明申请

US20060100413A1 Method of producing modified polycarbonate using spray-crystallizing method 有权
标题翻译：使用喷雾结晶法制备改性聚碳酸酯的方法
公开(公告)号：US20060100413A1
公开(公告)日：2006-05-11
申请号：US11268192
申请日：2005-11-07
申请人： Mijeung Hong , Jong Kim , Sung Park , Boo Woo
发明人： Mijeung Hong , Jong Kim , Sung Park , Boo Woo
IPC分类号： C08G64/00
CPC分类号： C08G64/20 , C08G64/186 , C08G64/205 , C08G64/307
摘要： Provided is a method of producing a high-molecular weight modified polycarbonate resin. The method includes a melt condensation polymerization process in which transesterification and quick condensation polymerization are sequentially performed, a spray crystallization process, and a solid state polymerization process. When this method is used, solid state polymerization can be performed without additional drying, milling and fractionation processes so that the operation time and costs are highly reduced. In addition, crystallinity and size of crystallized modified polycarbonate particles can be efficiently controlled to produce a high-molecular weight modified polycarbonate having uniform physical properties in the solid state polymerization.
摘要翻译：提供高分子量改性聚碳酸酯树脂的制造方法。该方法包括依次进行酯交换和快速缩聚的熔融缩聚方法，喷雾结晶法和固态聚合法。当使用该方法时，可以进行固态聚合而不需要额外的干燥，研磨和分馏过程，从而高度降低操作时间和成本。此外，可以有效地控制结晶化聚碳酸酯颗粒的结晶度和尺寸，以制备在固态聚合中具有均匀物理性能的高分子量改性聚碳酸酯。

10. 发明申请

US20060199940A1 Method of preparing polycarbonate resin 有权
公开(公告)号：US20060199940A1
公开(公告)日：2006-09-07
申请号：US11368568
申请日：2006-03-06
申请人： Jong Kim , Boo Woo , Sung Park , Mijeung Hong
发明人： Jong Kim , Boo Woo , Sung Park , Mijeung Hong
IPC分类号： C08G64/00
CPC分类号： C08G64/14 , C08G64/42
摘要： A method of preparing a polycarbonate resin having improved thermal stability is provided. The method includes: mixing polycarbonate having hydroxy terminal groups and a end terminator, a compound of formula (1) (refer to the detailed description section) at normal temperature and pressure to obtain a mixture; and performing a melt reaction on the mixture at 250-320° C. and reduced pressure to highly reduce the final concentration of the hydroxy terminal groups of the polycarbonate resin.

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