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1. 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。

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

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.

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

US20050049435A1 Method of producing unsaturated aldehyde and 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中增强热控系统的不饱和醛和不饱和酸的生产方法
公开(公告)号：US20050049435A1
公开(公告)日：2005-03-03
申请号：US10931034
申请日：2004-09-01
申请人： Kyoung Su Ha , Geon Kim , Seong Kang , Seok Choi , Boo Gon Woo
发明人： Kyoung Su Ha , Geon Kim , Seong Kang , Seok Choi , Boo Gon Woo
IPC分类号： C07C45/27 , C07C51/25 , C07C51/16 , C07C51/235
CPC分类号： C07C51/252 , C07C57/04
摘要： The present invention provides a process of producing unsaturated aldehydes and unsaturated acids from olefins by fixed-bed catalytic partial oxidation in a shell-and-tube heat exchanger-type reactor. In this process, the reactor comprises a first-step reaction zone of mainly producing the unsaturated aldehydes, a second-step reaction zone of mainly producing the unsaturated acids, or both the two zones. The first-step reaction zone is divided into two or more zones by a 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. The temperatures of the heat transfer media in each of the divided shell spaces are set to increase in the moving direction of reactants. In order to facilitate the removal of heat generation at a location where the partition is placed, a reaction inhibition layer is disposed in the first-step reaction zone. Also, in order to protect the catalyst layer from a highly exothermic reaction, the process is performed at a limited temperature difference between the temperature in a hot spot and the temperature of a molten salt. If the improved heat control system according to the present invention is used, the heat stability of the catalyst layer will be secured and the yields of intermediate and final products can be increased.
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从烯烃生产不饱和醛和不饱和酸的方法。在该方法中，反应器包括主要产生不饱和醛的第一步反应区，主要产生不饱和酸的第二步反应区或两个区。第一步反应区通过隔板分成两个或多个区域。每个分隔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。传热介质的温度分开的壳体空间被设置为在反应物的移动方向上增加。为了便于在放置隔板的位置除去发热，反应抑制层设置在第一步反应区中。此外，为了保护催化剂层免受高度放热的反应，该过程在热点温度与熔融盐的温度之间的有限温度差下进行。如果使用根据本发明的改进的热控制系统，则将确保催化剂层的热稳定性，并且可以提高中间产品和最终产品的产率。

8. 发明申请

US20060188847A1 Dental rescue implant 审中-公开
标题翻译：牙科救援植入物
公开(公告)号：US20060188847A1
公开(公告)日：2006-08-24
申请号：US11344427
申请日：2006-01-31
申请人： Kwang Park , Seok Choi
发明人： Kwang Park , Seok Choi
IPC分类号： A61C8/00
CPC分类号： A61C8/0022
摘要： Disclosed herein is a dental rescue implant implanted into an alveolar bone for forming a root of an artificial tooth. The dental rescue implant includes: a wide sectional body part having a sectional diameter of 6.5 mm to 8 mm, greater than a sectional diameter of 6 mm of a typical implant body part, whereby the wide sectional body part can be implanted directly into the corresponding alveolar bone without refilling a damaged part with a bone substitutive material when implant surgery ends in failure; and a wide screw thread formed on the outer periphery of the wide sectional body part, the wide screw thread being formed at 1˜1.75 pitch intervals, whereby the wide sectional body part is implanted into the alveolar bone with relatively small resistance. The implant can be directly implanted into the alveolar bone without refilling a damaged part with a substitutive material even though a molar teeth part is lost or implant surgery ends in a failure by complex factors.
摘要翻译：本文公开了植入牙槽骨中以形成人造牙根部的牙科救援植入物。牙齿救援植入物包括：具有6.5mm至8mm的截面直径的大截面体部分，大于典型植入物主体部分的截面直径6mm，由此宽的主体部分可以直接植入相应的当植入手术失败时，牙槽骨不用骨替代材料重新填充受损部分; 以及形成在宽截面体部分的外周上的宽螺纹，宽螺纹以1〜1.75个间距形成，由此将宽的主体部分以相对较小的阻力注入牙槽骨中。植入物可以直接植入牙槽骨，而不用补充材料重新填充受损部分，即使磨牙部分丢失或植入手术由于复杂因素而导致失败。

9. 发明申请

US20070018187A1 Vertical GaN-based LED and method of manfacturing the same 有权
标题翻译：垂直GaN基LED及其制造方法
公开(公告)号：US20070018187A1
公开(公告)日：2007-01-25
申请号：US11490254
申请日：2006-07-21
申请人： Jae Lee , Bang Oh , Hee Choi , Jeong Oh , Seok Choi , Su Lee
发明人： Jae Lee , Bang Oh , Hee Choi , Jeong Oh , Seok Choi , Su Lee
IPC分类号： H01L33/00 , H01L21/00
CPC分类号： H01L33/22 , H01L33/14
摘要： A vertical GaN-based LED and a method of manufacturing the same are provided. The vertical GaN-based LED includes an n-electrode, a first n-type GaN layer, a first AlGaN layer, a GaN layer, a second AlGaN layer, a second n-type GaN layer, an active layer, a p-type GaN layer, and a structure support layer. The first n-type GaN layer has uneven patterns having a plurality of protuberances. The first AlGaN layer is formed under the first n-type GaN layer, and the GaN layer is formed under the first AlGaN layer. The active layer is formed under the second n-type GaN layer, and the p-type GaN layer is formed under the active layer. A p-electrode is formed under the p-type GaN layer, and the structure support layer is formed under the p-electrode.
摘要翻译：提供了一种垂直GaN基LED及其制造方法。垂直GaN基LED包括n电极，第一n型GaN层，第一AlGaN层，GaN层，第二AlGaN层，第二n型GaN层，有源层，p型 GaN层和结构支撑层。第一n型GaN层具有具有多个突起的不均匀图案。第一AlGaN层形成在第一n型GaN层下方，并且GaN层形成在第一AlGaN层的下方。有源层形成在第二n型GaN层下面，p型GaN层形成在有源层下面。在p型GaN层的下方形成有p电极，在p电极的下方形成有结构支撑层。

10. 发明申请

US20060278888A1 Vertically-structured nitride semiconductor light emitting diode 审中-公开
标题翻译：垂直结构的氮化物半导体发光二极管
公开(公告)号：US20060278888A1
公开(公告)日：2006-12-14
申请号：US11443155
申请日：2006-05-31
申请人： Dong Kim , Hee Choi , Seok Choi , Tae Kim
发明人： Dong Kim , Hee Choi , Seok Choi , Tae Kim
IPC分类号： H01L33/00
CPC分类号： H01L33/20 , H01L33/42 , H01L2933/0083
摘要： The present invention relates to a vertically-structured nitride semiconductor light emitting diode. The vertically-structured nitride semiconductor light emitting diode includes an n-type electrode; an n-type nitride semiconductor layer that is formed on the lower surface of the n-type electrode and on which surface texturing with a diffraction grating structure is formed, the diffraction grating structure composed of more than one line; an active layer that is formed on the lower surface of the n-type nitride semiconductor layer; a p-type nitride semiconductor layer that is formed on the lower surface of the active layer; and a p-type electrode that is formed on the lower surface of the p-type nitride semiconductor layer.
摘要翻译：本发明涉及一种垂直结构的氮化物半导体发光二极管。垂直结构的氮化物半导体发光二极管包括n型电极; n型氮化物半导体层，其形成在n型电极的下表面上，并且在其上形成有衍射光栅结构的表面纹理，所述衍射光栅结构由多条线组成; 形成在所述n型氮化物半导体层的下表面上的有源层; p型氮化物半导体层，形成在有源层的下表面上; 以及形成在p型氮化物半导体层的下表面上的p型电极。

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