专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5645696A Process for preparing unsaturated carboxylic acid esters and apparatus for preparing the same 失效
标题翻译：不饱和羧酸酯的制备方法及其制备方法
公开(公告)号：US5645696A
公开(公告)日：1997-07-08
申请号：US346191
申请日：1994-11-21
申请人： Boo Gon Woo , Kwang Ho Park , Hwa Myung Joo , Han Sun Lee
发明人： Boo Gon Woo , Kwang Ho Park , Hwa Myung Joo , Han Sun Lee
IPC分类号： B01J8/02 , B01J8/04 , B01J31/08 , C07C67/08 , C07C69/52 , C07C69/54 , B01D3/34
CPC分类号： B01J8/0496 , B01J8/0453 , C07C67/08 , B01J2208/00247 , B01J2208/00283 , Y02P20/582
摘要： The present invention relates to a process for continuously preparing unsaturated carboxylic acid esters by esterifying an (aliphatic) alcohol having 1 to 8 carbon atoms with an unsaturated carboxylic acid in the presence of a cation exchange resin catalyst, characterized in that the process is conducted by continuously circulating said reactants in contact with said catalyst from the top to the bottom through a reactor which is composed in the form of a fixed bed divided into 1 to 10 steps wherein each step comprises a catalyst bed, a filter and a air inlet, and has a thermal insulating outer wall, supplying a vaporizing heat for extraction of water, which is produced during the reaction, through a heat exchanger outside the reactor, circulating the reactants between the reactor and the heat exchanger by means of a circulating pump, contacting an azeotropic mixture of water vaporized by the heat exchanger and an alcohol with an alcohol circulating in a column tower or a raw alcohol supplied from an alcohol inlet located on the top of the column tower to recycle the high boiling component into the reactor and, at the same time, to transfer the light component to the upper part of the column in which the light component is condensed, separating the condensate into an organic layer and water in a decanter, and then recycling the organic layer into the reactor and removing the water produced during the reaction, and a novel apparatus for carrying out this process.
摘要翻译：本发明涉及在阳离子交换树脂催化剂存在下，通过用不饱和羧酸酯化具有1〜8个碳原子的（脂肪族）醇来连续制备不饱和羧酸酯的方法，其特征在于，该方法是通过将所述反应物与所述催化剂从顶部到底部连续循环通过以固定床形式分成1至10个步骤的反应器，其中每个步骤包括催化剂床，过滤器和进气口，以及具有绝热外壁，通过在反应器外部的热交换器提供在反应期间产生的用于萃取水的汽化热，借助于循环泵将反应物循环在反应器和热交换器之间，由热交换器蒸发的水的共沸混合物和在柱塔或粗酒精中循环的醇的醇从位于塔塔顶部的酒精入口引出，将高沸点组分循环到反应器中，同时将光组分转移到其中冷成分的塔的上部，分离将冷凝物倒入有机层中并在滗析器中加水，然后将有机层再循环到反应器中并除去反应期间产生的水，以及用于实施该方法的新型装置。

2. 发明授权

US07368521B2 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：US07368521B2
公开(公告)日：2008-05-06
申请号：US11268192
申请日：2005-11-07
申请人： Mijeung Hong , Jong Hun Kim , Sung Kyou Park , Boo Gon Woo
发明人： Mijeung Hong , Jong Hun Kim , Sung Kyou Park , Boo Gon Woo
IPC分类号： C08F6/00
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。

3. 发明授权

US07332559B2 Method of preparing polycarbonate resin 有权
标题翻译：聚碳酸酯树脂的制备方法
公开(公告)号：US07332559B2
公开(公告)日：2008-02-19
申请号：US11255515
申请日：2005-10-21
申请人： Mijeung Hong , Jong Hun Kim , Sung Kyou Park , Boo Gon Woo
发明人： Mijeung Hong , Jong Hun Kim , Sung Kyou Park , Boo Gon Woo
IPC分类号： C08G64/00
CPC分类号： C08G64/307 , C08G64/186 , C08G64/205
摘要： A method of preparing a high molecular weight polycarbonate resin is provided. In the method, a condensation polymerization process is used so that a mole fraction of arylcarbonate existing in a terminated group of a reaction side product having a degree of polymerization of less than 3 obtained as a result of transesterification and in a non-reacted diarylcarbonate is reduced. As a result, a high molecular weight polycarbonate can be obtained by solid state polymerization. A polycarbonate with an identical molecular weight can be produced in a substantially short time, compared with a polycarbonate produced through solid state polymerization without condensation polymerization. In addition, the non-use of a poisonous phosgene contributes to stability. Furthermore, quality polycarbonate may be guaranteed.
摘要翻译：提供了制备高分子量聚碳酸酯树脂的方法。在该方法中，使用缩聚方法，使得存在于作为酯交换反应的结果得到的聚合度小于3的反应副产物的末端基团中的芳基碳酸酯的摩尔分数和未反应的碳酸二芳基酯的摩尔分数为减少结果，可以通过固态聚合获得高分子量聚碳酸酯。与通过不进行缩聚的固相聚合制造的聚碳酸酯相比，可以在短时间内生产具有相同分子量的聚碳酸酯。此外，不使用有毒光气有助于稳定。此外，可以保证质量的聚碳酸酯。

4. 发明授权

US07816559B2 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：US07816559B2
公开(公告)日：2010-10-19
申请号：US11378438
申请日：2006-03-17
申请人： Boo Gon Woo , Jun Seok Ko , Kyoung Su Ha , Seong Pil Kang , Seok Hwan Choi , Young Bae Kim
发明人： Boo Gon Woo , Jun Seok Ko , Kyoung Su Ha , Seong Pil Kang , Seok Hwan Choi , Young Bae Kim
IPC分类号： C07C51/16
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的活性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。

5. 发明授权

US07262324B2 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：US07262324B2
公开(公告)日：2007-08-28
申请号：US11019363
申请日：2004-12-23
申请人： Kyoung Su Ha , Geon Yong Kim , Seong Pil Kang , Boo Gon Woo
发明人： Kyoung Su Ha , Geon Yong Kim , Seong Pil Kang , Boo Gon Woo
IPC分类号： C07C51/16 , B01J8/04
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。

6. 发明申请

US20060089484A1 Method of preparing polycarbonate resin 有权
标题翻译：聚碳酸酯树脂的制备方法
公开(公告)号：US20060089484A1
公开(公告)日：2006-04-27
申请号：US11255515
申请日：2005-10-21
申请人： Mijeung Hong , Jong Hun Kim , Sung Kyou Park , Boo Gon Woo
发明人： Mijeung Hong , Jong Hun Kim , Sung Kyou Park , Boo Gon Woo
IPC分类号： C08G64/00
CPC分类号： C08G64/307 , C08G64/186 , C08G64/205
摘要： A method of preparing a high molecular weight polycarbonate resin is provided. In the method, a condensation polymerization process is used so that a mole fraction of arylcarbonate existing in a terminated group of a reaction side product having a degree of polymerization of less than 3 obtained as a result of transesterification and in a non-reacted diarylcarbonate is reduced. As a result, a high molecular weight polycarbonate can be obtained by solid state polymerization. A polycarbonate with an identical molecular weight can be produced in a substantially short time, compared with a polycarbonate produced through solid state polymerization without condensation polymerization. In addition, the non-use of a poisonous phosgene contributes to stability. Furthermore, quality polycarbonate may be guaranteed.
摘要翻译：提供了制备高分子量聚碳酸酯树脂的方法。在该方法中，使用缩聚方法，使得存在于作为酯交换反应的结果得到的聚合度小于3的反应副产物的末端基团中的芳基碳酸酯的摩尔分数和未反应的碳酸二芳基酯的摩尔分数为减少结果，可以通过固态聚合获得高分子量聚碳酸酯。与通过不进行缩聚的固相聚合制造的聚碳酸酯相比，可以在短时间内生产具有相同分子量的聚碳酸酯。此外，不使用有毒光气有助于稳定。此外，可以保证质量的聚碳酸酯。

7. 发明申请

US20100015017A1 METHOD OF PRODUCING UNSATURATED ACID IN FIXED-BED CATALYTIC PARTIAL OXIDATION REACTOR WITH HIGH EFFICIENCY 审中-公开
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：US20100015017A1
公开(公告)日：2010-01-21
申请号：US12564708
申请日：2009-09-22
申请人： Kyoung Su Ha , Boo Gon Woo , Jun Seok Ko , Seong Pil Kang , Seok Hwan Choi , Young Bae Kim
发明人： Kyoung Su Ha , Boo Gon Woo , Jun Seok Ko , Seong Pil Kang , Seok Hwan Choi , Young Bae Kim
IPC分类号： B01J8/04
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： A shell-and-tube heat exchanger-type reactor including one or more catalytic tubes, each including a first-step reaction zone and a second-step reaction zone, wherein at least one of the first-step reaction zone and the second-step reaction zone is divided into two or more shell spaces by a partition; each of the divided shell spaces is independently heat-controlled; and a heat transfer medium having a temperature from the lowest active temperature of a catalyst layer 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 of the catalyst layer plus 20° C.; and the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone is controlled so as to provide a reactant conversion contribution per length of 1.2˜2.5.
摘要翻译：一种管壳式热交换器型反应器，其包括一个或多个催化管，每个催化管包括第一步骤反应区和第二步反应区，其中至少一个第一步反应区和第二步反应区通过隔板分成两个或多个壳体空间; 每个分开的壳空间是独立的热控制的; 以及传热介质，其具有对应于第一步骤反应区的第一壳体空间或第二阶段反应区域的第一壳体空间的反应管中催化剂层的最低活性温度的温度到最低活性催化剂层的温度加上20℃。并且控制第一步反应区的第一壳体空间或第二步反应区的第一壳体空间，以便提供每个长度为1.2〜2.5的反应物转化率贡献。

8. 发明授权

US07632968B2 Method for producing (meth) acrylic acid 有权
标题翻译：（甲基）丙烯酸的制造方法
公开(公告)号：US07632968B2
公开(公告)日：2009-12-15
申请号：US11192223
申请日：2005-07-28
申请人： Seong Pil Kang , Seok Hwan Choi , Kyoung Su Ha , Jun Seok Ko , Young Bae Kim , Boo Gon Woo , Min Jeong Park
发明人： Seong Pil Kang , Seok Hwan Choi , Kyoung Su Ha , Jun Seok Ko , Young Bae Kim , Boo Gon Woo , Min Jeong 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.
摘要翻译：公开了一种制备（甲基）丙烯酸的方法，包括从（甲基）丙烯酸水溶液中回收（甲基）丙烯酸作为（甲基）丙烯酸水溶液的方法，所述方法至少由一种选自丙烷，丙烯，异丁烯和（甲基）丙烯醛的反应物，其中回收方法包括以下步骤：（1）将含（甲基）丙烯酸的气体混合物进料到淬火塔中并将其冷凝淬火塔，以从骤冷塔的底部回收（甲基）丙烯酸水溶液，其中一些回收的（甲基）丙烯酸水溶液被循环到淬火塔的上部以冷凝（甲基）丙烯酸气体混合物; （2）使来自（甲基）丙烯酸的气体混合物的未冷凝的部分从淬火塔的顶部通到蒸馏塔; 和（3）加热蒸馏塔的底部以将含水的杂质组分与未冷凝（甲基）丙烯酸的气体混合物分离并从蒸馏塔的顶部排出。还公开了用于执行该方法的系统。

9. 发明授权

US07495065B2 Method of preparing polycarbonate resin 有权
标题翻译：聚碳酸酯树脂的制备方法
公开(公告)号：US07495065B2
公开(公告)日：2009-02-24
申请号：US11368568
申请日：2006-03-06
申请人： Jong Hun Kim , Boo Gon Woo , Sung Kyou Park , Mijeung Hong
发明人： Jong Hun Kim , Boo Gon Woo , Sung Kyou Park , Mijeung Hong
IPC分类号： C08G64/00 , C08G63/02
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.
摘要翻译：提供了制备具有改进的热稳定性的聚碳酸酯树脂的方法。该方法包括：在常温常压下混合具有羟基末端基团的聚碳酸酯和末端终止剂，式（1）化合物（详细描述部分），得到混合物; 并在250-320℃下对该混合物进行熔融反应并减压以高度降低聚碳酸酯树脂的羟基端基的最终浓度。

10. 发明授权

US08308913B2 Apparatus for recovering acrylic acid 有权
标题翻译：丙烯酸回收设备
公开(公告)号：US08308913B2
公开(公告)日：2012-11-13
申请号：US12565359
申请日：2009-09-23
申请人： Seong Pil Kang , Seok Kwan Choi , Kyoung Su Ha , Jun Seok Ko , Boo Gon Woo , Young Bae Kim
发明人： Seong Pil Kang , Seok Kwan Choi , Kyoung Su Ha , Jun Seok Ko , Boo Gon Woo , Young Bae Kim
IPC分类号： B01D1/22 , B01D3/10 , B01D3/28 , C07C51/44
CPC分类号： C07C51/44 , B01J2219/00006 , C07C51/487 , C07C57/04
摘要： Disclosed is an apparatus for recovering an acrylic acid from a mixture containing acrylic acid, acrylic acid dimer and impurities with high boiling point, including: an acrylic acid recovering device that comprises an acrylic acid distillation unit being present within an acrylic acid dimer pyrolysis tank, and is operated under reduced pressure; a separation column for removing impurities with high boiling point from the mixture which is introduced into the acrylic acid recovering device; and a line for introducing the mixture into the acrylic acid recovering device.
摘要翻译：公开了一种用于从含有丙烯酸，丙烯酸二聚体和高沸点杂质的混合物中回收丙烯酸的装置，包括：丙烯酸回收装置，其包含存在于丙烯酸二聚体热解罐内的丙烯酸蒸馏单元，并在减压下运行; 用于从引入丙烯酸回收装置的混合物中除去高沸点杂质的分离塔; 以及用于将混合物引入丙烯酸回收装置的管线。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式