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公开(公告)号：US20240299859A1
公开(公告)日：2024-09-12
申请号：US18020873
申请日：2022-06-16
申请人： LG CHEM, LTD.
发明人： Sung Kyun KIM , Sung Kyu LEE , Tae Woo KIM
CPC分类号： B01D3/141 , B01D3/008 , B01D3/143 , B01D3/32 , B01D5/0063 , B01D17/0214
摘要： The present disclosure provides a multi-component mixture separation system including a distillation column including a first section and a second section separated by a partition wall, and a phase separator receiving a lower discharge stream of the second section and separating the stream into an aqueous phase and an oil phase, and refluxing a portion of the separated aqueous phase or oil phase to the first section, in which the first section includes a chimney tray provided on an upper portion, and the first section is fed with a feed stream containing three or more components to separate high-boiling point component to a lower portion, and a gaseous component moves to the second section.
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公开(公告)号：US20240174586A1
公开(公告)日：2024-05-30
申请号：US17791858
申请日：2021-12-05
申请人： LG CHEM, LTD.
发明人： Sa Eun PARK , Sung Kyu LEE , Tae Woo KIM
CPC分类号： C07C29/172 , C07C29/74
摘要： A method of preparing isopropyl alcohol that allows separation of a reaction product stream formed by reacting a propylene monomer and water in a reactor into an unreacted propylene monomer and isopropyl alcohol with high purity using an absorption column, a gas purification column, and an inert gas removal column.
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公开(公告)号：US20210356640A1
公开(公告)日：2021-11-18
申请号：US17287310
申请日：2020-01-10
申请人： LG CHEM, LTD.
发明人： Tae Woo KIM , Gae Sung KIM , Hyun Soo LEE , Khyung Sik CHO , Jin Yong PARK , Sang Hyun NAH
IPC分类号： G02B5/30 , G02B1/14 , G02F1/1335
摘要： The present application relates to a polarizing plate. The present application can provide a polarizing plate having excellent optical and mechanical durability even when it is formed in a thin thickness or is applied to a thin display device and without causing bending or twisting when applied to a display device.
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公开(公告)号：US20200071244A1
公开(公告)日：2020-03-05
申请号：US16613752
申请日：2017-11-21
申请人： LG CHEM, LTD.
发明人： Tae Woo KIM , Sung Kyu LEE , Joon Ho SHIN , Yeonuk CHOO
摘要： The present invention provides an ethylene separation process comprising an first and second deethanizer columns and an acetylene converter, thereby providing an ethylene stream having a purity of 99 wt % or more to the middle of an ethylene separation column. The present invention increases the production amount of ethylene and also reduces energy consumption by passing the feed through a preliminary ethylene separation process, without having to change existing facilities in which an acetylene converter is provided downstream of the deethanizer column.
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公开(公告)号：US20160231062A1
公开(公告)日：2016-08-11
申请号：US15022191
申请日：2014-09-17
申请人： LG CHEM, LTD.
发明人： Tae Woo KIM , Sung Kyu LEE , Joon Ho SHIN
CPC分类号： B01J19/0053 , B01J10/00 , B01J19/0013 , B01J19/24 , B01J2219/00029 , B01J2219/00103 , B01J2219/00108
摘要： Disclosed are a heat recovery device and a heat recovery method. According to the heat recovery device, it is possible to recovery heat which is discontinuously generated in a batch reactor. In addition, a heat-exchanged heat exchange medium is supplied to a heat storage facility so that various kinds and a great quantity of steams can be produced, if necessary, thereby utilizing these produced steams in various industrial fields.
摘要翻译： 公开了一种热回收装置和热回收方法。 根据热回收装置，可以回收在间歇式反应器中不连续产生的热量。 此外，热交换介质被供给到蓄热设备，如果需要，可以生产各种和大量的蒸汽，从而在各种工业领域中利用这些生产的蒸汽。
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公开(公告)号：US20160159716A1
公开(公告)日：2016-06-09
申请号：US14904028
申请日：2014-07-11
申请人： LG CHEM, LTD.
发明人： Jong Suh PARK , Joon ho SHIN , Tae Woo KIM , Jong Ku LEE , Se Ho PARK
CPC分类号： C07C37/685 , B01J19/24 , B01J2219/00103 , B01J2219/24 , C07B63/00 , C07C37/20 , C07C37/74 , C07C37/76 , C07C37/82 , C07C37/84 , C07C39/16
摘要： Provided are an apparatus and a method for preparing bisphenol A. In the present invention, all or some of a mother liquid stream is circulated to a flash rector through a bypass line after crystallization in a process of preparing bisphenol A so as to increase a conversion rate of bisphenol A in a reactor, reduce energy, and use a heating source of phenol to be discharged to an upper side of the flash reactor, and thus the reaction efficiency of the whole process can be increased.
摘要翻译： 提供了制备双酚A的装置和方法。在本发明中，在制备双酚A的过程中，通过旁路管将全部或一些母液流通过旁路管路循环，以增加转化率 双酚A在反应器中的速率降低，能够使用苯酚的加热源排出到反应器的上侧，能够提高整个反应的反应效率。
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公开(公告)号：US20230183156A1
公开(公告)日：2023-06-15
申请号：US17924625
申请日：2022-04-29
申请人： LG CHEM, LTD.
发明人： Sa Eun PARK , Tae Woo KIM , Byung Woo CHOI , Sung Kyu LEE
摘要： A method of preparing isopropyl alcohol including: supplying a feed stream including a propylene monomer and water to a reaction unit and reacting the propylene monomer and water to produce a reaction product including isopropyl alcohol, the propylene monomer, and the water; supplying a first discharge stream including a gaseous reaction product and a second discharge stream including a liquid reaction product from the reaction unit to a stripper; and in the stripper, circulating an upper discharge stream including the propylene monomer to the reaction unit and supplying a lower discharge stream including water and isopropyl alcohol to an isopropyl alcohol purification unit, where the first discharge stream is condensed by a first heat exchanger and supplied as a liquid phase to the stripper.
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公开(公告)号：US20200263095A1
公开(公告)日：2020-08-20
申请号：US16645647
申请日：2019-07-02
申请人： LG CHEM, LTD.
发明人： In Seop KIM , Seok Goo LEE , Sung Kyu LEE , Tae Woo KIM , Joon Ho SHIN
摘要： A method for quenching a pyrolysis product, including: supplying a discharge stream from a liquid decomposition furnace to a first quench tower; supplying an upper discharge stream from the first quench tower to a second quench tower; supplying a discharge stream from a first gas decomposition furnace to the second quench tower; and supplying a discharge stream from a second gas decomposition furnace to the second quench tower.
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公开(公告)号：US20200216373A1
公开(公告)日：2020-07-09
申请号：US16647828
申请日：2019-07-04
申请人： LG CHEM, LTD.
发明人： Tae Woo KIM , Sung Kyu LEE , In Seop KIM , Joon Ho SHIN , Yeon Uk CHOO
摘要： A method for preparing ethylene including: feeding a thermally cracked compressed stream to a first distillation apparatus selectively operating as a first deethanizer or a depropanizer; and feeding an overhead discharge stream of the first distillation apparatus to a second distillation apparatus. When the first distillation apparatus is operated as the first deethanizer, a bottom discharge stream of the second distillation apparatus is fed to a C2 separator. When the first distillation apparatus is operated as the depropanizer, the bottom discharge stream of the second distillation apparatus is passed through a third distillation apparatus and fed to the C2 separator.
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公开(公告)号：US20170225100A1
公开(公告)日：2017-08-10
申请号：US15500365
申请日：2016-06-30
申请人： LG CHEM, LTD.
发明人： Yeon Uk CHOO , Sung Kyu LEE , Tae Woo KIM , Joon Ho SHIN
摘要： The present application relates to a distillation device, and according to the distillation device of the present application, in first and second compounds being capable of forming an azeotrope, by introducing the second compound having a relatively high boiling point into a supply port located below the first compound having a relatively low boiling point, the first compound can be previously separated from the top of a first distillation column and the content of the first compound in the flow discharged from the bottom of the first distillation column can be minimized, and thus, as a moving route of the first compound is minimized, the second compound can be separated in high purity.
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