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公开(公告)号：US20150306517A1
公开(公告)日：2015-10-29
申请号：US14443591
申请日：2014-01-16
Applicant: LG CHEM, LTD.
Inventor： Sung Kyu LEE , Joon Ho SHIN , Jong Ku LEE
CPC classification number: B01D3/141 , B01J19/24 , C07C29/80 , C07C31/04 , C07C31/125
Abstract: The present application relates to a device and a method for preparing alkanol. According to the present application, energy can be reduced when preparing alkanol by reducing the amount of steam used in a reboiler or cooling water used in a condenser and a cooler, and steam generated from a heat exchanger for column top stream can be utilized in a variety of fields. Also, highly pure alkanol can be prepared according to the present application.
Abstract translation: 本申请涉及一种制备链烷醇的装置和方法。 根据本申请，通过减少在冷凝器和冷却器中使用的再沸器或冷却水中使用的蒸汽量来制备链烷醇时能够减少能量，并且可以在塔顶流的热交换器中产生的蒸汽用于 各种领域。 此外，根据本申请可以制备高纯度的链烷醇。
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公开(公告)号：US20140076709A1
公开(公告)日：2014-03-20
申请号：US14089373
申请日：2013-11-25
Applicant: LG CHEM, LTD.
Inventor： Sung Kyu LEE , Joon Ho SHIN , Jong Ku LEE , Sung Kyun KIM
IPC: B01D3/14 , C01B33/107
CPC classification number: B01D3/141 , B01D3/143 , B01D3/324 , C01B33/10778 , Y10S203/20
Abstract: A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy.
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公开(公告)号：US20230174453A1
公开(公告)日：2023-06-08
申请号：US17921693
申请日：2021-10-27
Applicant: LG CHEM, LTD.
Inventor： Hyebin KIM , Mi Kyung KIM , Eunkyo KIM , Joon Ho SHIN
Abstract: Provided is a process for producing acrylic acid, wherein the process comprises a first step and a second step in which a first absorbent is added to a reaction product of a bio-material and cooled to separate a first low-boiling-point material including acetaldehyde (ACHO) and a first high-boiling-point material including acrylic acid (AA). The process is capable of producing high-purity acrylic acid at high yield, and acetaldehyde is produced as by-product along with the reaction product of the bio-material. The process includes separating the acetaldehyde produced as by-product into a high-purity product at high yield.
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公开(公告)号：US20220009868A1
公开(公告)日：2022-01-13
申请号：US17413790
申请日：2020-08-11
Applicant: LG CHEM, LTD.
Inventor： Min Suk KANG , Sang Beom LEE , Joon Ho SHIN
Abstract: The present disclosure provides a method for decomposing a phenolic by-product, the method including: a step S10 of injecting and mixing a bisphenol A by-product produced in a bisphenol A production process, a mixed by-product stream of phenol by-products produced in a phenol production process, a decomposition apparatus side discharge stream, and a process water stream in a mixing apparatus; a step S20 of injecting a mixing apparatus discharge stream discharged from the mixing apparatus into a phase separation apparatus and phase-separating the mixing apparatus discharge stream into an oil-phase stream and a liquid-phase stream; a step S30 of feeding the oil-phase stream, which is phase-separated in the step S20 and discharged from the phase separation apparatus, to a decomposition apparatus to decompose the oil-phase stream; and a step S40 of circulating the decomposition apparatus side discharge stream obtained by the decomposition in the step S30 to the mixing apparatus in the step S10.
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公开(公告)号：US20210130256A1
公开(公告)日：2021-05-06
申请号：US16478802
申请日：2018-08-17
Applicant: LG CHEM, LTD.
Inventor： Min Suk KANG , Sang Beom LEE , Sung Ho LEE , Joon Ho SHIN , Chul Han PARK
Abstract: In a process of decomposing byproducts of a phenol production process using a reactive distillation column in which a reactor and a distillation column are integrated, since acetophenone is mixed with tar recovered to a lower part of the reactive distillation column and transferred, viscosity of the tar may be lowered so that the tar may be transferred at room temperature, and since the reactive distillation column may be operated at 0.5 to 3 bar, an operating temperature of the reactive distillation column is low as compared with a method of separating acetophenone by pressurization with high pressure, significantly reducing an operation cost of a heater required for a reaction. Also, since acetophenone is separately recovered at a position of 25 to 90% of a total number of stages in the reactive distillation column, recovery of an active ingredient may be enhanced.
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Patent Agency Ranking
公开(公告)号：US20200263095A1
公开(公告)日：2020-08-20
申请号：US16645647
申请日：2019-07-02
Applicant: LG CHEM, LTD.
Inventor： In Seop KIM , Seok Goo LEE , Sung Kyu LEE , Tae Woo KIM , Joon Ho SHIN
Abstract: 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
Applicant: LG CHEM, LTD.
Inventor： Tae Woo KIM , Sung Kyu LEE , In Seop KIM , Joon Ho SHIN , Yeon Uk CHOO
Abstract: 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：US20180154278A1
公开(公告)日：2018-06-07
申请号：US15579507
申请日：2016-06-07
Applicant: LG CHEM, LTD.
Inventor： Sung Kyu LEE , Joon Ho SHIN
Abstract: The present application relates to a distillation device and a distillation method, and according to the distillation device of the present application, it is possible to minimize the energy losses that occur in the refining process of the raw material containing the monomer and the solvent used in the polymerization process of the thermoplastic elastomer and to reduce the installation cost of the distillation device more than the case of refinement with two distillation columns, and thus the process economics may be improved.
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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
Applicant: LG CHEM, LTD.
Inventor： Yeon Uk CHOO , Sung Kyu LEE , Tae Woo KIM , Joon Ho SHIN
Abstract: 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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公开(公告)号：US20170044081A1
公开(公告)日：2017-02-16
申请号：US15304017
申请日：2015-05-22
Applicant: LG CHEM, LTD.
Inventor： Sung Kyun KIM , Sung Kyu LEE , Joon Ho SHIN
CPC classification number: C07C7/04 , B01D3/141 , B01D3/143 , C07B63/00 , C07C15/085
Abstract: The present application relates to an apparatus and method for purifying cumene. The apparatus and method for purifying cumene according to the present application can reduce the amount of energy consumption which occurs during purification processes and can provide an apparatus and method capable of efficiently purifying cumene.
Abstract translation: 本申请涉及用于净化枯烯的装置和方法。 根据本申请的净化异丙基苯的装置和方法可以减少净化过程中发生的能量消耗量，并且可以提供能够有效地净化枯烯的装置和方法。
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