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公开(公告)号：US11111203B2
公开(公告)日：2021-09-07
申请号：US16838593
申请日：2020-04-02
Applicant: LG CHEM, LTD.
Inventor： Hyun Kyu Kim , Sung Kyu Lee , Jeong Ju Moon , Hyoung Jun , Chan Hyu Jin
Abstract: The present disclosure relates to a method and a system for manufacturing an ester-based composition which are characterized in sequentially operating a plurality of batch reactors, and since an ester-based composition is semi-continuously manufactured, the productivity is high and the stability of a batch reactor is secured.
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公开(公告)号：US20210355068A1
公开(公告)日：2021-11-18
申请号：US17443772
申请日：2021-07-27
Applicant: LG CHEM, LTD.
Inventor： Hyun Kyu Kim , Sung Kyu Lee , Jeong Ju Moon , Hyoung Jun , Chan Hyu Jin
Abstract: The present disclosure relates to a method and a system for manufacturing an ester-based composition which are characterized in sequentially operating a plurality of batch reactors, and since an ester-based composition is semi-continuously manufactured, the productivity is high and the stability of a batch reactor is secured.
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公开(公告)号：US11021432B2
公开(公告)日：2021-06-01
申请号：US16838816
申请日：2020-04-02
Applicant: LG CHEM, LTD.
Inventor： Hyun Kyu Kim , Sung Kyu Lee , Hyoung Jun , Chan Hyu Jin , Jeong Ju Moon , Joo Ho Kim
Abstract: The present disclosure relates to a system and a method for continuously purifying a reaction product of esterification, where the system includes a neutralizer, a distiller, and a product purifier. Through the present system and the method, it is possible to perform a continuous purification process efficiently, and to reduce lower alcohol wastewater generated during purification.
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公开(公告)号：US11975991B2
公开(公告)日：2024-05-07
申请号：US17604952
申请日：2020-07-01
Applicant: LG CHEM, LTD.
Inventor： Yeon Uk Choo , Sung Kyu Lee , Hyun Kyu Kim , Chan Hyu Jin , Hyoung Jun , Jin Sung Park
CPC classification number: C02F1/40 , B01D17/0208 , B01D17/0211 , B01D21/0018 , B01D21/003 , B01D21/02 , B01D21/10 , B01D21/2461 , C07C67/56
Abstract: A neutralization/water separation device for an esterified product including: a neutralization tank in which a crude product mixture containing alcohol and an ester compound, a neutralizing agent, and water are put to produce a neutralized mixture; a water separation tank disposed below the neutralization tank to divide the neutralization mixture into a floating layer and an aqueous layer; a partition wall extending downward from a ceiling of the water separation tank to provide a lower passage in the water separation tank; and a transfer line that transfers the neutralized mixture from the neutralization tank to the water separation tank, where the water separation tank includes: a first water separation part into which the neutralized mixture is introduced from the neutralization tank through the transfer line; and a second water separation part into which the neutralized mixture is introduced from the first water separation part through the lower passage, where the first water separation part and the second water separation part are partitioned by the partition wall.
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公开(公告)号：US11840510B2
公开(公告)日：2023-12-12
申请号：US17443781
申请日：2021-07-27
Applicant: LG CHEM, LTD.
Inventor： Hyun Kyu Kim , Sung Kyu Lee , Hyoung Jun , Chan Hyu Jin , Jeong Ju Moon , Joo Ho Kim
IPC: C07C67/08 , C07C67/02 , C07C67/54 , C07C67/58 , B01J19/00 , B01D3/14 , B01J8/04 , C07C67/03 , B01J4/00
CPC classification number: C07C67/08 , B01D3/14 , B01J8/04 , B01J19/0013 , B01J19/0046 , B01J19/0053 , C07C67/02 , C07C67/03 , C07C67/58 , B01J4/008 , B01J2219/0004 , B01J2219/00038 , B01J2219/00051 , B01J2219/00159 , B01J2219/00186
Abstract: The present disclosure relates to a manufacturing system and a manufacturing method which are capable of continuously manufacturing an ester-based composition, and has a technical feature of being capable of manufacturing an ether-based composition continuously, economically, and efficiently.
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Patent Agency Ranking
公开(公告)号：US11104636B2
公开(公告)日：2021-08-31
申请号：US16838279
申请日：2020-04-02
Applicant: LG CHEM, LTD.
Inventor： Hyun Kyu Kim , Sung Kyu Lee , Hyoung Jun , Chan Hyu Jin , Jeong Ju Moon , Joo Ho Kim
Abstract: The present disclosure relates to a manufacturing system and a manufacturing method which are capable of continuously manufacturing an ester-based composition, and has a technical feature of being capable of manufacturing an ether-based composition continuously, economically, and efficiently.
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公开(公告)号：US12290769B2
公开(公告)日：2025-05-06
申请号：US17603859
申请日：2020-07-02
Applicant: LG CHEM, LTD.
Inventor： Jae Hun Jeong , Sung Kyu Lee , Yeon Uk Choo , Hyoung Jun , Hyun Kyu Kim , Chan Hyu Jin , Jin Sung Park
Abstract: The present disclosure relates to a diester-based material production unit including a reaction device in which an esterification reaction of dicarboxylic acid and a primary alcohol is performed, a column in which the gas-liquid separation of the primary alcohol and the water introduced is performed, a heat exchanger installed on a gas phase line of the column to remove heat of the gas phase line, a flash drum in which separation of a liquid phase and a gas phase is performed in the mixture stream including the primary alcohol and the water, a condenser installed on the flash drum upper line, and a layer separator in which the layer separation of a mixture of a liquefied primary alcohol and water into an organic layer and an aqueous layer is performed, wherein one or more lines through which recirculated primary alcohol from the flash drum and the layer separator flows are connected to an upper portion of the column. According to the present invention, a coolant usage amount can be reduced and a rheological problem can be eliminated since a liquid phase and a gas phase coexist in a pipe.
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8.发明授权公开(公告)号：US11794162B2
公开(公告)日：2023-10-24
申请号：US17600284
申请日：2020-07-02
Applicant: LG CHEM, LTD.
Inventor： Jae Hun Jeong , Sung Kyu Lee , Yeon Uk Choo , Hyoung Jun , Chan Hyu Jin
CPC classification number: B01J19/0013 , B01D3/143 , B01J19/245 , B01J2219/00074
Abstract: The present disclosure relates to a heat exchange system which is capable of saving energy consumed in a whole process by exchanging heat of different streams from each other, included in a continuous preparation system of a diester-based composition.
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公开(公告)号：US20200317600A1
公开(公告)日：2020-10-08
申请号：US16838593
申请日：2020-04-02
Applicant: LG CHEM, LTD.
Inventor： Hyun Kyu Kim , Sung Kyu Lee , Jeong Ju Moon , Hyoung Jun , Chan Hyu Jin
Abstract: The present disclosure relates to a method and a system for manufacturing an ester-based composition which are characterized in sequentially operating a plurality of batch reactors, and since an ester-based composition is semi-continuously manufactured, the productivity is high and the stability of a batch reactor is secured.
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公开(公告)号：US12186729B2
公开(公告)日：2025-01-07
申请号：US17600889
申请日：2020-07-02
Applicant: LG CHEM, LTD.
Inventor： Yeon Uk Choo , Sung Kyu Lee , Joon Ho Shin , Hyoung Jun , Chan Hyu Jin
IPC: B01J19/00 , B01D17/12 , B01J19/24 , B01J19/26 , C02F1/26 , C07C67/03 , C07C67/08 , C07C67/52 , C07C67/58
Abstract: The present disclosure relates to a preparation system and a preparation method of a diester-based composition. A first alcohol which is a reaction raw material is added to waste water as an extracting agent, and layer separation is performed to separate a second alcohol which is another reaction raw material in the waste water. Accordingly, the amount of alcohol discharged as waste water can be reduced, and an eco-friendly process operation is possible. In addition, it is economical and efficiency to use the alcohol separated again as a reaction raw material.
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