公开(公告)号：US20250033987A1

公开(公告)日：2025-01-30

申请号：US18570596

申请日：2022-11-29

Applicant: LG CHEM, LTD.

Inventor： Sang Won HAN ,  Sangbum AHN ,  Yongbok JEONG ,  Woochul JUNG ,  Si Min KIM ,  Jimyeong KIM ,  Taeho KIM ,  Donggyun KANG

IPC: C01F11/46 ,  C12N1/20 ,  C12N9/02 ,  C12N9/10 ,  C12N9/88 ,  C12N15/70

Abstract: The present invention relates to a process of recovering an alkali metal sulfate, comprising: forming an organic acid fermentation liquid containing an alkali metal salt of organic acid; and adding sulfuric acid to the organic acid fermentation liquid to form and recover an alkali metal sulfate, wherein the alkali metal sulfate has a radioactivity concentration index of 1 or less, and to an alkali metal sulfate crystal comprising a predetermined peak in an X-ray diffraction spectrum (XRD) and having a radioactivity concentration index of 1 or less.

公开(公告)号：US20240376287A1

公开(公告)日：2024-11-14

申请号：US18688291

申请日：2023-05-31

Applicant: LG CHEM, LTD.

Inventor： Si Min KIM ,  Donggyun KANG ,  Woochul JUNG

IPC: C08J11/12 ,  B01J31/12 ,  C08J11/16

Abstract: The present invention provides a method for producing acrylic acid and/or glycolide comprising thermally decomposing a hydroxyalkanoate copolymer in the presence of a catalyst containing tin.

公开(公告)号：US20240383837A1

公开(公告)日：2024-11-21

申请号：US18689591

申请日：2023-05-31

Applicant: LG CHEM, LTD.

Inventor： Si Min KIM ,  Donggyun KANG ,  Woochul JUNG ,  Yongbok JEONG

IPC: C07C51/44 ,  C08J11/16

Abstract: The present invention provides a method for producing acrylic acid comprising thermally decomposing a poly(3-hydroxypropionate) in the presence of a predetermined transition metal oxide to produce acrylic acid.

公开(公告)号：US20240279692A1

公开(公告)日：2024-08-22

申请号：US18571983

申请日：2022-11-29

Applicant: LG CHEM, LTD.

Inventor： Sang Won HAN ,  Taeho KIM ,  Yongbok JEONG ,  Sangbum AHN ,  Woochul JUNG ,  Donggyun KANG ,  Si Min KIM ,  Jimyeong KIM ,  Yongju BANG ,  Jeong Eun KIM ,  Jae Hoon CHOE

IPC: C12P7/42

CPC classification number: C12P7/42

Abstract: The present invention relates to a process of recovering alkali metal salt hydrate and 3-hydroxypropionic acid, comprising: forming and separating 3-hydroxypropionic acid salt crystal from a concentrate containing 3-hydroxypropionic acid in the presence of an alkali metal salt; and adding an acid to the aqueous solution containing the separated 3-hydroxypropionic acid salt crystal to form and separate an alkali metal salt hydrate and 3-hydroxypropionic acid.

公开(公告)号：US20240409478A1

公开(公告)日：2024-12-12

申请号：US18699021

申请日：2023-07-20

Applicant: LG CHEM, LTD.

Inventor： Si Min KIM ,  Donggyun KANG ,  Woochul JUNG

IPC: C07C1/213 ,  C08J11/12

Abstract: The present invention provides a method of manufacturing butadiene comprising thermally decomposing a polyester containing a repeating unit derived from 1,4-butanediol or a polymer blend containing the same to manufacture butadiene.

公开(公告)号：US20240246945A1

公开(公告)日：2024-07-25

申请号：US17768043

申请日：2020-10-29

Applicant: LG CHEM, LTD.

Inventor： Kyung Hoon KIM ,  Si Min KIM ,  Hae Kwang LEE ,  Hye Ran MOON ,  Jin ll HWANG

IPC: C07D413/14 ,  A01N43/82 ,  A01N43/84 ,  A01N43/90 ,  A01P7/04 ,  C07D417/14 ,  C07D498/10

CPC classification number: C07D413/14 ,  A01N43/82 ,  A01N43/84 ,  A01N43/90 ,  A01P7/04 ,  C07D417/14 ,  C07D498/10

Abstract: The present invention provides a compound represented by chemical formula I and a control composition comprising same.