Method For Preparing Acrylic Acid

Abstract: The present invention relates to a method for preparing an acrylic acid, and provides a method for preparing a high-purity acrylic acid by removing, from a reaction product stream prepared by a dehydration reaction of an aqueous lactic acid solution, byproducts using an extraction tower, an extractant recovery tower, a first separation tower, a second separation tower, and a purification tower.

Patent Information

Application #

Filing Date

13 June 2023

Publication Number

06/2024

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Applicants

LG CHEM, LTD.

128, Yeoui-daero Yeongdeungpo-Gu Seoul 07336

Inventors

1. LYU, Byeong Gil

LG Chem Research Park, 188, Munji-ro Yuseong-Gu, Daejeon 34122

2. KIM, Mi Kyung

LG Chem Research Park, 188, Munji-ro Yuseong-Gu, Daejeon 34122

3. KIM, Eun Kyo

LG Chem Research Park, 188, Munji-ro Yuseong-Gu, Daejeon 34122

4. KIM, Hye Bin

LG Chem Research Park, 188, Munji-ro Yuseong-Gu, Daejeon 34122

Specification

Documents

Application Documents

#	Name	Date
1	202317040221-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [13-06-2023(online)].pdf	2023-06-13
2	202317040221-STATEMENT OF UNDERTAKING (FORM 3) [13-06-2023(online)].pdf	2023-06-13
3	202317040221-PROOF OF RIGHT [13-06-2023(online)].pdf	2023-06-13
4	202317040221-PRIORITY DOCUMENTS [13-06-2023(online)].pdf	2023-06-13
5	202317040221-POWER OF AUTHORITY [13-06-2023(online)].pdf	2023-06-13
6	202317040221-FORM 1 [13-06-2023(online)].pdf	2023-06-13
7	202317040221-DRAWINGS [13-06-2023(online)].pdf	2023-06-13
8	202317040221-DECLARATION OF INVENTORSHIP (FORM 5) [13-06-2023(online)].pdf	2023-06-13
9	202317040221-COMPLETE SPECIFICATION [13-06-2023(online)].pdf	2023-06-13
10	202317040221-FORM 3 [27-09-2023(online)].pdf	2023-09-27
11	202317040221-FORM 18 [23-04-2025(online)].pdf	2025-04-23