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Title:
PROCESS OF RECOVERING 3-HYDROXYPROPIONIC ACID AND SLURRY COMPOSITION COMPRISING 3-HYDROXYPROPIONIC ACID
Document Type and Number:
WIPO Patent Application WO/2023/096439
Kind Code:
A1
Abstract:
The present invention relates to a process of recovering 3-hydroxypropionic acid, the method comprising the steps of: forming crystals of 3-hydroxypropionate in a concentrate comprising 3-hydroxypropionic acid in the presence of an alkali metal salt; preparing a solution including the crystals of 3-hydroxypropionate separated from the concentrate; forming a precipitate by stirring an acid and the solution including the crystals of 3-hydroxypropionate; and subjecting the precipitate to first washing, and a slurry composition comprising the precipitate prepared by the process of recovering 3-hydroxypropionic acid, and 3-hydroxypropionic acid.

Inventors:
KIM JEONG EUN (KR)
BANG YONGJU (KR)
CHOE JAE HOON (KR)
KANG DONGGYUN (KR)
CHO ARA (KR)
JUNG WOOCHUL (KR)
HAN SANG WON (KR)
KIM TAEHO (KR)
Application Number:
PCT/KR2022/018943
Publication Date:
June 01, 2023
Filing Date:
November 28, 2022
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C07C59/01; C07C51/43; C07C51/48; C12P7/52
Domestic Patent References:
WO2015166098A12015-11-05
Foreign References:
US8883464B22014-11-11
KR20200051375A2020-05-13
Other References:
J. URBANUS; C.P.M. ROELANDS; D. VERDOES; J.H. TER HORST: "Intensified crystallization in complex media: Heuristics for crystallization of platform chemicals", CHEMICAL ENGINEERING SCIENCE, vol. 77, 13 February 2012 (2012-02-13), GB , pages 18 - 25, XP028500286, ISSN: 0009-2509, DOI: 10.1016/j.ces.2012.02.019
MCDONALD MATTHEW A, HOSSEIN SALAMI, PATRICK R. HARRIS, COLTON E. LAGERMAN, XIAOCHUAN YANG, ANDREAS S. BOMMARIUS, MARTHA A. GROVER,: "Reactive crystallization: a review", REACTION CHEMISTRY & ENGINEERING, vol. 6, no. 3, 1 March 2021 (2021-03-01), pages 364 - 400, XP055951360, ISSN: 2058-9883, DOI: 10.1039/D0RE00272K
SUMITRA RAMACHANDRAN , PIERRE FONTANILLE , ASHOK PANDEY , CHRISTIAN LARROCHE: "Gluconic acid: Properties, applications and microbial production", FOOD TECHNOLOGY AND BIOTECHNOLOGY, vol. 44, no. 2, 1 April 2006 (2006-04-01), Croatia , pages 185 - 195, XP002670029, ISSN: 1330-9862
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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