Title:
PROCESS FOR RECOVERING ALKALI METAL SULFATE
Document Type and Number:
WIPO Patent Application WO/2023/096461
Kind Code:
A1
Abstract:
The present invention relates to a process for recovering an alkali metal sulfate, comprising the steps of: forming an organic acid fermentation broth containing an alkali metal salt of an organic acid; and forming and recovering an alkali metal sulfate by adding a sulfuric acid to the organic acid fermentation broth, wherein the alkali metal sulfate has a radioactivity concentration index of 1 or less, and to an alkali metal sulfate having a predetermined X-ray diffraction spectrum (XRD) peak and a radioactivity concentration index of 1 or less.
Inventors:
HAN SANG WON (KR)
AHN SANGBUM (KR)
JEONG YONGBOK (KR)
JUNG WOOCHUL (KR)
KIM SI MIN (KR)
KIM JIMYEONG (KR)
KIM TAEHO (KR)
KANG DONGGYUN (KR)
AHN SANGBUM (KR)
JEONG YONGBOK (KR)
JUNG WOOCHUL (KR)
KIM SI MIN (KR)
KIM JIMYEONG (KR)
KIM TAEHO (KR)
KANG DONGGYUN (KR)
Application Number:
PCT/KR2022/019074
Publication Date:
June 01, 2023
Filing Date:
November 29, 2022
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C07C59/01; C01F11/46; C12P3/00; C12P7/52
Domestic Patent References:
| WO2016146721A1 | 2016-09-22 | |||
| WO2020137974A1 | 2020-07-02 |
Foreign References:
| KR20210012270A | 2021-02-03 | |||
| KR20080081347A | 2008-09-09 | |||
| KR20180036635A | 2018-04-09 | |||
| KR20200051375A | 2020-05-13 |
Other References:
ECON, ENVIRON, GEOL., vol. 44, no. 1, 2011, pages 37 - 48
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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