Title:
PRODUCTION METHOD FOR AMINO ACID-CONTAINING HYDROTALCITE
Document Type and Number:
WIPO Patent Application WO/2024/062907
Kind Code:
A1
Abstract:
The present invention provides a novel production method which is for amino acid-containing hydrotalcite and by which the amount of an alkaline solution used can be reduced, and amino acid-containing hydrotalcite having stable quality can be obtained even when a reused amino acid aqueous solution is used as a raw material. The present disclosure is a production method for amino acid-containing hydrotalcite. The production method comprises step (A), a solution preparation step, and a generation step. Step (A) is a step for separating a slurry containing first amino acid-containing hydrotalcite and a dissolved amino acid into first amino acid-containing hydrotalcite and a dissolved amino acid-containing solution. The solution preparation step is a step for preparing a slurry solution by mixing a composite metal oxide with an amino acid aqueous solution derived from the dissolved amino acid-containing solution separated from the slurry after step (A). The generation step is a step for generating second amino acid-containing hydrotalcite by heating the slurry solution.
Inventors:
SUGIYAMA HIROYUKI (JP)
Application Number:
PCT/JP2023/032195
Publication Date:
March 28, 2024
Filing Date:
September 04, 2023
Export Citation:
Assignee:
SETOLAS HOLDINGS INC (JP)
International Classes:
C01F7/785; C09C3/00
Foreign References:
| JP2005089269A | 2005-04-07 |
Other References:
YU JINGFANG, BUFFET JEAN-CHARLES, O’HARE DERMOT: "Aspect Ratio Control of Layered Double Hydroxide Nanosheets and Their Application for High Oxygen Barrier Coating in Flexible Food Packaging", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 12, no. 9, 4 March 2020 (2020-03-04), US , pages 10973 - 10982, XP093148897, ISSN: 1944-8244, DOI: 10.1021/acsami.9b21986
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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