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Patent Searching and Data


Title:
METHOD FOR PRODUCING CONCENTRATED CARBONATE AQUEOUS SOLUTION
Document Type and Number:
WIPO Patent Application WO/2021/054268
Kind Code:
A1
Abstract:
The present specification discloses a method for producing a concentrated carbonate aqueous solution. The present invention relates to a method for producing a concentrated carbonate aqueous solution, comprising a step of dewatering an aqueous solution of hydrogen carbonate with a salt blocking film to produce a concentrated aqueous solution of hydrogen carbonate, wherein the concentrated aqueous solution of hydrogen carbonate obtained in the above step is heated to thermally decompose the hydrogen carbonate into a carbonate, carbon dioxide, and water, and water is evaporated to obtain a concentrate of the carbonate aqueous solution.

Inventors:
NAKASUJI TAKEHIRO (JP)
SUZUTA TETSUYA (JP)
MATSUDA MASATO (JP)
SATO YUICHI (JP)
NAKAO SHINICHI (JP)
Application Number:
PCT/JP2020/034580
Publication Date:
March 25, 2021
Filing Date:
September 11, 2020
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C01D7/12; C07C319/20; C07C323/58
Domestic Patent References:
WO2018199292A12018-11-01
Foreign References:
JP2012201672A2012-10-22
CN106006682A2016-10-12
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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