Extraction of 2,3-Butanediol with Aqueous Two-Phase Systems Formed by Water-Miscible Organic Solvents and Inorganic Salts

• MATSUMOTO Michiaki

  Department of Chemical Engineering and Materials Science, Doshisha University

• OKUNO Ryosuke

  Department of Chemical Engineering and Materials Science, Doshisha University

• KONDO Kazuo

  Department of Chemical Engineering and Materials Science, Doshisha University

抄録

2,3-Butanediol is one of the bulk chemicals that exhibits a wide range of potential uses in cosmetics and transport fuels as well as being a precursor of synthetic rubbers. During the last few decades, considerable efforts have been made to improve the production of 2,3-butanediol from fermentation. However, major difficulties still exist in downstream processing because 2,3-butanediol has a high boiling point and a high affinity for water. In this study, aqueous two phase systems composed of water-miscible solvents and salts could be used to extract 2,3-butanediol from a model solution. We used t-butanol, tetrahydrofuran and 2-propanol as water-miscible solvents, and dipotassium hydrogen phosphate, tripotassium phosphate, potassium carbonate, potassium fluoride and tripotassium citrate as salts. The phase separation abilities of water-miscible solvents and the salting-out abilities of salts were evaluated by the difference in the binodal curves and salting-out of 2,3-butanediol. t-Butanol and tetrahydrofuran showed high phase separation abilities, and potassium carbonate showed as high a salting-out ability as conventional phosphate salts. The concentration in the top phase and recovery ratio of 2,3-butanediol reached 184.3 g/L and 92.2%, respectively, when the system was composed of tetrahydrofuran and potassium carbonate. This process provided the possibility of a simple and economical process for the separation of 2,3-butanediol from fermentation broth.

収録刊行物

• Solvent Extraction Research and Development, Japan

  Solvent Extraction Research and Development, Japan 21 (2), 181-190, 2014

  日本溶媒抽出学会

キーワード

• General Chemical Engineering
• General Chemistry

詳細情報

• CRID: 1390282680717847680
• NII論文ID: 130004669676
• NII論文ID: 40020056658
• NII書誌ID: AA11114608
• DOI: 10.15261/serdj.21.181
• ISSN: 21884765
• ISSN: 13417215
• NDL書誌ID: 025441251
• Web Site: http://id.ndl.go.jp/bib/025441251
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025441251
• Web Site: https://www.jstage.jst.go.jp/article/serdj/21/2/21_181/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
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