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Feasibility study of novel control method for crystals quality by applying ozonation to the production of crystalline particles

Research Project

Project/Area Number 19K15345
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 27010:Transport phenomena and unit operations-related
Research InstitutionGunma National College of Technology

Principal Investigator

KUDO Shoji  群馬工業高等専門学校, 物質工学科, 助教 (50735008)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords晶析操作 / 結晶特性 / オゾン処理 / テーラーメイド添加物 / 晶析 / オゾン添加タイミング / 結晶粒径 / 結晶形状 / 品質制御
Outline of Research at the Start

主にグリシン水溶液などの有機化合物の水溶液からの結晶製造を対象として、(300mLスケール程度の攪拌槽型晶析装置)で溶液にオゾン処理(バブリング)を施して冷却する結晶製造実験を行ない、オゾン処理、創製される添加物と結晶品質との関係を整理し、2019~2020年度の2年間で、(i)オゾン処理で創製される添加物が結晶品質に与える効果(検討内容:オゾン処理条件に応じて結晶品質がどのように変化するか)、(ii)オゾン処理で創製される添加物の結晶品質の作り分けへの応用可能性(検討内容:オゾン処理条件の調整でどの程度まで結晶品質を変更できるか )を明らかにすることを目指す。

Outline of Final Research Achievements

The application of ozone treatment to quality control of crystalline particles in crystallization operations was suggested, and its applicability was investigated.
For cooling crystallization, experiments were carried out in which ozone treatment was introduced by changing the profile such as the timing and duration time of the ozone addition. It was found that even if only ozone is added, the characteristics such as crystal particle size and crystal shape can be changed depending on the addition method such as addition timing and amount. Although limited, the feasibility of the novel method was shown for creating and controlling the characteristics of crystalline particles by introducing ozone treatment into the crystallization operation.

Academic Significance and Societal Importance of the Research Achievements

これまでに晶析分野でオゾン処理は積極的に活用されてこなかったが、本研究で晶析時のオゾン添加条件によって平均粒径や結晶形状などの結晶特性が変化することを示せた。すなわち、オゾン処理を応用した結晶品質の制御方法の可能性を限定的にではあるが示せた。結晶製品に限らず様々な製品製造に晶析プロセスが利用される。製品品質や製造プロセスに対する要求はより高度になるなか、より幅広く結晶特性を作り分けて制御する結晶製造技術の開発、発展は必須となる。本研究成果は、そのような結晶製造技術の開発に貢献するものであると考える。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results)

  • [Journal Article] Development of Rebaudioside D Polymorphs with Improved Solubility2020

    • Author(s)
      Urai Soichiro、Kudo Shoji、Takiyama Hiroshi
    • Journal Title

      Food Science and Technology Research

      Volume: 26 Issue: 1 Pages: 17-23

    • DOI

      10.3136/fstr.26.17

    • ISSN
      1344-6606, 1881-3984
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Initial Temperature and Slurry Density on Stable Crystallization Process of Xylitol Melt Containing Sorbitol2020

    • Author(s)
      Otgonnyam Gemgui、Kamakura Yoshimitsu、Kudo Shoji、Takiyama Hiroshi
    • Journal Title

      Food Science and Technology Research

      Volume: 26 Issue: 2 Pages: 235-238

    • DOI

      10.3136/fstr.26.235

    • NAID

      130007849669

    • ISSN
      1344-6606, 1881-3984
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of novel cascade type crystallizer for continuous production of crystalline particles2020

    • Author(s)
      Koyama Mana、Kudo Shoji、Amari Shuntaro、Takiyama Hiroshi
    • Journal Title

      Journal of Industrial and Engineering Chemistry

      Volume: 89 Pages: 111-114

    • DOI

      10.1016/j.jiec.2020.06.021

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Production of crystalline particles with high homogeneity in reaction crystallization by using pH-solubility-profile2019

    • Author(s)
      Ohyama Mitsuki、Kudo Shoji、Amari Shuntaro、Takiyama Hiroshi
    • Journal Title

      Journal of Industrial and Engineering Chemistry

      Volume: 75 Pages: 38-43

    • DOI

      10.1016/j.jiec.2019.03.003

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 晶析操作でのオゾン添加の結晶粒子群特性への効果2021

    • Author(s)
      工藤翔慈
    • Organizer
      化学工学会 第86年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] カルバマゼピン-サッカリン共結晶の溶媒和物に関する一考察2020

    • Author(s)
      工藤翔慈、周藤瑞季
    • Organizer
      化学工学会第51回秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] [優秀論文賞] Effect of Two Kinds of Supersaturation on Crystal Qualities during Cocrystallization2020

    • Author(s)
      西丸 萌々子、工藤 翔慈、滝山 博志
    • Organizer
      化学工学会第51回秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 非球形粒子の攪拌槽内構造物への衝突現象の解析2020

    • Author(s)
      千明知宏、工藤翔慈
    • Organizer
      化学工学会85年会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2022-01-27  

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