Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study on the Sweating Process for High Purification of p-Dioxanone

파라디옥사논의 고순도 정제를 위한 발한(sweating) 공정에 관한 연구

  • Kim, Sung-Il (R&D center, Samchun Pure Chemical Ind. Co., LTD) ;
  • Chun, Suk-Keun (R&D center, Samchun Pure Chemical Ind. Co., LTD) ;
  • Park, Du-Goan (R&D center, Samchun Pure Chemical Ind. Co., LTD) ;
  • Park, Keun-Ho (Department of Chemical engineering, Chang Won National University) ;
  • Park, So-Jin (Department of Chemical and Engineering, Chung Nam National University) ;
  • Kim, Chul-Ung (Chemical Process and Engineering Center, Korea Research Institute of Chemical Technology)
  • 김성일 (삼전순약공업 중앙연구소) ;
  • 전석근 (삼전순약공업 중앙연구소) ;
  • 박두곤 (삼전순약공업 중앙연구소) ;
  • 박근호 (창원대학교 화공시스템공학과) ;
  • 박소진 (충남대학교 화학공학과) ;
  • 김철웅 (한국화학연구원 미세공정기술연구센터)
  • Published : 2007.06.30
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Abstract

As an additional high purification method of p-dioxanone monomer for a high molecular weight polymer, the sweating operation of crystalline layer obtained by layered melt crystallization from p-dioxanone-diethylene glycol system was studied. Purity and yield of p-dioxanone crystal depended mainly on the sweating temperature and sweating time. Increasing sweating time and sweating temperature, the purity of p-dioxanone crystal increase, whereas the yield of that decrease, respectively. Through the optimization of sweating operation, p-dioxanone crystal can be upgraded to very high purity over 99.9 % suited to monomer for polymerization.

Keywords

References

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