Effective separation of succinic acid by combined crystallization

Eun Hye Kim, Seong Sik You, Jeong Won Kang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Succinic acid, which is widely used as a building block chemical, can be produced from either petroleum or renewable resources. Bio-based production of succinic acid requires several purification steps, and the yield of any particular separation method is an important factor in facilitating an economic design. Crystallization is a common method for the purification of succinic acid, and several driving forces can be used to generate solubility changes in the solution. In this work, three driving forces of crystallization - cooling, acidification, and salting out - were examined individually and combined to achieve maximum yield from a solution of succinic acid. It was found that combined crystallization can significantly improve the yield (97.08%) compared with conventional cooling crystallization (84.31%) or acidification (66-67%). Additionally, a basic kinetic study was performed, and a total of 7 minutes of batch operation was sufficient to produce the maximum amount of crystals.

Original languageEnglish
Pages (from-to)204-209
Number of pages6
JournalKorean Journal of Chemical Engineering
Issue number1
Publication statusPublished - 2018 Jan 1


  • Acidification
  • Cooling Crystallization
  • Salting-out Crystallization
  • Succinic Acid

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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