Calcium Lactate Pentahydrate Crystallization in the Presence of Pentanoic Acid

Kiran-Yildirim B., Titiz-Sargut S., Sayan P.

CHEMICAL ENGINEERING & TECHNOLOGY, vol.41, pp.1244-1251, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 41
  • Publication Date: 2018
  • Doi Number: 10.1002/ceat.201700672
  • Journal Name: CHEMICAL ENGINEERING & TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1244-1251
  • Marmara University Affiliated: Yes

Abstract

Calcium lactate crystallization was investigated in the presence of pentanoic acid in a mixed-suspension mixed-product removal (MSMPR)-type crystallizer. Filtration rate measurements were carried out to define the effect of pentanoic acid on the filtration characteristics of calcium lactate pentahydrate crystals. The average particle size, length-to-width ratio, and morphologies of calcium lactate pentahydrate crystals were also determined and examined as a function of pentanoic acid concentrations. The zeta potential of calcium lactate pentahydrate crystals was measured. Thermogravimetric and differential thermal analysis (TGA-DTA) as well as X-ray diffraction (XRD) were performed and Coats and Redfern's method was used to verify the kinetic parameters in the dehydration steps observed in the TGA curves.