A Study on Crystallization of Oxalic Acid in Batch Cooling Crystallizer

C. Srinivasakannan, R. Vasanthakumar, K. Iyappan, P. G. Rao

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A study on batch cooling crystallizer, to assess the effects of various cooling modes on the crystal size distribution, is attempted for oxalic acid. The linear cooling mode is found to give narrow crystal size distribution and higher crystal size as compared to controlled cooling modes. The effect of various operating quantities such as the seed ratio, type of agitator, agitation rates, are carried out with linear cooling mode. The increase in seed ratio is found to reduce the mean crystal size. For turbine type agitator, increase in the agitation rate beyond 140 rpm is found to widen the crystal size distribution and lower the mean crystal size, where as for anchor type agitator, agitation rate beyond 100 rpm is found to decrease mean crystal size.

Original languageBritish English
Pages (from-to)125-129
Number of pages5
JournalChemical and Biochemical Engineering Quarterly
Volume16
Issue number3
StatePublished - Sep 2002

Keywords

  • Batch crystallization
  • Crystal size distribution
  • Oxalic acid

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