Experimental Determination of the Minimum Agitation Speed for Complete Liquid-Liquid Dispersion in Mechanically Agitated Vessels

Piero M. Armenante, Huang Yu-Tsang

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

A new method was developed to experimentally determine the minimum agitation speed for complete dispersion of two immiscible liquids in stirred vessels. The method consists of taking samples from the liquid mixture at different agitation speeds and plotting the volumetric fraction of the dispersed phase vs the agitation speed. In correspondence of the visually observed minimum agitation speed, the typical plot showed a significant change in slope or a maximum point. The plots were analyzed with a mathematical method to unequivocally determine the minimum agitation speed value. A comparison between the values so obtained and those obtained with the visual observation method showed an excellent agreement. This approach is independent of sampling point position and type of agitation. No isokinetic sampling is required. The proposed method is expected to replace the visual observation approach especially in large scale, closed, industrial reactors where the visual method cannot be used.

Original languageEnglish (US)
Pages (from-to)1398-1406
Number of pages9
JournalIndustrial and Engineering Chemistry Research
Volume31
Issue number5
DOIs
StatePublished - May 1 1992

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Experimental Determination of the Minimum Agitation Speed for Complete Liquid-Liquid Dispersion in Mechanically Agitated Vessels'. Together they form a unique fingerprint.

Cite this