Gas-phase resistance to the vaporization of mercuric halides in high-temperature atmospheric gaseous condition

Hee Chul Yang, Joon Hyung Kim, Yongchil Seo, Yong Kang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Gas-phase resistances to the vaporization of three mercury halides into atmosphere at elevated temperatures were evaluated. Lab-scale vaporization experiments for mercuric bromide, mercuric iodide and mercuric chloride were performed and the results were analyzed to evaluate gas-phase resistance to vaporization of three mercuric halides using the vaporization and condensation model. Overall mass transfer coefficients, KG for the sample mercuric halides, were in the range between 4.8×10-6 and 1.6×10-5 g-mole sec-1 cm-2 atm-1 at the temperatures from the subliming to boiling temperatures and were much smaller than interfacial mass transfer coefficients, ki. It was estimated that resistance of pure gas-phase mass transfer is much larger than that of the phase transition between condensed and gas phases. It could be therefore said that gas-phase mass transfer coefficients, kG for mercuric halides, were nearly equal to overall mass transfer coefficient, KG which could be determined as a function of temperatures.

Original languageEnglish
Pages (from-to)261-265
Number of pages5
JournalKorean Journal of Chemical Engineering
Volume13
Issue number3
DOIs
Publication statusPublished - 1996 Jan 1

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Atmospheric temperature
Vaporization
Mass transfer
Gases
Mercuric Chloride
Temperature
Mercury
Boiling liquids
Condensation
Phase transitions
Experiments

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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title = "Gas-phase resistance to the vaporization of mercuric halides in high-temperature atmospheric gaseous condition",
abstract = "Gas-phase resistances to the vaporization of three mercury halides into atmosphere at elevated temperatures were evaluated. Lab-scale vaporization experiments for mercuric bromide, mercuric iodide and mercuric chloride were performed and the results were analyzed to evaluate gas-phase resistance to vaporization of three mercuric halides using the vaporization and condensation model. Overall mass transfer coefficients, KG for the sample mercuric halides, were in the range between 4.8×10-6 and 1.6×10-5 g-mole sec-1 cm-2 atm-1 at the temperatures from the subliming to boiling temperatures and were much smaller than interfacial mass transfer coefficients, ki. It was estimated that resistance of pure gas-phase mass transfer is much larger than that of the phase transition between condensed and gas phases. It could be therefore said that gas-phase mass transfer coefficients, kG for mercuric halides, were nearly equal to overall mass transfer coefficient, KG which could be determined as a function of temperatures.",
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Gas-phase resistance to the vaporization of mercuric halides in high-temperature atmospheric gaseous condition. / Yang, Hee Chul; Kim, Joon Hyung; Seo, Yongchil; Kang, Yong.

In: Korean Journal of Chemical Engineering, Vol. 13, No. 3, 01.01.1996, p. 261-265.

Research output: Contribution to journalArticle

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