The Library
Spontaneous emulsification of a metal drop immersed in slag due to dephosphorization : surface area quantification
Tools
Tools
Tools
Assis, Andre N., Warnett, Jason, Spooner, Stephen, Fruehan, Richard J., Williams, M. A. and Sridhar, Seetharaman. (2015) Spontaneous emulsification of a metal drop immersed in slag due to dephosphorization : surface area quantification. Metallurgical and Materials Transactions B, 46 (2). pp. 568-576. ISSN 1073-5615
Full text not available from this repository.
Official URL: http://dx.doi.org/10.1007/s11663-014-0248-z
Abstract
When a chemical reaction occurs between two immiscible liquids, mass transfer is continuously taking place at the liquid–liquid interface. Several studies have shown that if the species being exchanged between the two liquids are surface-active, a very pronounced decrease in interfacial tension can occur which can lead to a phenomenon called spontaneous emulsification. In steelmaking, this behavior has been observed for several reactions that involve the transfer of impurities from molten steel to a molten-oxide slag but little quantification has been made. This work focuses on spontaneous emulsification due to the dephosphorization of a Fe-P drop immersed in a basic oxygen furnace type slag. An Au-image furnace attached to a confocal scanning laser microscope was used to rapidly heat and cool the samples at different times, and X-ray computerized tomography was used to perform the surface area calculations of the samples where the slag/steel reaction was allowed to occur for distinct times. The results show that the surface area of the metal drop rapidly increases by over one order of magnitude during the first 60 seconds of the reaction while the chemical reaction is occurring at a fast rate. Once the reaction slows down, approximately after 60 seconds, the droplets start to coalesce back together minimizing the surface area and returning to a geometry close to its equilibrium shape.
| Item Type: | Journal Article | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
| Journal or Publication Title: | Metallurgical and Materials Transactions B | ||||||||||
| Publisher: | Springer New York LLC | ||||||||||
| ISSN: | 1073-5615 | ||||||||||
| Official Date: | April 2015 | ||||||||||
| Dates: |
|
||||||||||
| Volume: | 46 | ||||||||||
| Number: | 2 | ||||||||||
| Page Range: | pp. 568-576 | ||||||||||
| Identification Number: | 10.1007/s11663-014-0248-z | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||
| URI: | http://wrap.warwick.ac.uk/id/eprint/76977 |
Request changes or add full text files to a record
Actions (login required)
 |
View Item |
