| Publication Type |
Journal Article |
| School or College |
College of Mines & Earth Sciences |
| Department |
Metallurgical Engineering |
| Creator |
Miller, Jan D. |
| Other Author |
Kellar, J. J.; Cross, W. M.; Yalamanchili, M. R.; Young, C. A. |
| Title |
Surface phase transitions of adsorbed collector molecules as revealed by in-situ FT-IR/IRS spectroscopy |
| Date |
1993 |
| Description |
It has been shown by inspection of FT-IR/IRS spectra that the alkyl conformation of adsorbed collectors can be determined. The conformations of adsorbed collectors were interpreted in terms of bulk solution phases of the collectors. Such analysis was performed on the CaF2/oleate, A1203/SDS and KC1/octylamine flotation systems. It was found that each system has unique conformational behavior, depending upon variables such as adsorption density and temperature. For the CaF^oleate system, the adsorbed species resemble a coagel at room temperature. Raising the temperature of the chemisorbed species to 40° C caused the adsorbed oleate to become micellar. Liquid crystalline-adsorbed species were observed in the A12C»3/dodecylsulfate system at low adsorption densities. As the adsorption density increased, the adsorbed species resembled a coagel/liquid crystal mixture. In all cases, octylamine adsorbed by KC1 appeared micellar in nature. |
| Type |
Text |
| Publisher |
Society for Mining, Metallurgy, and Exploration |
| Volume |
10 |
| Issue |
2 |
| First Page |
75 |
| Last Page |
80 |
| Subject |
Oleates; Micellar; In situ analysis; Adsorption |
| Subject LCSH |
Adsorption; Surface chemistry; Micelles |
| Language |
eng |
| Bibliographic Citation |
Miller, J. D., Kellar, J. J., Cross, W. M., Yalamanchili, M. R., & Young, C. A. (1993). Surface phase transitions of adsorbed collector molecules as revealed by in-situ FT-IR/IRS spectroscopy. Minerals and Metallurgical Processing, 10(2), 75-80. |
| Format Medium |
application/pdf |
| Format Extent |
3,636,315 Bytes |
| Identifier |
ir-main,4699 |
| ARK |
ark:/87278/s6pr8dgk |
| Setname |
ir_uspace |
| ID |
706054 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6pr8dgk |
