HO (III) SOLVENT SUBLATION FROM DILUTE AQUEOUS SOLUTIONS BY SODIUM DODECYL SULFATE

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-56-8 / ISSN 1314-2704, June 28 - July 6, 2016, Book1 Vol. 2, 1097-1104 pp

ABSTRACT
The possibility of the experimental removal of the holmium (III) from dilute aqueous solutions by adsorption-bubble method-Solvent Sublation using dodecyl sulfate sodium is determined. Solvent Sublation process kinetic laws are defined in the solutions containing holmium ions and surface-active substance. It has been established that holmium (III) from water dilute solutions is floated in the form of the base dodecyl sulfate salt - Ho(OH)(C12H25OSO3)2. The solvent sublation - an adsorptive bubble separation method surface, where pop-up bubbles of gas adsorbed on them to tolerate the substance (sublet) from one fluid to another [1]. The solvent sublation is a combination of flotation ions or molecules from liquid extraction. Unlike conventional solvent extraction, in process of SS mass transfer from aqueous phase to organic involving bubbles. This eliminates a number of problems associated with emulsification. In addition, the volume of the organic phase is comparatively small, as it is determined only by the capacity with respect to sublate and the cross sectional area of the apparatus. The process is implemented with small expenditure of gas, does not destroy the upper layer of organic liquid.

Keywords: Rare earth elements (holmium cation (III)), sodium dodecyl sulfate, solvent sublation