Extraction of rhenium(VII) and molybdenum(VI) with hexabutyltriamide of phosphoric acid from acid media |
| |
Authors: | V. F. Travkin A. V. Antonov V. L. Kubasov A. A. Ishchenko Yu. M. Glubokov |
| |
Affiliation: | (1) Lomonosov State Academy of Fine Chemical Technology, Moscow, Russia;(2) Gintsvetmet Institute, Federal State Unitary Enterprise, State Scientific Center of the Russian Federation, Moscow, Russia |
| |
Abstract: | Extraction of rhenium(VII) and molybdenum(VI) from sulfuric, hydrochloric, and nitric acid solutions with hexabutyltriamide of phosphoric acid was studied. The influence exerted on the extraction of Re(VII) and Mo(VI) by the nature and concentration of an acid in the aqueous phase, temperature, time of contact between phases, and concentration of the extracting agent in the organic phase was analyzed. Isotherms of extraction of rhenium(VII) and molybdenum(VI) with solutions of hexabutyltriamide phosphoric acid in kerosene were obtained, the composition of the complexes being extracted was determined, the enthalpies and entropies were evaluated, and the concentration constants of extraction of the metals were found. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|