Reactor analysis for selective metal ion extraction in liquid dispersions
The goal of this project is to provide fundamental models for the rational design of liquid extraction processes to predict conversion and selectivity for the hydrometallurgical extraction of metals. The dispersed phase models developed incorporate thermodynamic chemical equilibria, chemical kinetics, mass transfer processes, and droplet mixing. Thermodynamic phase equilibrium and kinetic data for two systems have been obtained and analyzed for models to predict interfacial flux. The interfacial kinetics of the iron (3) sulfate-{beta}-alkenyl-8-hydroxy quinoline ({beta}A8HQ)/xylene system were studied using a liquid jet recycle reactor. Also, a kinetic model in the presence of mass transfer was developed for the cobalt(2) nitrate-acetate buffer/di-(2-ethylhexyl) phosphoric acid-toluene system in a modified Lewis cell contractor. The performance of a continuous flow stirred tank extractor (CFSTE) for the above two hydrometallurgical extraction systems was studied to verify predictive models. A novel laser capillary spectrophotometer was developed to measure bivariate drop size/concentration distributions in turbulent liquid dispersions. The instrument permits the analysis of the extent of droplet mixing on extractor performance. A dispersed phase simulation model was employed to analyze experiments for the cobalt extraction in a CFSTE. Excellent agreement was obtained between experiments and predictions. These results verify the utility of this fundamental approach.
- Research Organization:
- Syracuse Univ., NY (United States). Dept. of Chemical Engineering and Materials Science
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-82ER13002
- OSTI ID:
- 5237359
- Report Number(s):
- DOE/ER/13002-1; ON: DE91018202
- Country of Publication:
- United States
- Language:
- English
Similar Records
Selective metal-ion extraction for multiple ion liquid-liquid exchange reactions. Progress report, March 1, 1980-February 28, 1981
Selective metal-ion extraction for multiple metal-ion liquid-liquid exchange reactions. Progress report, February 1, 1982-January 31, 1983
Related Subjects
400105* -- Separation Procedures
AROMATICS
DOCUMENT TYPES
ELEMENTS
EXTRACTION
EXTRACTIVE METALLURGY
HYDROMETALLURGY
IRON COMPOUNDS
IRON SULFATES
MASS TRANSFER
METALLURGY
METALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROGRESS REPORT
SEPARATION PROCESSES
SPECTROPHOTOMETRY
SULFATES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS