Aggregation and restabilization of colloidal titania by aluminum sulfate
The interaction of aluminum sulfate with three concentrations of a negatively-charged titania sol was investigated. Changes in turbidity during settling were used to determine the critical values of coagulation and stabilization. These data were used to establish the entire log aluminum sulfate-pH stability limit diagram for the sol, and its boundaries were related to the ionic species in equilibrium with aluminum hydroxide. The stability limits, except at the very lowest aluminum concentration, are very similar to those described for other sols. Aggregation was not dependent upon sol concentration whereas the critical aluminum concentration for restabilization increased with sol concentration. Data were obtained to demonstrate that titania obeys the Schulze-Hardy rule.
- Research Organization:
- Ohio State Univ., Columbus
- OSTI ID:
- 5457077
- Journal Information:
- Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 21:5; ISSN SSTED
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400105* -- Separation Procedures
AGGLOMERATION
ALUMINIUM COMPOUNDS
ALUMINIUM SULFATES
CHALCOGENIDES
COLLOIDS
DATA
DISPERSIONS
EXPERIMENTAL DATA
FLOCCULATION
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PRECIPITATION
SEPARATION PROCESSES
SULFATES
SULFUR COMPOUNDS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TURBIDITY