Accession Number : ADA303082

Title :   Test on Selected Aluminas to Determine Pseudo Kinetic Rate Constants and Characterize Adsorption Curves,

Corporate Author : ROCKY MOUNTAIN ARSENAL DENVER CO

Personal Author(s) : Prusinski, Dennis M.

PDF Url : ADA303082

Report Date : JUL 1979

Pagination or Media Count : 35

Abstract : The need to find kinetic rate constants for selected aluminas was generated from the alumina column test-results at Rocky Mountain Arsenal. The problem that had not been addressed was finding a means of calculating the initial fluoride removal by aluminas before the linear portion of the fluoride removal versus gallonage curve had been reached. It is important especially with alumina adsorption columns to define the above mentioned region. The reason is improper switching of alumina adsorption columns could result in a loss in efficiency. Information about the region--before linear fluoride removal was reached would reduce the loss inefficiency, accordingly, test runs were scheduled. Since it was not known which of the available aluminas would be used in the final design configuration, six aluminas were chosen for a pseudo-kinetic** rate constant test runs. The--rate adsorption constants and rate expressions derived would allow the prelinear region to be approximated closely. The proper switching of alumina columns could then be made based on the values for the items above. The experimental and mathematical methodology are given in the procedure section. (MM)

Descriptors :   *REACTION KINETICS, *ALUMINUM OXIDES, *FLUORIDES, *ALUMINATES, IONS, ADSORPTION.

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE