Patent ID: 8912002
Filing Date: 2014-12-16
Classification: B01J,C01C,C01F,G01C

Abstract:
1. A method of resin evaluation, comprising: (a) loading a known volume of water-washed divalent cation loaded resin with a known activity into a test column; (b) passing a solution with known concentration of univalent counter ion to be exchanged over the resin for an initial period of time; (c) repeating steps (a) and (b) for a different period of time than the initial period of time; (d) calculating the resin conversion X; (e) calculating a univalent counter ion tau value using the equations: where t is the time it takes to achieve a given resin conversion X, in minutes; ρ (f) loading a known volume of water-washed univalent cation loaded resin with a known activity into a test column; (g) passing a solution with known concentration of divalent counter ion to be exchanged over the resin for an initial period of time; (h) repeating steps (f) and (g) for a different period of time than the initial period of time; (i) calculating the resin conversion X; (j) calculating a divalent counter ion tau value using the equations: where t is the time it takes to achieve a given resin conversion X, in minutes; ρ D (k) calculating a ratio τ