Mixed bed ion exchange resin system and method of preparation

Details Mixed bed ion exchange resin system and method of preparation Mixed bed ion exchange resin system and method of preparation

1999-01-07

2000-05-09

Zitomer, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

521 26, 521 30, 521 33, B01J 4300, B01J 4112

Patent

active

06060526&

ABSTRACT:
A method for preparing non-agglomerating mixed bed ion exchange resin systems without affecting the ion exchange kinetics of the anion exchange resin component of the mixed bed system is disclosed. Pretreatment of the anion exchange resin component with a sulfonated poly(vinylaromatic) polyelectrolyte is particularly effective in providing non-agglomerated mixed bed systems without affecting ion exchange kinetics. Treatment levels of 10 to 800 milligrams per liter of anion exchange resin with sulfonated poly(vinylaromatic) polyelectrolyte having number average molecular weight from 5,000 to 1,000,000 are particularly preferred.

REFERENCES:
patent: 2961417 (1960-11-01), Small
patent: 3168486 (1965-02-01), Small
patent: 3262891 (1966-07-01), Abrams
patent: 4347328 (1982-08-01), Harmon
"Anion Exchange Resin Kinetic Testing: An Indispensable Diagnostic Tool for Condensate Polisher Troubleshooting" by J.T. McNulty et al., 47.sup.th Annual Meeting International Water Conference (IWC-86-54), Pittsburgh, PA (Oct. 27-29, 1986).
"A Discussion of Experimental Ion-Exchange Resin Mass-Transfer Coefficient Methods" by G.L. Foutch et al. (Oklahoma State University, Stillwater, OK), 57.sup.th Annual Meeting International Water Conference (IWC-96-46), Pittsburgh, Pa (Oct. 21-24, 1996).

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