Fluorine removal by ion exchange

Details Fluorine removal by ion exchange Fluorine removal by ion exchange

2000-12-01

2009-12-01

Nguyen, Ngoc-Yen M (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

C423S24000R, C423S483000, C423S488000, C210S683000, C210S670000, C210S673000, C095S233000

Reexamination Certificate

active

07625540

ABSTRACT:
A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of hydrofluoric acid with an ion exchange resin having an active state operative to exchange selected ions therein for fluoride ions in the solution. The apparatus (200) may include a dual resin setup (222, 223) such that one of the ion-exchange resin can be in the service cycle while the other of the ion-exchange resins undergoes the regeneration and rinse/refill cycles.

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English abstract and drawing for DE 2300129 (Jul. 1974).

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