Iodine recovery process

Details Iodine recovery process Iodine recovery process

1974-11-21

1978-12-26

Rutledge, L. Dewayne

Chemistry of inorganic compounds

Halogen or compound thereof

Elemental halogen

210 32, C01B 714

Patent

active

041316452

ABSTRACT:
Iodine is recovered from an aqueous solution containing iodide such as underground brine by repeated cycles of (1) passing the brine through a basic anion exchange resin to adsorb iodide, and (2) oxidizing adsorbed iodide to iodine by passing an acidified aqueous iodate solution (e.g., NaIO.sub.3) through the resin. The cycle is repeated many times until the resin is iodine-loaded. Iodine is then eluted from the resin, for example, with aqueous NaOH and recovered from the eluate by conventional means.

REFERENCES:
patent: 3352641 (1967-11-01), Nakamura

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