초록 ▼

A method is provided for removing iodide from aqueous solutions in which the iodide is converted to iodine. The porous granules of the polyvalent metal chelating resin containing zirconium peroxide bound to the chelating groups thereof is contacted with the aqueous iodide solution. The iodine is for

A method is provided for removing iodide from aqueous solutions in which the iodide is converted to iodine. The porous granules of the polyvalent metal chelating resin containing zirconium peroxide bound to the chelating groups thereof is contacted with the aqueous iodide solution. The iodine is formed within the granules and retained therein, permitting the aqueous solution to be separated to create iodine. This iodine can be recovered by organic solvent elution. The oxidative capacity of the resin granules has been reduced, it can be regenerated after removal of the obtained iodine by contacting the resin granules with aqueous hydrogen peroxide.

대표청구항 ▼

The method of preparing iodine from an aqueous solution containing iodide, comprising contacting said solution with porous granules composed of a polyvalent metal chelating resin having zirconium peroxide bound to the chelating groups thereof, said contacting oxidizes iodide to iodine, separating th

The method of preparing iodine from an aqueous solution containing iodide, comprising contacting said solution with porous granules composed of a polyvalent metal chelating resin having zirconium peroxide bound to the chelating groups thereof, said contacting oxidizes iodide to iodine, separating the solution from the granules while leaving the iodine within said granules, and thereafter recovering the iodine from said granules by solvent elution.