AGENT FOR TREATING METAL IONS IN AN AQUEOUS SOLUTION, PROCESS FOR PRODUCING THE METAL ION-TREATING AGENT AND METHOD FOR TREATING METAL IONS IN AN AQUEOUS SOLUTION

摘要

An agent for treating metal ions in an aqueous solution, comprising a solid porous carrier and, supported thereon, an organic reagent (hereinafter referred to as a "redox reagent") which is capable of converting metal ions (inclusive of metal complex ions) contained in an aqueous solution to zero valent metal or monovalent metal ions by a redox reaction and which is capable of carrying out oxidation-reduction reversibly.