ADSORBING METHOD OF BORON

摘要

PURPOSE:To adsorb stably the boron by regenerating a selective boron adsorbing resin with an alkaline soln. contg. one kind among hydroxides of alkali metal and ammonia and one kind among mineral acid salts of alkali metal and ammonia. CONSTITUTION:The mother resin obtained by haloalkylating a styrene copolymer is aminated with an amine expressed by the formula (R is -CH2-[CH(OH)]- m(H2OH or an alkyl group, m is 0-6 integer) to obtain a selective boron adsorbing resin which is used for adsorbing boron from a soln. contg. boron. The resin is regenerated with an alkaline soln. after the boron adsorbed by said resin is eluted by an acid. The alkaline soln. in this case is allowed to contain at least one kind among hydroxides of alkali metal and ammonia (e.g. ammonium hydroxide) and at least one kind among mineral acid salts of alkali metal and ammonia (e.g. ammonium sulfate).