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METHOD FOR PRODUCING RECYCLED SUPERABSORBENT POLYMER, METHOD FOR PRODUCING SUPERABSORBENT POLYMER USING RECYCLED SUPERABSORBENT POLYMER, AND RECYCLED SUPERABSORBENT POLYMER
METHOD FOR PRODUCING RECYCLED SUPERABSORBENT POLYMER, METHOD FOR PRODUCING SUPERABSORBENT POLYMER USING RECYCLED SUPERABSORBENT POLYMER, AND RECYCLED SUPERABSORBENT POLYMER
Provided is a method that is for producing a recycled superabsorbent absorbent polymer and that allows a spent superabsorbent polymer derived from a used sanitary article to be effectively used in a product which uses a superabsorbent polymer as a raw material. This method is for producing, from a used superabsorbent polymer obtained from a used sanitary article, a recycled superabsorbent polymer that is a raw material for production of a superabsorbent polymer. This method comprises: a deactivation step (S30) for deactivating a used superabsorbent polymer using an acidic solution; an oxidant treatment step (S31) for treating the used superabsorbent polymer deactivated using the acidic solution, using an oxidant under acidic conditions; and a drying step (S33) for drying the used superabsorbent polymer treated using the oxidant, to generate a recycled superabsorbent polymer.
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