METHOD FOR RECLAIMING USED SUPERABSORBENT POLYMER

摘要

A method enabling a used superabsorbent polymer recovered from used absorbent, etc., to be readily and inexpensively recovered without using acids or alkalies. The used superabsorbent polymer is treated with an aqueous solution of a multivalent metal salt such as calcium chloride, etc., the superabsorbent polymer treated with the aqueous solution of a multivalent metal salt is treated with an aqueous solution of an alkaline metal salt such as sodium chloride, etc., the superabsorbent polymer treated with the aqueous solution of an alkaline metal salt is washed with water, and the superabsorbent polymer washed with water is then dried.

主权项

1. A method for reclaiming used superabsorbent polymer, comprising: a step for treating a used superabsorbent polymer with an aqueous multivalent metal salt solution, and a step for treating the superabsorbent polymer with an aqueous alkaline metal salt solution following treatment with the aqueous multivalent metal salt solution.