| abstract |
The subject of the present invention is to reduce the residual undried matter when the fine powder of the water-absorbent resin is recycled. The present invention is a method for producing a water-absorbent resin, wherein the fine powder recycling step includes vi-1) to obtain The granulation step of granulated gel, vi-2) granulated gel adding step, vi-3) gel mixing step, in the granulated gel adding step, the solid content of the granulated gel is 50 mass % or more and 90 mass % or less, the temperature of the granulated gel and the temperature of the hydrogel-like cross-linked polymer are 50°C or more and 100°C or less. |