| abstract |
PROBLEM TO BE SOLVED: To provide a method for producing a water-absorbing polymer having a small amount of remaining air bubbles, excellent handleability and good physical properties, and an apparatus for producing the polymer. SOLUTION: An apparatus for producing a water-absorbing polymer according to the present invention comprises: an ejector 12 for supplying an inert gas to a solution containing a monomer as a raw material; And a polymerization machine 18 provided with the polymerization machine 18. The ejector 12 and the polymerization machine 1 8, a mixing tower 15 is provided which also serves as a cyclone chamber for removing the inert gas supplied to the solution. In the above solution, dissolved oxygen is removed by an inert gas supplied from the ejector 12, Is supplied to the polymerization machine 18 after the inert gas is removed. |