| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of efficiently recovering cyclic polyarylene sulfide having a uniform and easily-handleable crystal.SOLUTION: Cyclic polyarylene sulfide is recovered as a solid content from a mixture containing at least (a) the cyclic polyarylene sulfide and (b) an organic solvent and in which the cyclic polyarylene sulfide (a) is dissolved, by mixing a solvent (c) other than (b) in a state in which the Sauter average particle diameter (D32) is 10 μm to 5000 μm and it is scattered to a mixture surface in a spray state with the mixture. |
