| 摘要 |
<p>A slurry resulting from polymerization and comprising polyarylene sulfide particles obtained by reacting an alkali sulfide source with a dihalogenated aromatic compound in a polar organic solvent, a by-product alkali metal salt, and the polar organic solvent is continuously contacted countercurrently with a cleansing fluid to thereby continuously and efficiently recover polyarylene sulfide particles which have been cleansed. Furthermore, the by-product alkali metal salt is efficiently removed and the polar organic solvent is recovered.</p> |
