The present invention concerns a process for producing a polyarylene sulfide of high whiteness from an alkali metal sulfide and a dihalogenated aromatic compound, wherein a reaction product obtained by reacting alkali metal sulfide (M²₂S) and at least one ingredient (M¹X) selected from the group consisting of alkali metal halide and alkaline earth metal halide under the presence of water and polar solvent and separating by solid-liquid separation are brought into contact with a dihalogenated aromatic compound.
本发明涉及一种用碱
金属
硫化物和二卤代芳香族化合物生产高白度聚芳
硫醚的工艺,其中,在
水和极性溶剂存在下,碱
金属
硫化物(M²₂S)和至少一种选自碱
金属卤化物和碱土
金属卤化物的成分(M¹X)反应得到的反应产物与二卤代芳香族化合物接触,并通过固液分离进行分离。