聚醚酮过滤工艺及装置的设计

摘要

为了得到高纯度的聚醚酮产物,对聚醚酮过滤工艺及过滤器进行设计.结果发现适宜的操作条件为加料速度60 kg/h、挤出机末段加热温度380℃、出口压力10 MPa、熔体泵出口最大压力30 MPa,过滤网为棒式304材质；过滤后φ5 μm的颗粒杂质小于5个/cm2,纯物料收率90.5％.%The filter device and process were designed for high pure PEK. The results show that the proper operating conditions such as the feeding speed, the heating temperature of the end of the extruder, the outlet pressure of the extruder, the maximum pressure of melt pump are 60 kg/h,380 ℃,10 Mpa and 30 Mpa respectively. A rod-shaped filter is made of 304 stainless steels. The impurities particle (Φ 5μm) number is less than five per square centimeter after filtrating. The yield coefficient of pure material is 90.5%.