产6000吨聚丙烯酸钠的工艺设计.doc

毕 业 设 计 题 目： 年产6000吨聚丙烯酸钠工艺设计 学 院： 化学与材料工程学院 专 业： 高分子材料科学与工程 姓 名： 学 号： 指导老师： 张艳花 完成时间： 2013-5-30  设计说明 本次设计是利用单体丙烯酸钠在一定条件下，采用反相悬浮聚合原理合成聚丙烯酸钠。本设计的任务是年产6000吨聚丙烯酸钠悬浮聚合间歇操作工艺的设计。其中主要简述了以丙烯酸和钠聚合性单体为主要成分，在疏水性溶剂中经反相悬浮聚合制备高吸水性聚丙烯酸钠的分散介质调配罐，分散介质储罐体积为24。材料为不锈钢。 主要设备：推进式搅拌器，标准椭圆形封头；支承式支座，釜体夹套。12的分散介质调配罐，24的分散介质储罐。沉降式离心机，规格为LW350×1050。配碱釜，中和釜，聚合釜，去离子水储罐。 图纸：1）工艺流程图、2）物料流程图、3）聚合釜的装配图。 关键词：聚丙烯酸钠 物料衡算 热量衡算 生产工艺 主要设备图 工艺流程图  Design Notes This design is the use of sodium acrylate monomer under certain conditions, synthesized by inverse suspension polymerization principle sodium polyacrylate. The design of the mission is to produce 6000 tons of high absorbent resin suspension polymerization process design intermittent operation. Mainly acrylic acid and sodium hydroxide outlined polymerizable monomer as a main component, in a hydrophobic solvent of n-heptane by reversed-phase suspension polymerization, sodium polyacrylate superabsorbent prepared. It also describes the nature of the sodium polyacrylate, characteristics, uses and examples as well as suspension polymerization mechanisms, systems and production processes, intermittent operation characteristics and main raw material. Design of the main results are as follows： Daily theoretical value is 18181kg. Actual production 18552kg. Actual annual output of 61220t. With a base diameter of 2500mm autoclave, the diameter of 1600mm and a kettle, a diameter of 2500mm polymerization vessel. Volume of the dispersion medium to mix the pot 12, a volume of 24. Made of stainless steel. Main equipment: push-stirrer, standard elliptical head; bearing type bearings, kettle body jacket. Deployment dispersion medium tank 12, a dispersion medium tank