年产20t纳米ZnO中试研究及生产  

The pilot test with 20t/year production of nanometer-size zinc oxide preparation

作　　者：雷闫盈[1] 卫志贤[1] 祖庸[1] 吴金龙 王国辉 李小剑 

机构地区：[1]西北大学化工系,陕西西安710069 [2]江苏常泰化工集团公司,江苏常州213147

出　　处：《功能材料》2001年第4期410-412,共3页Journal of Functional Materials

摘　　要：用均匀沉淀法制备纳米ZnO中试研究表明 :尿素水解和沉淀反应采用间歇操作的搅拌釜式反应器是合适的 ;小试提供的原料路线是可行的 ,工艺条件是正确的 ;进一步放大在满足工艺条件的前提下 ,反应前升温的供热强度不小于 60kJ/(min·L) ;反应结束后的冷却换热强度不小于 2 7kJ/(min·L)。中试装置的生产能力为 2 0t/年 ,产品纳米氧化锌粒径为 35～80nm ,收率达到 80 %。The homogeneous precipitation method is used for preparing nanometer size zinc oxide in the pilot test. The test results show that the batch stirring reactor is suitable for hydrolysis of urea and precipitation reaction, the raw material and process conditions in lab.test are applicable for pilot scale.In the pilot test, the heating strength is not less than 60kJ/(min·L) for temperature raise stage before reaction and the cooling strenth is not less than 27kJ/(min·L) for cooling stage after reaction.The production amount of pilot test installation is 20t/year,the particle diameter of nanometer size ZnO prepared is 35～80nm and yield 80%.

关 键 词：均匀沉淀法 生产 纳米氧化锌 

分 类 号：TQ174.758[化学工程—陶瓷工业] TN304.21[化学工程—硅酸盐工业]