丁基橡胶聚合新型超重力反应器工艺  

Preparation of butyl rubber by new high-gravity technology

作　　者：张雷[1,2] 高花[1,2] 邹海魁[1,2] 初广文[1,2] 吴一弦[3] 陈建峰[1,2] 

机构地区：[1]纳米材料先进制备技术与应用科学教育部重点实验室 [2]教育部超重力工程研究中心 [3]国家资源有效利用国家重点实验室,北京化工大学,北京100029

出　　处：《化工学报》2008年第1期260-263,共4页CIESC Journal

基　　金：国家高技术研究发展计划重点项目(2006AA030202,2006AA030203);国家自然科学杰出青年基金项目(20325621)~~

摘　　要：A novel rotating packed bed(RPB)technology was used to prepare butyl rubber for the first time.The effects of the operating parameters,such as rotate speed,polymerization temperature,on the molecular weight and molecular weight distribution of isobutylene-isoprene rubber(IIR)were investigated in the experiment.The results revealed that IIR prepared by the unique high gravity reaction technology with the molecular weight of 2.89×105,molecular weight distribution index of 1.99 and single-pass conversion 30% was obtained at N=1200 r·min-1,Tp=-100℃ in the experimental condition.In addition,the mean residence time of the products was less than 1s while that of the conventional technology was 30—60 min.The production efficiency per unit volume of the equipment was increased by 2—3 orders of magnitude.With increasing N and decreasing Tp,the molecular weight of IIR increased whereas no obvious difference of the distribution index of molecular weight was observed.A novel rotating packed bed （RPB） technology was used to prepare butyl rubber for the first time. The effects of the operating parameters, such as rotate speed, polymerization temperature, on the molecular weight and molecular weight distribution of isobutylene-isoprene rubber （IIR） were investigated in the experiment. The results revealed that IIR prepared by the unique high gravity reaction technology with the molecular weight of 2.89 × 10^5, molecular weight distribution index of 1.99 and single-pass conversion 30% was obtained at N= 1200 r · min^-1 Tp =- 100℃ in the experimental condition. In addition, the mean residence time of the products was less than ls while that of the conventional technology was 30-60 min. The production efficiency per unit volume of the equipment was increased by 2-3 orders of magnitude. With increasing N and decreasing Tp, the molecular weight of IIR increased whereas no obvious difference of the distribution index of molecular weight was observed.

关 键 词：超重力法 丁基橡胶 阳离子聚合 

分 类 号：TQ028[化学工程]