丙烯腈连续水相沉淀聚合过程的在线研究  

On-Line Study on Continuous Precipitation Polymerization of Acrylonitrile in Aqueous Medium

作　　者：秦一秀[1] 姚臻[1] 曹堃[1] 王俊[2] 刘福洲 李家荣 朱四九[2] 彭浩 吴全法[2] 何霖 张蓬安[3] 成强[3] 李胸有[3] 

机构地区：[1]浙江大学化工系国家重点化学工程联合实验室聚合反应工程实验室,浙江杭州310027 [2]中国石油化工股份有限公司安庆分公司,安徽安庆246001 [3]中国石油化工股份有限公司齐鲁分公司腈纶厂,山东淄博255040

出　　处：《化学反应工程与工艺》2007年第5期441-445,共5页Chemical Reaction Engineering and Technology

基　　金：中国石油化工股份有限公司资助(203002;206012;206032)

摘　　要：在模拟工业流程的连续小试装置上进行了丙烯腈和醋酸乙烯酯的水相沉淀共聚合在线研究。考察了连续小试装置的操作特征等。通过聚合体系pH值和聚合温度实时反馈控制技术,即时分析聚合过程特征,发现体系pH值是最敏感的操作参数,而且响应灵敏和精确,能及时提供一些非稳定聚合状态的信息。The aqueous precipitation copolymerization of acrylonitrile and vinyl acetate was investigated by on-line measurement in a pilot device based on industrial processes. The representatives of the pilot device for plant device and its operating characteristics were discussed. The characteristics of the polymerization can be instantly analyzed by real-time on-line feedback ＆ control of the polymerization temperature and corresponding pH value. It was found that the pH value was the most sensitive operational parameter, not only responded sensitively and precisely, but also timely provided the information of non-stable polymerization state.

关 键 词：丙烯腈 醋酸乙烯酯 腈纶 沉淀聚合 在线检测 

分 类 号：TQ342.31[化学工程—化纤工业]