全氟碘代烷调聚反应的机理与工艺讨论进展席先锋 ,周晓红 ,吴周安 ,雷志刚 ,顾永红(巨化集团国家氟材料工程技术讨论中心 ,浙江 衢州 324004)摘要 :介绍了全氟碘代烷调聚反应的机理 ,对气相调聚法、催化调聚法和自由基调聚法等全氟碘代烷调聚工艺进行了评价。 指出调聚法制备全氟碘代烷的关键主要在以下 2 个方面 :提高反应器单位产出率 ,降低生产成本 ;提高终产物的选择性 ,减少碳中图分类号 : TQ316133文献标识码 :A文章编号 :0253 - 4320 (2025) 06 - 0018 - 04Advances in mechanism and processes of telomerization of perfluoroalky iodidesXI Xian2f eng , ZHOU Xiao2hong , WU Zhou2an , L EI Zhi2gang , GU Yong2hong(National Engineering Research and Development Center for Fluorine2containing Material Abstract : The mechanism of the telomerization of perfluoroalky iodides is illuminated. The processes of perfluoroalkyiodides by gas phase ,catalyst and radical telomerization are discussed. It is pointed out that two keys to perfluoroalky iodides produced by the telomerization processes are as follows : ①improving productivity of the unit ,and reducing the cost ; ②increasing the selectivity , and decreasing the telomer of by2products containing above 10 carbon numbers , or other by2products. It issuggested that the telomerization equipment should be made up of several tube bank reaction units and dephlegmators ,and the telomerization be done step by step .Key words : perfluoroalky iodides ; gas phase telomerization ; catalyst telomerization ; radical telomerization ; 全氟碘代烷 ,俗称全氟烷基碘 ,是一种重要的氟精细化工原料 。它主要由低级全氟碘代烷与全氟烯 烃调聚反应制备 1 。全氟碘代烷的调聚反应会产生 一系列不同链长的产物 ,具有商业应用价值的主要是碳原子数为 6～12 的产物 ,其中碳原子数为 8 的 全氟碘辛烷尤为重要 ,由它制备的表面活性剂的表面活性最高 ,堪称氟表面活性剂的精华 2 ,是生产氟碘代烷调聚反应的反应机理 ,对调聚工艺的...
