Environment-friendly drier as well as preparation method and application thereof

The invention discloses an environment-friendly drier, which is characterized in that the drier is a complex formed by an aza norbornene derivative as an organic ligand, iron and lithium metal, and the aza norbornene derivative is shown in the following structural formula 1. The mixing ratio of the aza norbornene derivative to the iron and lithium metal inorganic salt is 1: (0.8-1.5); the R group in the formula 1 is any one or more of formulas 2-6. The invention also discloses a preparation method and application of the compound. The prepared drier is higher in yield, better in drying effect and lower in cost. 本发明公开了一种环保型催干剂，其特征在于，所述催干剂为如下结构式1所示的氮杂降冰片烯衍生物作为有机配体，与铁和锂金属形成的络合物；所述氮杂降冰片烯衍生物与所述铁和锂金属无机盐的混合比例为1：(0.8-1.5)；所述式1中的R基团为如式2-6当中所述的任意的一种或多种。本发明还公开了其制备方法和应用。本发明所制备的催干剂收率更高、催干效果更好且成本更加经济。