The optimum material compounding ratio is obtained by experiment:m(FBI):m( CatB):m(CH3ONa) :m(DMF)=1:0.83:9.75:8.7 ,FMI is gained by method of direct distillation in later disposal,the yield of product can be reached 78.8% with purity of 99.96%.

• 通过实验确定最佳投料比为:m(FBI):m(CatB):m(CHONa):m(DMF)=1:0.；83:9