The mechanism of electrolytic purification the syrup of raw sugar was set forth.Electrolytic decolourization appending G409 was studied, in the meanwhile considering the consume of electric energy.

• 阐述了原糖溶液电解脱色的机理,研究了电解过程添加G409的脱色效果,并同时对耗电量等指标进行了探索。