The progress of technological remoulding of butadiene extraction with dimethyl formamide(DMF)as solvent by GPB method in Beijing Yanshan Petrochemical Corporation was reviewed.

• 综述了北京燕山石油化工公司对引进的以二甲基甲酰胺（DMF）为溶剂的GPB丁二烯抽提技术的改造情况。