北京燕山石油化工公司合成橡胶厂抽提装置,是从日本瑞翁公司引进的GPB技术,是以30×10~4t乙烯裂解装置的副产品碳四为原料,以二甲基甲酰胺(DMF)为萃取剂,分离出用于生产顺丁橡胶的高纯度丁二烯。装置共分四个部份:第一萃取精馏部份;第 Beijing Yanshan Petrochemical Company synthetic rubber plant extraction device is imported from Japan Zeon GPB technology companies, 30 × 10 ~ 4t ethylene cracking unit by-product carbon four as raw materials, dimethyl formamide (DMF) as Extractant, high-purity butadiene for the production of butadiene rubber was isolated. Device is divided into four parts: the first extractive distillation part;