BUTENEX is the most advanced extractive distillation techonology for n-butene and butane separation up to now,uses methyl ethyl ketone and N-formyl morpholine for extraction solvent.

• 采用甲乙酮和氮甲酰吗啉混合物做萃取剂分离正丁烯和丁烷的技术是目前最先进的技术。