Theboilingpoints of PX and EB are about 2ºC apart, andtheboilingpoints of PX and metaxylene (MX) are less than 1ºC apart. exxonmobilchemical.com.cn exxonmobilchemical.com.cn 因此,要想 通过蒸馏的方式而既经济又高效地分离乙苯 (EB) 和三个二甲苯异构体是非常困难的, 在某些情况下甚至是...