In order not to influence the quality of light chemical oil. we adopt the method of partial redistillation. 为了不影响化工轻油质量,采取部分回炼的方法。
When losses in prefractionation, acid washing and redistillation were included, the net recovery of toluene from the platformate was 93%. 如包括预分馏损失,则甲苯的收率为96%(重量)。酸碱洗涤和再蒸馏损失一般可按3%计,因此,纯甲苯净收率为93%(重量)。