精馏的例句（精馏在句子中的用法）

• A patent technology about rectifying tower tray was introduced. 介绍了一项关于精馏塔板的最新发明专利.
• The utility model relates to a continuous thin film evaporation device provided with a fractionating tower. 本实用新型涉及一种设有精馏塔的连续薄膜蒸发装置.
• The process of producing hexane from 6 # solvent oil by distillation and hydrofining is discussed. 以6 # 溶剂油为原料,通过精馏和加氢精制的方法可制取正己烷.
• A new process of Hydration of propylene oxide to glycols was introduced. 采用反应精馏新工艺由环氧丙烷水合制丙二醇.
• Extractive distillation is an important separation process in chemical industry. 萃取精馏是化学工业中重要的分离方法之一.
• An extractant - screening method with a vapor - liquid equilibrium apparatus in the extractive distillation was introduced. 介绍了萃取精馏萃取剂的一种实验筛选方法,汽液平衡仪直接法.
• P - methoxybenzeneacetonitrile was prepared in 34.8 % yield starting from anisole, via chloromethylation, cyanogenation and fractional distillation. 以苯甲醚为原料,经过氯甲基化, 氰化反应后, 通过精馏获得对甲氧基苯乙腈,总收率为34.8%.