Method for separating methyl formate

The invention provides a method for separating methyl formate, which adopts a side draw-out process to separate methyl formate, compared with a conventional tower top and tower bottom sequential separation process, a set of tower top cooling separation system (comprising a tower top cooler, a tower top reflux tank, a tower top reflux and product pump and the like) is saved, the process is more concise, the equipment investment is lower, and meanwhile, the occupied area can be saved. 本发明提供了一种分离甲酸甲酯的方法，采用侧线抽出流程分离甲酸甲酯，相比常规塔顶塔底顺序分离流程节省一套塔顶冷却分离系统(包括塔顶冷却器、塔顶回流罐、塔顶回流及产品泵等)，流程更简洁，设备投资更低，同时可节省占地。