Multi-stage filtering device for preparing high-purity chemicals

A multi-stage filtering device for preparing high-purity chemicals is characterized in that a reaction kettle is connected with an inlet of a delivery pump through a line pipeline, an outlet of the delivery pump is connected with a primary filter through a line pipeline, and an outlet of the primary filter is respectively connected with inlets of a secondary filter A and a secondary filter B through line pipelines; and the outlets of the secondary filter A and the secondary filter B are respectively connected with a product discharge valve through pipelines. The utility model aims to provide a multi-stage filtering device for preparing high-purity chemicals aiming at effectively removing part of impurities in DMC (Dimethyl Carbonate) in the production process of the high-purity DMC. 一种制备高纯化学品的多级过滤装置，反应釜经线路管道与输送泵进口连接，输送泵出口经线路管道与一级过滤器连接，一级过滤器出口经线路管道分别与二级过滤器A、二级过滤器B进口连接，二级过滤器A、二级过滤器B出口经线路管道分别与产品出料阀连接。本实用新型的目的是针对高纯度的DMC在生产过程中，对DMC中的部分杂质进行有效的去除，而提供的一种制备高纯化学品的多级过滤装置。