Method for separating neopentyl glycol and sodium formate by continuous method

The invention discloses a method for separating neopentyl glycol and sodium formate by a continuous method. The method comprises the following steps: introducing condensation reaction liquid of neopentyl glycol into a light component removal tower to remove light components; then feeding the treated condensation reaction liquid into a concentration tower to extract a certain amount of water, and mixing the extracted water vapor through a steam ejector to serve as a heat source of the tower bottom of the concentration tower; subjecting materials at the bottom of the concentration tower to standing in a phase splitter for dividing of two phases, feeding neopentyl glycol at an upper layer and a water phase firstly into a dehydrating tower for extracting water in the neopentyl glycol and the water phase and then feeding the treated material into a refining tower, extracting neopentyl glycol from the top of the tower, and using heavy components at the bottom of the tower as fuel oil; and feeding a lower-layer mate