Modified ground calcium carbonate as well as preparation method and application thereof

The invention discloses modified ground calcium carbonate as well as a preparation method and application thereof. The preparation method comprises the following steps: adding ground calcium carbonateand deionized water into a mixing tank and mixing, conveying the obtained mixture to a pressurization reaction kettle with carbon dioxide cycle through a feeding pump, collecting redundant carbon dioxide in a reaction system in a buffering tank after the reaction is completed, collecting reacted materials in a storage tank through the bottom of the reaction kettle, conveying the reacted materialsto a solid-liquid separation device through a product pump, drying and sieving to obtain modified ground calcium carbonate products. Through the preparation method, ground calcium carbonate with lowcost and wide source is used as the raw material; the production process is simple and reliable; the particle size distribution of solid products is easy to control; the modified ground calcium carbonate can be used as a resin