Novel desulfurizer for improving purification degree of decarburization vent air and preparation method thereof

The invention belongs to the technical field of desulfurizing agents, and discloses a novel desulfurizing agent for improving the purification degree of decarburization vent gas and a preparation method thereof.The preparation method comprises the following steps that S1, halloysite is loaded with ZnS through a vacuum negative pressure method, and ZnS modified halloysite is obtained; s2, mixing the modified halloysite, calcite, diatomite and silicon carbide, putting the mixture into a ball mill, adding water into the ball mill, carrying out wet milling for 30-60 minutes, drying, granulating and sintering slurry which is uniformly mixed after wet milling, and obtaining open-cell foamed ceramic particles after sintering is completed; s3, loading ferric oxide on the open-cell foamed ceramic particles by adopting a coprecipitation method to obtain the open-cell foamed ceramic desulfurizing agent loaded with the ferric oxide. The invention has the effects of high desulfurization precision, high strength, mild reac