Hebei Messi Biology Co., Ltd. stated that potassium persulfate complex salt is a stable, convenient, and widely used excellent acidic oxidant. Its application areas include oral cleaning, swimming pool and hot spring water disinfection, circuit board etching agent, pulp bleaching, wool fabric shrinkage treatment, precious metal refining, etc. Compared with potassium persulfate complex salt without anti-caking agent, potassium persulfate complex salt with anti-caking agent has different degrees of anti-caking ability, whether placed in a natural environment or in a dryer. Among them, the anti-caking performance of the compound anti-caking agent of 1% light magnesium carbonate + 1% magnesium oxide added by Hebei Messi Biology Co., Ltd. is the best.
The invention discloses an anti-caking treatment method for potassium persulfate composite salt, which belongs to the technical field of inorganic peroxide preparation. A surfactant is added as an anti-caking agent in a spraying manner to the wet potassium persulfate composite salt, and magnesium carbonate or magnesium oxide is added as an isolating agent after drying. The surfactant can be any one or a mixture of sodium dodecyl sulfate, sodium α-olefin sulfonate, fatty alcohol polyoxyethylene ether, polyoxyethylene polyoxypropylene ether, dodecyl trimethyl ammonium chloride, sodium carboxymethyl cellulose, fatty alcohol polyoxyethylene ether ammonium sulfate, stearic acid glycerol monoester, nonylphenol polyoxyethylene ether, methyl silicone oil, etc., and the amount of the surfactant added is 0.05% to 1% of the weight of the wet potassium persulfate composite salt. By reasonably selecting a surfactant as an anti-caking agent and magnesium carbonate or magnesium oxide as an isolating agent, the production process is simple, easy to operate, and suitable for large-scale industrial production.