Continuous production system and method for potassium peroxymonosulfate composite salt

Abstract

The invention relates to the technical field of inorganic salt production, and in particular relates to a continuous production system and method for potassium peroxymonosulfate composite salt. The production method comprises the steps of S1 continuously adding hydrogen peroxide and fuming sulfuric acid into a first reactor and a second reactor respectively, starting a reaction liquid circulating pump, enabling the hydrogen peroxide and the fuming sulfuric acid to be in contact with each other, circulating in an oxidation reaction device and then flowing into a dilution device; S2 allowing oxidation liquid to flow into a neutralization reactor through the dilution device, continuously adding potassium carbonate, cooling the obtained neutralization liquid through a cooler, and allowing the cooled neutralization liquid to flow into a continuous crystallization device; and S3 enabling the crystallized neutralization liquid to flow into a first solid-liquid separation device, enabling the liquid as a mother solution to flow into a mother solution circulating tank, opening a mother solution circulating pump to enable the mother solution in the mother solution circulating tank to flow into the dilution device to dilute the oxidation liquid, further processing the solid, and outputting, thereby realizing automatic production and continuous product output.

Description

technical field

[0001] The invention relates to the technical field of inorganic salt production, in particular to a continuous production system and production method of potassium monopersulfate compound salt. Background technique

[0002] Potassium monopersulfate compound salt is a stable, convenient, and widely used excellent acidic oxidant. Its application fields involve oral cleaning, swimming pool and hot spring water disinfection, circuit board etchant, pulp bleaching, and wool fabric anti-shrinkage treatment , Precious metal refining, etc. Potassium monopersulfate compound salt is also an important auxiliary agent in organic synthesis, which can epoxidize the double bonds in organic molecules, and is a free radical initiator for many polymerization reactions. In addition, potassium hydrogen persulfate compound salt can be used as an oxidant for sulfur-containing substances such as hydrogen sulfide in wastewater treatment, a low-temperature oxygen-based bleach in det...

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