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Anti-caking high-stability potassium hydrogen persulfate active salt disinfectant and preparation method thereof

A technology of potassium hydrogen persulfate and potassium monopersulfate, which is applied in the direction of disinfectants, botany equipment and methods, biocides, etc., can solve the problems of increasing the difficulty of process treatment, and improve the anti-caking performance and stability , low cost, and the effect of improving product yield

Active Publication Date: 2021-12-10
惠州市栢诗新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method increases the difficulty of process treatment to a certain extent, and does not propose a solution for improving product yield.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of anti-caking high stability potassium hydrogen persulfate active salt disinfectant of the present embodiment, concrete preparation steps are as follows:

[0033] (1) Add 30% hydrogen peroxide and sodium tripolyphosphate stabilizer with 1% hydrogen peroxide quality into the reactor, control the temperature at about 0°C, add 30% oleum dropwise under stirring conditions, and the moles of hydrogen peroxide and oleum The ratio is 2:1, and the temperature is controlled below 15°C to keep warm and react to obtain a peroxidation reaction solution.

[0034] (2) in the peroxidation reaction liquid of step (1), drip potassium carbonate solution and carry out neutralization reaction, the add-on of potassium carbonate is in the molar weight of potassium, and the mol ratio with oleum (in sulfate radical) is 5:4, to get neutralizing solution.

[0035] (3) In the neutralization liquid of step (2), adding mass concentration is 0,0.1%, 0.2%, 0.4%, 0.8%, 1....

Embodiment 2

[0042] A kind of preparation method of anti-caking high stability potassium hydrogen persulfate active salt disinfectant of the present embodiment, concrete preparation steps are as follows:

[0043] (1) Add 30% hydrogen peroxide and sodium tripolyphosphate stabilizer with 1% hydrogen peroxide quality into the reactor, control the temperature at about 0°C, add 30% oleum dropwise under stirring conditions, and the moles of hydrogen peroxide and oleum The ratio is 2:1, and the temperature is controlled below 15°C to keep warm and react to obtain a peroxidation reaction solution.

[0044] (2) in the peroxidation reaction liquid of step (1), drip potassium carbonate solution and carry out neutralization reaction, the add-on of potassium carbonate is in the molar weight of potassium, and the mol ratio with oleum (in sulfate radical) is 5:4, to get neutralizing solution.

[0045] (3) In the neutralizing liquid of step (2), add mass concentration respectively and be 1.0% liquid sodium...

Embodiment 3

[0052] A kind of preparation method of anti-caking high stability potassium hydrogen persulfate active salt disinfectant of the present embodiment, concrete preparation steps are as follows:

[0053] (1) Add 20% hydrogen peroxide and 0.5% hydrogen peroxide quality stabilizer trisodium phosphate into the reactor, control the temperature at about 0°C, add 50% oleum dropwise under stirring conditions, the molar ratio of hydrogen peroxide to oleum The ratio is 1:1, and the temperature is controlled below 15°C to keep warm and react to obtain a peroxidation reaction solution.

[0054] (2) drip potassium hydroxide solution in the peroxidation reaction solution of step (1) and carry out neutralization reaction, the add-on of potassium hydroxide is in the molar weight of potassium, and the molar amount of oleum (in sulfate radical) The ratio is 4.8:4 to obtain a neutralizing solution.

[0055] (3) Add liquid sodium silicate with a mass concentration of 1.0% to the neutralizing soluti...

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Abstract

The invention belongs to the technical field of disinfectants, and discloses an anti-caking high-stability potassium hydrogen persulfate active salt disinfectant and a preparation method thereof. The preparation method comprises the following steps: reacting hydrogen peroxide with fuming sulfuric acid in the presence of a stabilizer under a low-temperature condition to obtain a peroxidation reaction solution, then adding a potassium carbonate or potassium hydroxide solution for a neutralization reaction to obtain a neutralization solution, then adding liquid sodium silicate, performing stirring and dissolving uniformly, performing concentrating in vacuum, performing cooling and crystallizing, and performing centrifugal drying to obtain a potassium monopersulfate composite salt; and finally, uniformly performing stirring and mixing with a surfactant, organic acid and inorganic buffer salt to obtain the potassium hydrogen persulfate active salt disinfectant product. A certain amount of liquid sodium silicate is added in the concentration and crystallization process of the potassium monopersulfate composite salt, so that the product yield, the caking resistance and the stability can be remarkably improved. The method has the advantages of low cost and good product performance.

Description

technical field [0001] The invention belongs to the technical field of disinfectant and bactericide, and in particular relates to an anti-caking highly stable potassium hydrogen persulfate active salt disinfectant and a preparation method thereof. Background technique [0002] The main component of potassium hydrogen persulfate active salt is potassium monopersulfate compound salt, also known as potassium hydrogen persulfate compound salt, potassium hydrogen persulfate compound salt, potassium monopersulfate compound salt, which is composed of potassium hydrogen persulfate KHSO 5 , Potassium hydrogen sulfate KHSO 4 , potassium sulfate K 2 SO 4 A compound salt composed of three components. It is a very effective oxidant and disinfectant. Widely used in aquaculture disinfection, livestock breeding disinfection and common environment disinfection. [0003] At present, the methods for preparing potassium monopersulfate compound salt are chlorosulfonic acid method, anodic ox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/22A01N59/02A01P1/00
CPCA01N25/22A01N59/02Y02A50/30
Inventor 李泳
Owner 惠州市栢诗新材料有限公司
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