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Method for preparing stable peracetic acid disinfectant

A technology of peracetic acid disinfectant and peracetic acid, which is applied in the field of chemical disinfectant preparation and disinfectant preparation, can solve the problems that the safety and stability cannot meet the production and use requirements, the production process is complicated, and the manufacturing cost is high, so as to achieve disinfection Good sterilization effect, simple production process and good stability

Active Publication Date: 2011-05-04
GUANGDONG HUANKAI MICROBIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these patented technologies have their own characteristics in improving the concentration and stability of peracetic acid, their production process is complicated, the manufacturing cost is high, and the safety and stability still cannot meet the production and use requirements.

Method used

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  • Method for preparing stable peracetic acid disinfectant
  • Method for preparing stable peracetic acid disinfectant
  • Method for preparing stable peracetic acid disinfectant

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0029] 1. Weigh 25g of sodium tungstate, 25g of ethylenediaminetetramethylphosphoric acid, and 50g of 1,3,5-mellitic acid, mix and fully stir to obtain 100g of compound stabilizer.

[0030] 2. Weigh 100g of the compound stabilizer prepared above, 100g of isomeric decanol polyoxyethylene ether surfactant, 3400g of hydrogen peroxide, 3000g of acetic acid and 3400g of water respectively.

[0031] 3. First pump water into the enamel jacketed reaction kettle, then add compound stabilizer and surfactant and stir to dissolve, then pump in hydrogen peroxide and acetic acid in sequence, and stir for 30 minutes to obtain stable peracetic acid disinfection agent.

preparation Embodiment 2

[0033] 1. Weigh 25g of potassium tungstate, 25g of hydroxytolylidene diphosphoric acid, and 50g of 1,2,3-diphenylenetricarboxylic acid, mix and fully stir to obtain 100g of compound stabilizer.

[0034] 2. Weigh 100g of the compound stabilizer prepared above, 100g of isomeric undecyl alcohol polyoxyethylene ether surfactant, 3400g of hydrogen peroxide, 3000g of acetic acid and 3400g of water.

[0035] 3. First pump water into the enamel jacketed reaction kettle, then add compound stabilizer and surfactant and stir to dissolve, then pump in hydrogen peroxide and acetic acid in sequence, and stir for 30 minutes to obtain stable peracetic acid disinfection agent.

proportion Embodiment 1

[0036] Proportional embodiment one: the comparison of the stability of the synthetic peracetic acid of typical method and the synthetic peracetic acid of not adding catalyzer (sulfuric acid):

[0037] 1. Typical method synthesis: hydrogen peroxide reacts with acetic acid in the presence of sulfuric acid catalyst

[0038] 2. No catalyst synthesis: direct reaction of hydrogen peroxide and acetic acid

[0039] After the two are stored at room temperature and protected from light, after 12 natural months, the appearance is clear and transparent, without color change, precipitation and suspended matter. The comparison of the change of its peracetic acid content is as follows: figure 1 Shown:

[0040] from figure 1 It can be seen that the peracetic acid synthesized by the typical method is due to the catalysis of sulfuric acid, and the synthetic speed of peracetic acid is relatively fast, and its highest concentration can be measured after 48 hours; Slow, its highest concentrati...

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Abstract

The invention relates to a method for preparing stable peracetic acid disinfectant. The peracetic acid disinfectant comprises the following raw materials in percentage by weight: 27% to 39% of hydrogen peroxide, 22% to 36% of acetic acid, 0.01% to 2% of composite stabilizer, 0.01% to 2% of surfactant, and the balance of water. In the obtained peracetic acid disinfectant, the mass concentration ofperacetic acid is 15 to 20g / 100g, the mass concentration of the hydrogen peroxide 20 to 30g / 100g, and the mass concentration of the acetic acid 10 to 20g / 100g. The peracetic acid disinfectant prepared by the method has the characteristics of high concentration of peracetic acid, good stability, good disinfection and sterilization effect, simple production process, safety and the like.

Description

【Technical field】 [0001] The invention relates to a method for preparing a disinfectant, in particular to a method for preparing a stable peracetic acid disinfectant, which belongs to the field of chemical disinfectant preparation. 【Background technique】 [0002] As a disinfectant, peracetic acid (C 2 h 4 o 3 ) has the advantages of broad spectrum, high efficiency, quick effect, non-toxic and no residue of decomposition products, etc. It has been used for disinfection as early as the 1940s, and it has been widely used in my country in the 1970s. However, peracetic acid is very unstable under normal conditions, and factors such as temperature, light, alkali, organic matter, and metal ions can cause its concentration to drop rapidly. At present, there are two types of peracetic acid products on the market: one is the binary type, and its product is divided into two components, A and B, which are usually stored separately. Hours to 48 hours and then diluted to the required ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/16A01N25/22A01P1/00
Inventor 陈维邓金花陈志勇蔡建华吴清平
Owner GUANGDONG HUANKAI MICROBIAL SCI & TECH
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