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Monobasic stable type peroxyacetic acid disinfection solution and preparation method of monobasic stable type peroxyacetic acid disinfection solution

A technology of peracetic acid and disinfectant, applied in the directions of botanical equipment and methods, disinfectants, chemicals used for biological control, etc., can solve the problems of inconvenience, low stability, long reaction time, etc. The effect of slow, proper proportion and stable system

Inactive Publication Date: 2017-05-24
广州迈高化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 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. After a certain time, it can be diluted to the required concentration for use. This type of product is convenient for production, storage and transportation, but it is extremely inconvenient due to the temporary mixing reaction during use and the long reaction time; the other is the one-component type. It can be directly diluted and used, which is more convenient, but the stability is not high, and it is easy to decompose, which brings great challenges to storage and transportation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] The present invention is a kind of preparation method of unitary stable type peracetic acid disinfectant, comprises the following steps:

[0018] (1) Add glacial acetic acid into the stirring device according to the formula, add concentrated sulfuric acid, hydrogen peroxide, and compound stabilizer in sequence during continuous stirring, stir evenly, stop stirring, and continue to stand still. Preferably, the formula is composed of 30-60% of hydrogen peroxide, 40-60% of glacial acetic acid, 1-3% of concentrated sulfuric acid and 0.2-2.5% of compound stabilizer, calculated by mass percentage. Preferably, the concentration of added hydrogen peroxide is 40-60wt%, the concentration of glacial acetic acid is more than 95wt%, and the concentration of concentrated sulfuric acid is more than 95wt%. Preferably, the compound stabilizer is composed of hydroxyethylidene diphosphonic acid, disodium EDTA, 8-hydroxyquinoline and sodium pyrophosphate, and the combination of suitable st...

Embodiment 1 and comparative example 1

[0024] Hydrogen peroxide (50%): 500g

[0025] Glacial acetic acid (99%): 500g

[0026] Concentrated sulfuric acid (98%): 20g

[0027] Compound stabilizer: 20g, composed of hydroxyethylidene diphosphonic acid, disodium EDTA, 8-hydroxyquinoline and sodium pyrophosphate, the weight ratio is 1:0.5:0.5:0.5.

[0028] At room temperature, add glacial acetic acid into the stirring device, start stirring, add sulfuric acid, stir for 5 minutes, then add hydrogen peroxide, stir for 10 minutes, add compound stabilizer, stir for 30 minutes; stop stirring, continue to stand at constant temperature for 3 hours Then continue to stand still for 8 hours to react, measure the content of hydrogen peroxide and peracetic acid in the solution, and this solution is divided into two equal parts, marked as comparative example 1, embodiment 1, add 10% detox in embodiment 1 solution Ionized water (being 104g deionized water in this example); After standing still for 24 hours, measure the hydrogen perox...

Embodiment 2 and Embodiment 3

[0032] Hydrogen peroxide (50%): 300g

[0033] Glacial acetic acid (99%): 510g

[0034] Concentrated sulfuric acid (98%): 20g

[0035] Compound stabilizer: 20g, composed of hydroxyethylidene diphosphonic acid, disodium EDTA, 8-hydroxyquinoline and sodium pyrophosphate, with a weight ratio of 0.8:0.8:0.5:0.3.

[0036] The specific steps of preparation are:

[0037] (1) Add glacial acetic acid into the stirring device, stir respectively at a certain constant temperature, after adding concentrated sulfuric acid, stir for 6 minutes, then add hydrogen peroxide, add compound stabilizer after stirring for 12 minutes, stir for 35 minutes, stop stirring, Continue to stand in a certain constant temperature for 3 hours.

[0038] (2) Continue to stand still for 8 hours, add 120 g of deionized water, and stir evenly.

[0039] (3) Stop stirring, and after standing overnight, the preparation is complete.

[0040] Under the same formula, with the same preparation process as above, but the...

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Abstract

The invention discloses a monobasic stable type peroxyacetic acid disinfection solution and a preparation method of the monobasic stable type peroxyacetic acid disinfection solution. The preparation method comprises the following steps: (1) adding glacial acetic acid into a stirring device according to formula; continuously stirring and adding concentrated sulfuric acid, hydrogen peroxide and a compound stabilizer in sequence; uniformly stirring; after stopping stirring, standing; (2) after standing for at least 7 hours in the step (1), adding de-ionized water and uniformly stirring; (3) stopping stirring and standing for one night to prepare the monobasic stable type peroxyacetic acid disinfection solution. By adjusting a process, the proportion of peroxyacetic acid, the hydrogen peroxide and the acetic acid in the prepared solution is proper and a system is relatively stable; the content of the peroxyacetic acid is kept in a relatively high interval for relatively long time through chemical balance and is slowly reduced.

Description

technical field [0001] The invention relates to the field of disinfection products, in particular to a peracetic acid disinfectant. Background technique [0002] As a disinfectant, peracetic acid (C2H4O3) has the advantages of broad-spectrum, high efficiency, quick-acting, non-toxic and non-residual 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 . [0003] 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. After a certain time, it can be diluted to the required concentration for use. This type of product is convenient for production, storage and transportation, but it is extremely inconvenient due to the temporary mixing reaction during use and the long reaction time; the other is the one-component type. It can be directly diluted and used, wh...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01P1/00
CPCA01N59/00
Inventor 许详郑庆禄刘露冷淑珍尹曲平
Owner 广州迈高化学有限公司
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