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Catalyst for preparing peracetic acid disinfectant and preparation method of disinfectant

A peracetic acid and catalyst technology, which is applied in the field of preparation of catalysts and disinfectants, can solve the problems of flammable and explosive hazards, fire, and high risk of transshipment, and achieve the advantages of avoiding dependence on production equipment, improving stability, and simplifying the process route Effect

Pending Publication Date: 2021-06-15
CHINA TIANCHEN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain a peracetic acid solution with a concentration of 30-40%, the industry needs to use 60-70% wt% hydrogen peroxide. Peracetic acid is highly dependent on high-concentration hydrogen peroxide manufacturers, which severely limits the popularization of peracetic acid industrial production.
The risk of transporting high-concentration hydrogen peroxide is very high, and it is extremely prone to explosion
Therefore, the industrialization of peracetic acid urgently needs to solve problems such as the limiting factors of high-concentration hydrogen peroxide, low concentration of peracetic acid produced by low-concentration hydrogen peroxide, long reaction time, and uncontrollable risks.
[0006] The old product of AB agent is more dangerous, and its concentration of peracetic acid is 15% to 21%. It is not conducive to the preservation of ordinary users, and it is difficult to complete safe dilution and use through simple operations.
[0007] 75% alcohol is an aqueous solution with 75% ethanol content. It is highly flammable and explosive. Improper control during large-scale use and spraying may easily lead to fire

Method used

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  • Catalyst for preparing peracetic acid disinfectant and preparation method of disinfectant
  • Catalyst for preparing peracetic acid disinfectant and preparation method of disinfectant
  • Catalyst for preparing peracetic acid disinfectant and preparation method of disinfectant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Dissolve 5g of cetyltripropylammonium bromide in a mixture of 60mL of 0.5mol / L NaOH and 2.4L of deionized water, stir at 80°C for 15min, add 0.1L of 3.7wt% formaldehyde solution, and Add 0.1L 0.05mol / L potassium chloropalladate aqueous solution. After stirring for 10 min, 50 g of ethanol was slowly added dropwise, centrifuged after 1 h of reaction, washed 4 times with deionized water and once with ethanol, and dried at 60° C. for 24 h. Raise the temperature to 600°C at a rate of 1°C / min under an air atmosphere and keep it for calcination for 6 hours to remove hexadecyltripropylammonium bromide to obtain the final catalyst.

Embodiment 2

[0054] The mass ratio of ruthenium and aluminum is 2:3, that is, the atomic ratio is 15:85. In order to avoid the arc from rushing the material out of the crucible during the melting process, the cross-sectional area is 9mm 2 The bulk ruthenium metal, the wire-shaped aluminum metal with a length of 5mm and an inner diameter of 1mm are used as auxiliary materials. According to the principle of easy splashing and high melting point metals placed below, the ruthenium metal is first placed on the bottom of the copper crucible, and then covered with aluminum metal. Evacuate the electric arc furnace to 6×10 -3 Pa, filled with inert gas as a protective atmosphere and then smelted. After smelting, it is continuously turned over and cooled into an ingot. In order to ensure that the alloy is smelted evenly, each alloy sample is repeatedly smelted many times. Under a nitrogen atmosphere, the temperature was raised to 600°C at a rate of 1°C / min and kept for calcination for 6h. The act...

Embodiment 3

[0056] Powdered platinum metal and aluminum metal are used as alloy raw materials. The mass ratio of platinum and aluminum is 1:4. After adding a certain amount of process control agent, mix the powder evenly. Then put the mixture into the ball mill jar, add the balls whose mass is 20 times that of the raw material, seal the jar and evacuate it. Rotate at a speed of 500rpm, switch the direction of rotation every 2 hours, and grind continuously for a certain period of time. After a long time of ball milling, the particle size of the powder is generally less than 1 μm. Put the ball mill tank into a vacuum glove box, open the tank, take samples under the protection of nitrogen, and finally store it in a container with a valve. After the alloy powder is passivated by the air diffused into it, the 400-mesh powder is sieved for later use. Under a nitrogen atmosphere, the temperature was raised to 600°C at a rate of 1°C / min and kept for calcination for 6h. The activation process i...

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Abstract

The invention provides a catalyst for preparing a peracetic acid disinfectant and a preparation method of the disinfectant, and the catalyst is prepared by the following steps: under certain conditions, uniformly mixing a catalyst precursor and an auxiliary material, and carrying out heat treatment and activation to obtain the catalyst. The catalyst precursor is one or two or more of a metal precursor salt, a metal oxide and a metal elementary substance, and the metal precursor salt is one or two or more of potassium chloroaurate, potassium chloropalladate, potassium chloroplatinate, ruthenium trichloride, silver nitrate and sodium hexachlororhodate; the metal oxide is one or two or more of PtOx, PdOx, RuOx, RhOx, IrOx, AuOx, AgOx and AlOx; and the metal elementary substance is one or two or more of Pt, Pd, Ru, Rh, Ir, Au, Ag and Al. Low-concentration hydrogen peroxide is suitable for peracetic acid synthesis, dependence on a high-concentration hydrogen peroxide production device is avoided, and production popularization can be achieved.

Description

technical field [0001] The invention belongs to the technical fields of fine chemical industry and pharmaceutical chemical industry, and in particular relates to a catalyst for preparing peracetic acid disinfectant and a preparation method of disinfectant. Background technique [0002] In the field of disinfectants such as air, surfaces, fruits and vegetables, and medical equipment, peracetic acid (C 2 h 4 o 3 , bactericidal acid, PAA) can disinfect bacteria, fungi, bacilli, viruses. According to the detection report of foreign laboratories (Dr. Gerd Schreiner, Ines Bube Kurzfassung in OBST 66 (1999) Heft 4, S.183–188), can quickly and completely kill a variety of pathogenic microorganisms such as viruses, bacteria, spores, fungi, etc., and has a good preventive (killing) effect on many infectious diseases (pathogens) . Including but not limited to: Escherichia coli, herpes virus, human immunodeficiency virus (HIV), influenza virus, human coronavirus (CoV), hepatitis ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/42B01J23/44B01J23/46C07C407/00C07C409/26A01N37/16A01P1/00A01P3/00
CPCB01J23/44B01J23/462B01J23/42C07C407/00A01N37/16C07C409/26
Inventor 吕金昆黄冠博王聪冯传密刘喆吴昊杨琦武袁海朋刘新伟王元平杨克俭霍瑜姝
Owner CHINA TIANCHEN ENG
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