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Synthetic method for broad-spectrum bactericide peroxyacetic acid

A technology of peracetic acid and synthesis method, which is applied in the preparation of peroxy compounds, chemical instruments and methods, preparation of organic compounds, etc., can solve the problem of high corrosion resistance requirements of production equipment, high cost of post-pollutant treatment, and reduced reaction costs. and other problems, to achieve the effect of being beneficial to cost control, shortening the reaction time, and improving the reaction yield

Inactive Publication Date: 2018-07-03
CHENGDU WEI ER BO DUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These factors will have higher requirements for corrosion resistance of production equipment, and higher costs for post-pollutant treatment, which is not conducive to reducing reaction costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The synthetic method of broad-spectrum bactericide peracetic acid comprises the steps:

[0016] A: Add 3mol acetaldehyde in the reaction vessel, 800ml mass fraction is 16% sodium sulfate solution, control the temperature of the solution to 30°C, control the stirring speed at 270rpm, add 6mol bromosuccinimide, and add it in 2 times within 30min 6mol mass fraction is 30% ethylene glycol monohexyl ether solution, continue to react for 80min;

[0017] B: Then add 3mol zinc chromate powder, increase the reaction temperature to 40°C, continue the reaction for 120min, lower the temperature to 10°C, stop stirring, add 1.5L mass fraction of 10% potassium bromide solution, the solution is layered, and the mass fraction is Wash with 40% cyclopentane solution for 30 minutes, recrystallize in 60% hexanediol solution, and dehydrate with activated alumina dehydrating agent to obtain 224.124 g of finished peracetic acid with a yield of 98.3%.

Embodiment 2

[0019] The synthetic method of broad-spectrum bactericide peracetic acid comprises the steps:

[0020] A: Add 3mol acetaldehyde in the reaction vessel, 800ml mass fraction is 19% sodium sulfate solution, control the temperature of the solution to 34°C, control the stirring speed at 280rpm, add 7mol bromosuccinimide, add in 3 times within 40min 7mol mass fraction is 33% ethylene glycol monohexyl ether solution, continue to react for 100min;

[0021] B: Then add 4mol zinc chromate powder, increase the reaction temperature to 43°C, continue the reaction for 150min, lower the temperature to 13°C, stop stirring, add 1.5L mass fraction of 14% potassium bromide solution, the solution is layered, and the mass fraction is Washing with 43% cyclopentane solution for 33 minutes, recrystallization in 63% hexanediol solution, and dehydration with activated alumina dehydrating agent to obtain 224.808g of finished peracetic acid with a yield of 98.6%.

Embodiment 3

[0023] The synthetic method of broad-spectrum bactericide peracetic acid comprises the steps:

[0024] A: Add 3mol acetaldehyde in the reaction vessel, 800ml mass fraction is 22% sodium sulfate solution, control the temperature of the solution to 37°C, control the stirring speed at 290rpm, add 8mol bromosuccinimide, add in 4 times within 50min 8mol mass fraction is 35% ethylene glycol monohexyl ether solution, continue to react for 110min;

[0025] B: Then add 5mol zinc chromate powder, increase the reaction temperature to 46°C, continue the reaction for 180min, lower the temperature to 15°C, stop stirring, add 1.5L mass fraction of 17% potassium bromide solution, the solution is layered, and the mass fraction is Washing with 46% cyclopentane solution for 60 minutes, recrystallization in 65% hexanediol solution, and dehydration with activated alumina dehydrating agent to obtain 225.991 g of finished peracetic acid with a yield of 99.1%.

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PUM

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Abstract

The invention discloses a synthetic method for the broad-spectrum bactericide peroxyacetic acid. The synthetic method comprises the following steps: adding acetaldehyde and a sodium sulfate solution into a reaction vessel, controlling the temperature of the obtained solution to be 30-37 DEG C, controlling a stirring speed to be 270-290 rpm, adding bromosuccinimide, adding an ethylene glycol monohexyl ether solution in batches within 30-50 min, and continuing a reaction for 80-110 min; and then adding zinc chromate powder, raising reaction temperature to 40-46 DEG C, continuing the reaction for120-180 min, lowering the temperature to 10-15 DEG C, stopping stirring, adding a potassium bromide solution, subjecting the solution to layering, carrying out washing with a cyclopentane solution for 30-60 min, then carrying out recrystallization in a hexanediol solution, and carrying out dehydration with a dehydrating agent so as to obtain the finished peroxyacetic acid.

Description

technical field [0001] The invention relates to a preparation method of medicine, which belongs to the field of organic synthesis, in particular to a synthesis method of broad-spectrum bactericide peracetic acid. Background technique [0002] Peracetic acid is a broad-spectrum, quick-acting, high-efficiency sterilant. This product is a strong oxidant that can kill all microorganisms, including viruses, bacteria, fungi, and spores. It can be widely used in disinfection of various appliances and environments. . 0.2% solution contact for 10 minutes can basically achieve the purpose of sterilization. For air, environmental disinfection, preventive disinfection. Used as a bleaching agent for paper, paraffin, wood, starch. In the pharmaceutical industry, it is used as a disinfectant for drinking water, food and preventing infectious diseases. In the organic industry, it is used as an oxidizing agent and epoxy oxidizing agent for the manufacture of propylene oxide, glycerol, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C407/00C07C409/26
CPCC07C407/00C07C409/26
Inventor 廖如佴
Owner CHENGDU WEI ER BO DUN TECH CO LTD
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