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Dual-cation bactericide, preparation method and application thereof

A dual-cation, fungicide technology, applied in the fields of botanical equipment and methods, biocides, chemical instruments and methods, etc., can solve the problems of decreased bactericidal effect, environmental pollution, emergence of drug resistance, etc. Easy to source, good sterilization effect

Inactive Publication Date: 2012-06-27
孙安顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long-term use of a single agent may lead to drug resistance to varying degrees, and the dosage concentration will gradually increase, while the bactericidal effect will continue to decline
[0004] At present, the bactericide commonly used in oil field water and industrial circulating cooling water is dodecyl dimethyl benzyl ammonium chloride (commonly known as 1227), a quaternary ammonium salt surfactant, but due to long-term use, bacteria have developed drug resistance, so that The efficacy of the drug is declining, the dosage is increasing, the production cost is increasing year by year, and it causes environmental pollution

Method used

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  • Dual-cation bactericide, preparation method and application thereof
  • Dual-cation bactericide, preparation method and application thereof
  • Dual-cation bactericide, preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0017] will be 3m 3 Add 1130kg water in the reactor, start stirring. Then add 217kg of tetradecylmethyl secondary amine, start to heat up to 50-55°C, slowly add 93kg of epichlorohydrin, keep the temperature at 60-65°C for 5h, cool down to 40-45°C, add 127kg of hydrochloric acid, add 62kg Trimethylamine, raise the temperature and keep the temperature at 60-65°C for 2.5h. Cool down to 40-45°C, slowly add 124kg of benzyl chloride into the reaction kettle, raise the temperature, keep the temperature at 70-85°C for 5 hours, and finally obtain a colorless or light yellow tetradecyl dicion quaternary compound with a content of 36%. Ammonium salt fungicide products.

Embodiment 2

[0019] will be 3m 3 Add 1300kg water in the reactor, start stirring. Then add 241kg of hexadecylmethyl secondary amine, start to heat up to 50-55°C, slowly add 97kg of epichlorohydrin, keep the temperature at 60-65°C for 6h, cool down to 40-45°C, add 131kg of hydrochloric acid, add 61kg Trimethylamine, raise the temperature and keep the temperature at 60-65°C for 3h. Cool down to 40-45°C, slowly add 127kg of benzyl chloride into the reaction kettle, raise the temperature, keep the temperature at 70-85°C for 6.5 hours, and finally obtain a colorless or light yellow hexadecyl dianion with a content of 34%. Quaternary ammonium fungicide products.

Embodiment 3

[0021] will be 3m 3 Add 1300kg water in the reactor, start stirring. Then add 79 kg of dodecylmethyl secondary amine and 146 kg of tetradecylmethyl secondary amine, start to heat up to 50-55 °C, slowly add 101 kg of epichlorohydrin, keep the temperature at 60-65 °C for 4 hours, and cool down Add 133kg of hydrochloric acid to 40-45°C, add 67kg of trimethylamine, raise the temperature, and keep the temperature at 60-65°C for 5h. Cool down to 40-45°C, slowly add 131kg of benzyl chloride into the reaction kettle, raise the temperature, keep the temperature at 70-85°C for 6 hours, and finally obtain colorless or light yellow tetradecyl with a content of 34%. Dicationic quaternary ammonium fungicide products.

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Abstract

The invention relates to a dual-cation bactericide, a preparation method and application thereof. The dual-cation bactericide has the following structural formula, wherein R is saturated alkane of which the C number is 12 to 18. The method comprises the following steps of: adding 1,000 to 1,400 parts of water and 190 to 295 parts of alkyl methyl secondary amine into a reaction kettle, heating to the temperature of between 50 and 55 DEG C, adding 90 to 105 parts of epoxy chloropropane, keeping the temperature of between 60 and 65 DEG C for 3 to 6 hours, cooling to the temperature of between 40 and 45 DEG C, adding 120 to 136 parts of hydrochloric acid and 60 to 67 parts of trimethylamine, heating to the temperature of between 60 and 65 DEG C, keeping the temperature for 2 to 5 hours, cooling to the temperature of between 40 and 45 DEG C, adding 123 to 131 parts of benzyl chloride, heating to the temperature of between 70 and 85 DEG C, keeping the temperature for 4 to 8 hours, and thus obtaining the dual-cation quaternary ammonium salt bactericide, wherein each raw material in the reaction is proportioned in part by weight. The dual-cation bactericide has a better bactericidal effect, is low in cost, and has economical efficiency and feasibility; and the raw materials are readily available.

Description

technical field [0001] The invention relates to a dication bactericide, a preparation method and application thereof. Background technique [0002] The impact of bacteria and algae on industrial and agricultural production is becoming more and more serious, especially in oil extraction and industrial circulating cooling water systems. However, many kinds of harmful corrosion bacteria often exist in the oilfield injection water system. The most common of these are sulfate-reducing bacteria. Sulfate-reducing bacteria (SRB), saprophytic bacteria (TGB), and iron bacteria (FB) contained in oil field injection water, due to the presence of microorganisms such as bacteria, will cause pipeline corrosion and blockage of oil layers and pipelines, resulting in a decrease in water injection rate and affecting recovery. . The corrosion of oilfield equipment is so serious that it needs to be replaced every less than three or four years. There are also serious bacteria and algae corros...

Claims

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Application Information

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IPC IPC(8): A01N33/12A01P1/00C07C213/04C07C215/40C02F1/50
Inventor 孙安顺
Owner 孙安顺
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