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Lauryl guanidine acetate bactericide for water treatment and preparation method thereof

A technology of dodecylguanidine acetate and bactericide, which is applied in the field of water treatment dodecylguanidine acetate bactericide and its preparation, and can solve the problems of low purity of bactericidal reagent, narrow application range, and poor bactericidal effect, etc. problem, to achieve good sterilization effect, low cost and long-lasting effect

Inactive Publication Date: 2015-04-01
SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the above technical problems, the present application provides a dodecylguanidine acetate bactericide for water treatment and its preparation method, which solves the technical problems of low purity, poor bactericidal effect, high cost and narrow application range of existing water treatment bactericidal agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 100 parts of O-methylisourea sulfate according to the ratio in parts by weight; 60 parts of sodium hydroxide; 70 parts of sodium acetate; 50 parts of methanol; 10 parts of dodecylamine; 5 parts of ethanol; 0.5 parts; 5 parts of acetic acid; 1 part of absolute ethanol; 30 parts of dimethyl sulfate; 1 part of calcium alkyl salicylate; 5 parts of urea; 1 part of glacial acetic acid; Sodium metaphosphate is 1 part.

[0026] Put O-methylisourea sulfate, sodium hydroxide, methanol and sodium acetate into a four-neck flask and heat to 35°C, stir for 50 minutes, add dodecylamine, urea, ethanol and dimethyl sulfate, and heat up to 40°C , heated and dissolved in an oil bath, and reacted for 4h.

[0027] Add acetic acid to distill to recover ethanol, wash the residue with absolute ethanol, filter it with suction and dry it in an oven to obtain a white powdery solid dodecylguanidine acetate fungicide.

[0028] Purity 96%; 98% sterilization rate for Escherichia coli, Staphyl...

Embodiment 2

[0030] Weigh 100 parts of O-methylisourea sulfate according to the proportion in parts by weight; 80 parts of sodium hydroxide; 90 parts of sodium acetate; 70 parts of methanol; 30 parts of dodecylamine; 25 parts of ethanol; 2.5 parts; 15 parts of acetic acid; 20 parts of absolute ethanol; 50 parts of dimethyl sulfate; 20 parts of calcium alkyl salicylate; 25 parts of urea; 20 parts of glacial acetic acid; Sodium metaphosphate is 5 parts.

[0031] Put O-methylisourea sulfate, sodium hydroxide, methanol and sodium acetate into a four-neck flask and heat to 40°C, stir for 90 minutes, add dodecylamine, urea, ethanol and dimethyl sulfate, and heat up to 45°C , heated to dissolve in an oil bath, and reacted for 6h.

[0032] Add acetic acid to distill to recover ethanol, wash the residue with absolute ethanol, filter it with suction and dry it in an oven to obtain a white powdery solid dodecylguanidine acetate fungicide.

[0033] The purity is 97%; the sterilization rate is 98.5% fo...

Embodiment 3

[0035] Weigh 100 parts of O-methylisourea sulfate according to the proportion in parts by weight; 65 parts of sodium hydroxide; 75 parts of sodium acetate; 55 parts of methanol; 15 parts of dodecylamine; 10 parts of ethanol; 1 part of butyl diphenylamine ; 8 parts of acetic acid; 5 parts of absolute ethanol; 35 parts of dimethyl sulfate; 5 parts of calcium alkyl salicylate; 10 parts of urea; Sodium is 2 parts.

[0036] Put O-methylisourea sulfate, sodium hydroxide, methanol and sodium acetate into a four-necked flask and heat to 36°C, stir for 60 minutes, add dodecylamine, urea, ethanol and dimethyl sulfate, and heat up to 42°C , heated and dissolved in an oil bath, and reacted for 4.6h.

[0037] Add acetic acid to distill to recover ethanol, wash the residue with absolute ethanol, filter it with suction and dry it in an oven to obtain a white powdery solid dodecylguanidine acetate fungicide.

[0038] The purity is 98%; the sterilization rate is 99% for Escherichia coli, Sta...

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PUM

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Abstract

The invention discloses a lauryl guanidine acetate bactericide for water treatment and a preparation method thereof. The lauryl guanidine acetate bactericide is prepared by the steps of weighing O-methyl-isourea sulfate, sodium hydroxide, sodium acetate, methanol, lauryl amine, ethanol, a polymerization inhibitor, acetic acid, anhydrous ethanol, dimethyl sulfate, a dispersant, urea, glacial acetic acid, amino trimethylene phosphonic acid and sodium hexametahposphate in parts by weight, and mixing uniformly. The purity of the bactericide is 96-100%; the sterilizing rate to escherichia coli, staphylococcus aureus, candida albicans, neisseria gonorrhoeae, penicillium notatum, aspergillus, saprophytic bacteria and salmonella is 98-100%; and the sterilizing rate is 97-99% after the bactericide is placed for one month at 50-60 DEG C, the sterilizing rate is 96-98% after the bactericide is placed for half a year at 40-50 DEG C, and the sterilizing rate is 94-98% after the bactericide is placed for 1-2 years at room temperature.

Description

technical field [0001] The application belongs to the field of environmental protection reagent technology, and in particular relates to a dodecylguanidine acetate bactericide for water treatment with low cost and remarkable bactericidal effect and a preparation method thereof. Background technique [0002] Water treatment bactericide is also called bactericide and algicide, sludge stripper or anti-sludge agent. A class of chemicals that can inhibit the growth of bacteria, algae and microorganisms in dodecylamine to prevent the formation of microbial slime and cause harm to the system. Including oxidizing fungicides, such as chlorine, sodium hypochlorite, bleaching powder, ozone, chloramine, etc.; non-oxidizing fungicides, such as dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl bromide Ammonium, dithiocyanomethane, etc.; heavy metal compounds, such as mercuric oxide, mercuric chloride, mercuric fluoride, etc.; slime fungicides, such as rosin amine, hydrog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/44A01P1/00A01P3/00C02F1/50
Inventor 夏戊君凌云陆赛君金可心陈亮程胜凌天阳陆鼎
Owner SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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