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Sterilization method

A fungicide, weight technology, applied in the fields of botanical equipment and methods, biocides, sterilization/microdynamic water/sewage treatment, etc., can solve the problems of loss of microbicidal efficacy, instability, etc.

Inactive Publication Date: 2013-06-12
北京合创同盛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although 3-isothiazolone compounds are very effective microbicides, they have the disadvantage of being unstable under certain conditions and in the absence of stabilizers, many 3-isothiazolones chemically degrade and lose their microbicidal efficacy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 4,5-dichloro-n-octyl-3-isothiazolone (Dalian Xingyuan Fine Chemical Co., Ltd.), tributyl-tetradecyl phosphonium chloride (Huai'an) into a 100ml glass bottle equipped with a magnetic stirring rod. City Tianchi Chemical Co., Ltd.), dibutyl hydroxytoluene (Shanghai Beiji Biological Technology Co., Ltd.), dodecyl bis(aminoethyl) glycine (Shanxi Xinhe Taiming Chemical Co., Ltd.) and deionized water are mixed and stirred, Get sample 1#.

[0024] The composition of sample 1# is: 4,5-dichloro-n-octyl-3-isothiazolone 6 wt%, tributyl-tetradecyl phosphonium chloride 5 wt%, and dibutyl hydroxytoluene 1 wt% , Dodecylbis(aminoethyl)glycine 2% by weight, deionized water 86% by weight.

[0025] The following describes the static bactericidal effect of heterotrophic bacteria, sulfate-reducing bacteria and iron bacteria using the method of sample 1#.

[0026] (1) Take the strain to be tested and cultivate on the slant medium for 72 hours. The medium is prepared: 15 grams of agar, add appr...

Embodiment 2

[0036] Add 4,5-dichloro-n-octyl-3-isothiazolone, tributyl-tetradecylphosphonium chloride, dibutylhydroxytoluene, dodecane into a 100ml glass bottle equipped with a magnetic stirring rod Di(aminoethyl)glycine and deionized water were mixed and stirred to obtain sample 2#.

[0037] The composition of sample 2# is: 4,5-dichloro-n-octyl-3-isothiazolone 8% by weight, tributyl-tetradecylphosphonium chloride 8% by weight, and dibutylhydroxytoluene 3% by weight , 1% by weight of bis-octylaminoethylglycine, 80% by weight of deionized water.

[0038] Using the 2# sample method, the static sterilization effect of heterotrophic bacteria, the sterilization effect of sulfate reducing bacteria and iron bacteria are shown in Table 1, Table 2 and Table 3, respectively.

Embodiment 3

[0040] Add 4,5-dichloro-n-octyl-3-isothiazolone, tributyl-tetradecylphosphonium chloride, dibutylhydroxytoluene, dodecane into a 100ml glass bottle equipped with a magnetic stirring rod Di(aminoethyl)glycine and deionized water were mixed and stirred to obtain sample 3#.

[0041] The composition of sample 3# is: 4,5-dichloro-n-octyl-3-isothiazolone 4% by weight, tributyl-tetradecylphosphonium bromide 10% by weight, and dibutylhydroxytoluene 2% by weight , Bis-octylaminoethyl glycine 5% by weight, deionized water 79% by weight.

[0042] Using the method of 3# sample, the static sterilization effect of heterotrophic bacteria, the sterilization effect of sulfate reducing bacteria and iron bacteria are shown in Table 1, Table 2 and Table 3, respectively.

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Abstract

The invention discloses a sterilization method, which is characterized in that: a disinfectant used by the method is organic solution dispersoid taking organic solvent as a carrier or aqueous emulsiontaking water as a carrier, and comprises 1 to 10 weight percent of 4,5-dichloro-n-octyl-3-isothiazolone, 1 to 20 weight percent of tributyl-tetradecylphosphonium chloride, 0.5 to 5 weight percent of2,6-di-tert-butyl-4-methylphenol and 0.5 to 5 weight percent of glycine n-[2-(dodecylamino) ethyl]. The method has less medicament consumption in a unit period and has more stable and effective bactericidal effect.

Description

Technical field [0001] The present invention relates to a sterilization method, and more particularly to a method for sterilization treatment using a drug containing 4,5-dichloro-n-octyl-3-isothiazolone. Background technique [0002] In the petrochemical and power industries, fungicides are widely used in circulating cooling water systems, oilfield sewage, and water injection systems to control the reproduction of microorganisms. One of the most effective and commonly used methods to control the growth of microorganisms in the cooling water system is to add a fungicide to the cooling water. For decades, with the higher requirements for the safety, environment and efficiency of the fungicide, various chlorine and bromine , Amines, aldehydes, sulfur-containing, nitrogen-containing, and phosphine-containing fungicides, greatly improving the efficiency of sterilization treatment. [0003] 3-Isothiazolone has been proven to be a safe, efficient, broad-spectrum and environmentally frien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/78A01N57/20A01N31/02A01N37/46A01P1/00C02F1/50
Inventor 赵勇军多文赵新
Owner 北京合创同盛科技有限公司