CN104920386A - Multifunctional non-oxidative type sterilization algicide - Google Patents
Multifunctional non-oxidative type sterilization algicide Download PDFInfo
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Abstract
The invention provides a multifunctional non-oxidative type sterilization algicide and belongs to the technical field of water processing. The multifunctional non-oxidative type sterilization algicide is composed of, by weight, 15-30% of compound quaternary ammonium salt, 3-4% of isothiazolinone, 6-8% of penetrating agents T, 15-30% of polymaleic anhydride, 5-10% of zinc salt, 3-5% of methyl thiazolyl tetrazolium, 3-5% of composite organic amine and the balance water. The multifunctional non-oxidative type sterilization algicide integrates sterilization, algae removal, scale inhibition and corrosion inhibition functions. All components of the sterilization algicide have good intermiscibility, cooperativity and complementarity, and the sterilization algicide can replace an existing sterilization algicide with a single function. Both the formula and the preparing method of the sterilization algicide are environmentally friendly, the adopted compound raw materials do not contain phosphorus, eutrophication of water is avoided, the environment cannot be polluted by discharged water, the preparing method is simple and easy to implement, a clean process is achieved, and three industrial wastes are avoided.
Description
Technical field
The present invention relates to a kind of Non-oxidized Biocidal algae-killing agent, particularly a kind of multi-functional Non-oxidized Biocidal algae-killing agent, belongs to water-treatment technology field.
Background technology
Water treatment agent is water for industrial use, chemical agent required in domestic water, wastewater treatment process, by using these chemical agents, can make the quality requirement that water reaches certain.Water with the contact process of air, can by air with dust, microorganism, dusty gas is (as SO
2, H
2s, NH
3deng) or insect bring water system into, cause water pollution, cause corrosion or the problem such as dirt deposition, wherein the harm especially severe that brings of microorganism.An important feature of microbiologic(al) corrosion is that corrosion rate concentrates on part, mainly due to microbial reproduction will produce sour environment, as sulfate reducing bacteria produces hydrogen sulfide gas, the sour environment that sulphur bacteria, iron bacteria and wire bacterium produce, cause local corrosion, finally will cause serious spot corrosion until perforation, it endangers especially severe.
At present, conventional water treatment sterilizing bath agent mainly contains two large classes, i.e. oxidative bactericide and non-oxidative bactericide.Wherein non-oxidative bactericide uses at most at home, and the Non-oxidized Biocidal algae-killing agent that technology is more ripe is quaternary ammonium salt and isothiazolinone, all has the features such as wide spectrum, efficient, low toxicity.
Recirculating cooling water system is due to the impact of the factors such as air pollution, water temperature rising, water velocity change, cycles of concentration raising, processing medium leakage and work condition environment, the harm brought to system shows hardware and corrosive pipeline highlightedly, sedimental precipitation and attachment, microbial growth and foundry loam are formed, these problems can interact, form vicious circle, endanger very large.Existing water treatment Biocidal algae-killing agent can play sterilization, algae removal, stripping effect substantially, but function ratio is more single, usually need with corrosion inhibiter, antisludging agent with the use of.When jointly using between medicament, may antagonism be produced, drug effect is reduced, so must must consider to mix, the problem such as compatibility, also need to do a large amount of work and screen suitable with it corrosion inhibiter, antisludging agent.
Based on the problems referred to above, be necessary to develop a kind of multifunctional sterilization algicide simultaneously with sterilization algae removal, scale inhibition, corrosion inhibition, this kind of medicament also required efficiently, greenization, cost is low, production and transport are safe, dispensing is convenient.This kind of multifunctional water treating agent can add new vitality to domestic market undoubtedly, and its market demand will have development prospect.
Summary of the invention
The object of the present invention is to provide a kind of multi-functional Non-oxidized Biocidal algae-killing agent simultaneously with sterilization algae removal, scale inhibition, corrosion inhibition, and there is the features such as efficient, greenization, preparation method are simple.
Object of the present invention realizes by the following technical solutions:
A kind of multi-functional Non-oxidized Biocidal algae-killing agent, its ingredients by weight percentage consists of:
Preferred further, described compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in described mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 60 ~ 90%.
Preferred further, described isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in described mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 10 ~ 40%.
Preferred further, the mean molecule quantity of described polymaleic anhydride is greater than 5500.
Preferred further, described nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in described mixture, the mass fraction of BTA is 50 ~ 60%.
Preferred further, described compound organic amine is the mixture of triethanolamine and diisopropylamine, and in described mixture, the mass fraction of triethanolamine is 40 ~ 50%.
Preferred further, the step of its preparation method is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 20 ~ 30 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. to stir 40 ~ 60 minutes;
(3) finally add compound organic amine in a kettle. to stir after 10 ~ 20 minutes, add nitrogen azoles and stir 20 ~ 30 minutes, after stirring, namely obtain product.
The invention has the beneficial effects as follows:
(1) the present invention has sterilization algae removal, scale inhibition, corrosion inhibitive function simultaneously, and each component of the present invention has good intermiscibility, concertedness and complementarity, alternative existing simple function Biocidal algae-killing agent.
(2) formula of the present invention and the equal greenization of preparation method.Not phosphorous in the composite raw material that the present invention adopts, can not cause body eutrophication, draining can not to environment; And preparation method's simple possible of the present invention, be cleaning procedure, discharge without three industrial wastes.
(3) component compound quaternary ammonium salt of the present invention and isothiazolinone are the main active of sterilization algae removal effect, compound quaternary ammonium salt and isothiazolinone is composite has synergistic function, then add penetrant t to improve sterilizing peel-off ability.The present invention is adding less, 80-100mg.L
-1impact is added in circulation, can play a role rapidly, and the good results are evident for 10 hours.
(4) the composite upper macromolecule polymaleic anhydride of the present invention, mainly plays scale-inhibiting properties.Polymaleic anhydride has high efficiency dispersion, with Ca on the active growth point that they can be adsorbed onto calcium carbonate crystal
2+chelating, inhibits lattice to grow up to certain direction, and lattice is distorted childlike, carboxyl (-COOH) quantity is more, and scale inhibition effect is better.Add zinc salt can with the polymaleic anhydride complex reaction of HMW, make solution-stabilized.
(5) the composite upper nitrogen azoles of the present invention and compound organic amine, mainly play corrosion inhibition, have good corrosion inhibition to copper, aluminium or albronze material.Phenylpropyl alcohol triazole and methyl phenylpropyl alcohol triazole composite, function is supplemented mutually; Be dissolved in compound organic amine with nitrogen azoles, quality is more stable, and compound organic amine also has corrosion mitigating effect.Nitrogen azoles can be dissociated into anion in water, then generates a kind of insoluble stable comple with copper ion complexing, and this complex compound is adsorbed on metal surface, forms one deck very firmly skin covering of the surface, and protection copper and other metal are from the corrosion of air and hazardous medium.
Reagent combination of the present invention belongs to Phosphateless environmentally friendly, has the advantages such as treatment effect is strong, integrated cost is low.In thermoelectricity subsidiary factory of Anhui group, recirculating cooling water system processes, and by a wheat harvesting period ruuning situation, achieves good effect.Carrying out practically parameter is as follows:
(1) bacterium algae: before adding medicament of the present invention, this factory turbidity of circulating water about 25FTU, in water, heterotroph number is 6 × 10
6individual/mL, iron bacteria are 750/mL, sulfate reducing bacteria is 300/mL, and use medicament of the present invention after 10 hours, in water, heterotroph number is 200/mL, and iron bacteria and sulphate bacterium are that after zero, one month, the turbidity of cycle water reaches 1.2FTU substantially.
(2) COD: when just having brought into use medicament of the present invention, COD value is 280mg/L, after using one month, COD value is between 20-50mg/L, and achieving cycle water can discharge in scope up to standard.(originally long-term overflow COD is about 150mg/L)
(3) total phosphorus: since use medicament of the present invention, cycle water phosphorus content obtains containment and on a declining curve, uses one month later detection cycle water phosphorus content be only 0.3mg/L, be less than 3.5 ~ 5.5mg/L far below former promise.Due to not phosphorous, decrease the breeding of microorganism in circulation, the consumption of medicament can be further reduced.
(4) vacuum: after using medicament of the present invention, owing to not producing new dirt in system, old dirt is constantly stripped, and vacuum maintains the higher level of about-0.09mpa always, and old recycle column is run, not there is scale formation in condenser, meets service requirement.
(5) after using a wheat harvesting period, oil cooler is cleaned, do not find the phenomenons such as oil cooler corrosion and scaling.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, set forth the present invention further, but following embodiment being only the preferred embodiments of the present invention, and not all.Based on the embodiment in embodiment, those skilled in the art under the prerequisite not making creative work obtain other embodiment, all belong to protection scope of the present invention.
Embodiment 1: a kind of multi-functional Non-oxidized Biocidal algae-killing agent of the present invention, its ingredients by weight percentage consists of:
Wherein, compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 70%; Isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 20%; The mean molecule quantity of polymaleic anhydride is greater than 5500; Nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in mixture, the mass fraction of BTA is 50%; Compound organic amine is the mixture of triethanolamine and diisopropylamine, and in mixture, the mass fraction of triethanolamine is 40%.
The step of preparation method of the present invention is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 20 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. and stir 40 minutes;
(3) finally add after compound organic amine stirs 10 minutes in a kettle., add nitrogen azoles and stir 20 minutes, after stirring, namely obtain product.
Embodiment 2: a kind of multi-functional Non-oxidized Biocidal algae-killing agent of the present invention, its ingredients by weight percentage consists of:
Wherein, compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 80%; Isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 30%; The mean molecule quantity of polymaleic anhydride is greater than 5500; Nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in mixture, the mass fraction of BTA is 50%; Compound organic amine is the mixture of triethanolamine and diisopropylamine, and in mixture, the mass fraction of triethanolamine is 50%.
The step of preparation method of the present invention is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 25 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. and stir 50 minutes;
(3) finally add after compound organic amine stirs 15 minutes in a kettle., add nitrogen azoles and stir 25 minutes, after stirring, namely obtain product.
Embodiment 3: a kind of multi-functional Non-oxidized Biocidal algae-killing agent of the present invention, its ingredients by weight percentage consists of:
Wherein, compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 60%; Isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 40%; The mean molecule quantity of polymaleic anhydride is greater than 5500; Nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in mixture, the mass fraction of BTA is 60%; Compound organic amine is the mixture of triethanolamine and diisopropylamine, and in mixture, the mass fraction of triethanolamine is 50%.
The step of preparation method of the present invention is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 30 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. and stir 50 minutes;
(3) finally add after compound organic amine stirs 20 minutes in a kettle., add nitrogen azoles and stir 30 minutes, after stirring, namely obtain product.
Embodiment 4: a kind of multi-functional Non-oxidized Biocidal algae-killing agent of the present invention, its ingredients by weight percentage consists of:
Wherein, compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 90%; Isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 30%; The mean molecule quantity of polymaleic anhydride is greater than 5500; Nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in mixture, the mass fraction of BTA is 55%; Compound organic amine is the mixture of triethanolamine and diisopropylamine, and in mixture, the mass fraction of triethanolamine is 45%.
The step of preparation method of the present invention is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 30 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. and stir 50 minutes;
(3) finally add after compound organic amine stirs 10 minutes in a kettle., add nitrogen azoles and stir 20 minutes, after stirring, namely obtain product.
Embodiment 5: a kind of multi-functional Non-oxidized Biocidal algae-killing agent of the present invention, its ingredients by weight percentage consists of:
Wherein, compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 90%; Isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 10%; The mean molecule quantity of polymaleic anhydride is greater than 5500; Nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in mixture, the mass fraction of BTA is 60%; Compound organic amine is the mixture of triethanolamine and diisopropylamine, and in mixture, the mass fraction of triethanolamine is 40%.
The step of preparation method of the present invention is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 25 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. and stir 40 minutes;
(3) finally add after compound organic amine stirs 20 minutes in a kettle., add nitrogen azoles and stir 20 minutes, after stirring, namely obtain product.
Embodiment 6: a kind of multi-functional Non-oxidized Biocidal algae-killing agent of the present invention, its ingredients by weight percentage consists of:
Wherein, compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 70%; Isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 20%; The mean molecule quantity of polymaleic anhydride is greater than 5500; Nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in mixture, the mass fraction of BTA is 55%; Compound organic amine is the mixture of triethanolamine and diisopropylamine, and in mixture, the mass fraction of triethanolamine is 45%.
The step of preparation method of the present invention is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 25 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. and stir 50 minutes;
(3) finally add after compound organic amine stirs 15 minutes in a kettle., add nitrogen azoles and stir 25 minutes, after stirring, namely obtain product.
In order to prove sterilization algae removal of the present invention, scale inhibition, corrosion inhibition, the Reliable Evaluating Methods of Their Performance of the multi-functional Non-oxidized Biocidal algae-killing agent of above-described embodiment gained is as follows:
Bactericidal property measures
Recirculated cooling water bactericidal property evaluation (DL/T 1116-2009) is adopted to measure:
Instrument and equipment: balance, sensibility reciprocal 0.1mg, constant-temperature table, precision ± 2 DEG C, medical steam sterilization pan, oven, filtration sterilization equipment, biomicroscope;
Experiment condition: shaking table temperature 40 DEG C, rotating speed 100r/min ~ 120 r/min, experimental period t are 10 hours, and test water sample is thermoelectricity subsidiary factory of Anhui group recirculated cooling water.Killing rate is calculated as follows:
Killing rate Y=(A
0-A
t/ A
0) × 100%
A
0---the bacterium sum that blank assay water sample is initial;
A
t---the bacterium sum that experiment water sample detects when t.
Bactericidal property measurement result sees the following form 1
Table 1
As shown in Table 1, the killing rate of the multi-functional non-oxydizing sterilization algicide of embodiment 1 to 6 under 100mg/L condition is all more than 97.8, wherein best with the medicament disinfecting effect of embodiment 3.
Scale-inhibiting properties measures
Static-state scale inhibition test method(s) (GB16632-1996) is adopted to carry out scale-inhibiting properties mensuration:
Instrument and equipment: acidometer pHS-3C type, precision ± 0.02; Electric-heated thermostatic water bath HHS21-4 type, precision 1 DEG C;
Experimental condition: test temperature (80 ± 1) DEG C, test period 72h, test water is thermoelectricity subsidiary factory of Anhui group supplementing water.Ca before and after test
2+demarcate with EDTA standard liquid.Scale inhibition performance is calculated as follows:
Scale inhibition performance η=(X
2-X
1)/(X
0-X
1) × 100%
X
1, X
2---do not add medicament and the test water Ca adding medicament
2+mass concentration, mg/L;
X
0---Ca during concentrated 7 times of supplementing water before test
2+mass concentration theoretical value, mg/L.
Scale-inhibiting properties measurement result sees the following form 2:
Table 2
As shown in Table 1, the static-state scale inhibition rate bacterium of the multi-functional non-oxydizing sterilization algicide of embodiment 1 to 6 under 100mg/L condition is more than 95.7%, wherein best with the scale inhibition effect of embodiment 4.
Corrosion inhibition measures
Rotary hanging plate weight-loss method (HG/T 2159-1991) is adopted to carry out corrosion inhibition mensuration;
Instrument and equipment: rotary hanging plate corrosion test instrument RCC-III type;
Experimental condition: test temperature 45 DEG C, rotary speed 80r/min, test period 72h, test water is thermoelectricity subsidiary factory of Anhui group cycle water, and test piece is cooling and contraction standard corrosion coupon I type, and rate of corrosion is calculated as follows:
Y
0＝8760×m
0×10/(s×ρ×t)
Y
1＝8760×m×10/(s×ρ×t)
W＝Y
0-Y
1/Y
0×100％
Y
0---the rate of corrosion of blank test test piece, mm/a;
Y
1---the rate of corrosion of test piece after adding medicine, mm/a;
W---corrosion inhibition rate, %;
M0---the mass loss of blank test test piece, g;
M---the mass loss of test piece after adding medicine, g;
S---strip amasss, cm
2;
ρ---test piece density, g/cm
3;
T---test period, h;
8760---the hourage suitable with 1 year, h/a;
10---the millimeter suitable with 1cm; Mm/cm.
Corrosion inhibition measurement result sees the following form 3:
Table 3
As shown in Table 3, the corrosion inhibition of the multi-functional non-oxydizing sterilization algicide of embodiment 1 to 6 under 100mg/L condition is good, and its Chinese medicine is the most obvious to the corrosion mitigating effect of brass test piece, and corrosion inhibition rate can reach 91.2%.
To sum up, can find out from table 1, table 2 and table 3, the sterilization of medicament of the present invention, scale inhibition, corrosion inhibition are all more excellent, show that the present invention has sterilization algae removal, scale inhibition, corrosion inhibitive function simultaneously, each component has good intermiscibility, concertedness and complementarity, alternative existing simple function Biocidal algae-killing agent.
The foregoing describe principal character of the present invention and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification is only preference of the present invention; be not used for limiting the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. a multi-functional Non-oxidized Biocidal algae-killing agent, is characterized in that, its ingredients by weight percentage consists of:
Compound quaternary ammonium salt 15 ~ 30%
Isothiazolinone 3 ~ 4%
Penetrant t 6 ~ 8%
Polymaleic anhydride 15 ~ 30%
Zinc salt 5 ~ 10%
Nitrogen azoles 3 ~ 5%
Compound organic amine 3 ~ 5%
The water of surplus.
2. the multi-functional Non-oxidized Biocidal algae-killing agent of one according to claim 1, it is characterized in that, described compound quaternary ammonium salt is the mixture of dodecyl benzyl dimethyl ammonium chloride and myristyl benzyl dimethyl ammonium chloride, and in described mixture, the mass fraction of dodecyl benzyl dimethyl ammonium chloride is 60 ~ 90%.
3. the multi-functional Non-oxidized Biocidal algae-killing agent of one according to claim 1, it is characterized in that, described isothiazolinone is the mixture of 5-chloro-2-methyl-4-different thiophene quinoline-3-ketone and MIT, and in described mixture, the mass fraction of the different thiophene quinoline of 5-chloro-2-methyl-4--3-ketone is 10 ~ 40%.
4. the multi-functional Non-oxidized Biocidal algae-killing agent of one according to claim 1, it is characterized in that, the mean molecule quantity of described polymaleic anhydride is greater than 5500.
5. the multi-functional Non-oxidized Biocidal algae-killing agent of one according to claim 1, is characterized in that, described nitrogen azoles is the mixture of BTA and methyl phenylpropyl alcohol triazole, and in described mixture, the mass fraction of BTA is 50 ~ 60%.
6. the multi-functional Non-oxidized Biocidal algae-killing agent of one according to claim 1, is characterized in that, described compound organic amine is the mixture of triethanolamine and diisopropylamine, and in described mixture, the mass fraction of triethanolamine is 40 ~ 50%.
7. the multi-functional Non-oxidized Biocidal algae-killing agent of one according to claim 1, is characterized in that, the step of its preparation method is:
(1) zinc salt and water being added stirring at normal temperature in reactor makes zinc salt fully dissolve, and then adds polymaleic anhydride and stirs 20 ~ 30 minutes;
(2) add compound quaternary ammonium salt, penetrant t and isothiazolinone more in a kettle. to stir 40 ~ 60 minutes;
(3) finally add compound organic amine in a kettle. to stir after 10 ~ 20 minutes, add nitrogen azole and stir 20 ~ 30 minutes, after stirring, namely obtain product.
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| CN107258811A (en) * | 2017-06-23 | 2017-10-20 | 四川奥恒环保科技有限公司 | A kind of highly efficient composite bactericidal algaecide and preparation method thereof |
| CN107347910A (en) * | 2017-06-23 | 2017-11-17 | 四川奥恒环保科技有限公司 | A kind of Biocidal algae-killing agent and preparation method thereof |
| CN108684687A (en) * | 2018-06-25 | 2018-10-23 | 杨飞 | A kind of non-oxydizing sterilization algicide and preparation method thereof |
| CN109997863A (en) * | 2019-04-16 | 2019-07-12 | 广州水漫庭环保科技有限公司 | A kind of composite bactericidal detergent |
| CN112441671A (en) * | 2020-11-03 | 2021-03-05 | 铜陵有色金属集团股份有限公司 | Treatment method for non-ferrous mine ore dressing circulating water volatile gas and application thereof |
| CN112640903A (en) * | 2020-12-23 | 2021-04-13 | 北京瞬行生物科技有限公司 | Composite quaternary ammonium salt disinfectant and preparation method thereof |
| CN115968896A (en) * | 2022-12-27 | 2023-04-18 | 西安吉利电子新材料股份有限公司 | Isothiazolinone bactericide applicable to water treatment system and preparation method thereof |
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