CN1205136C - Amphoteric bacteria-killing corrosion-inhibitor - Google Patents
Amphoteric bacteria-killing corrosion-inhibitor Download PDFInfo
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- CN1205136C CN1205136C CN 02156473 CN02156473A CN1205136C CN 1205136 C CN1205136 C CN 1205136C CN 02156473 CN02156473 CN 02156473 CN 02156473 A CN02156473 A CN 02156473A CN 1205136 C CN1205136 C CN 1205136C
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- China
- Prior art keywords
- corrosion inhibitor
- alkyl
- sexes
- amphoteric
- disinfecting corrosion
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Abstract
The present invention relates to an amphoteric sterilizing corrosion inhibitor, which belongs to the technical field of water treatment. The amphoteric sterilizing corrosion inhibitor is composed of an alkyl quaternary ammonium inner salt, a quaternary ammonium halide, a nonionic surfacant, a solvent and water. Compared with the conventional sterilizing algaecide, the amphoteric sterilizing corrosion inhibitor is suitable for industrial circulation cooling water and oil field injection water, has favorable sterilizing effects on heterotrophic bacteria (TGB) and sulfate reducing bacteria (SRB) in water, and has excellent stripping and cleaning action and corrosion inhibition to thallose and biological slime.
Description
Technical field
The invention belongs to water-treatment technology field, particularly relate to a kind of both sexes disinfecting corrosion inhibitor.
Background technology
In industrial circulating cooling water system, the microorganism of metallic surface growth forms various types of biological clays.The composition of biological clay comprises microorganism such as algae, bacterium, fungi and the inorganic and organic impurity of all kinds of complexity.These microorganisms are bonded together by the binding of epicyte, make them be difficult to be subjected to biological clay Effect of Environmental in addition, as the influence of sterilant, dirt dispersion agent or other Water Treatment Chemicals.So, the microorganism in the foundry loam than the microorganism of the free growth formula of swimming difficulty kill.And some sterilant also may be attracted to the outer field organic or inorganic foreign material of biological clay and decomposes and lost efficacy.Microorganism in the biological clay not only number is Duoed thousands of up to ten thousand times than planktonic organism, and can cause the hardware underdeposit corrosion, thereby shortens the work-ing life of equipment, reduces the heat exchange effect of interchanger.Therefore, cleaning of Biological Soil in the system is peeled off very necessary.
Usually contain a large amount of bacteriums and other harmful microorganism in the oil field reinjection water, that wherein harm is maximum is sulphate reducing bacteria (SRB).If untimely killing can be brought problems to oil recovery, as the contamination and plugging of oil reservoir, the corrosion of line equipment etc.And influence crude production rate thus, increase production cost.
At present the main method of sterilization algae removal is to add non-oxidizable sterilant such as 1227 and oxidizing bactericide chlorine etc., but the resistance that is produced behind the life-time service makes medicament expense rise day by day.
Summary of the invention
The present invention the invention provides the good both sexes disinfecting corrosion inhibitor of a kind of result of use for solving the problem that known technology exists.
The preparation method of both sexes disinfecting corrosion inhibitor of the present invention is as follows: at room temperature, respectively successively with quaternary ammonium halide, nonionogenic tenside, solvent, water adds in the reactor, stirs 20～40 minutes down at 80～100 ℃, adds alkyl quaternary amine inner salt again and stirs 20～30 minutes.
The present invention adopts following technical scheme:
The both sexes disinfecting corrosion inhibitor is by alkyl quaternary amine inner salt, quaternary ammonium halide, and nonionogenic tenside, solvent and water are formed.
The present invention can also adopt following technical measures: above-mentioned both sexes disinfecting corrosion inhibitor is characterized in: the structural formula of alkyl quaternary amine inner salt is:
Wherein: R
1=C
8～C
18Alkyl
R
2=C
1～C
4Alkyl
R
3＝CH
3，C
2H
5
R
4=C
1～C
3Alkyl
X=Cl, Br, I or OSO
3, CH
3COOH.
Above-mentioned both sexes disinfecting corrosion inhibitor is characterized in: alkyl quaternary amine inner salt weight content accounts for 15～55% of total amount.
Above-mentioned both sexes disinfecting corrosion inhibitor is characterized in: quaternary ammonium halide is an alkyl-dimethyl benzyl ammonium halide, alkyl trimethyl ammonium halide, two alkyl dimethyl ammonium halide, and weight content accounts for the 5-20% of total amount.
Above-mentioned both sexes disinfecting corrosion inhibitor is characterized in: quaternary ammonium halide is two alkyl dimethyl ammonium halides.
Above-mentioned both sexes disinfecting corrosion inhibitor is characterized in: nonionic surface active agent is a fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, and its weight content accounts for 2～10% of total amount.
Above-mentioned both sexes disinfecting corrosion inhibitor is characterized in: solvent is N-N-dimethyl formamide, ethanol or ethylene glycol, and its weight content accounts for 1～20% of total amount.
The working concentration of amphoteric disinfecting corrosion inhibitor of the present invention in water system decided on the biological clay situation on bacterium in the water and the tube wall.The general impact type dosing method that adopts, working concentration should remain on 80～150ppm, and medicament preferably will continue 24～48 hours in system.
Advantage that the present invention has and positively effect: a kind of both sexes disinfecting corrosion inhibitor of the present invention's research and development, it is compared with the conventional sterilization algicide, these both sexes disinfecting corrosion inhibitor structure is innovated to some extent, be applicable to industrial circulating cooling water and oil-field flooding, heterotrophic bacteria in the water (TGB) and sulphate reducing bacteria (SRB) are had good killing effect.Its sterilization effect is better than 1227 and bacterium algae and biological clay had splendid peeling off cleanup action and have corrosion inhibition concurrently.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, enumerate following example now and be elaborated.
Experimental technique: in water sample, add a certain amount of amphoteric disinfecting corrosion inhibitor, behind contact certain hour under 35 ± 2 ℃, measure remaining bacterium number, obtain sterilizing rate in former water sample bacteria containing amount contrast.Measure sulphate reducing bacteria and adopt MPN method (test bottle is that the SRB-HX type that chemical reagent factory of Beijing Huaxing produces is surveyed the bacterium bottle)."+" expression has bacteria growing, "-" expression asepsis growth.Measure heterotrophic bacteria and adopt plate count.
Embodiment 1
At room temperature, in reactor, respectively successively with the two alkyl dimethyl ammonium halides of 10g, 5g fatty alcohol-polyoxyethylene ether nonionogenic tenside, 10gN-N-solvent dimethylformamide, 45g water add in the reactor, stir 30 minutes down at 90 ℃, add 30g alkyl quaternary amine inner salt again and stirred 25 minutes, can make amphoteric disinfecting corrosion inhibitor of the present invention.The structural formula of alkyl quaternary amine inner salt is:
Product of the present invention is the amphoteric disinfecting corrosion inhibitor, has good sterilization and corrosion mitigating effect.
Embodiment 2
The amphoteric disinfecting corrosion inhibitor is killed heterotrophic bacteria performance test in the water:
In the combination of the quality percentage of amphoteric disinfecting corrosion inhibitor of the present invention, when both sexes alkyl quaternary amine inner salt is 15～55 and 5～30 quaternary ammonium halide, the amphoteric disinfecting corrosion inhibitor that 2～10,1～20 solvent and water are mixed with is 2.1 * 10 to first bacterium number
6Individual/mL kills test, and killing effect is as shown in table 1.
Table 1 amphoteric disinfecting corrosion inhibitor is killed the effect of heterotrophic bacteria in the water
Amphoteric disinfecting corrosion inhibitor/mgL
-1Rate/% kills livestock
3 92.1
6 94.2
8 99.8
9 100
When medicament effective concentration was 9mg/L, sterilizing rate reached 100% by the listed data declaration of table 1 amphoteric disinfecting corrosion inhibitor of the present invention.
Embodiment 3
The both sexes alkyl quaternary amine inner salt of amphoteric disinfecting corrosion inhibitor of the present invention is 35% o'clock, and is composite with the quaternary ammonium halide of different concns, as shown in table 2 to the influence of sterilization effect.
The quaternary ammonium halide of different concns is to the influence of sterilization effect in the table 2 amphoteric disinfecting corrosion inhibitor
Amphoteric disinfecting corrosion inhibitor concentration
35% alkyl quaternary amine inner salt sterilant %
mg/L
10% quaternary ammonium halide 100 97
15% quaternary ammonium halide 100 99.9
20% quaternary ammonium halide 100 100
30% quaternary ammonium halide 100 100
Annotate: blank heterotrophic bacteria sum 2 * 10
6Individual/mL.
By table 2 as seen, along with the increase of halide concentration, sterilization effect increases, and 15% has reached best effect when above.
Embodiment 4
The comparison of amphoteric disinfecting corrosion inhibitor of the present invention and dodecyl benzyl dimethyl ammonium chloride (1227) killing effect is shown in table 3, table 4.
Table 3 amphoteric disinfecting corrosion inhibitor and 1227 is killed the heterotrophic bacteria effect relatively
Sterilizing rate %
Pharmacy quality concentration/mgL
-1
Amphoteric disinfecting corrosion inhibitor 1227
3 92.1 75.6
6 94.2 88.8
9 100 92.5
Annotate: pharmacy quality concentration (mg/L) is by effective constituent, and 1227 is Tianjin Chemical Research ﹠ Desing Inst production.Just the bacterium number is 2.4 * 10
6Individual/mL.
Table 4 amphoteric disinfecting corrosion inhibitor and 1227 is killed the sulphate reducing bacteria effect relatively
| The medicament numbering | Pharmacy quality concentration mg/L | Six bottles of parallel sterilization results | The rate of killing livestock (%) |
| 10 1 10 2 10 3 10 4 10 5 10 6 | |||
| The amphoteric disinfecting corrosion inhibitor | 18 | -- -- -- -- -- -- | 100 |
| 1227 | 18 | ++ ++ ++ +- +- -- | 78.3 |
| The amphoteric disinfecting corrosion inhibitor | 27 | -- -- -- -- -- -- | 100 |
| 1227 | 27 | ++ ++ ++ +- -- -- | 90.0 |
| The amphoteric disinfecting corrosion inhibitor | 36 | -- -- -- -- -- -- | 100 |
| 1227 | 36 | -- -- -- -- -- -- | 100 |
Annotate: drug concentration is by effective ingredient, and 1227 is Tianjin Chemical Research ﹠ Desing Inst production.Just the bacterium number is 6.0 * 10
4Individual/mL.
By table 3, table 4 as can be known, compare with 1227, reach identical bactericidal level, both sexes bactericidal agent consumption is low, respond well, and is effective especially to sulphate reducing bacteria.
Embodiment 5
The laboratory evaluation of amphoteric disinfecting corrosion inhibitor corrosion mitigating effect of the present invention:
Corrosive fluid is the South China Sea Oilfield oily(waste)water, adopts static steel, the not pre-film of lacing film, and the corrosion mitigating effect of amphoteric disinfecting corrosion inhibitor is as shown in table 5.
The corrosion mitigating effect of table 5 amphoteric disinfecting corrosion inhibitor
Amphoteric disinfecting corrosion inhibitor (mg/L)
Test event
20 40
Corrosion inhibition rate/% 43.5 69.0
Because amphoteric disinfecting corrosion inhibitor of the present invention has multiple long alkyl chain length, so have certain rust inhibition.
Amphoteric disinfecting corrosion inhibitor of the present invention has sterilization, algae removal, cleaning, corrosion mitigating effect, is a kind of excellent property, the sterilant that usability is wide.The cost of amphoteric disinfecting corrosion inhibitor and 1227 suitable has high cost performance.
Claims (7)
1. both sexes disinfecting corrosion inhibitor is characterized in that: the both sexes disinfecting corrosion inhibitor is by alkyl quaternary amine inner salt, quaternary ammonium halide, and nonionogenic tenside, solvent and water are formed.
2. both sexes disinfecting corrosion inhibitor according to claim 1 is characterized in that: the structural formula of alkyl quaternary amine inner salt is:
Wherein: R
1=C
8～C
18Alkyl
R
2=C
1～C
4Alkyl
R
3＝CH
3，C
2H
5
R
4=C
1～C
3Alkyl
X=Cl, Br, I or OSO
3, CH
3COOH.
3. both sexes disinfecting corrosion inhibitor according to claim 1 is characterized in that: the weight content of alkyl quaternary amine inner salt accounts for 15～55% of total amount.
4. both sexes disinfecting corrosion inhibitor according to claim 1 is characterized in that: quaternary ammonium halide is an alkyl-dimethyl benzyl ammonium halide, alkyl trimethyl ammonium halide, two alkyl dimethyl ammonium halide, and weight content accounts for the 5-20% of total amount.
5. both sexes disinfecting corrosion inhibitor according to claim 4 is characterized in that: quaternary ammonium halide is two alkyl dimethyl ammonium halides.
6. both sexes disinfecting corrosion inhibitor according to claim 1 is characterized in that: nonionic surface active agent is a fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, and its weight content accounts for 2～10% of total amount.
7. both sexes disinfecting corrosion inhibitor according to claim 1 is characterized in that: solvent is N-N-dimethyl formamide, ethanol or ethylene glycol, and its weight content accounts for 1～20% of total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156473 CN1205136C (en) | 2002-12-18 | 2002-12-18 | Amphoteric bacteria-killing corrosion-inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156473 CN1205136C (en) | 2002-12-18 | 2002-12-18 | Amphoteric bacteria-killing corrosion-inhibitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1418830A CN1418830A (en) | 2003-05-21 |
| CN1205136C true CN1205136C (en) | 2005-06-08 |
Family
ID=4752750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02156473 Expired - Fee Related CN1205136C (en) | 2002-12-18 | 2002-12-18 | Amphoteric bacteria-killing corrosion-inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1205136C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100581641C (en) * | 2006-03-20 | 2010-01-20 | 天津化工研究设计院 | Bactericide for reverse osmosis membrane and method for preparing the same |
| CN101139113B (en) * | 2007-08-01 | 2011-01-19 | 李贵生 | High-efficienct algae-removing and clean water reduction method |
| CN101779668B (en) * | 2009-12-21 | 2011-09-21 | 许庆华 | Attapulgite circulating water sterilizing algicide |
| CN108822996A (en) * | 2018-06-07 | 2018-11-16 | 张福新 | The efficient adhesive mud remover of SQ-924 |
| CN109796069A (en) * | 2018-12-05 | 2019-05-24 | 天津正达科技有限责任公司 | A kind of Clear circulating cooling water system non oxidizing bactericide |
-
2002
- 2002-12-18 CN CN 02156473 patent/CN1205136C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1418830A (en) | 2003-05-21 |
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Granted publication date: 20050608 Termination date: 20161218 |