CN109418262A - A kind of preservative and preparation method thereof - Google Patents
A kind of preservative and preparation method thereof Download PDFInfo
- Publication number
- CN109418262A CN109418262A CN201710753821.6A CN201710753821A CN109418262A CN 109418262 A CN109418262 A CN 109418262A CN 201710753821 A CN201710753821 A CN 201710753821A CN 109418262 A CN109418262 A CN 109418262A
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- Prior art keywords
- preservative
- bromo
- kathon
- brominated
- stabilizer
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of preservatives and preparation method thereof, the following component including mass percentage: 0.7-7 parts of Kathon CG, brominated stabilizer 0.1-10 parts, 40-90 parts of water；Preservative of the present invention avoids introducing heavy metal or nitrate, no pollution to the environment, while will not destroy by the physical aspect of protection product；Preservative of the present invention ensure that by the long-time stability of protection product, will be saved 30 days under 54 DEG C of environment by protection product, 5- chloro-2-methyl isothiazolinone content no consumption in system；Preservative of the present invention can be diluted to various concentration, will not crosslink reaction, have a wide range of application.
Description
Technical field
The present invention relates to anti-corrosion reagent technique fields more particularly to a kind of preservative and preparation method thereof.
Background technique
The most widely used preservative is isothiazolinone product currently on the market, and especially 5- chloro-2-methyl is different
Thiazolinone, referred to as Kathon CG are usually sold with the raw material form of 14% concentrate, it occupies the city of industrial preservative 40% at present
?.Kathon CG 14% itself is unstable, and the final products prepared after being diluted by Kathon CG 14% are more unstable, needs the nitric acid of high concentration
Salt is stablized, such as most widely used in the world Tao Shi Kathon LXE, is exactly the dilution of Kathon CG 14%, it be with copper nitrate,
As stabilizer, other is water for magnesium nitrate and magnesium chloride.Kathon LXE or similar product formula are as follows:
14% 7-20% of Kathon CG
Copper nitrate 0.1-0.3%
Magnesium nitrate 1-20%
Water 80-90%
The product is easily crosslinked, and is mainly used in lotion and paint field, and use scope is limited.
Authorization Notice No. CN102303333 B discloses " a kind of preservative and its preparation and application ", and preservative is by as follows
The group of weight percentage is grouped as: copper oxide 17.0-21.0%, chromium trioxide 44.5-50.5%, diarsenic pentoxide 30-37%,
Kathon CG 1.5-3.5%, the solvent of the preservative is water, and the weight ratio of the solute and solvent is (86.9-100): 100.
Above-mentioned two formula contains heavy metal, impacts to environment, and Kathon LXE formula also contains a large amount of nitre
Hydrochlorate, so high salt content are often destroyed by the physical aspect of protection product, such as discoloration, conglomeration, demulsification, formation nocuousness
Nitrosamine etc..
Preservative wants homeostasis in storage and use process, otherwise cannot keep long-term antiseptic property, for very
Many body system needs to increase the additive amount of preservative, necessarily causes the blindness of preservative to use in this way, not only increases product cost,
Effect is also unstable, and requirement for anticorrosion or anti-corrosion failure is not achieved.For 5- chloro-2-methyl isothiazolinone, by heavy metal or
The nitrate of high concentration improves stability, and the addition of heavy metal and high concentration nitrate inevitably to environment and is protected
Shield product itself impacts.
A kind of preservative is needed at present, can be maintained a long-term stability, the salt of heavy metal and high concentration will not be introduced, and is reduced
To environmental pollution.
Summary of the invention
In order to solve that preservative stability in the prior art is bad or preservative in introduce heavy metal and high salt concentration to ring
Border and the problem of impacted by protection product itself, the object of the present invention is to provide a kind of preservatives and preparation method thereof.
To achieve the goals above, the present invention adopts the following technical scheme:
The first aspect of the present invention provides a kind of preservative, is grouped as by following group of mass percentage: Kathon CG 0.7%-7%,
Brominated stabilizer 0.1%-10%, surplus are water.
When the mass percent of brominated stabilizer is less than 0.1%, Kathon CG can be decomposed, and the performance of preservative is impacted；With
The problem of brominated stabilizing agent dosage increases, and the stability of Kathon CG increases, but the addition of brominated stabilizer can bring increased costs, knot
Cost consideration is closed, controlling mass percent shared by brominated stabilizer is 0.1%-10%.
Preferably, the brominated stabilizer is water-soluble brominated organic compound.
It is further preferred that the brominated stabilizer is selected from the bromo- 2- nitropropane of 2-, the bromo- 2- nitro-propanol of 2-, 2- is bromo-
2- nitro-1,3-propylene glycol, the bromo- 3- cyano propionamide of 2.2- bis-, any one in 2,2- bis- bromo- 2- nitroethyl alcohols.
The brominated stabilizer of above-mentioned selection has weak oxide, can reducing agent that may be present in welding, reduce
Kathon CG is reduced the risk of agent destruction, guarantees the steady in a long-term of Kathon CG；It is and strong in addition, since brominated stabilizer oxidisability is weaker
Oxidant is different, will not damage to Kathon CG.
The second aspect of the present invention provides the preparation method of foregoing preservatives, includes the following steps:
S1, weighs the Kathon CG of 0.7%-7%, the brominated stabilizer and water of 0.1%-10%, wherein the matter of Kathon CG, brominated stabilizer and water
Measuring the sum of percentage is 100%；
Kathon CG in S1 is put into reactor by S2, stirring；
S3, water and stabilizer in S1 are added into the system after S2 stirring, and stirring obtains preservative.
Preferably, the brominated stabilizer is water-soluble brominated organic compound.
It is further preferred that the brominated stabilizer is selected from the bromo- 2- nitropropane of 2-, the bromo- 2- nitro-propanol of 2-, 2- is bromo-
2- nitro-1,3-propylene glycol, the bromo- 3- cyano propionamide of 2.2- bis-, any one in 2,2- bis- bromo- 2- nitroethyl alcohols.
Compared with prior art, the present invention realize the utility model has the advantages that preservative of the present invention avoids introducing heavy metal or nitric acid
Salt, no pollution to the environment, while will not destroy by the physical aspect of protection product；Preservative of the present invention ensure that by protection product
Long-time stability, will be saved 30 days under 54 DEG C of environment by protection product, 5- chloro-2-methyl isothiazolinone content in system
No consumption；Preservative of the present invention can be diluted to various concentration, will not crosslink reaction, have a wide range of application.
Specific embodiment
Embodiment 1
A kind of preparation method of preservative, includes the following steps:
S1 weighs the Kathon CG 14% of 5000g, the bromo- 2- nitropropane of 500g 2-, 94.5kg water；
Kathon CG in S1 is put into reactor by S2, stirring；
S3, water and the bromo- 2- nitropropane of 2- in S1 are added into the system after S2 stirring, and stirring obtains preservative.
Embodiment 2
A kind of preparation method of preservative, includes the following steps:
S1 weighs 20 kg Kathon CGs 14%, 100g 2- bromo-2-nitro-1,3-propylene glycol, 79.9 kg water；
Kathon CG in S1 is put into reactor by S2, stirring；
S3, water and 2- bromo-2-nitro-1,3-propylene glycol in S1 are added into the system after S2 stirring, and stirring obtains anti-corrosion
Agent.
Embodiment 3
A kind of preparation method of preservative, includes the following steps:
S1 weighs 50 kg Kathon CGs 14%, the bromo- 3- cyano propionamide of 10 kg 2.2- bis-, 40kg water；
Kathon CG in S1 is put into reactor by S2, stirring；
S3, water and the bromo- 3- cyano propionamide of 2.2- bis- in S1 are added into the system after S2 stirring, and stirring obtains preservative.
Embodiment 4
A kind of preparation method of preservative, includes the following steps:
S1 weighs 7000g Kathon CG 14%, the bromo- 2- nitro-propanol of 5kg 2-, 65kg water；
Kathon CG in S1 is put into reactor by S2, stirring；
S3, water and the bromo- 2- nitro-propanol of 2- in S1 are added into the system after S2 stirring, and stirring obtains preservative.
Embodiment 5
A kind of preparation method of preservative, includes the following steps:
S1 weighs 7000g Kathon CG 14%, the bromo- 2- nitroethyl alcohol of 5 kg 2,2- bis-, 70kg water；
Kathon CG in S1 is put into reactor by S2, stirring；
S3, the water and 2 in S1, the bromo- 2- nitroethyl alcohol of 2- bis- are added into the system after S2 stirring, and stirring obtains preservative.
By taking preservative prepared by embodiment 1 as an example, the stability problem of preservative is investigated.
Preservative and Kathon CG 14% prepared by Example 1 is respectively that wherein effective component Kathon CG contains by 24.2g, 1.21g(
Amount is 0.17g), it is separately added into the coating of 20g, is saved under the conditions of 54 DEG C, measured after saving 10 days, 30 days
The retention rate of 5- chloro-2-methyl isothiazolinone in system, 5- chloro-2-methyl isothiazolinone in system after retention rate=preservation
5- chloro-2-methyl isothiazolinone content × 100%, measurement result are as shown in table 1 in system before content/preservation.
Table 1
| Embodiment 1 | Kathon CG 14% | |
| 5- chloro-2-methyl isothiazolinone retention rate after 10 days | 100% | 40% |
| 5- chloro-2-methyl isothiazolinone retention rate after 30 days | 100% | 20% |
| Physical aspect after 30 days | It is unchanged | A large amount of yellow floccules |
Such as table 1, after saving 30 days under the conditions of 54 DEG C, the product of preservative of the present invention, the different thiophene of 5- chloro-2-methyl in system is added
Oxazoline ketone retention rate is still 100%, and product is unchanged；And the product of Kathon CG 14% is added, 5- chloro-2-methyl isothiazoline in system
Ketone retention rate is reduced to 20%, and occurs yellow floccule in system.Preservative of the present invention can guarantee by the long-term steady of protection product
It is qualitative.
Specific embodiment is only exemplary, be in order to preferably make skilled artisans appreciate that this patent,
Be not to be construed as include to this patent range limitation；As long as any equivalent made by the spirit according to disclosed in this patent
Change or modification, each fall within the range that this patent includes.
Claims (6)
1. a kind of preservative, which is characterized in that be grouped as by following group of mass percentage: Kathon CG 0.7%-7%, brominated stabilization
Agent 0.1%-10%, surplus are water.
2. preservative as described in claim 1, which is characterized in that the brominated stabilizer is water-soluble brominated organic compound
Object.
3. preservative as claimed in claim 2, which is characterized in that the brominated stabilizer is selected from the bromo- 2- nitropropane of 2-, 2-
Bromo- 2- nitro-propanol, 2- bromo-2-nitro-1,3-propylene glycol, the bromo- 3- cyano propionamide of 2.2- bis-, 2,2- bis- bromo- 2- nitro second
Any one in alcohol.
4. a kind of preparation method of preservative, which comprises the steps of:
S1, weighs the Kathon CG of 0.7%-7%, the brominated stabilizer and water of 0.1%-10%, wherein the matter of Kathon CG, brominated stabilizer and water
Measuring the sum of percentage composition is 100%；
Kathon CG in S1 is put into reactor by S2, stirring；
S3, water and stabilizer in S1 are added into the system after S2 stirring, and stirring obtains preservative.
5. the preparation method of preservative as claimed in claim 4, which is characterized in that the brominated stabilizer is water-soluble contains
Bromine organic compound.
6. the preparation method of preservative as claimed in claim 4, which is characterized in that the brominated stabilizer is selected from the bromo- 2- of 2-
Nitropropane, the bromo- 2- nitro-propanol of 2-, 2- bromo-2-nitro-1,3-propylene glycol, the bromo- 3- cyano propionamide of 2.2- bis-, 2,2- bis-
Any one in bromo- 2- nitroethyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753821.6A CN109418262A (en) | 2017-08-29 | 2017-08-29 | A kind of preservative and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753821.6A CN109418262A (en) | 2017-08-29 | 2017-08-29 | A kind of preservative and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109418262A true CN109418262A (en) | 2019-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710753821.6A Pending CN109418262A (en) | 2017-08-29 | 2017-08-29 | A kind of preservative and preparation method thereof |
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| CN (1) | CN109418262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321958A (en) * | 2021-07-07 | 2021-08-31 | 广东美涂士建材股份有限公司 | Preservative composition and application thereof in anticorrosive high-temperature-resistant coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08133913A (en) * | 1994-11-08 | 1996-05-28 | Katayama Chem Works Co Ltd | Long-acting 3-isothiazolone-based industrial germicidal preservative |
| CN1806021A (en) * | 2003-06-11 | 2006-07-19 | 科莱恩产品（德国）有限公司 | Stabilized aqueous colorant preparations |
| CN1843589A (en) * | 2006-03-20 | 2006-10-11 | 天津化工研究设计院 | Bactericide for reverse osmosis membrane and method for preparing the same |
| CN104322555A (en) * | 2014-09-26 | 2015-02-04 | 武汉斯达日用化工有限公司 | Preservative used for liquid washing product and preparation method thereof |
-
2017
- 2017-08-29 CN CN201710753821.6A patent/CN109418262A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08133913A (en) * | 1994-11-08 | 1996-05-28 | Katayama Chem Works Co Ltd | Long-acting 3-isothiazolone-based industrial germicidal preservative |
| CN1806021A (en) * | 2003-06-11 | 2006-07-19 | 科莱恩产品（德国）有限公司 | Stabilized aqueous colorant preparations |
| CN1843589A (en) * | 2006-03-20 | 2006-10-11 | 天津化工研究设计院 | Bactericide for reverse osmosis membrane and method for preparing the same |
| CN104322555A (en) * | 2014-09-26 | 2015-02-04 | 武汉斯达日用化工有限公司 | Preservative used for liquid washing product and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 姚静 等: "《药用辅料应用指南》", 31 August 2011, 中国医药科技出版社 * |
| 孙丕基 等: "《洗涤剂》", 31 May 1998, 中国物资出版社 * |
| 王艳萍 等: "《化妆品微生物学》", 31 January 2002, 中国轻工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321958A (en) * | 2021-07-07 | 2021-08-31 | 广东美涂士建材股份有限公司 | Preservative composition and application thereof in anticorrosive high-temperature-resistant coating |
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Application publication date: 20190305 |
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