CN112607874A - Green environment-friendly corrosion and scale inhibitor - Google Patents
Green environment-friendly corrosion and scale inhibitor Download PDFInfo
- Publication number
- CN112607874A CN112607874A CN202011561133.8A CN202011561133A CN112607874A CN 112607874 A CN112607874 A CN 112607874A CN 202011561133 A CN202011561133 A CN 202011561133A CN 112607874 A CN112607874 A CN 112607874A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- acid
- scale inhibitor
- environment
- scale
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
Abstract
The application relates to the field of water treatment agents, and particularly discloses a green environment-friendly corrosion and scale inhibitor. The environment-friendly corrosion and scale inhibitor is prepared from modified polyepoxysuccinic acid, amino acid corrosion inhibitor, water and the like, wherein the preparation method of the modified polyepoxysuccinic acid comprises the following steps: adding chitosan with deacetylation degree of 70-85% into citric acid solution, and stirring until the chitosan is dissolved to obtain chitosan-citric acid solution; adding absolute ethyl alcohol into the chitosan-citric acid solution, heating and refluxing for 1-2h after uniformly stirring, then cooling to 40-50 ℃, adding polyepoxysuccinic acid, uniformly stirring and ultrasonically treating for 2-4h, cooling to room temperature, and finally adjusting the pH to 5.5-7.0 to obtain the modified polyepoxysuccinic acid. The environment-friendly corrosion and scale inhibitor prepared by the method still has good scale inhibition performance at a high temperature, and the environment-friendly corrosion and scale inhibitor can not bring phosphorus, so that the environment-friendly corrosion and scale inhibitor has an environment-friendly effect.
Description
Technical Field
The application relates to the field of water treatment agents, in particular to a green environment-friendly corrosion and scale inhibitor.
Background
Water is an indispensable resource for human survival and development, and in order to improve the utilization rate of industrial water, the industrial water is often required to be treated, so that the industrial water meets the use requirement of circulating cooling water, and then the treated industrial water is used as the circulating cooling water.
However, the circulating cooling water is gradually concentrated during use, and when the concentration factor of the circulating cooling water is too large, calcium scale, iron scale, and the like are easily formed, and the iron scale adheres to the inner wall of the pipe, so that the pipe is easily corroded, and the like.
In order to prevent the above problems, it is generally necessary to add a scale inhibitor having scale inhibition, dispersion and corrosion inhibition properties to the circulating cooling water, so as to inhibit the deposition of calcium scale, iron scale and the like, and form a protective film on the inner wall of the pipeline, which is beneficial to reducing the corrosion of the iron scale and the like on the pipeline.
At present, corrosion and scale inhibitors with high scale inhibition rate in related technologies generally contain inorganic phosphorus or organic phosphine, however, the scale inhibitors containing inorganic phosphorus or organic phosphine are easy to bring pollutant phosphorus into water, so that water is eutrophicated. Therefore, green and environment-friendly phosphorus-free scale inhibitors, such as polyaspartic acid, polyepoxysuccinic acid and the like, are an important development trend at present. However, these green and environment-friendly non-phosphorus scale inhibitors have a problem of low scale inhibition rate in a high-temperature environment, and how to obtain a green and environment-friendly high-temperature-resistant corrosion and scale inhibitor is an important research direction at present.
Disclosure of Invention
In order to obtain the high-temperature-resistant and environment-friendly corrosion and scale inhibitor, the application provides the environment-friendly corrosion and scale inhibitor.
The green environment-friendly corrosion and scale inhibitor adopts the following technical scheme:
the application provides a green environment-friendly corrosion and scale inhibitor, which adopts the following technical scheme:
a green environment-friendly corrosion and scale inhibitor is prepared from the following raw materials in parts by weight:
modified polyepoxysuccinic acid: 60 to 70 portions of
Amino acid corrosion inhibitors: 4 to 8 portions of
Water: 10-15 parts of
The preparation method of the modified polyepoxysuccinic acid comprises the following steps:
adding 1.5-2.5 parts of chitosan with deacetylation degree of 70-85% into 20-30 parts of citric acid solution, and stirring until the chitosan is dissolved to obtain chitosan-citric acid solution;
adding 3-8 parts of absolute ethyl alcohol into the chitosan-citric acid solution, uniformly stirring, heating to 70-80 ℃, heating and refluxing for 1-2h, then cooling to 40-50 ℃, adding 38-48 parts of polyepoxysuccinic acid, uniformly stirring, carrying out ultrasonic treatment for 2-4h, cooling to room temperature, and finally adjusting the pH to 5.5-7.0 to obtain the modified polyepoxysuccinic acid.
By adopting the technical scheme, the environment-friendly corrosion and scale inhibitor prepared from the modified polyepoxysuccinic acid prepared by the method, the amino acid corrosion inhibitor, water and the like still has good scale inhibition performance at a high temperature, and the environment-friendly corrosion and scale inhibitor can not bring phosphorus and has an environment-friendly effect.
Preferably, the chitosan has an average relative molecular mass of 10 to 20 ten thousand.
By adopting the technical scheme, the average relative molecular mass of the chitosan is 10-20 ten thousand, which is beneficial to enhancing the scale inhibition performance of the environment-friendly corrosion and scale inhibitor.
Preferably, the citric acid solution comprises citric acid and water, and the weight ratio of the citric acid to the water is (0.1-0.2): 1.
by adopting the technical scheme, the weight ratio of the citric acid to the water is controlled in the range, so that the chitosan can be conveniently dissolved.
Preferably, the vibration frequency of the ultrasonic wave is 43-58 KHz.
By adopting the technical scheme, the vibration frequency of the ultrasonic wave is controlled to be 43-58KHz, which is beneficial to enhancing the scale inhibition performance and the corrosion inhibition performance of the environment-friendly corrosion and scale inhibitor.
Preferably, the pH of the modified polyepoxysuccinic acid is 6.0 to 6.5.
By adopting the technical scheme, when the pH value of the green corrosion and scale inhibitor is 6.0-6.5, the green corrosion and scale inhibitor has better enough performance at high temperature.
Preferably, the amino acid corrosion inhibitor is any one or a combination of serine and threonine.
By adopting the technical scheme, the corrosion inhibition effect of the green corrosion and scale inhibitor can be improved by matching serine, threonine and other raw materials.
Preferably, the acrylic acid-2-acrylamide-2-methacrylic acid copolymer and the alkyl glycoside are further included, the weight portion of the acrylic acid-2-acrylamide-2-methacrylic acid copolymer is 12-18, and the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic acid copolymer to the alkyl glycoside is (60-120): 1.
by adopting the technical scheme, the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer and alkyl glycoside are added into the green corrosion and scale inhibitor, so that the scale inhibition rate and the corrosion inhibition rate of the green corrosion and scale inhibitor in a high-temperature state can be obviously improved.
Preferably, the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic acid copolymer to the alkyl glycoside is 90: 1.
by adopting the technical scheme, when the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer to the alkyl glycoside is 90: 1, the green corrosion and scale inhibitor has the highest scale inhibition rate and corrosion inhibition rate in a high-temperature state.
Preferably, the alkyl glycoside is one or more of tetradecyl glycoside, pentadecyl glycoside and hexadecyl glycoside.
By adopting the technical scheme, the tetradecyl glucoside, the pentadecyl glucoside and the hexadecyl glucoside have good matching effect with the acrylic acid-2-acrylamide-2-methyl propylene sulfonic acid copolymer, the modified polyepoxysuccinic acid, the amino acid corrosion inhibitor and the like, and the scale inhibition rate and the corrosion inhibition rate of the green corrosion and scale inhibitor at high temperature can be effectively improved.
Preferably, the limiting viscosity number of the acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer is 0.08 to 0.100 dL/g.
By adopting the technical scheme, when the limiting viscosity number of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer is 0.08-0.100dL/g, the scale inhibition rate and the corrosion inhibition rate of the green corrosion and scale inhibitor in a high-temperature state can be improved.
In summary, the present application has the following beneficial effects:
1. the environment-friendly corrosion and scale inhibitor prepared from the modified polyepoxysuccinic acid prepared by the method, the amino acid corrosion inhibitor, water and the like still has good scale inhibition performance at a high temperature, and the environment-friendly corrosion and scale inhibitor can not bring phosphorus and has an environment-friendly effect.
2. After the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer and alkyl glycoside are added into the modified polyepoxysuccinic acid and amino acid corrosion inhibitor, the scale inhibition rate and the corrosion inhibition rate of the green corrosion and scale inhibitor in a high-temperature state can be obviously improved.
Detailed Description
The present application will be described in further detail with reference to examples and comparative examples.
The raw materials referred to in the present application are all commercially available, wherein:
chitosan was purchased from shenzhen lefu biotechnology, ltd;
polyepoxysuccinic acid was purchased from Tianjin Keweijin Macro environmental protection science and technology, Inc. and had a viscosity of 325 mPa.s;
the acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer is available from Tianjin Kogyu Weijin environmental protection science and technology Co., Ltd, and is TM-622.
Examples
Example 1
The preparation method of the green environment-friendly scale and corrosion inhibitor comprises the following steps:
adding 60kg of modified polyepoxy succinic acid and 8kg of amino acid corrosion inhibitor into 10kg of water, and uniformly stirring to obtain the environment-friendly scale and corrosion inhibitor;
in the present example, the preparation method of the modified polyepoxysuccinic acid is as follows:
adding 1.5kg of chitosan with deacetylation degree of 70% into 30kg of citric acid solution, and stirring until the chitosan is dissolved to obtain chitosan-citric acid solution; wherein the chitosan has an average relative molecular mass of 10 ten thousand, and the weight ratio of citric acid to water in the citric acid solution is 0.1: 1;
adding 3kg of absolute ethyl alcohol into the chitosan-citric acid solution, uniformly stirring, heating to 80 ℃, heating and refluxing for 1h, then cooling to 50 ℃, adding 38kg of polyepoxysuccinic acid, uniformly stirring, carrying out ultrasonic treatment for 4h at the vibration frequency of 43KHz, cooling to room temperature, and finally adjusting the pH to 5.5 by using sodium hydroxide to obtain the modified polyepoxysuccinic acid;
in addition, in this embodiment, serine is used as the amino acid corrosion inhibitor.
Example 2
Adding 65kg of modified polyepoxy succinic acid and 6kg of amino acid corrosion inhibitor into 12kg of water, and uniformly stirring to obtain the environment-friendly scale and corrosion inhibitor;
in the present example, the preparation method of the modified polyepoxysuccinic acid is as follows:
adding 2.0kg of chitosan with deacetylation degree of 80% into 25kg of citric acid solution, and stirring until the chitosan is dissolved to obtain chitosan-citric acid solution; wherein the average relative molecular mass of the chitosan is 15 ten thousand, and the weight ratio of citric acid to water in the citric acid solution is 0.15: 1;
adding 6kg of absolute ethyl alcohol into the chitosan-citric acid solution, uniformly stirring, heating to 75 ℃, heating and refluxing for 1.5h, then cooling to 45 ℃, adding 42kg of polyepoxysuccinic acid, uniformly stirring, carrying out ultrasonic treatment for 3h at the vibration frequency of 50KHz, cooling to room temperature, and finally adjusting the pH value to 5.5 by using sodium hydroxide to obtain modified polyepoxysuccinic acid;
in addition, threonine is used as the amino acid corrosion inhibitor in this example.
Example 3
Adding 70kg of modified polyepoxysuccinic acid and 4kg of amino acid corrosion inhibitor into 15kg of water, and uniformly stirring to obtain the environment-friendly scale and corrosion inhibitor;
in the present example, the preparation method of the modified polyepoxysuccinic acid is as follows:
adding 2.5kg of chitosan with deacetylation degree of 85% into 20kg of citric acid solution, and stirring until the chitosan is dissolved to obtain chitosan-citric acid solution; wherein the chitosan has an average relative molecular mass of 20 ten thousand, and the citric acid solution has a citric acid to water weight ratio of 0.2: 1;
adding 8kg of absolute ethyl alcohol into the chitosan-citric acid solution, uniformly stirring, heating to 70 ℃, heating and refluxing for 2h, then cooling to 40 ℃, adding 48kg of polyepoxysuccinic acid, uniformly stirring, carrying out ultrasonic treatment for 2h at the vibration frequency of 58KHz, cooling to room temperature, and finally adjusting the pH to 5.5 by using sodium hydroxide to obtain modified polyepoxysuccinic acid;
in addition, in this embodiment, serine is used as the amino acid corrosion inhibitor.
Example 4
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 2 is as follows:
in the preparation of modified polyepoxysuccinic acid, the pH was adjusted to 6.0 with sodium hydroxide.
Example 5
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 2 is as follows:
in the preparation of modified polyepoxysuccinic acid, the pH was adjusted to 6.5 with sodium hydroxide.
Example 6
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 2 is as follows:
in the preparation of modified polyepoxysuccinic acid, the pH was adjusted to 7.0 with sodium hydroxide.
Example 7
The green environment-friendly scale and corrosion inhibitor is different from the corrosion inhibitor in example 5 in that:
adding 65kg of modified polyepoxysuccinic acid, 6kg of amino acid corrosion inhibitor, 12kg of acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer and 0.2kg of tetradecyl glycoside into 12kg of water, and uniformly stirring to obtain the environment-friendly scale and corrosion inhibitor; wherein the limiting viscosity number of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer is 0.08dL/g, and the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer to tetradecyl glucoside is 60: 1.
example 8
The green environment-friendly scale and corrosion inhibitor is different from the corrosion inhibitor in example 5 in that:
adding 65kg of modified polyepoxysuccinic acid, 6kg of amino acid corrosion inhibitor, 18kg of acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer and 0.3kg of hexadecyl glycoside into 12kg of water, and uniformly stirring to obtain the environment-friendly scale and corrosion inhibitor; wherein the limiting viscosity number of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer is 0.100dL/g, and the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer to the hexadecyl glycoside is 60: 1.
example 9
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 8 is as follows:
the addition amount of hexadecyl glycoside is 0.2kg, and the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer to the hexadecyl glycoside is 90: 1.
example 10
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 8 is as follows:
the addition amount of hexadecyl glycoside is 0.15kg, and the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer to the hexadecyl glycoside is 120: 1.
comparative example
Comparative example 1
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 2 is as follows:
the modified polyepoxy succinic acid is replaced by the same amount of polyepoxy succinic acid.
Comparative example 2
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 2 is as follows:
when preparing the modified polyepoxy succinic acid, adding 8kg of absolute ethyl alcohol into the chitosan-citric acid solution, then adding 48kg of polyepoxy succinic acid, stirring uniformly, carrying out ultrasonic treatment for 2h at the vibration frequency of 58KHz, cooling to room temperature, and finally adjusting the pH to 5.5 by using sodium hydroxide to prepare the modified polyepoxy succinic acid.
Comparative example 3
The difference between the green environment-friendly scale and corrosion inhibitor and the embodiment 2 is as follows:
when preparing the modified polyepoxy succinic acid, adding 8kg of absolute ethyl alcohol into the chitosan-citric acid solution, uniformly stirring, heating to 70 ℃, heating and refluxing for 2h, then cooling to 40 ℃, adding 48kg of polyepoxy succinic acid, uniformly stirring, carrying out ultrasonic treatment for 2h at the vibration frequency of 58KHz, and cooling to room temperature to obtain the modified polyepoxy succinic acid.
Detection method/test method
The green corrosion and scale inhibitors prepared in the examples 1 to 10 and the comparative examples 1 to 3 are respectively added into cooling circulating water with the calcium ion concentration of 300mg/L by 20ppm, the scale inhibition rate is determined at 80 ℃ according to the GB/T16632-2008 calcium carbonate precipitation method, the corrosion inhibition effect of the green corrosion and scale inhibitors prepared in the examples 1 to 10 and the comparative examples 1 to 3 is tested according to the rotary hanging sheet method specified in GB/T18175 to 2000, and the test results are shown in Table 1.
TABLE 1 Green corrosion and scale inhibitor in examples 1-10 and comparative examples 1-3
| Item | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Scale inhibition rate/%) | 85.33 | 85.54 | 85.46 | 86.96 | 87.41 |
| Inhibition rate/%) | 73.89 | 73.96 | 74.11 | 73.83 | 73.92 |
| Item | Example 6 | Example 7 | Example 8 | Example 9 | Example 10 |
| Scale inhibition rate/%) | 85.64 | 94.67 | 94.89 | 95.92 | 94.96 |
| Inhibition rate/%) | 73.89 | 86.92 | 87.02 | 87.56 | 87.09 |
| Item | Comparative example 1 | Comparative example 2 | Comparative example 3 | Blank space | |
| Scale inhibition rate/%) | 63.45 | 71.32 | 70.98 | 10.21 | |
| Inhibition rate/%) | 56.78 | 66.92 | 66.98 | 43.71 |
It can be seen from the data in table 1 that the green scale and corrosion inhibitor in example 2 is superior to the green scale and corrosion inhibitor in comparative examples 1-3 in scale and corrosion inhibition performance of the pipeline, and the green scale and corrosion inhibitor in example 2 can improve scale and corrosion inhibition effects under high temperature conditions, as shown by combining example 2 with comparative examples 1-3 and table 1, compared with example 2, the modified polyepoxysuccinic acid in comparative example 1 is replaced by the same amount of polyepoxysuccinic acid, the modified polyepoxysuccinic acid in comparative example 2 omits the step of heating reflux, and the modified polyepoxysuccinic acid in comparative example 3 omits the step of adjusting pH.
It can be seen from the data in table 1 that the difference between examples 4-6 and example 2 is the pH difference between the green scale and corrosion inhibitors, and the data in table 1 show that the green scale and corrosion inhibitors perform well at high temperatures when the pH of the green scale and corrosion inhibitors is 6.0-6.5.
It can be seen from the combination of example 5 and examples 7-8 and table 1 that the difference between examples 7-8 and example 5 is that the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer and alkyl glycoside are added in examples 7-8, and from the data in table 1, the green corrosion and scale inhibitor in examples 7-8 can obviously improve the scale inhibition rate and corrosion inhibition rate of the green corrosion and scale inhibitor in a high temperature state after the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer and alkyl glycoside are added.
As can be seen by combining examples 8-10 with Table 1, examples 8-10 differ in that: the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic acid sulfonic acid copolymer to the alkyl glycoside is different, wherein when the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic acid sulfonic acid copolymer to the alkyl glycoside is 90: 1, the green corrosion and scale inhibitor has the highest scale inhibition rate and corrosion inhibition rate in a high-temperature state.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. The environment-friendly corrosion and scale inhibitor is characterized by being prepared from the following raw materials in parts by weight:
modified polyepoxysuccinic acid: 60 to 70 portions of
Amino acid corrosion inhibitors: 4 to 8 portions of
Water: 10-15 parts of
The preparation method of the modified polyepoxysuccinic acid comprises the following steps:
adding 1.5-2.5 parts of chitosan with deacetylation degree of 70-85% into 20-30 parts of citric acid solution, and stirring until the chitosan is dissolved to obtain chitosan-citric acid solution;
adding 3-8 parts of absolute ethyl alcohol into the chitosan-citric acid solution, uniformly stirring, heating to 70-80 ℃, heating and refluxing for 1-2h, then cooling to 40-50 ℃, adding 38-48 parts of polyepoxysuccinic acid, uniformly stirring, carrying out ultrasonic treatment for 2-4h, cooling to room temperature, and finally adjusting the pH to 5.5-7.0 to obtain the modified polyepoxysuccinic acid.
2. The green environment-friendly corrosion and scale inhibitor according to claim 1, characterized in that: the average relative molecular mass of the chitosan is 10-20 ten thousand.
3. The green environment-friendly corrosion and scale inhibitor according to claim 1, characterized in that: the citric acid solution comprises citric acid and water, and the weight ratio of the citric acid to the water is (0.1-0.2): 1.
4. the green environment-friendly corrosion and scale inhibitor according to claim 1, characterized in that: the vibration frequency of the ultrasonic wave is 43-58 KHz.
5. The green environment-friendly corrosion and scale inhibitor according to claim 1, characterized in that: the pH value of the modified polyepoxysuccinic acid is 6.0-6.5.
6. The green environment-friendly corrosion and scale inhibitor according to claim 1, characterized in that: the amino acid corrosion inhibitor is one or a combination of serine and threonine.
7. The green environment-friendly corrosion and scale inhibitor according to claim 1, characterized in that: the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer and alkyl glycoside are also included, the weight portion of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer is 12-18, and the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer to the alkyl glycoside is (60-120): 1.
8. the green environment-friendly corrosion and scale inhibitor according to claim 7, characterized in that: the weight ratio of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer to the alkyl glycoside is 90: 1.
9. the green environment-friendly corrosion and scale inhibitor according to claim 7, characterized in that: the alkyl glycoside is one or a combination of tetradecyl glycoside, pentadecyl glycoside and hexadecyl glycoside.
10. The green environment-friendly corrosion and scale inhibitor according to claim 7, characterized in that: the limiting viscosity number of the acrylic acid-2-acrylamide-2-methacrylic sulfonic acid copolymer is 0.08-0.100 dL/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561133.8A CN112607874A (en) | 2020-12-25 | 2020-12-25 | Green environment-friendly corrosion and scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561133.8A CN112607874A (en) | 2020-12-25 | 2020-12-25 | Green environment-friendly corrosion and scale inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112607874A true CN112607874A (en) | 2021-04-06 |
Family
ID=75245105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011561133.8A Pending CN112607874A (en) | 2020-12-25 | 2020-12-25 | Green environment-friendly corrosion and scale inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112607874A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755845A (en) * | 2021-09-06 | 2021-12-07 | 河北源清环保科技有限公司 | Corrosion inhibitor for circulating water system by using softened water as make-up water and preparation method thereof |
| CN113802126A (en) * | 2021-09-26 | 2021-12-17 | 广州市粤新工程技术有限公司 | Chilled water corrosion inhibitor for inhibiting electrochemical corrosion and preparation method thereof |
| CN115432832A (en) * | 2022-09-28 | 2022-12-06 | 广州市粤新工程技术有限公司 | Low-phosphorus corrosion and scale inhibitor and preparation method thereof |
| CN115852375A (en) * | 2022-12-17 | 2023-03-28 | 江苏科利恩净水科技有限公司 | Composite efficient copper corrosion inhibitor and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248438A (en) * | 1992-01-28 | 1993-09-28 | Betz Laboratories, Inc. | Methods of controlling scale formation in aqueous systems |
| CN102627359A (en) * | 2012-04-24 | 2012-08-08 | 湖南省电力公司科学研究院 | Phosphorus-free composite corrosion and scale inhibitor containing natural biodegradable substances |
| CN106277379A (en) * | 2016-09-30 | 2017-01-04 | 武汉理工大学 | A kind of environment-friendly chitosan compound corrosion inhibiting and descaling agent and preparation method thereof |
| CN110482760A (en) * | 2019-08-29 | 2019-11-22 | 上海丰信环保科技有限公司 | A kind of Treated sewage reusing technique of zero discharge |
-
2020
- 2020-12-25 CN CN202011561133.8A patent/CN112607874A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248438A (en) * | 1992-01-28 | 1993-09-28 | Betz Laboratories, Inc. | Methods of controlling scale formation in aqueous systems |
| CN102627359A (en) * | 2012-04-24 | 2012-08-08 | 湖南省电力公司科学研究院 | Phosphorus-free composite corrosion and scale inhibitor containing natural biodegradable substances |
| CN106277379A (en) * | 2016-09-30 | 2017-01-04 | 武汉理工大学 | A kind of environment-friendly chitosan compound corrosion inhibiting and descaling agent and preparation method thereof |
| CN110482760A (en) * | 2019-08-29 | 2019-11-22 | 上海丰信环保科技有限公司 | A kind of Treated sewage reusing technique of zero discharge |
Non-Patent Citations (1)
| Title |
|---|
| 孙晓君等: "柠檬酸化壳聚糖的合成及其水溶性研究", 《哈尔滨工业大学学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755845A (en) * | 2021-09-06 | 2021-12-07 | 河北源清环保科技有限公司 | Corrosion inhibitor for circulating water system by using softened water as make-up water and preparation method thereof |
| CN113755845B (en) * | 2021-09-06 | 2023-07-25 | 河北源清环保科技有限公司 | Corrosion inhibitor for circulating water system with softened water as replenishing water and preparation method thereof |
| CN113802126A (en) * | 2021-09-26 | 2021-12-17 | 广州市粤新工程技术有限公司 | Chilled water corrosion inhibitor for inhibiting electrochemical corrosion and preparation method thereof |
| CN115432832A (en) * | 2022-09-28 | 2022-12-06 | 广州市粤新工程技术有限公司 | Low-phosphorus corrosion and scale inhibitor and preparation method thereof |
| CN115432832B (en) * | 2022-09-28 | 2024-01-30 | 广州市粤新工程技术有限公司 | Low-phosphorus corrosion and scale inhibitor and preparation method thereof |
| CN115852375A (en) * | 2022-12-17 | 2023-03-28 | 江苏科利恩净水科技有限公司 | Composite efficient copper corrosion inhibitor and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112607874A (en) | Green environment-friendly corrosion and scale inhibitor | |
| CN104355419A (en) | Multifunctional scale and corrosion inhibitor and preparation method thereof | |
| AU2015217240B2 (en) | Primary amine-containing polymers useful as scale inhibitors | |
| CN112047498A (en) | Circulating water phosphorus-free corrosion and scale inhibitor and preparation method thereof | |
| CN107163375B (en) | One kind agent of halogen-free expanded flame-retardant containing halloysite nanotubes and its preparation method and application | |
| CN103553219B (en) | Preparation method and application of corrosion and scale inhibitor for ethylene glycol sealed circulating water | |
| CN110921857A (en) | Special scale inhibitor for MVR system and preparation method thereof | |
| CN106083723A (en) | A kind of mixing-in fat base double (imidazoline quaternary ammonium salt) and preparation method and application | |
| CN112920652A (en) | Interior wall coating | |
| CN106396144A (en) | A water stabilizing agent for middle- and low-pressure steam boilers | |
| CN104150618A (en) | Anti-sludging agent for oil field exploration and preparation method of anti-sludging agent | |
| CN111960556B (en) | Phosphorus-free scale inhibitor for high-hardness water and preparation method thereof | |
| CN103819010A (en) | Efficient scale and corrosion inhibitor and preparation method thereof | |
| CN103834010A (en) | Rosin-based grafted polyaspartic acid and preparation method thereof | |
| CN108018543A (en) | A kind of without phosphorus no zinc prefilming agent of recirculated cooling water and preparation method thereof | |
| CN113185008A (en) | Corrosion and scale inhibitor composition and application thereof | |
| CN105967354A (en) | Energy-saving, anti-scaling, descaling and anticorrosive compound medicament for steam boiler and preparation method thereof | |
| CN115340390B (en) | Preparation method of red mud-based baking-free high-strength clay brick alkali inhibitor | |
| CN103865062B (en) | A kind of aspartate copolymer water conditioner and preparation method thereof | |
| CN111533287A (en) | Non-phosphorus scale and corrosion inhibitor and preparation method thereof | |
| CN117089334A (en) | Corrosion inhibitor for oil extraction and preparation method thereof | |
| CN109694770A (en) | One Albatra metal cutting fluid composite and preparation method thereof | |
| CN207468528U (en) | The process units of incrustation scale inhibitor CW-881 dirt dispersion agents | |
| CN108773917A (en) | A kind of corrosion inhibiting and descaling agent and preparation method thereof | |
| CN110171882A (en) | A kind of corrosion-mitigation scale-inhibition agent prescription containing biodegradable quaternary ammonium and its application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210406 |
|
| RJ01 | Rejection of invention patent application after publication |