CN114774924A - Ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor and preparation method thereof - Google Patents
Ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor and preparation method thereof Download PDFInfo
- Publication number
- CN114774924A CN114774924A CN202210594738.XA CN202210594738A CN114774924A CN 114774924 A CN114774924 A CN 114774924A CN 202210594738 A CN202210594738 A CN 202210594738A CN 114774924 A CN114774924 A CN 114774924A
- Authority
- CN
- China
- Prior art keywords
- ammonia nitrogen
- water
- corrosion inhibitor
- soluble corrosion
- molybdate
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/06—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly alkaline liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a ferrous metal water-soluble corrosion inhibitor without ammonia nitrogen, which consists of alkali metal hydroxide, dicarboxylic acid, sodium benzoate, tricarboxylic acid, molybdate, a stabilizer and water. The invention also discloses a preparation method of the composition. The invention can effectively protect the ferrous metal surface from corrosion and oxidation, is suitable for various materials such as brass, red copper, bronze, cast iron, steel and the like, can obtain good use effect by adding the product according to the mass ratio of 1.5-5%, has small addition amount and good stability of concentrated solution, and can be stored for a long time; either concentrated or diluted may be used. Does not contain toxic and harmful products such as nitrite, phosphorus and the like.
Description
Technical Field
The invention relates to the field of organic chemistry, in particular to a ferrous metal water-soluble corrosion inhibitor without ammonia nitrogen and a preparation method thereof.
Background
Ferrous metals comprise cast iron, steel and alloys thereof, and are widely applied to the industries of machinery, bearings, automobile and motorcycle part manufacturing and the like, parts made of the ferrous metals usually need to be briefly resistant to corrosion and rust during the processing process or in the process, and otherwise the parts are scrapped due to discoloration and rust on the surfaces of the products.
Most of the ferrous metal water-soluble corrosion inhibitors in the prior art are solid such as sodium nitrite or corrosion inhibitors containing ammonia nitrogen, which are not favorable for human bodies and environment and are not favorable for subsequent water quality treatment.
In order to solve the problems in the prior art, the invention discloses a ferrous metal water-soluble corrosion inhibitor without ammonia nitrogen and a preparation method thereof.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a ferrous metal water-soluble corrosion inhibitor without ammonia nitrogen and a preparation method thereof. The ferrous metal water-soluble corrosion inhibitor which does not contain ammonia nitrogen is synthesized by adopting the reaction of alkaline hydroxide, dicarboxylic acid and tricarboxylic acid and adding sodium benzoate, molybdate and a stabilizer. The ferrous metal water-soluble corrosion inhibitor without ammonia nitrogen provided by the invention can overcome the defects that the ammonia nitrogen is not easy to treat, so that the environment is deteriorated and the human skin is damaged in the prior art.
In order to realize the purpose of the invention, the adopted technical scheme is as follows:
a ferrous metal water-soluble corrosion inhibitor without ammonia nitrogen comprises the following components in percentage by weight (the additive dosage of the additive is mainly considered from the aspect of cost performance):
15-40% of alkali metal hydroxide;
7-15% of dicarboxylic acid;
0.5-3% of sodium benzoate;
8-30% of tricarboxylic acid;
0.5-1.5% of molybdate;
15-35% of a stabilizer;
the balance being water.
In a preferred embodiment of the present invention, the alkali metal hydroxide is any one or more of sodium hydroxide, potassium hydroxide or lithium hydroxide.
In a preferred embodiment of the present invention, the dicarboxylic acid is any one or more of sebacic acid, an undecanedioic acid, or a dodecanedioic acid.
In a preferred embodiment of the invention, the sodium benzoate is technical grade sodium benzoate.
In a preferred embodiment of the present invention, the tricarboxylic acid is a technical grade tricarboxylic acid.
In a preferred embodiment of the invention, the molybdate is any one or a mixture of sodium molybdate and potassium molybdate.
In a preferred embodiment of the present invention, the stabilizer is any one or more of glycerol, polyethylene glycol, ethylene glycol, diethylene glycol, and propylene glycol.
A preparation method of a ferrous metal water-soluble corrosion inhibitor without ammonia nitrogen comprises the following steps:
adding the alkaline hydroxide, the dicarboxylic acid, the tricarboxylic acid and a proper amount of water into a container under normal pressure, stirring and heating to 40-60 ℃ until the reaction is uniform and transparent;
and then adding the rest water, continuously stirring and maintaining the temperature at 40-60 ℃, then sequentially adding the sodium benzoate, the molybdate and the stabilizer, uniformly mixing, discharging and filtering.
In a preferred embodiment of the invention, the stirring time for uniformly mixing after the sodium benzoate, the molybdate and the stabilizer are added is 30-50 min.
The invention has the beneficial effects that:
the black metal surface is effectively protected from corrosion and oxidation, the black metal surface protective agent is suitable for various materials such as brass, red copper, bronze, cast iron, steel and the like, a good using effect can be obtained by adding the black metal protective agent according to the mass ratio of 1.5-5%, the adding amount is small, the stability of the concentrated solution is good, and the black metal protective agent can be stored for a long time; either concentrated or diluted may be used. Does not contain toxic and harmful products such as nitrite, phosphorus and the like.
Detailed Description
Example 1
The ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor in the embodiment comprises the following components in percentage by weight:
18% of alkali metal hydroxide (potassium hydroxide);
10% of dicarboxylic acid (sebacic acid);
2% of sodium benzoate (industrial grade sodium benzoate);
tricarboxylic acid (technical grade tricarboxylic acid TC50) 20%;
molybdate (sodium molybdate) 1.5%;
20% of stabilizer (mixture of glycerol and glycol, the proportion is 3: 1);
the balance being water.
The specific steps of this embodiment are:
adding potassium hydroxide, sebacic acid, tricarboxylic acid TC50 and a proper amount of water into a preparation kettle under normal pressure, stirring and heating to 40-60 ℃ in the preparation kettle, and uniformly and transparently reacting. And adding the measured balance of water, continuously stirring and maintaining the temperature to be between 40 and 60 ℃, sequentially adding sodium benzoate, sodium molybdate and a stabilizer, stirring for 30 to 50min until the products are uniformly mixed, discharging and filtering.
Example 2
The ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor in the embodiment comprises the following components in percentage by weight:
alkali metal hydroxide (sodium hydroxide) 20%;
13% of dicarboxylic acid (dodecanedicarboxylic acid);
1.5% of sodium benzoate (industrial grade sodium benzoate);
30% of tricarboxylic acid (technical grade tricarboxylic acid TC 50);
0.5% of molybdate (potassium molybdate);
15% of stabilizer (mixture of glycerol and diethylene glycol in a ratio of 3: 1);
the balance being water.
The specific steps of this embodiment are:
adding the alkaline hydroxide, the dicarboxylic acid, the tricarboxylic acid and a proper amount of water into a blending kettle under normal pressure, wherein the temperature is raised to 40-60 ℃ by stirring in the blending kettle, and the reaction is uniform and transparent. And adding the measured balance of water, continuously stirring and maintaining the temperature to 40-60 ℃, sequentially adding sodium benzoate, molybdate and a stabilizer, stirring for 30-50 min until the products are uniformly mixed, discharging and filtering.
The measured data for the examples 1 and 2 are shown in table 1 below:
TABLE 1
Note: the experimental methods in the tables are referred to GB/T6144-2010.
The invention has the advantages that:
firstly, the invention does not contain ammonia nitrogen, is friendly to human body and environment and is easy to process subsequently.
Secondly, the invention is in a liquid state, is a soft film, is mutually soluble with water in any proportion, is extremely convenient to use and has low use cost;
thirdly, the invention belongs to a fully synthetic material, has excellent storage and use stability (can pass low-temperature freeze-thaw storage stability at minus 16 ℃ and high-temperature storage stability tests at 55 ℃), has long service cycle and can be recycled;
fourthly, the corrosion inhibition or corrosion resistance effect of the ferrous metal is brought into full play by a compound optimization formula technology.
Claims (9)
1. The ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor is characterized by comprising the following components in percentage by weight:
15-40% of alkali metal hydroxide;
7-15% of dicarboxylic acid;
0.5-3% of sodium benzoate;
8-30% of tricarboxylic acid;
0.5-1.5% of molybdate;
15-35% of a stabilizer;
the balance being water.
2. The ammonia nitrogen-free water-soluble corrosion inhibitor for ferrous metals as claimed in claim 1, wherein the alkali metal hydroxide is any one or more of sodium hydroxide, potassium hydroxide or lithium hydroxide.
3. The ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor according to claim 1, wherein the dicarboxylic acid is any one or more of sebacic acid, undecanedioic acid or dodecanedioic acid.
4. The ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor of claim 1, wherein the sodium benzoate is industrial grade sodium benzoate.
5. The ammonia nitrogen-free water-soluble corrosion inhibitor for ferrous metals as claimed in claim 1, wherein the tricarboxylic acid is technical-grade tricarboxylic acid.
6. The ammonia nitrogen free water soluble corrosion inhibitor for ferrous metals as claimed in claim 1, wherein the molybdate is one or a mixture of sodium molybdate and potassium molybdate.
7. The ammonia nitrogen-free water-soluble corrosion inhibitor for ferrous metals as claimed in claim 1, wherein the stabilizer is any one or more of glycerol, polyethylene glycol, ethylene glycol, diethylene glycol and propylene glycol.
8. The method for preparing a ferrous metal water soluble corrosion inhibitor containing no ammonia nitrogen according to any one of claims 1 to 7, comprising the following steps:
adding the alkaline hydroxide, the dicarboxylic acid, the tricarboxylic acid and a proper amount of water into a container under normal pressure, stirring and heating to 40-60 ℃ until the reaction is uniform and transparent;
and then adding the rest water, continuously stirring and maintaining the temperature at 40-60 ℃, then sequentially adding the sodium benzoate, the molybdate and the stabilizer, uniformly mixing, discharging and filtering.
9. The method for preparing the ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor according to claim 8, wherein the sodium benzoate, the molybdate and the stabilizer are added and then uniformly mixed for 30-50 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210594738.XA CN114774924A (en) | 2022-05-27 | 2022-05-27 | Ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210594738.XA CN114774924A (en) | 2022-05-27 | 2022-05-27 | Ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114774924A true CN114774924A (en) | 2022-07-22 |
Family
ID=82409423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210594738.XA Pending CN114774924A (en) | 2022-05-27 | 2022-05-27 | Ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114774924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478756A (en) * | 2023-03-10 | 2023-07-25 | 广州米奇化工有限公司 | Cutting fluid and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1013707A (en) * | 1963-10-09 | 1965-12-22 | Monsanto Chemicals | Corrosion inhibitors |
| JPH11264085A (en) * | 1998-03-16 | 1999-09-28 | Nippon Shokubai Co Ltd | Metal corrosion inhibitor |
| CN101955755A (en) * | 2009-07-20 | 2011-01-26 | 比亚迪股份有限公司 | Engine coolant |
| CN102409344A (en) * | 2011-11-15 | 2012-04-11 | 开滦能源化工股份有限公司 | Composite corrosion inhibitor and preparation method thereof |
| CN105839112A (en) * | 2016-05-31 | 2016-08-10 | 无锡伊佩克科技有限公司 | Metal surface water-based antirust agent and preparation method thereof |
| CN108277077A (en) * | 2017-12-06 | 2018-07-13 | 清华大学天津高端装备研究院 | A kind of anti-rust water-based fully synthetic ferrous metal working fluid of high hardness |
| CN113151831A (en) * | 2021-04-21 | 2021-07-23 | 安徽三湖新材料科技有限公司 | Preparation method and application of organic carboxylic acid corrosion inhibition additive |
-
2022
- 2022-05-27 CN CN202210594738.XA patent/CN114774924A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1013707A (en) * | 1963-10-09 | 1965-12-22 | Monsanto Chemicals | Corrosion inhibitors |
| JPH11264085A (en) * | 1998-03-16 | 1999-09-28 | Nippon Shokubai Co Ltd | Metal corrosion inhibitor |
| CN101955755A (en) * | 2009-07-20 | 2011-01-26 | 比亚迪股份有限公司 | Engine coolant |
| CN102409344A (en) * | 2011-11-15 | 2012-04-11 | 开滦能源化工股份有限公司 | Composite corrosion inhibitor and preparation method thereof |
| CN105839112A (en) * | 2016-05-31 | 2016-08-10 | 无锡伊佩克科技有限公司 | Metal surface water-based antirust agent and preparation method thereof |
| CN108277077A (en) * | 2017-12-06 | 2018-07-13 | 清华大学天津高端装备研究院 | A kind of anti-rust water-based fully synthetic ferrous metal working fluid of high hardness |
| CN113151831A (en) * | 2021-04-21 | 2021-07-23 | 安徽三湖新材料科技有限公司 | Preparation method and application of organic carboxylic acid corrosion inhibition additive |
Non-Patent Citations (1)
| Title |
|---|
| 欧风编: "《新型生物化工产品投产指要》", 辽宁科学技术出版社, pages: 749 - 750 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478756A (en) * | 2023-03-10 | 2023-07-25 | 广州米奇化工有限公司 | Cutting fluid and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101659802B (en) | Emulsified metal antirusting agent and preparation method thereof | |
| CN102747359B (en) | Environment-friendly type water based anti-rusting agent | |
| CN100453703C (en) | Inhibitor for controlling carbon dioxide corrosion and production thereof | |
| CN110819992B (en) | Environment-friendly organic metal corrosion inhibitor and preparation method and application thereof | |
| CN103695927A (en) | Corrosion inhibitor | |
| CN105525294B (en) | A kind of environmental type water-based antirust and preparation method thereof | |
| CN114774924A (en) | Ammonia nitrogen-free ferrous metal water-soluble corrosion inhibitor and preparation method thereof | |
| CN104593556A (en) | Aluminum alloy quenching medium and preparation method thereof | |
| CN105860694A (en) | High heat-resistant strippable metal preservative | |
| CN104746082A (en) | Water-based copper anti-rusting agent and preparation method thereof | |
| CN107163841A (en) | It is a kind of to be used for the antirust paint of machinery | |
| CN112359360A (en) | Gas-phase environment-friendly anti-rust paper for multiple metals and preparation method thereof | |
| CN104312710A (en) | Fully synthesized magnesium alloy cutting fluid and preparation method thereof | |
| CN104911578A (en) | Green environment-friendly aqueous rust inhibitor and preparation method thereof | |
| CN104651579A (en) | Antirust and anticorrosion quenching agent and preparation method thereof | |
| CN104277693A (en) | Anti-rust paint for ship and preparation method thereof | |
| CN108220977B (en) | Oil-removing rust inhibitor and preparation method and application thereof | |
| CN110003977A (en) | The preparation method of hydraulic support concentrate antirust agent | |
| US2832742A (en) | Corrosion inhibitor composition | |
| KR20130032567A (en) | Compositions of antifreezing liquid or cooling liquid with improvements in anticorrosion and ph buffering | |
| CN111040827B (en) | Organic carboxylic acid compound, preparation method and steel plate water-based processing fluid | |
| CN104356828A (en) | Water-based rust inhibitor for steel surfaces and preparation method thereof | |
| CN106756961A (en) | A kind of environmentally-friendly water-based antirust solution and preparation method thereof | |
| CN103103530B (en) | A kind of metal antirusting agent containing modified Nano feldspar in powder | |
| CN112681007A (en) | Special gas-phase environment-friendly antirust paper for nodular cast iron and preparation method thereof |
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 |