CN107604371A - A kind of neutral rust remover and preparation method thereof - Google Patents
A kind of neutral rust remover and preparation method thereof Download PDFInfo
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- CN107604371A CN107604371A CN201710637025.6A CN201710637025A CN107604371A CN 107604371 A CN107604371 A CN 107604371A CN 201710637025 A CN201710637025 A CN 201710637025A CN 107604371 A CN107604371 A CN 107604371A
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Abstract
The invention discloses a kind of neutral rust remover, is related to metal surface derusting technical field.The neutral rust remover is made up of the raw material of following weight weight fraction：1~3 part of 130~170 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium chloride and/or potassium chloride, 0.4~1.6 part of potassium oxalate, 0.4~1.6 part of formic acid, 0.4~1.6 part of phytic acid, 1~3 part of citric acid, 0.4~1.6 part of ethylenediamine tetra-acetic acid, 3~7 parts of organic amine ester TPP；It is preparation method the invention also discloses neutral rust remover.The present invention not only derusts at normal temperatures, and speed is fast, and derusting effect is good, and the secondary corrosion time is grown；The present invention is in neutrality simultaneously, and to matrix not damaged, metal intensity in itself and ductility will not be had an impact；Each component is environmentally friendly, nontoxic, non smoke and penetrating odor, environmentally safe, to human body fanout free region.
Description
Technical field
The present invention relates to metal surface derusting technical field, and in particular to is a kind of neutral rust remover.
Background technology
Corrosion is one of principal mode for destroying metallic article, according to statistics, straight caused by metal erosion every year
Economic loss accounts for total value of production in national economy 2%~4% is connect, the corrosion condition of particularly steel product is even more serious.To keep away
Exempt from corrosion, reduce loss, the industry such as intermetallic composite coating, machine-building is being sprayed, electroplate, before the process such as plastic-spraying at present, and one
As the metal surface of processing is handled using rust remover, to improve the adhesive force of film and rust-preventing characteristic.
Existing rust remover is made up of inorganic acid, organic acid, salt, corrosion inhibiter, surfactant and water more, or by sulfuric acid
Formed with a variety of anions and canons surfactants.These products, which are had in common that, to be removed under highly acid atmosphere
Rust, highly acid rust remover not only pollute environment, easily form acid mist, have great injury to human body, and produce " hydrogen to metal
It is crisp " phenomenon, cause the mechanical properties decrease of metal, compromise the overall robustness of metal.
Also the application of some neutral rust remover in the market, but the speed that derusts far is not by far up to the mark, and
It is required that processing of rust removing temperature is higher.
The content of the invention
The technical problems to be solved by the invention are the shortcomings that overcoming above prior art, there is provided a kind of neutral derusting is clear
Lotion, the neutral rust removing detergent is in neutrality, not only corrosion-free to the equipment of various materials, and the speed that derusts is fast, while not
Need to heat.
The technical solution of the present invention is as follows：A kind of neutral rust remover, is prepared from the following raw materials in parts by weight：Hydroxyl
1~3 part of 130~170 parts of ethylene-diphosphonic acid, sodium chloride and/or potassium chloride, 0.4~1.6 part of potassium oxalate, 0.4~1.6 part of formic acid,
0.4~1.6 part of phytic acid, 1~3 part of citric acid, 0.4~1.6 part of ethylenediamine tetra-acetic acid, 3~7 parts of organic amine ester TPP.
Preferably, described neutral rust remover is prepared from the following raw materials in parts by weight：1-hydroxy ethylidene-1,1-diphosphonic acid 140~
1.5~2.5 parts of 160 parts, sodium chloride and/or potassium chloride, 0.7~1.3 part of potassium oxalate, 0.7~1.3 part of formic acid, phytic acid 0.7~
1.3 parts, 1.5~2.5 parts of citric acid, 0.7~1.3 part of ethylenediamine tetra-acetic acid, 4~6 parts of organic amine ester TPP.
Preferably, described neutral rust remover is prepared from the following raw materials in parts by weight：1-hydroxy ethylidene-1,1-diphosphonic acid 150
Part, 2 parts of sodium chloride and/or potassium chloride, 1 part of potassium oxalate, 1 part of formic acid, 1 part of phytic acid, 2 parts of citric acid, 1 part of ethylenediamine tetra-acetic acid,
5 parts of organic amine ester TPP.
Preferably, described sodium chloride and the weight ratio of potassium chloride are 1:1.
Preferably, described organic amine ester originates from Xin Wei Science and Technology Ltd.s of Shenzhen.
Preferably, described neutral rust remover pH is 6~7.
Present invention also offers a kind of neutral rust remover preparation method, comprise the following steps：
(1) first 1-hydroxy ethylidene-1,1-diphosphonic acid and organic amine ester TPP are mixed, stirred；
(2) sodium chloride and/or potassium chloride, potassium oxalate, ethylenediamine tetra-acetic acid are added in the mixed liquor that step (1) obtains,
Stir；
(3) phytic acid, citric acid, formic acid are added in the mixed liquor that step (2) obtains, stirred；
(4) potassium hydroxide is added in the mixed liquor that step (3) obtains, pH to 6~7 is adjusted, that is, obtains neutral rust remover.
The principle of the present invention is that 1-hydroxy ethylidene-1,1-diphosphonic acid is a kind of organophosphor acids anti-incrustation corrosion inhibitor, can be with iron, copper, zinc
Stable complex compound is formed Deng various metals ion, the oxide of metal surface can be dissolved, there is preferable scale inhibition effect and have
Obvious threshold effect；Organic amine ester TPP belongs to methyl hydramine esters anti-incrustation corrosion inhibitor, has scattered and dissolving oxidation on metal surface
Skin double action, stable complex compound can be formed with various metals ions such as iron, copper, zinc, and there is good corrosion inhibition,
It is the low tastes of organic amine ester TPP, nontoxic, there is stable pH；Phytic acid not only has very strong chelating energy to metal and metallic salt
Power, the complex compound formed with metal complex all have extremely strong stability, and phytic acid and metal in extensive pH value range
During complexing, one layer of fine and close unimolecule organic protective film is formed in metal surface, can effectively prevent O2Deng entering metal surface,
So as to suppress corrosion of metal, simultaneously because film layer has similar chemical property with organic coating, and contain hydroxyl and phosphoric acid
Base isoreactivity group, chemical action can occur with organic coating, increase the adhesive property of metal surface and coating；Sodium chloride and chlorine
The penetrating power of rust remover active component can be strengthened by changing potassium, improve the speed of derusting；Formic acid can dissolve many metals, metal oxygen
Compound, hydroxide and salt, and formic acid not chloride ion-containing, the cleaning available for the equipment containing stainless steel material；Potassium oxalate, lemon
Lemon acid is complexing agent, can be complexed with iron ion, generates stable complex compound；Ethylenediamine tetra-acetic acid is not only chelating agent, with Mg2 +、Ca2+、Mn2+、Fe2+A kind of chelating agent combined Deng bivalent metal ion, and be also pH adjusting agent.
Therefore in the present invention, metal surface is cleaned using formic acid, removes metal surface metal, metal oxide, hydrogen-oxygen
Compound and salt, recycle the collaboration of 1-hydroxy ethylidene-1,1-diphosphonic acid, organic amine ester TPP, potassium oxalate, citric acid and ethylenediamine tetra-acetic acid etc.
Effect, the oxide-film of metal surface is further dissolved, while form stable complex compound and chela in metal surface with metal ion
Compound；In addition, one layer of fine and close unimolecule organic protective film is formed in metal surface using phytic acid, so as to effectively prevent O2Deng
Into metal surface；In addition, sodium chloride and potassium chloride can strengthen 1-hydroxy ethylidene-1,1-diphosphonic acid, organic amine ester TPP, potassium oxalate, lemon
The penetrating power of lemon acid, phytic acid etc., improve rust cleaning efficiency；In addition ethylenediamine tetra-acetic acid is not only chelating agent, and is also that pH is adjusted
Agent is saved, for adjusting the pH of the present invention, pH of the present invention is in neutrality.
Compared with prior art, the advantage of the invention is that：
(1) the neutral rust remover of the invention derusting time is 20-25 minutes, and the derusting time of existing neutral rust removing solution is
30-40 minutes, thus the derusting time of the neutral rust remover of the present invention greatly shorten.
(2) length of secondary corrosion time of neutral rust remover of the invention, by the gold after the neutral rust remover processing of the present invention
Belong to and have no within 3 months disposed within obvious iron mold, and the use of the metal secondary corrosion time of existing rust removing solution is 1 month.
(3) neutral rust remover of the invention is in neutrality, during for Treatment of Metal Surface, to matrix not damaged, to metal sheet
The intensity and ductility of body will not have an impact.
(4) when neutral rust remover of the invention is used for Treatment of Metal Surface, descale, iron rust can be not only removed, and
One layer of fine and close passivating film can be formed in metal surface, play the function of antirust, the passivating film have good corrosion resistance and
Film adhesive.
(5) each component of neutral rust remover of the invention is environmentally friendly, nontoxic, and non smoke and penetrating odor are environmentally safe,
To human body fanout free region；
(6) neutral rust remover of the invention can use at normal temperatures, without heating, can save the energy.
Embodiment
The present invention is described in further details with specific embodiment below, but the present invention is not only limited in detail below in fact
Apply example.
Embodiment one
A kind of neutral rust remover, is prepared from the following raw materials in parts by weight：130 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium chloride 1
Part, 0.4 part of potassium oxalate, 0.4 part of formic acid, 0.4 part of phytic acid, 1 part of citric acid, 0.4 part of ethylenediamine tetra-acetic acid, organic amine ester TPP 3
Part.
Organic amine ester TPP in the present embodiment is selected from the organic amine ester TPP tables of Xin Wei Science and Technology Ltd.s of Shenzhen production
Face activating agent.
The preparation method of the neutral rust remover：The raw material of above parts by weight is weighed, 1-hydroxy ethylidene-1,1-diphosphonic acid and will first be had
Machine amine ester TPP is mixed, and is stirred, and is then added sodium chloride, potassium oxalate, ethylenediamine tetra-acetic acid, is stirred, then
Phytic acid, citric acid, formic acid are added, is stirred, is eventually adding potassium hydroxide, pH to 6~7 is adjusted, that is, obtains neutral rust remover.
Embodiment two
A kind of neutral rust remover, is prepared from the following raw materials in parts by weight：140 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, potassium chloride 1.5
Part, 0.7 part of potassium oxalate, 0.7 part of formic acid, 0.7 part of phytic acid, 1.5 parts of citric acid, 0.7 part of ethylenediamine tetra-acetic acid, organic amine ester TPP
4 parts.
Organic amine ester TPP in the present embodiment is selected from the organic amine ester TPP tables of Xin Wei Science and Technology Ltd.s of Shenzhen production
Face activating agent.
The preparation method of the neutral rust remover：The raw material of above parts by weight is weighed, 1-hydroxy ethylidene-1,1-diphosphonic acid and will first be had
Machine amine ester TPP is mixed, and is stirred, and is then added sodium chloride, potassium oxalate, ethylenediamine tetra-acetic acid, is stirred, then
Phytic acid, citric acid, formic acid are added, is stirred, is eventually adding potassium hydroxide, pH to 6~7 is adjusted, that is, obtains neutral rust remover.
Embodiment three
A kind of neutral rust remover, is prepared from the following raw materials in parts by weight：150 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium chloride 1
Part, 1 part of potassium chloride, 1 part of potassium oxalate, 1 part of formic acid, 1 part of phytic acid, 2 parts of citric acid, 1 part of ethylenediamine tetra-acetic acid, organic amine ester TPP
5 parts.
Organic amine ester TPP in the present embodiment is selected from the organic amine ester TPP tables of Xin Wei Science and Technology Ltd.s of Shenzhen production
Face activating agent.
The preparation method of the neutral rust remover：The raw material of above parts by weight is weighed, 1-hydroxy ethylidene-1,1-diphosphonic acid and will first be had
Machine amine ester TPP is mixed, and is stirred, and is then added sodium chloride, potassium oxalate, ethylenediamine tetra-acetic acid, is stirred, then
Phytic acid, citric acid, formic acid are added, is stirred, is eventually adding potassium hydroxide, pH to 6~7 is adjusted, that is, obtains neutral rust remover.
Example IV
A kind of neutral rust remover, is prepared from the following raw materials in parts by weight：160 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium chloride 1
Part, 1.5 parts of potassium chloride, 1.3 parts of potassium oxalate, 1.3 parts of formic acid, 1.3 parts of phytic acid, 2.5 parts of citric acid, 1.3 parts of ethylenediamine tetra-acetic acid,
6 parts of organic amine ester TPP.
Organic amine ester TPP in the present embodiment is selected from the organic amine ester TPP tables of Xin Wei Science and Technology Ltd.s of Shenzhen production
Face activating agent.
The preparation method of the neutral rust remover：The raw material of above parts by weight is weighed, 1-hydroxy ethylidene-1,1-diphosphonic acid and will first be had
Machine amine ester TPP is mixed, and is stirred, and is then added sodium chloride, potassium oxalate, ethylenediamine tetra-acetic acid, is stirred, then
Phytic acid, citric acid, formic acid are added, is stirred, is eventually adding potassium hydroxide, pH to 6~7 is adjusted, that is, obtains neutral rust remover.
Embodiment five
A kind of neutral rust remover, is prepared from the following raw materials in parts by weight：170 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium chloride 1.5
Part, 1.5 parts of potassium chloride, 1.6 parts of potassium oxalate, 1.6 parts of formic acid, 1.6 parts of phytic acid, 3 parts of citric acid, 1.6 parts of ethylenediamine tetra-acetic acid, have
7 parts of machine amine ester TPP.
Organic amine ester TPP in the present embodiment is selected from the organic amine ester TPP tables of Xin Wei Science and Technology Ltd.s of Shenzhen production
Face activating agent.
The preparation method of the neutral rust remover：The raw material of above parts by weight is weighed, 1-hydroxy ethylidene-1,1-diphosphonic acid and will first be had
Machine amine ester TPP is mixed, and is stirred, and is then added sodium chloride, potassium oxalate, ethylenediamine tetra-acetic acid, is stirred, then
Phytic acid, citric acid, formic acid are added, is stirred, is eventually adding potassium hydroxide, pH to 6~7 is adjusted, that is, obtains neutral rust remover.
Comparative example one：The neutral rust remover of certain company production commercially.
Comparative example two：The Deruster for metal that control group two produces for certain company commercially.
Test：
The test of derusting effect and rate of corrosion is carried out to the neutral rust remover of the present embodiment one to five, according to HG/T2387-
2007 calculate the rate of corrosion of cleaning.Shown in its method of testing and the following Tables 1 and 2 of result.
Table 1：The derusting effect of neutral rust remover in embodiment one to five
| Sequence number | Test sample | Test condition | Testing time | Cleaning performance |
| Embodiment one | 45 steel | Normal temperature, immersion | 27min | Remove more thoroughly |
| Embodiment two | 45 steel | Normal temperature, immersion | 25min | Remove thorough |
| Embodiment three | 45 steel | Normal temperature, immersion | 20min | Remove thorough |
| Example IV | 45 steel | Normal temperature, immersion | 23min | Remove thorough |
| Embodiment five | 45 steel | Normal temperature, immersion | 22min | Remove thorough |
| Control group one | 45 steel | Normal temperature, immersion | 40min | Remove more thoroughly |
Therefore, as it can be seen from table 1 being contrasted with existing neutral rust remover, during the derusting of neutral rust remover of the invention
Between it is shorter, derusting speed is fast, and the effect that derusts is preferable, meets HG/T2387-2007《Industrial equipment Chemical cleaning quality mark
It is accurate》Regulation.
Table 2：The rate of corrosion test of neutral rust remover in embodiment one to five
| Sequence number | Testing time | 45 steel | Cast iron | Copper |
| Embodiment one | 2h | 0.30(g·m-2·h-1) | 0.39(g·m-2·h-1) | 0.1(g·m-2·h-1) |
| Embodiment two | 2h | 0.27(g·m-2·h-1) | 0.37(g·m-2·h-1) | 0.07(g·m-2·h-1) |
| Embodiment three | 2h | 0.21(g·m-2·h-1) | 0.32(g·m-2·h-1) | 0.02(g·m-2·h-1) |
| Example IV | 2h | 0.24(g·m-2·h-1) | 0.35(g·m-2·h-1) | 0.05(g·m-2·h-1) |
| Embodiment five | 2h | 0.23(g·m-2·h-1) | 0.34(g·m-2·h-1) | 0.04(g·m-2·h-1) |
| Control group two | 2h | 0.57(g·m-2·h-1) | 0.59(g·m-2·h-1) | 0.19(g·m-2·h-1) |
From table 2 it can be seen that being contrasted with existing Deruster for metal, the rate of corrosion of neutral rust remover of the invention reduces,
Corrosion resistance and good, meet.
Therefore, can be drawn from test result, compared with prior art, derusting effect is preferable at normal temperatures by the present invention, removes
Speed of becoming rusty is fast, and decay resistance is preferable, while sheet material is not produced and damaged, can be more satisfactory reach invention mesh
's.
It the above is only the feature implementation example of the present invention, the scope of the present invention be not limited in any way.It is all to use together
The technical scheme formed Deng exchange or equivalence replacement, all falls within rights protection scope of the present invention.
Claims (7)
- A kind of 1. neutral rust remover, it is characterised in that：It is prepared from the following raw materials in parts by weight：1-hydroxy ethylidene-1,1-diphosphonic acid 130~ 1~3 part of 170 parts, sodium chloride and/or potassium chloride, 0.4~1.6 part of potassium oxalate, 0.4~1.6 part of formic acid, 0.4~1.6 part of phytic acid, 1~3 part of citric acid, 0.4~1.6 part of ethylenediamine tetra-acetic acid, 3~7 parts of organic amine ester TPP.
- A kind of 2. neutral rust remover according to claim 1, it is characterised in that：It is prepared from the following raw materials in parts by weight： 1.5~2.5 parts of 140~160 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium chloride and/or potassium chloride, 0.7~1.3 part of potassium oxalate, formic acid 0.7 ~1.3 parts, 0.7~1.3 part of phytic acid, 1.5~2.5 parts of citric acid, 0.7~1.3 part of ethylenediamine tetra-acetic acid, organic amine ester TPP 4 ~6 parts.
- A kind of 3. neutral rust remover according to claim 1, it is characterised in that：It is prepared from the following raw materials in parts by weight： 2 parts of 150 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, sodium chloride and/or potassium chloride, 1 part of potassium oxalate, 1 part of formic acid, 1 part of phytic acid, 2 parts of citric acid, 1 part of ethylenediamine tetra-acetic acid, 5 parts of organic amine ester TPP.
- A kind of 4. neutral rust remover according to claim 1 or 2 or 3, it is characterised in that：Described sodium chloride and potassium chloride Weight ratio be 1:1.
- A kind of 5. neutral rust remover according to claim 1 or 2 or 3, it is characterised in that：Described organic amine ester originates from depth Zhen Shi Xin Wei Science and Technology Ltd.s.
- A kind of 6. neutral rust remover according to claim 1 or 2 or 3, it is characterised in that：Described neutral rust remover pH is 6~7.
- A kind of 7. preparation method of neutral rust remover, it is characterised in that：Comprise the following steps：(1) first 1-hydroxy ethylidene-1,1-diphosphonic acid and organic amine ester TPP are mixed, stirred；(2) sodium chloride and/or potassium chloride, potassium oxalate, ethylenediamine tetra-acetic acid are added in the mixed liquor that step (1) obtains, fully Stir；(3) phytic acid, citric acid, formic acid are added in the mixed liquor that step (2) obtains, stirred；(4) potassium hydroxide is added in the mixed liquor that step (3) obtains, pH to 6~7 is adjusted, that is, obtains neutral rust remover.
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| CN108505052A (en) * | 2018-02-11 | 2018-09-07 | 吉林省电力科学研究院有限公司 | A kind of superheater and reheater anti-deposit type complex cleaning and washing agent, device and method |
| CN108660461A (en) * | 2018-06-27 | 2018-10-16 | 东莞盛翔精密金属有限公司 | Preparation method of the efficient paraffin removal of polished part of copper except the integrated cleaning agent of oxidation |
| CN108977810A (en) * | 2018-08-08 | 2018-12-11 | 临沂兰青生物科技有限公司 | Biological rust remover and its application method |
| CN109487285A (en) * | 2018-12-28 | 2019-03-19 | 湖北博新材料保护有限公司 | One kind agreeing with Coating Pretreatment productive temp neutral deoiling derusting cleaning agent and preparation method |
| CN110923727A (en) * | 2019-12-12 | 2020-03-27 | 广东红日星实业有限公司 | Grinding fluid cleaning agent and preparation method thereof |
| CN111172547A (en) * | 2020-02-14 | 2020-05-19 | 佛山市南海区巨人化学品制造有限公司 | Organic environment-friendly rust remover and preparation method and application thereof |
| CN112176355A (en) * | 2020-10-23 | 2021-01-05 | 山东大学 | Environment-friendly neutral rust remover and preparation method thereof |
| CN112831790A (en) * | 2021-01-29 | 2021-05-25 | 刘艳 | Medical efficient rust and scale removing agent and preparation method thereof |
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| CN108505052A (en) * | 2018-02-11 | 2018-09-07 | 吉林省电力科学研究院有限公司 | A kind of superheater and reheater anti-deposit type complex cleaning and washing agent, device and method |
| CN108660461A (en) * | 2018-06-27 | 2018-10-16 | 东莞盛翔精密金属有限公司 | Preparation method of the efficient paraffin removal of polished part of copper except the integrated cleaning agent of oxidation |
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| CN110923727A (en) * | 2019-12-12 | 2020-03-27 | 广东红日星实业有限公司 | Grinding fluid cleaning agent and preparation method thereof |
| CN111172547A (en) * | 2020-02-14 | 2020-05-19 | 佛山市南海区巨人化学品制造有限公司 | Organic environment-friendly rust remover and preparation method and application thereof |
| CN112176355A (en) * | 2020-10-23 | 2021-01-05 | 山东大学 | Environment-friendly neutral rust remover and preparation method thereof |
| CN112176355B (en) * | 2020-10-23 | 2022-05-17 | 山东大学 | Environment-friendly neutral rust remover and preparation method thereof |
| CN112831790A (en) * | 2021-01-29 | 2021-05-25 | 刘艳 | Medical efficient rust and scale removing agent and preparation method thereof |
| CN114293194A (en) * | 2021-12-31 | 2022-04-08 | 河北濡春新能源集团有限公司 | Neutral oil and rust removing agent and preparation method and application thereof |
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