CN105386065B - A kind of rust remover and preparation method thereof - Google Patents
A kind of rust remover and preparation method thereof Download PDFInfo
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- CN105386065B CN105386065B CN201510762499.4A CN201510762499A CN105386065B CN 105386065 B CN105386065 B CN 105386065B CN 201510762499 A CN201510762499 A CN 201510762499A CN 105386065 B CN105386065 B CN 105386065B
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- acid
- water
- rust remover
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- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/063—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors heterocyclic compounds
Abstract
The invention provides a kind of rust remover and preparation method thereof, is related to metal conditioner technical field, and the weight proportion of its component is：Hydrofluoric acid 2.5%, hydrochloric acid 17%, oxalic acid 7.5%, corrosion inhibiter 3%, diaminoethanes tetraacethyl 2%, oxirane and higher aliphatic condensation product 0.6%, surplus are water, and the corrosion inhibiter is by methenamine, imidazolidinyl urea and rosin imidazoline ammonium salt according to 3：0.4：0.9 weight forms than compounding.Rust remover provided by the invention is in use, simple acid solution derusting in compared with prior art, its caused acid mist significantly reduces, and on the premise of equal frequency of use, the replacing number of rust remover is only the half of prior art, the waste of acid is largely reduced, production process is more environmentally-friendly, greatly reduces the production cost of Steel Pipe Enterprise.
Description
Technical field
The present invention relates to a kind of metal conditioner and preparation method thereof, more particularly to a kind of rust remover and the rust remover
Preparation method.
Background technology
Steel pipe generally will first carry out processing of rust removing before phosphatization cold-drawn.At present, the method to derust in the industry have Mechanical Method and
The major class of chemical method two.Mechanical Method is because labor intensity is big, efficiency is low, dust pollution is serious, in addition to a few cases, general steel pipe
Production firm's derusting all uses chemical method.
Steel pipe chemical derusting, simplest method are that the iron rust of steel tube surface is handled using hydrochloric acid or sulfuric acid,
For derusting effect, hydrochloric acid is higher than sulfuric acid, but it exist one it is most fatal the shortcomings that：In production process, hydrochloric acid is easily waved
Send out and produce larger amount of acid mist, be so not only degrading operating environment, and cause to periphery steel construction and relevant device
Certain corrosion.In view of this consideration, so many factories still use sulphuric acid rust removal now.Either hydrochloride derusting, still
Sulphuric acid rust removal, problems with all be present：Above-mentioned acid solution rust remover is in the later stage used, with the reduction of acid concentration, ferrous iron concentration
Rise, derusting speed can become very slow, now, even if it is dense to improve acid, produce effects also less, under this situation, if wanting to remove
Rust is thorough, only thoroughly changes the acid solution in acid tank, therefore using acid derusting larger amount of acid solution can be caused to waste merely, to ring
Border is unfavorable, and the production cost of enterprise is also higher.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of acid mist yield is few, sour wastage is few, be advantageous to environmental protection and
Reduce the rust remover of enterprise's production cost and the preparation method of the rust remover.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：A kind of rust remover, the weight of its component are matched somebody with somebody
Than for：Hydrofluoric acid 2.5%, hydrochloric acid 17%, oxalic acid 7.5%, corrosion inhibiter 3%, diaminoethanes tetraacethyl 2%, oxirane and
Higher aliphatic condensation product 0.6%, surplus are water, and the corrosion inhibiter is by methenamine, imidazolidinyl urea and rosin imidazoline ammonium
Salt is according to 3：0.4：0.9 weight forms than compounding.
In the present invention, the method for preparing above-mentioned rust remover comprises the following steps：
The first step, each component is ready to according to foregoing weight proportion, and be contained in cell therefor, from dress water
Take a part of water to add in reactor in container, then stir on one side, while according to foregoing weight proportion toward elder generation in reactor
Hydrofluoric acid, oxalic acid, diaminoethanes tetraacethyl are added afterwards；
Second step, the solution that the first step is obtained are heated to 40-48 DEG C, are slowly stirred and treat that said components are completely dissolved in water
In, then stop heating；
3rd step, after completing second step again by foregoing weight proportion toward sequentially adding corrosion inhibiter and epoxy in reactor
Ethane and higher aliphatic condensation product, be then stirred continuously after solution it is fully emulsified it is scattered after stand half an hour；
4th step, after completing the 3rd step, then by foregoing weight proportion toward being slowly added into hydrochloric acid in reactor, and water will be filled
Container in remaining water be slowly added to reactor and can obtain foregoing rust remover；
Above steps is to carry out at ambient pressure.
The beneficial effect that the present invention obtains is：Rust remover provided by the invention in use, compared with prior art
In simple acid solution derusting, its caused acid mist significantly reduces, and on the premise of equal frequency of use, rust remover is more
The half that number is only prior art is changed, largely reduces the waste of acid, the feature of environmental protection greatly improves, and advantageously reduces enterprise
The production cost of industry.
Embodiment
As one embodiment of the present invention, a kind of rust remover, the weight proportion of its component is：Hydrofluoric acid 2.5%, salt
Acid 17%, oxalic acid 7.5%, corrosion inhibiter 3%, diaminoethanes tetraacethyl 2%, oxirane and higher aliphatic condensation product
0.6%, surplus is water, and the corrosion inhibiter is by methenamine, imidazolidinyl urea and rosin imidazoline ammonium salt according to 3：0.4：0.9
Weight forms than compounding.
As another aspect of the present invention, the method for preparing above-mentioned rust remover comprises the following steps：
The first step, each component is ready to according to above-mentioned weight proportion, and be contained in cell therefor, from the appearance of dress water
Take a part of water to add in reactor in device, then stir on one side, while according to foregoing weight proportion toward priority in reactor
Add hydrofluoric acid, oxalic acid, diaminoethanes tetraacethyl；
Second step, the solution that the first step is obtained are heated to 40-48 DEG C, are slowly stirred and treat that said components are completely dissolved in water
In, then stop heating；
3rd step, after completing second step according still further to above-mentioned weight proportion toward sequentially adding corrosion inhibiter and epoxy in reactor
Ethane and higher aliphatic condensation product, be then stirred continuously after solution it is fully emulsified it is scattered after stand half an hour；
4th step, after completing the 3rd step, then by above-mentioned weight proportion toward being slowly added into hydrochloric acid in reactor, and water will be filled
Remaining water is slowly added to reactor and can obtain above-mentioned rust remover in container；
Each step is to carry out at ambient pressure above.
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
It not is limitation of the invention to apply the content that example refers to.
Embodiment 1：
At ambient pressure, according to hydrofluoric acid 2.5%, hydrochloric acid 17%, oxalic acid 7.5%, (corrosion inhibiter is by Wu Luotuo for corrosion inhibiter 3%
Product, imidazolidinyl urea and rosin imidazoline ammonium salt are according to 3：0.4：0.9 weight forms than compounding), diaminoethanes tetraacethyl
2%, each component is ready to by oxirane and higher aliphatic condensation product 0.6%, surplus for the weight proportion of water, and is contained in
In cell therefor, first take a part of water to add in reactor from the container of dress water, then stir on one side, while toward reactor
Middle priority adds hydrofluoric acid, oxalic acid, diaminoethanes tetraacethyl, the solution in reactor then is heated into 40-48 DEG C, slowly
Stirring, treats that said components are completely dissolved in water and stops heating again, afterwards again toward sequentially adding corrosion inhibiter and epoxy in reactor
Ethane and higher aliphatic condensation product, be then stirred continuously after solution it is fully emulsified it is scattered after stand half an hour, finally again toward anti-
Answer and hydrochloric acid is slowly added into kettle, and remaining water in the container of water will be filled and be slowly added to reactor and can obtain removing for the present embodiment
Rust agent；
Above steps is to carry out at ambient pressure.
Hereafter, the processing of rust removing obtained rust remover being used for before steel pipe phosphatization cold-drawn, rust remover provided by the invention
Application method is similar with simple acid solution derusting in the prior art, and its specifically used step is：Rust remover and water are first pressed 0.8：1
Weight ratio be watered and be well mixed, you can obtain rust removing solution, then will obtain rust removing solution injection acid tank in, steel pipe using dipping
Mode derusted, sling frequently in descaling process steel pipe shaken in groove with accelerate derusting process, shorten derusting the time, on
State that to be watered and carry out the process of steel pipe derusting with obtained rust removing solution rust remover carried out under conditions of normal temperature, normal pressure.
It should be noted that, it is necessary to periodic detection acid tank during steel pipe derusting production is carried out with above-mentioned rust remover
The content of ferrous ion in interior rust removing solution, just needed removing in acid tank when the content of ferrous ion is more than 110g/L
Rust liquid is all changed, can be toward acid tank when the content of ferrous ion is less than 110g/L, but the speed that derusts is slower
It is interior to add new rust removing solution to improve derusting speed.
The rust remover that the present embodiment 1 provides is derusted in certain large-sized seamless steel pipe manufacturing enterprise at the beginning of 2015 at home
Pilot production, test period are ended in by the end of October, 2015, drawn to draw a conclusion：With the present embodiment 1 provide rust remover by weight
Than 0.8：When 1 rust removing solution for being watered modulation carries out steel pipe derusting, the acid mist amount of production scene is few, and production environment is greatly changed
Kind, the enterprise is derusted with simple acid solution to steel pipe in the past when, every three months will all change the acid solution in acid tank
Once, when the rust removing solution provided with the present embodiment 1 is derusted, the rust removing solution in an acid tank is just changed close to half a year, is derusted
Sour utilization rate is high in liquid, the waste of acid is greatly reduced, production process is more environmentally-friendly, and the production cost of enterprise also obtains
It is greatly reduced.
Rust remover provided by the invention is can be seen that compared with the derusting acid solution of prior art from above-mentioned result of the test, its
The yield of acid mist is considerably reduced in the production process to be derusted before for steel pipe phosphatization cold-drawn, substantially improves the life of enterprise
Environment is produced, it not only has good derusting effect, it is often more important that reduce the replacing number of rust removing solution, reduce the wave of acid
Take, reduce the production cost of enterprise, achieve significant economical and environmentally friendly benefit.
Above-described embodiment is the preferable implementation of the present invention, and in addition, the present invention can be realized with other manner,
Any obviously replaced on the premise of not departing from the technical program design within protection scope of the present invention.
Finally it should be emphasised that in order to allow those of ordinary skill in the art more easily to understand the present invention relative to existing
There are the improvements of technology, some descriptions of the invention have been simplified, and for the sake of clarity, present specification is also omitted
Some other elements, those of ordinary skill in the art should be aware that these elements omitted also may make up the interior of the present invention
Hold.
Claims (2)
1. a kind of rust remover, the weight proportion of its component are：Hydrofluoric acid 2.5%, hydrochloric acid 17%, oxalic acid 7.5%, corrosion inhibiter 3%, diamino
Base ethane tetraacethyl 2%, oxirane and higher aliphatic condensation product 0.6%, surplus are water；
The corrosion inhibiter is by methenamine, imidazolidinyl urea and rosin imidazoline ammonium salt according to 3：0.4：0.9 weight is than compounding
Form.
2. a kind of method for preparing the rust remover described in claim 1, comprises the following steps：
The first step, each component is ready to according to the weight proportion described in claim 1, and be contained in cell therefor, from
Fill and take a part of water to add in reactor in the container of water, then while stirring, while matching somebody with somebody according to the weight described in claim 1
Than toward successively adding hydrofluoric acid, oxalic acid, diaminoethanes tetraacethyl in reactor；
Second step, the solution that the first step is obtained are heated to 40-48 DEG C, are slowly stirred and treat that said components are completely dissolved in water,
Then heating is stopped；
3rd step, after completing second step according still further to the weight proportion described in claim 1 toward sequentially adding inhibition in reactor
Agent and oxirane and higher aliphatic condensation product, be then stirred continuously after solution it is fully emulsified it is scattered after stand half an hour；
4th step, after completing the 3rd step, then weight proportion as described in claim 1 is toward being slowly added into hydrochloric acid in reactor, and
Remaining water in the container of water will be filled it is slowly added to reactor and can obtain rust remover described in claim 1；
Above steps is to carry out at ambient pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762499.4A CN105386065B (en) | 2015-11-11 | 2015-11-11 | A kind of rust remover and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762499.4A CN105386065B (en) | 2015-11-11 | 2015-11-11 | A kind of rust remover and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105386065A CN105386065A (en) | 2016-03-09 |
| CN105386065B true CN105386065B (en) | 2017-11-14 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590056A (en) * | 2012-08-14 | 2014-02-19 | 苏州一方金属表面处理科技有限公司 | Cold-rolled sheet detergent |
| WO2015003416A1 (en) * | 2013-07-12 | 2015-01-15 | Wang Endong | Environmentally friendly phosphoric acid concentrate used for dust removal, rust removal and phosphorization, and use thereof |
| CN105002510A (en) * | 2015-08-06 | 2015-10-28 | 潘桂枝 | Metal rust remover |
-
2015
- 2015-11-11 CN CN201510762499.4A patent/CN105386065B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590056A (en) * | 2012-08-14 | 2014-02-19 | 苏州一方金属表面处理科技有限公司 | Cold-rolled sheet detergent |
| WO2015003416A1 (en) * | 2013-07-12 | 2015-01-15 | Wang Endong | Environmentally friendly phosphoric acid concentrate used for dust removal, rust removal and phosphorization, and use thereof |
| CN105002510A (en) * | 2015-08-06 | 2015-10-28 | 潘桂枝 | Metal rust remover |
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| Publication number | Publication date |
|---|---|
| CN105386065A (en) | 2016-03-09 |
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