CN106757070A - Environmentally friendly restrainer and preparation method thereof - Google Patents
Environmentally friendly restrainer and preparation method thereof Download PDFInfo
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- CN106757070A CN106757070A CN201611058518.6A CN201611058518A CN106757070A CN 106757070 A CN106757070 A CN 106757070A CN 201611058518 A CN201611058518 A CN 201611058518A CN 106757070 A CN106757070 A CN 106757070A
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- restrainer
- acid
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- triazole compound
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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
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention provides a kind of environmentally friendly restrainer, in terms of weight fraction, it is made up of following raw material：15 20 parts of triazole compound, 35 45 parts of sodium gluconate, 3 10 parts of itaconic acid, 3 10 parts of tannic acid, 400 450 parts of water.Preparation method is as follows：(1) add water in glass container, heating water bath is to 80 90 DEG C；(2) and then by triazole compound it is slowly added thereto, it is stirring while adding, it is fully dissolved；(3) sequentially add Pu grape saccharic acid Na ﹑ Yi Kang Suan ﹑ tannic acid and be stirred dissolving, stirring is cooled to 20 30 DEG C and is aged 12 hours after 10 20 minutes；Obtain final product high-efficiency environment friendly corrosion inhibiter of the invention.Environmental protection restrainer of the invention is particularly well-suited to be added in high temperature pickling.
Description
Technical field
The present invention relates to field of metal surface treatment technology, in particular, be related to a kind of environmentally friendly restrainer and its
Preparation method.
Background technology
General large-scale steel enterprise cold-reduced sheet workshop is cold rolling to remove using hydrochloric acid shallow slot turbulent flow continuous acid-washing technology
The iron scale of belt steel surface, adjusting weight of coil provides qualified blank, to ensure that cold rolling function successfully produces conjunction to milling train
The belt steel product of lattice.The concentration of hydrochloric acid generally 13-15% used in this pickling technology（Mass fraction）, temperature in use is 80
±5℃.Under high-temperature strong acid, cold-strip steel can produce Hydrogen Brittleness Phenomena in descaling process, while can also separate out " grey black ", cause
Plate face is uneven, and has a strong impact on the quality of product.
Thus, industrially during chlorohydric acid pickling, it is usually added into restrainer such as amine（Such as monoamine, diamines, acyl
Amine, heterocyclic aromatic amine etc.）, aldehydes（Such as formaldehyde, cinnamic acid）, sulfur-containing compound（Such as thiocarbamide）, phosphorus-containing compound（Such as tricresyl phosphate fourth
Ester）, these corrosion inhibiter mainly use the polar group of atom centered on nitrogen phosphate and sulfur in its molecular structure, with metal watch
Face atom forms chemical bonding and chemisorbed occurs, and so as to form one layer of unimolecule diaphragm in metal surface, prevents acid
With the reaction of metallic matrix, the effect of inhibition is served.Because the reaction of hydrochloric acid and metallic matrix can produce hydrogen, corrosion inhibiter to rise
It is the yield for greatly reducing hydrogen to another result of corrosion inhibition, so as to greatly reduce the generation of hydrochloric acid mist
Amount.The application of these restrainers, serves burn into mitigation " hydrogen embrittlement " problem, the reduction acid mitigated to metal material matrix
The effects such as mist effusion, but there is following technical problem toward contact：
（1）Toxicity is larger, there is safety problem during use；
（2）Inhibition efficiency is low;
（3）Under high-temperature strong acid, cold-strip steel can produce Hydrogen Brittleness Phenomena in descaling process, while can also separate out " grey black ", make
It is uneven into plate face, has a strong impact on the quality of product.
The content of the invention
An object of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of environmentally friendly restrainer, the present invention
Usage amount is few, is added in 0.1% ratio；Inhibition efficiency is up to more than 98%；Surface is white after steel and iron parts pickling bright smooth does not hang black
Ash, is suitable for subsequent technique；Hydrogen Brittleness Phenomena will not be produced after steel and iron parts pickling, the probability of security incident is reduced.
The second object of the present invention is the preparation method for providing the environmentally friendly restrainer.
To achieve the above object, the technical solution adopted by the present invention is as follows：
Environmentally friendly restrainer, in terms of weight fraction, is made up of following raw material：
Triazole compound 15-20 parts, sodium gluconate 35-45 parts, itaconic acid 3-10 parts, tannic acid 3-10 parts, water 400-
450 parts.
Wherein, the preferred BTA of the triazole compound；
Wherein described sodium gluconate is preferred 40-45 parts；
Wherein described itaconic acid is preferred 5-10 parts；
Wherein described tannic acid is preferred 5-10 parts.
The preparation method of environmental protection restrainer of the invention is as follows：
(1) add water in glass container, heating water bath is to 80-90 DEG C；
(2) and then by triazole compound it is slowly added thereto, it is stirring while adding, it is fully dissolved；
(3) sequentially add Pu grape saccharic acid Na ﹑ Yi Kang Suan ﹑ tannic acid and be stirred dissolving, stirring is cooled to after 10-20 minutes
20-30 DEG C is aged 1-2 hours；Obtain final product high-efficiency environment friendly corrosion inhibiter of the invention.
The application method of environmental protection restrainer of the invention：Take the weight portion of hydrochloric acid 1000 of 13-37% concentration, heating water bath
To 80-90 DEG C, the weight portion of high-efficiency environment friendly corrosion inhibiter 1 is added, stirred, sample steel and iron parts are inserted wherein, treat that rust cleaning is clean
After completely, taking-up is rinsed with clear water.
Beneficial effects of the present invention are as follows：
1 ﹑ present invention environmental protection restrainer usage amounts are few, added in 0.1% ratio, and other types corrosion inhibiter is general on the market
Adding proportion reach 0.8-1.2%；
Up to more than 98%, the inhibition efficiency of general corrosion inhibiter is less than 85% to 2 ﹑ inhibition efficiencies；
3 ﹑ are particularly well-suited to high temperature（≥50℃）Added in pickling；
After 4 ﹑ steel and iron parts pickling surface it is white it is bright it is smooth do not hang grey black, be suitable for subsequent technique；
Hydrogen Brittleness Phenomena will not be produced after 5 ﹑ steel and iron parts pickling, the probability of security incident is reduced.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.
Embodiment 1-12
Embodiment 1-12 sets forth several compositions of environmental protection restrainer of the invention, specific as listed by table 1, table 2, its
In, triazole compound 1 is BTA, and triazole compound 2 is 1,2,4- triazoles.The unit of each dispensing numerical value
It is g.
The composition of the embodiment 1-8 of table 1 environmental protection restrainers
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Triazole compound 1 | 18 | 15 | 16 | 17 | 19 | 20 | 18 |
| Sodium gluconate | 40 | 39 | 38 | 37 | 36 | 35 | 40 |
| Itaconic acid | 5 | 6 | 7 | 8 | 9 | 10 | 6 |
| Tannic acid | 5 | 10 | 9 | 8 | 7 | 6 | 7 |
| Water | 432 | 430 | 435 | 440 | 445 | 450 | 435 |
The composition of the embodiment 8-12 of table 2 and comparative example 1-3 environmental protection restrainers
| Embodiment | 8 | 9 | 10 | 11 | 12 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Triazole compound 1 | 18 | 19 | 18 | 20 | 18 | - | 18 | 18 |
| Triazole compound 2 | - | - | - | - | - | 18 | - | - |
| Sodium gluconate | 42 | 40 | 41 | 42 | 40 | 40 | 40 | 40 |
| Itaconic acid | 5 | 5 | 6 | 5 | 6 | 6 | - | 11 |
| Tannic acid | 5 | 5 | 6 | 5 | 5 | 5 | 11 | - |
| Water | 430 | 433 | 435 | 430 | 431 | 431 | 431 | 431 |
Above example 1-12, the preparation method of each pickling additive described in comparative example 1-3 are as follows：
(1) add water in glass container, heating water bath is to 85 DEG C；
(2) and then by triazole compound it is slowly added thereto, it is stirring while adding, it is fully dissolved；
(3) sequentially add Pu grape saccharic acid Na ﹑ Yi Kang Suan ﹑ tannic acid and be stirred dissolving, stirring is cooled to 25 after 10-20 minutes
DEG C ageing 2 hours；Obtain final product high-efficiency environment friendly corrosion inhibiter of the invention.
Above example 1-12, the application method of each pickling additive described in comparative example 1-3 are as follows：
The weight portion of hydrochloric acid 1000 of 30% concentration is taken, heating water bath adds the weight portion of high-efficiency environment friendly corrosion inhibiter 1 to 85 DEG C, and stirring is equal
It is even, sample steel and iron parts are inserted wherein, after rust cleaning is clean completely, taking-up is rinsed with clear water.
Various pickling additives described in above example, comparative example process 10 workpiece respectively, and average effect is shown in Table respectively
3rd, table 4.
The using effect of the embodiment 1-7 of table 3 environmental protection restrainers
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Inhibition efficiency | 99% | 97% | 98% | 97% | 98% | 99% | 98% |
| Acid mist is escaped Amount | It is micro | It is micro | It is micro | It is micro | It is micro | It is micro | It is micro |
| Steel and iron parts acid Wash rear surface | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth not Hang grey black |
| Hydrogen Brittleness Phenomena | Nothing | Nothing | Nothing | Nothing | Nothing | Nothing | Nothing |
The using effect of the embodiment 8-12 of table 4 and comparative example 1-3 environmental protection restrainers
| Embodiment | 8 | 9 | 10 | 11 | 12 | Contrast Example 1 | Contrast Example 2 | Contrast Example 3 |
| Inhibition efficiency | 97% | 98% | 97% | 98% | 99% | 90% | 90% | 89% |
| Acid mist is escaped Amount | It is micro | It is micro | It is micro | It is micro | It is micro | On a small quantity | On a small quantity | On a small quantity |
| Steel and iron parts acid Wash rear surface | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | Bai Liang is smooth Do not hang grey black | On a small quantity Grey black | On a small quantity Grey black | On a small quantity Grey black |
| Hydrogen Brittleness Phenomena | Nothing | Nothing | Nothing | Nothing | Nothing | Nothing | Nothing | Nothing |
The method of testing of projects in table：
Inhibition efficiency：With reference to People's Republic of China (PRC) chemical industry standard HG/T 2387-2007《Industrial equipment Chemical cleaning matter
Amount standard》；
Hydrogen Brittleness Phenomena：1, the good test specimen to be measured of pickling is cleaned with clear water, and removing is attached on the pickle on test specimen, uses absolute ethyl alcohol
Dehydration, is put into drier and takes out standby after 5-10h；2, contained with beaker and take appropriate paraffin, beaker is put in the stone of iron stand
On web, alcolhol burner heating paraffin wax is lighted to melting completely（Paraffin can all submerge test specimen）；Use thermometer measure paraffin liquid
Temperature, be allowed to be maintained at 160~190 DEG C, 5min is kept in this temperature range removing its contained humidity；By above-mentioned test specimen
It is put into paraffin liquid, if there is bubble to produce in 10s（Hydrogen is formed or separated out in surface of test piece）, then the part dehydrogenation is proved not
Good or no dehydrogenation, if being produced without bubble, dehydrogenation effect is good；
Acid mist escaped quantity：Using after environmentally friendly restrainer with using environmentally friendly restrainer before, acid mist escaped quantity is compared.
Claims (6)
1. a kind of environmentally friendly restrainer, in terms of weight fraction, is made up of following raw material：Triazole compound 15-20 parts, Portugal
35-45 parts, itaconic acid 3-10 parts, tannic acid 3-10 parts, water 400-450 parts of grape sodium saccharate.
2. environmental protection restrainer as claimed in claim 1, it is characterised in that the triazole compound is the nitrogen of benzo three
Azoles.
3. environmental protection restrainer as claimed in claim 1, it is characterised in that described sodium gluconate is 40-45 parts.
4. environmental protection restrainer as claimed in claim 1, it is characterised in that described itaconic acid is 5-10 parts.
5. environmental protection restrainer as claimed in claim 1, it is characterised in that described tannic acid is 5-10 parts.
6. the preparation method of environmental protection restrainer is as follows as claimed in claim 1：
(1) add water in glass container, heating water bath is to 80-90 DEG C；
(2) and then by triazole compound it is slowly added thereto, it is stirring while adding, it is fully dissolved；
(3) sequentially add Pu grape saccharic acid Na ﹑ Yi Kang Suan ﹑ tannic acid and be stirred dissolving, stirring is cooled to after 10-20 minutes
20-30 DEG C is aged 1-2 hours, obtains environmentally friendly restrainer of the invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058518.6A CN106757070A (en) | 2016-11-27 | 2016-11-27 | Environmentally friendly restrainer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058518.6A CN106757070A (en) | 2016-11-27 | 2016-11-27 | Environmentally friendly restrainer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106757070A true CN106757070A (en) | 2017-05-31 |
Family
ID=58912528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611058518.6A Pending CN106757070A (en) | 2016-11-27 | 2016-11-27 | Environmentally friendly restrainer and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020865A (en) * | 2007-03-13 | 2007-08-22 | 杨恩弟 | Multifunctional multicomponent metal scavenger |
| CN101845635A (en) * | 2009-03-25 | 2010-09-29 | 中国文化遗产研究院 | Compound silicate corrosion inhibitor for protecting ferruginous historical relics |
| CN104498967A (en) * | 2014-12-31 | 2015-04-08 | 苏州禾川化学技术服务有限公司 | Multifunctional aluminum material corrosion-inhibition polishing pickling agent |
| CN105174505A (en) * | 2015-08-26 | 2015-12-23 | 山东天庆科技发展有限公司 | Composite water processing agent and application thereof |
-
2016
- 2016-11-27 CN CN201611058518.6A patent/CN106757070A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020865A (en) * | 2007-03-13 | 2007-08-22 | 杨恩弟 | Multifunctional multicomponent metal scavenger |
| CN101845635A (en) * | 2009-03-25 | 2010-09-29 | 中国文化遗产研究院 | Compound silicate corrosion inhibitor for protecting ferruginous historical relics |
| CN104498967A (en) * | 2014-12-31 | 2015-04-08 | 苏州禾川化学技术服务有限公司 | Multifunctional aluminum material corrosion-inhibition polishing pickling agent |
| CN105174505A (en) * | 2015-08-26 | 2015-12-23 | 山东天庆科技发展有限公司 | Composite water processing agent and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吕百龄: "《实用工业助剂全书》", 31 July 2001, 化学工业出版社 * |
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Application publication date: 20170531 |
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