CN105018945A - Environmental-friendly metal surface treatment fluid - Google Patents
Environmental-friendly metal surface treatment fluid Download PDFInfo
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- CN105018945A CN105018945A CN201410164331.9A CN201410164331A CN105018945A CN 105018945 A CN105018945 A CN 105018945A CN 201410164331 A CN201410164331 A CN 201410164331A CN 105018945 A CN105018945 A CN 105018945A
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Abstract
The invention discloses an environmental-friendly metal surface treatment fluid. The treatment fluid is prepared from the following raw materials in percentage by weight: 2-7% of triethanolamine, 3-8% of a glacial acetic acid, 1-5% of thiourea, 2-7% of trisodium orthophosphate, 7-15% of a sulfuric acid, 1-5% of methenamine, 3-8% of a phosphoric acid, 2-7% of Tx-10, 3-8% of a macromolecular composite synergistic surfactant, 1-5% of urea, 2-7% of industrial salt, and the balance of water. Through the utilization of the treatment fluid disclosed by the invention, various oil contaminations, rusty spots and oxide skins attached to metal surfaces can be effectively and quickly removed; the treatment fluid does not contain concentrated acids or alkalis and organic solvents, so that the treatment fluid is non-toxic and non-corrosive, and has no stimulation to the human body, therefore, the treatment fluid is an environmental-friendly metal treatment fluid.
Description
Technical field
The invention belongs to field of metal surface treatment technology, specifically a kind of clean liquid that the surface of metallic substance and metal products is carried out to oil removing, eliminated rust, descales.
Background technology
In metal surface treatment technology, method traditional at present has two kinds substantially, one processes with physical method, namely manually carry out the cleaning of greasy dirt and to scrape with cutter or the mode of metal brush wiper eliminates rust, the method not only labour intensity is large, and the manpower of needs is many, and efficiency is low, and the rust dirt caused that eliminates rust flies upward, everywhere to the environment of surrounding.Another kind of method of chemical treatment, namely utilizes highly basic oil removing, and the twice matting of strong acid rust cleaning has been come; The method needs to build Liang Ge operating pool, the place taken is large, and highly basic and strong acid have strong impulse sense to human body, the acid mist severe contamination air produced, the discharge severe contamination water resources of waste acid water, affect and destroy the Sustainable development of water resources, after the metallic surface after concentrated hydrochloric acid cleaning generally stops 3 minutes in an atmosphere, secondary oxidation corrosion can be produced.
At present, there is a variety of electrochemical deoiling rust remover to metallic substance both at home and abroad, overcome above-mentioned shortcoming in play a positive role, but produce again that deoiling effect is poor, the speed that eliminates rust is slow, Disposal quality is unstable simultaneously, be only applicable to the defect such as greasy dirt and the not too serious greasy dirt corrosion of rust staining.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of environment-friendly type metal surface treatment solution can removing various greasy dirts, rust staining and the oxide skin of adhering to metallic surface effectively fast.It utilizes the synergy of plurality of raw materials, to metallic surface without excessive erosion and at about one month without secondary oxidation corrosion.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of environment-friendly type metal surface treatment solution, this treatment solution is formed by the preparation of raw material of following weight per-cent: trolamine 2 ~ 7%, Glacial acetic acid 3 ~ 8%, thiocarbamide 1 ~ 5%, tertiary sodium phosphate 2 ~ 7%, sulfuric acid 7 ~ 15%, urotropine 1 ~ 5%, phosphoric acid 3 ~ 8%, Tx-10,2 ~ 7%, high polymer composite synergistic activator 3 ~ 8%, urea 1 ~ 5%, Industrial Salt 2 ~ 7%, surplus is water.
The present invention selects above-mentioned raw materials to combine, and compound method is:
(1) take thiocarbamide, tertiary sodium phosphate, urotropine, urea and Industrial Salt (sodium-chlor) respectively according to said ratio, add water each raw material heating for dissolving respectively, stirs, and amount of water, with each raw material all degree of being dissolved as, makes the work in-process aqueous solution respectively;
(2) respectively respective dilute aqueous solution is made in the dilution of Glacial acetic acid, sulfuric acid and phosphoric acid, described sulfuric acid adopts concentration to be the vitriol oil of 98%, and described phosphoric acid adopts the strong phosphoric acid of 85%;
(3) the work in-process aqueous solution in step (1) is mixed successively, stirs, then the dilute aqueous solution of each acid in step (2) is added, finally add high polymer composite synergistic activator, trolamine and Tx-10 by described proportioning, fill up the water of described proportional quantity again, stir, namely make metal surface treating liquid.
Above-mentioned each raw material effect produces synergy, mutually promote, increase substantially degreasing and rust removal ability, not only can remove light oil gently to become rusty, and heavy oil can be removed heavily become rusty (comprising oxide skin), both overcome the halfway shortcoming of Solvent degreasing, and overcome again the deficiency that alkali cleaning difficulty removes serious greasy dirt, also overcome other defect that comprehensive treatment agent deoiling effect is poor, rust cleaning ability is weak.The function of each raw material is respectively:
Trolamine: have deoiling function, can generate salt with organic acid and inorganic acid reaction, is a kind of complex compound preferably, has protection, anti-oxidation function, can be used as promoting agent, inhibiter, also can be used for the antirust of metal to metallic surface; Its content preferably 3 ~ 5%.
Thiocarbamide is used as metal antirusting agent, its content preferably 2 ~ 4%.Tertiary sodium phosphate as the additive of decontamination of deoiling, its content preferably 3 ~ 5%.
Sulfuric acid has the effect of ferric oxide of removing steel surface, can be used for the rust cleaning of metallic surface, descales, its content preferably 9 ~ 12%.
Urotropine: play complexing action in the feed, also has the effect of catalysis and promotion, can be used as the inhibiter slowing down metallic corrosion, its content preferably 2 ~ 4%.Phosphatizing is phosphatization, its content preferably 5 ~ 7%.
Tx-10 can increase compounding conjunction raw material surfactivity as emulsifying agent, plays expansion emulsifying effect, its content preferably 3 ~ 5%.
High polymer composite synergistic activator: there is comprehensive action, by the simple preparation with different material, the function such as realize oil removing, rust cleaning, scale removal respectively, remove contamination, and can treatment effect be improved, and use easy and simple to handle, harmless, environmentally safe, this composite synergist contains surfactant emulsifies thing, can accelerate rust cleaning and cleaning course, its content preferably 5 ~ 7%.
Urea can form oxide film, has anti-oxidation function, its content preferably 3 ~ 5%.
The speed of response of raw material all accelerated by Industrial Salt and Glacial acetic acid, plays katalysis, the content of Industrial Salt preferably 3 ~ 5%, the content of Glacial acetic acid preferably 4 ~ 6%.
The metal conditioner formulated according to above-mentioned raw materials can to metallic surface by pervious course and the media material generation chemical reaction forming rust staining, through surfactant emulsifies, decompose greasy dirt and rusty stain, can destroy rapidly, decompose, peel off the sticking power of greasy dirt on metallic surface and rust staining, thus the effect reaching an oil removing, eliminate rust, descale.
The beneficial effect adopting technique scheme to produce is: (1) degreasing and rust removal speed is fast, about 5 ~ 8min, shortens processing operation time; Effectively thoroughly can remove the various greasy dirts of metallic surface attachment, the layer that turns blue, the oxide skin of rust staining and attachment, and the metallic surface after cleaning can form one deck densification, evenly protective membrane, makes metal products oxidation of no longer getting rusty in 1 month in the environment of drying; And strong adaptability, be applicable to remove various sheet material, the multiple greasy dirt of section bar, corrosion and oxide skin, and under normal temperature condition, disposablely fast complete.(2) technique is simple, and easy to operate, good stability, can be recycled, and low to operator's technical requirements.(3) treatment solution of the present invention does not produce excessive erosion and hydrogen embrittlement to metallic surface matrix, belongs to the exfoliated rust cleaning of infiltration, occurs, use safety without excessive erosion phenomenon.And used solution waste water is reusable after reclaiming, precipitate, filtering.(4) solution chamber of the present invention internal contamination is few, does not need frequent discharge, odorless, produces without acid mist, and etching apparatus and factory building, not safe and reliable, and good stability, never degenerates, non-volatile, safe and reliable.
Embodiment
Reagent of the present invention is conventional reagent, and wherein " high polymer composite synergistic activator " is the patented product directly bought in Nanyang City, Henan Province " Nanyang Hong Jinyuan Chemical Engineering Technology institute ", and the patent No. of the patented product is: 200810231025.7.
Embodiment 1
(1) take following raw materials according according to the component in table 1 embodiment 1: thiocarbamide, tertiary sodium phosphate, urotropine, urea and Industrial Salt (sodium-chlor), and measure the water of required share; Add water each raw material heating for dissolving respectively, stirs, and amount of water, with each raw material all degree of being dissolved as, makes the work in-process aqueous solution respectively;
(2) respectively respective dilute aqueous solution is made in the dilution of Glacial acetic acid, sulfuric acid and phosphoric acid, described sulfuric acid adopts concentration to be the vitriol oil of 98%, and described phosphoric acid adopts the strong phosphoric acid of 85%;
(3) the work in-process aqueous solution in step (1) is mixed successively, stirs, then the dilute aqueous solution of each acid in step (2) is added, finally add high polymer composite synergistic activator, trolamine and Tx-10 by the proportioning in table 1, add the remaining water yield again, stir, namely make metal surface treating liquid.
The proportioning (unit weight per-cent) of each raw material of table 1 embodiment 1 ~ 6
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Trolamine | 2 | 3 | 5 | 4 | 7 | 6 |
| Glacial acetic acid | 8 | 6 | 4 | 5 | 3 | 6 |
| Thiocarbamide | 5 | 4 | 2 | 1 | 5 | 3 |
| Tertiary sodium phosphate | 7 | 3 | 3 | 5 | 2 | 6 |
| Sulfuric acid | 8 | 12 | 10 | 9 | 7 | 15 |
| Urotropine | 5 | 2 | 4 | 3 | 5 | 1 |
| Phosphoric acid | 6 | 5 | 5 | 7 | 8 | 3 |
| Tx-10 | 7 | 5 | 3 | 2 | 3 | 4 |
| High polymer composite synergistic activator | 8 | 6 | 5 | 7 | 3 | 4 |
| Urea | 5 | 1 | 4 | 5 | 3 | 3 |
| Industrial Salt | 2 | 3 | 5 | 3 | 7 | 6 |
| Water | 37 | 50 | 50 | 49 | 54 | 43 |
The compound method of embodiment 2 ~ 6 is with embodiment 1, and the proportioning of its raw material is see table 1.
The using method of the metal surface treating liquid prepared in above-described embodiment: build a work pool that can heat, add surface treatment liquid prepared in each embodiment above-mentioned, pending metal works is soaked in above-mentioned treatment solution at about 30 DEG C (30 ± 5 DEG C), 5 ~ 10min greasy dirt and rust staining can Automatic-fallings, the workpiece of Ex-all greasy dirt, rust staining and oxide skin, can carry out spraying or the mopping work of postorder after drying., in dry environment, there is not anticaustic in 1 month in the metal works after treatment solution process of the present invention.
To sum up, the treatment solution in the present invention does not discharge, and can be recycled, and along with the increase of process piece count, the solid impurity in solution is removed.
Claims (3)
1. an environment-friendly type metal surface treatment solution, for metallic surface oil removing and rust cleaning, is characterized in that this treatment solution is formed by the preparation of raw material of following weight per-cent: trolamine 2 ~ 7%, Glacial acetic acid 3 ~ 8%, thiocarbamide 1 ~ 5%, tertiary sodium phosphate 2 ~ 7%, sulfuric acid 7 ~ 15%, urotropine 1 ~ 5%, phosphoric acid 3 ~ 8%, Tx-10,2 ~ 7%, high polymer composite synergistic activator 3 ~ 8%, urea 1 ~ 5%, Industrial Salt 2 ~ 7%, surplus is water.
2. environment-friendly type metal surface treatment solution according to claim 1, is characterized in that the weight percent of described raw material is: trolamine 3 ~ 5%, Glacial acetic acid 4 ~ 6%, thiocarbamide 2 ~ 4%, tertiary sodium phosphate 3 ~ 5%, sulfuric acid 9 ~ 12%, urotropine 2 ~ 4%, phosphoric acid 5 ~ 7%, Tx-10,3 ~ 5%, high polymer composite synergistic activator 5 ~ 7%, urea 3 ~ 5%, Industrial Salt 3 ~ 5%, surplus is water.
3. environment-friendly type metal surface treatment solution according to claim 1, is characterized in that the weight percent of described raw material is: trolamine 4%, Glacial acetic acid 6%, thiocarbamide 3%, tertiary sodium phosphate 6%, sulfuric acid 10%, urotropine 3%, phosphoric acid 5%, Tx-10,3%, high polymer composite synergistic activator 6%, urea 4%, Industrial Salt 3%, surplus is water.
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| CN201410164331.9A CN105018945A (en) | 2014-04-23 | 2014-04-23 | Environmental-friendly metal surface treatment fluid |
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| CN201410164331.9A CN105018945A (en) | 2014-04-23 | 2014-04-23 | Environmental-friendly metal surface treatment fluid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868515A (en) * | 2017-01-23 | 2017-06-20 | 麻城天安化工股份有限公司 | A kind of metal surface activation agent and preparation method thereof |
| CN107988609A (en) * | 2017-12-20 | 2018-05-04 | 苏州禾川化学技术服务有限公司 | A kind of steel degreasing and rust removal descales cleaning agent |
| CN108468054A (en) * | 2018-04-23 | 2018-08-31 | 河南宗源环保科技有限公司 | A kind of no acid mist decontamination oil removing Deruster for metal |
| CN108658145A (en) * | 2018-06-29 | 2018-10-16 | 河南妙天控股有限公司 | A kind of industrial sewage purification treatment fluid and preparation method thereof |
| CN112391635A (en) * | 2020-09-28 | 2021-02-23 | 常熟童海金属制品有限公司 | Preparation method of detergent solution for cleaning metal plate |
-
2014
- 2014-04-23 CN CN201410164331.9A patent/CN105018945A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868515A (en) * | 2017-01-23 | 2017-06-20 | 麻城天安化工股份有限公司 | A kind of metal surface activation agent and preparation method thereof |
| CN107988609A (en) * | 2017-12-20 | 2018-05-04 | 苏州禾川化学技术服务有限公司 | A kind of steel degreasing and rust removal descales cleaning agent |
| CN108468054A (en) * | 2018-04-23 | 2018-08-31 | 河南宗源环保科技有限公司 | A kind of no acid mist decontamination oil removing Deruster for metal |
| CN108658145A (en) * | 2018-06-29 | 2018-10-16 | 河南妙天控股有限公司 | A kind of industrial sewage purification treatment fluid and preparation method thereof |
| CN112391635A (en) * | 2020-09-28 | 2021-02-23 | 常熟童海金属制品有限公司 | Preparation method of detergent solution for cleaning metal plate |
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Application publication date: 20151104 |