CN109082673B - Environment-friendly oil and rust removing agent and preparation method thereof - Google Patents
Environment-friendly oil and rust removing agent and preparation method thereof Download PDFInfo
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- CN109082673B CN109082673B CN201811031124.0A CN201811031124A CN109082673B CN 109082673 B CN109082673 B CN 109082673B CN 201811031124 A CN201811031124 A CN 201811031124A CN 109082673 B CN109082673 B CN 109082673B
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 90
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 51
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims abstract description 40
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229940068041 phytic acid Drugs 0.000 claims abstract description 37
- 235000002949 phytic acid Nutrition 0.000 claims abstract description 37
- 239000000467 phytic acid Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000002253 acid Substances 0.000 claims abstract description 27
- 239000004094 surface-active agent Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims description 64
- 239000002184 metal Substances 0.000 abstract description 24
- 229910052751 metal Inorganic materials 0.000 abstract description 24
- 239000003595 mist Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 230000002378 acidificating effect Effects 0.000 abstract description 5
- 238000005554 pickling Methods 0.000 abstract description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 30
- 239000010959 steel Substances 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 238000011282 treatment Methods 0.000 description 6
- 238000009499 grossing Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 phytic acid Chemical compound 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- 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
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
Abstract
The invention relates to an environment-friendly oil and rust removing agent and a preparation method thereof, belonging to the technical field of acidic oil and rust removing agents. The environment-friendly oil and rust removing agent comprises the following components in percentage by mass: 7.5-8.3% of phytic acid, 9.4-10% of sulfamic acid, 0.7-1.1% of hydrofluoric acid, 7.2-9.0% of acetic acid, 14-16% of surfactant and 57-60% of water, wherein the total is 100%. Compared with the traditional acidic oil and rust removing agent, the acid pickling solution disclosed by the invention has excellent oil and rust removing effects and basically does not generate acid mist when metal parts are treated by compounding phytic acid, sulfamic acid, hydrofluoric acid with strong acidity, acetic acid, alkylphenol polyoxyethylene ether surfactant and water to prepare the aqueous environment-friendly oil and rust removing agent.
Description
Technical Field
The invention belongs to the technical field of acidic oil and rust removing agents, and particularly relates to an environment-friendly oil and rust removing agent and a preparation method thereof.
Background
Because the steel metal piece belongs to a more active metal material, the steel metal piece is easily rusted under the influence of the atmospheric environment in the machining and subsequent processes, and even the serious metal piece can influence the surface quality of the part in the subsequent processes of electroplating, paint spraying and the like. Therefore, the steel metal part is pretreated before electroplating or spraying, and the pretreatment comprises oil and rust removal treatment on the steel metal part to remove oil stains and rust stains on the surface of the steel metal part, so that the steel metal part is ensured to have good plating layer or coating quality, and the steel metal part and the plating layer or coating have good bonding force. Generally, steel metal parts with unqualified electroplating or coating quality are mostly caused by incomplete oil and rust removal in the pretreatment of the steel metal parts, so the oil and rust removal treatment of the steel metal parts is very important, and is a very important pretreatment process for the steel metal parts before electroplating or spraying.
Traditional deoiling rust cleaning process is gone on step by step, has that equipment input is big, the process is numerous, water resource use amount is big, waste time and energy not enough, and above-mentioned problem has been solved in the appearance of two unification deoiling rust cleaners, but because two unifications deoiling rust cleaners are mostly acid solution at present, deoiling rust cleaners that make like hydrochloric acid or sulphuric acid and auxiliary agent cooperation have better clean effect to steel metalwork, but brought new problem again: firstly, the generated acid mist is large, is unfavorable for the health of operators and has high corrosivity for steel-structure plants; secondly, during treatment, if the time consumption is long, the workpiece is easy to over-corrode, and if the treatment time is shortened, incomplete oil and rust removal is easy to cause; thirdly, the common feature of the traditional acidic oil and rust removing agent is that the concentration of acid liquid is high, and once the oil and rust removing liquid is stuck on the skin, the skin can be burnt.
Therefore, research on the oil and rust removing agent becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an environment-friendly oil and rust removing agent and a preparation method thereof.
The invention adopts the following technical scheme:
the environment-friendly oil and rust removing agent comprises the following components in percentage by mass: phytic acid 7.5-8.3%, sulfamic acid 9.4-10%, hydrofluoric acid 0.7-1.1%, acetic acid 7.2-9.0%, surfactant 14-16%, and water 57-60%, the total being 100%.
Further, the phytic acid accounts for 50% of the total mass of the fertilizer.
Further, the molar concentration of the acetic acid is 1.0 mol/L.
Further, the surfactant is alkylphenol ethoxylates.
Further, the alkylphenol polyoxyethylene ether surfactant is at least one of OP-9, OP-13, OP-15 and OP-30.
The invention also provides a preparation method of the environment-friendly oil and rust removing agent, which comprises the following steps: according to the mass ratio, the phytic acid, the sulfamic acid, the hydrofluoric acid and the acetic acid are sequentially and slowly added into a reactor, the slow stirring is needed when the phytic acid, the sulfamic acid, the hydrofluoric acid and the acetic acid are added, after the addition of each acid is finished, the slow stirring is carried out for 25-40min, the standing is carried out for 25-35min, the steps are repeated for a plurality of times, finally, the surfactant is added, the stirring is carried out for 1-2h, the water is added, and the.
Furthermore, the rotating speed during slow stirring is 50-80 r/min.
Furthermore, the dropping speed during slow addition is 1-2 drops/s.
Phytic acid, namely phytic acid, is easily dissolved in water and has strong acidity, and when the phytic acid is complexed with metal, a compact monomolecular protective film is formed on the surface of the phytic acid, so that the metal can be prevented from being corroded by oxygen and the like. In addition, the film layer formed on the metal surface after the phytic acid treatment has stronger binding force with the coating. After dissolved in water, sulfamic acid has strong corrosion effect on metals. Hydrofluoric acid has a strong pungent odor, is extremely corrosive, and is excellent in pickling effect, but is used with extreme care. Acetic acid has weak acidity and also has strong corrosivity after being diluted by water. The surfactant can effectively remove oil.
In the invention, the sulfamic acid and the hydrofluoric acid mainly play a role in rust removal, the concentration of the hydrofluoric acid is lower, but the hydrofluoric acid has obvious rust removal capability after being compounded with the sulfamic acid, but more acid mist can appear when steel metal pieces are treated, the volatilization speed of the acid mist is higher, the workshop environment can be polluted, and the over-corrosion phenomenon is easy to generate; the addition of acetic acid and phytic acid can well inhibit the generation of acid mist, so that the acid solution does not generate acid mist basically when used for treating the steel metal parts, the rust removal speed is further accelerated, and the phytic acid plays a role in inhibiting corrosion in the acid solution, so that the steel metal parts can be prevented from being over-corroded. The invention uses alkylphenol polyoxyethylene ether surfactant, which has excellent oil removing effect in the pickling solution, especially the oil removing effect is most outstanding when OP-9 and OP-30 are used together.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the method comprises the following steps: compared with the traditional acidic oil and rust removing agent, the phytic acid, sulfamic acid, hydrofluoric acid with strong acidity, acetic acid, alkylphenol polyoxyethylene ether surfactant and water are compounded to prepare the aqueous environment-friendly oil and rust removing agent, and the addition of the hydrofluoric acid and the addition of other components are controlled, so that the pickling solution has excellent oil and rust removing effects, does not generate acid mist basically when treating metal parts, does not corrode a steel structure workshop, ensures the working environment of a workshop, and provides guarantee for the health of operators;
secondly, the method comprises the following steps: the oil and rust removing agent can be directly used, and only needs to be immediately washed away by tap water when being stuck to the skin in the using process, so that the skin can not be burnt;
thirdly, the method comprises the following steps: the oil and rust removing agent has good oil and rust removing effects on steel metal parts, the treatment time is short, the workpiece can be treated at normal temperature, and the treated workpiece can be washed by clean water;
fourthly: the oil and rust removing agent is nonflammable, and has good stability and safety;
fifth, the method comprises the following steps: after the steel metal part is treated by the oil and rust removing agent, the surface of the metal part is smooth and bright and cannot be over-corroded;
sixth: will have rusty A3After the steel sheet is treated by the oil and rust removing agent, and after the surface of the steel sheet is sprayed with paint, the adhesive force of the coating can reach 0-1 level.
Detailed Description
The present invention is described in further detail below by way of specific embodiments, but those skilled in the art will appreciate that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention.
In the invention, the phytic acid is a phytic acid solution with the mass fraction of 50%, namely inositol hexaphosphoric acid or phytic acid, the density is 1.2820, and the CAS number is 83-86-3.
Hydrofluoric acid, Density 1.1500, CAS number 7664-39-3.
Acetic acid, density 1.0480, molar concentration 1.0 mol/L.
99.5 percent of sulfamic acid, 2.1260 percent of density, 205 ℃ of melting point and 5329-14-6 percent of CAS number.
Example 1
The environment-friendly oil and rust removing agent comprises the following components in percentage by mass: 8% of phytic acid, 10% of sulfamic acid, 1% of hydrofluoric acid, 8% of acetic acid, OP-912%, OP-303% and 58% of water.
The preparation method of the environment-friendly oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid, hydrofluoric acid and acetic acid into a reactor, slowly stirring at 50r/min when adding, slowly stirring for 30min after adding each acid, standing for 30min, continuously stirring at a low speed for 30min, standing for 30min, repeating the stirring and standing operations for ten times, finally sequentially adding surfactants OP-9 and OP-30, continuously stirring for 1.5h, adding water, and uniformly stirring to obtain the environment-friendly oil and rust removing agent.
Example 2
The environment-friendly oil and rust removing agent comprises the following components in percentage by mass: phytic acid 7.5%, sulfamic acid 9.4%, hydrofluoric acid 0.8%, acetic acid 9.0%, OP-911%, OP-153.3% and water 59%.
The preparation method of the environment-friendly oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid, hydrofluoric acid and acetic acid into a reactor, slowly stirring at 60r/min during adding, slowly stirring for 25min after each acid is added, standing for 35min, continuously stirring at a low speed for 25min, standing for 35min, repeating the stirring and standing operations for ten times, finally sequentially adding surfactants OP-9 and OP-15, continuously stirring for 1h, adding water, and uniformly stirring to obtain the environment-friendly oil and rust removing agent.
Example 3
The environment-friendly oil and rust removing agent comprises the following components in percentage by mass: 8.2 percent of phytic acid, 9.4 percent of sulfamic acid, 1.1 percent of hydrofluoric acid, 7.2 percent of acetic acid, OP-138 percent, OP-157.5 percent and 58.6 percent of water.
The preparation method of the environment-friendly oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid, hydrofluoric acid and acetic acid into a reactor, slowly stirring at a speed of 80r/min during adding, slowly stirring for 40min after each acid is added, standing for 25min, continuously stirring for 40min, standing for 25min, repeating the stirring and standing operations for ten times, finally sequentially adding surfactants OP-13 and OP-15, continuously stirring for 2h, adding water, and uniformly stirring to obtain the environment-friendly oil and rust removing agent.
Example 4
The environment-friendly oil and rust removing agent comprises the following components in percentage by mass: phytic acid 7.8%, sulfamic acid 9.9%, hydrofluoric acid 0.7%, acetic acid 7.6%, OP-910%, OP-134% and water 60%.
The preparation method of the environment-friendly oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid, hydrofluoric acid and acetic acid into a reactor, slowly stirring at 50r/min when adding, slowly stirring for 35min after adding each acid, standing for 30min, continuously stirring at a low speed for 35min, standing for 30min, repeating the stirring and standing operations for ten times, finally sequentially adding surfactants OP-9 and OP-13, continuously stirring for 2h, adding water, and uniformly stirring to obtain the environment-friendly oil and rust removing agent.
Example 5
The environment-friendly oil and rust removing agent comprises the following components in percentage by mass: 8.3 percent of phytic acid, 9.6 percent of sulfamic acid, 0.9 percent of hydrofluoric acid, 8.2 percent of acetic acid, OP-916 percent and 57 percent of water.
The preparation method of the environment-friendly oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid, hydrofluoric acid and acetic acid into a reactor, slowly stirring at 50r/min when adding, slowly stirring for 25min after adding each acid, standing for 35min, continuously stirring at a low speed for 25min, standing for 35min, repeating the stirring and standing operations for ten times, finally adding a surfactant OP-9, continuously stirring for 2h, adding water, and uniformly stirring to obtain the environment-friendly oil and rust removing agent.
Comparative example 1
The difference from example 1 is that no hydrofluoric acid is contained, as follows:
the oil and rust removing agent comprises the following components in percentage by mass: 8% of phytic acid, 11% of sulfamic acid, 8% of acetic acid, OP-912%, OP-303% and 58% of water.
The preparation method of the oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid and acetic acid into a reactor, slowly stirring at a speed of 50r/min when adding, slowly stirring for 30min after adding each acid, standing for 30min, continuously stirring at a slow speed for 30min, standing for 30min, repeating the stirring and standing operations for ten times, finally sequentially adding surfactants OP-9 and OP-30, continuously stirring for 1.5h, adding water, and uniformly stirring to obtain the environment-friendly oil and rust removing agent.
Comparative example 2
The difference from example 1 is that acetic acid is not contained, specifically as follows:
the oil and rust removing agent comprises the following components in percentage by mass: 12% of phytic acid, 14% of sulfamic acid, 1% of hydrofluoric acid, OP-912%, OP-303% and 58% of water.
The preparation method of the oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid and hydrofluoric acid into a reactor, slowly stirring at a speed of 50r/min when adding, slowly stirring for 30min after adding each acid, standing for 30min, continuously stirring at a slow speed for 30min, standing for 30min, repeating the stirring and standing operations for ten times, finally sequentially adding surfactants OP-9 and OP-30, continuously stirring for 1.5h, adding water, and uniformly stirring to obtain the environment-friendly oil and rust removing agent.
Comparative example 3
The difference from the example 1 is that acetic acid and phytic acid are not contained, and the specific steps are as follows:
the oil and rust removing agent comprises the following components in percentage by mass: 18% of sulfamic acid, 1.8% of hydrofluoric acid, OP-915%, OP-307.2% and 58% of water.
The preparation method of the oil and rust removing agent comprises the following steps: and (2) according to the mass ratio, dropwise adding sulfamic acid and hydrofluoric acid into a reactor in sequence, stirring at a low speed of 50r/min while adding, after each acid is added, stirring at a low speed for 30min, standing for 30min, continuing to stir at a low speed for 30min, standing for 30min, repeating the stirring and standing operations for ten times, finally adding surfactants OP-9 and OP-30 in sequence, continuing to stir for 1.5h, adding water, and uniformly stirring to obtain the environment-friendly rust remover.
Comparative example 4
The only difference from example 1 is that the surfactant used is OP-10, as follows:
the oil and rust removing agent comprises the following components in percentage by mass: phytic acid 8%, sulfamic acid 10%, hydrofluoric acid 1%, acetic acid 8%, OP-1015% and water 58%.
The preparation method of the oil and rust removing agent comprises the following steps: according to the mass ratio, sequentially dropwise adding phytic acid, sulfamic acid, hydrofluoric acid and acetic acid into a reactor, slowly stirring at 50r/min when adding, slowly stirring for 30min after adding each acid, standing for 30min, continuously stirring at a low speed for 30min, standing for 30min, repeating the stirring and standing operations for ten times, finally adding a surfactant OP-10, continuously stirring for 1.5h, adding water, and uniformly stirring to obtain the environment-friendly rust remover.
Taking a plurality of pieces A with serious corrosion3Cutting steel sheets to 50mm × 50mm, grinding to rust thickness of 0.3mm + -0.02 mm, preparing oil and rust removing liquid according to examples 1-5 and comparative examples 1-4, and processing A at room temperature3The steel sheets are respectively put into the oil and rust removing liquid (A)3The steel sheet is completely immersed in the oil and rust removing liquid), stirring for 1min every 1min, observing that the oil and rust removing on the surface of the steel sheet is complete, recording the time, taking out, washing with clear water, and adsorbing the water on the surface of the steel sheet by using a clean paper towel for standby, wherein the steel sheets treated by the oil and rust removing liquid of examples 1 to 5 and comparative examples 1 to 4 are respectively marked as A1, A2, A3, A4, A5, B1, B2, B3 and B4, and the oil and rust removing time of each steel sheet is as shown in the following table 1:
table 1 oil and rust removing solutions of examples 1 to 5 and comparative examples 1 to 4, completion a3Time for oil and rust removal of steel sheet
| Finish time of oil and rust removal in mm | |
| Example 1 | 15 |
| Example 2 | 18 |
| Example 3 | 16 |
| Example 4 | 20 |
| Example 5 | 20 |
| Comparative example 1 | 28 |
| Comparative example 2 | 25 |
| Comparative example 3 | 18 |
| Comparative example 4 | 28 |
The above examples 1 to 5, comparative example 1 had substantially no acid mist when treating steel sheets, comparative example 2 had slight acid mist, comparative example 3 had marked acid mist, and comparative example 4 had slight acid mist.
Respectively spraying the same thermosetting polyester powder coating on the surfaces of test pieces A1, A2, A3, A4, A5, B1, B2, B3 and B4, curing at 170 ℃ for 35min, standing for natural cooling, and testing the performance of the coating of each test piece, wherein the results are shown in the following table 2:
table 2 oil and rust removing liquid treatments a of examples 1 to 5 and comparative examples 1 to 43Test piece coating performance after steel sheet
| Film adhesion, grade | Appearance of coating film | |
| Example 1 | 0 | Surface smoothing |
| Example 2 | 1 | Surface smoothing |
| Example 3 | 0 | Surface smoothing |
| Example 4 | 1 | Surface smoothing |
| Example 5 | 0 | Surface smoothing |
| Comparative example 1 | 2 | Slightly rough and good overall quality |
| Comparative example 2 | 2 | Slightly rough and good overall quality |
| Comparative example 3 | 4 | Rough surface |
| Comparative example 4 | 1 | Slightly rough and good overall quality |
| Test method | GB/T 9286-1998 | GB/T 9286-1979 |
Claims (6)
1. The environment-friendly oil and rust removing agent is characterized by comprising the following components in percentage by mass: 7.5-8.3% of phytic acid, 9.4-10% of sulfamic acid, 0.7-1.1% of hydrofluoric acid, 7.2-9.0% of acetic acid, 14-16% of surfactant and 57-60% of water, wherein the total is 100%, and the surfactant is OP-9 and OP-30.
2. The environment-friendly oil and rust removing agent as claimed in claim 1, wherein the phytic acid accounts for 50% by weight.
3. The environment-friendly oil and rust removing agent as claimed in claim 1, wherein the molar concentration of the acetic acid is 1.0 mol/L.
4. The preparation method of the environment-friendly oil and rust removing agent as claimed in claim 1, characterized by comprising the following steps: according to the mass ratio, the phytic acid, the sulfamic acid, the hydrofluoric acid and the acetic acid are sequentially and slowly added into a reactor, the slow stirring is needed when the phytic acid, the sulfamic acid, the hydrofluoric acid and the acetic acid are added, after the addition of each acid is finished, the slow stirring is continued for 25-40min, the standing is continued for 25-35min, the steps are repeated for a plurality of times, finally, the surfactant is added, the stirring is continued for 1-2h, the water is added, and the stirring is uniform, so.
5. The preparation method of the environment-friendly oil and rust removing agent as claimed in claim 4, wherein the rotation speed during slow stirring is 50-80 r/min.
6. The preparation method of the environment-friendly oil and rust removing agent as claimed in claim 4, wherein the dropping speed during slow addition is 1-2 drops/s.
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| CN201811031124.0A CN109082673B (en) | 2018-09-05 | 2018-09-05 | Environment-friendly oil and rust removing agent and preparation method thereof |
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| CN109082673B true CN109082673B (en) | 2020-10-23 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004277675A (en) * | 2003-03-19 | 2004-10-07 | Ebara Corp | Scale cleaning agent |
| CN102162105A (en) * | 2011-03-31 | 2011-08-24 | 河南省科学院能源研究所有限公司 | Boiler pipeline descaling agent and preparation method thereof |
| CN102373478A (en) * | 2010-08-20 | 2012-03-14 | 3M创新有限公司 | Rust removal composition |
| CN103484872A (en) * | 2012-06-15 | 2014-01-01 | 中国石油化工股份有限公司 | Pickling solution containing compounded passivating agent, and preparation method thereof |
| CN103789775A (en) * | 2012-10-26 | 2014-05-14 | 北京白象新技术有限公司 | Compound rapid medical apparatus rust remover |
| CN107675191A (en) * | 2017-11-24 | 2018-02-09 | 重庆信人科技发展有限公司 | A kind of acid deoiling brightener |
| CN108034951A (en) * | 2018-01-03 | 2018-05-15 | 江苏理工学院 | A kind of high temperature nitric acid acidwashing corrosion-retarding fog inhibitor and its application |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100567573C (en) * | 2007-12-03 | 2009-12-09 | 武汉双博新技术有限公司 | A kind of environment-friendly type multifunctional steel surface processing agent |
| CN101440495A (en) * | 2008-01-22 | 2009-05-27 | 北京科技桥科贸有限公司 | Environment protection type rapid strong oil-removing rust-removing agent |
| CN103014732A (en) * | 2013-01-07 | 2013-04-03 | 常州市卯旺化工有限公司 | Environmentally-friendly steel oil and rust removing solution at normal temperature |
| NL2013010C2 (en) * | 2014-06-17 | 2015-07-29 | Handelsonderneming En Hoogwerkerverhuur Mcw | METHOD FOR DESTROYING A SURFACE. |
| CN108315744B (en) * | 2018-02-08 | 2020-04-21 | 江南大学 | Oil and rust removing agent and preparation method and application thereof |
-
2018
- 2018-09-05 CN CN201811031124.0A patent/CN109082673B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004277675A (en) * | 2003-03-19 | 2004-10-07 | Ebara Corp | Scale cleaning agent |
| CN102373478A (en) * | 2010-08-20 | 2012-03-14 | 3M创新有限公司 | Rust removal composition |
| CN102162105A (en) * | 2011-03-31 | 2011-08-24 | 河南省科学院能源研究所有限公司 | Boiler pipeline descaling agent and preparation method thereof |
| CN103484872A (en) * | 2012-06-15 | 2014-01-01 | 中国石油化工股份有限公司 | Pickling solution containing compounded passivating agent, and preparation method thereof |
| CN103789775A (en) * | 2012-10-26 | 2014-05-14 | 北京白象新技术有限公司 | Compound rapid medical apparatus rust remover |
| CN107675191A (en) * | 2017-11-24 | 2018-02-09 | 重庆信人科技发展有限公司 | A kind of acid deoiling brightener |
| CN108034951A (en) * | 2018-01-03 | 2018-05-15 | 江苏理工学院 | A kind of high temperature nitric acid acidwashing corrosion-retarding fog inhibitor and its application |
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