CN115449783A - Circulating water phosphorus-free prefilming agent and use method thereof - Google Patents
Circulating water phosphorus-free prefilming agent and use method thereof Download PDFInfo
- Publication number
- CN115449783A CN115449783A CN202211150186.XA CN202211150186A CN115449783A CN 115449783 A CN115449783 A CN 115449783A CN 202211150186 A CN202211150186 A CN 202211150186A CN 115449783 A CN115449783 A CN 115449783A
- Authority
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- China
- Prior art keywords
- free
- circulating water
- acid
- phosphorus
- prefilming
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001529 polyepoxysuccinic acid Polymers 0.000 claims abstract description 9
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims abstract description 6
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012964 benzotriazole Substances 0.000 claims abstract description 6
- 125000001475 halogen functional group Chemical group 0.000 claims abstract description 6
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims abstract description 6
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 6
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 6
- 229940005574 sodium gluconate Drugs 0.000 claims abstract description 6
- 229920001897 terpolymer Polymers 0.000 claims abstract description 6
- RZLVQBNCHSJZPX-UHFFFAOYSA-L zinc sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Zn+2].[O-]S([O-])(=O)=O RZLVQBNCHSJZPX-UHFFFAOYSA-L 0.000 claims abstract description 6
- ZRGONDPMOQPTPL-UHFFFAOYSA-N 1-[2-(2-hydroxyethylsulfanyl)ethyl]-2-methyl-5-phenylpyrrole-3-carboxylic acid Chemical compound OCCSCCN1C(C)=C(C(O)=O)C=C1C1=CC=CC=C1 ZRGONDPMOQPTPL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 7
- 239000010962 carbon steel Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 3
- CZLSHVQVNDDHDQ-UHFFFAOYSA-N pyrene-1,3,6,8-tetrasulfonic acid Chemical compound C1=C2C(S(=O)(=O)O)=CC(S(O)(=O)=O)=C(C=C3)C2=C2C3=C(S(O)(=O)=O)C=C(S(O)(=O)=O)C2=C1 CZLSHVQVNDDHDQ-UHFFFAOYSA-N 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 229940074404 sodium succinate Drugs 0.000 claims 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 235000005811 Viola adunca Nutrition 0.000 abstract description 4
- 240000009038 Viola odorata Species 0.000 abstract description 4
- 235000013487 Viola odorata Nutrition 0.000 abstract description 4
- 235000002254 Viola papilionacea Nutrition 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 4
- 229910000365 copper sulfate Inorganic materials 0.000 abstract description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 3
- 229910052708 sodium Inorganic materials 0.000 abstract description 3
- 239000011734 sodium Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 9
- 229910052698 phosphorus Inorganic materials 0.000 description 9
- 239000011574 phosphorus Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- -1 diethyl triaminepentaacetic acid Chemical compound 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002351 wastewater 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a circulating water phosphorus-free prefilming agent and a using method thereof, and the phosphorus-free prefilming agent provided by the invention comprises zinc sulfate heptahydrate, hydrolyzed polymaleic anhydride, carboxylate-sulfonate-nonionic terpolymer, polyepoxysuccinic acid (sodium), diethyltriaminepentaacetic acid, benzotriazole, hydrochloric acid, 1,3,6, 8-pyrenetetrasulfonic acid tetrasodium salt and sodium gluconate. The pre-filming agent has excellent pre-filming effect in industrial circulating cooling water system, chemical cleaning and pre-filming treatment, fast pre-filming speed, high pre-filming effect, long pre-filming period, the dripping of the film onto the blue-violet part with obvious blue-violet halo, and the color change time difference of the film to the copper sulfate film liquid is greater than or equal to 60s.
Description
The technical field is as follows:
the invention belongs to the field of chemical industry, and particularly relates to a circulating water phosphorus-free prefilming agent and a using method thereof.
The background art comprises the following steps:
an industrial circulating cooling water system needs to be cleaned and pre-filmed before a new system is operated, and an old system needs to be cleaned and pre-filmed in time. A layer of compact protective film can be formed on the surface of the metal after pre-filming, so that the corrosion rate can be effectively reduced, the service lives of the pipeline and the heat exchanger are prolonged, and the normal operation of the system is guaranteed.
In the field of water treatment markets at present, a common cleaning pre-film agent is a phosphorus-containing pre-film agent, and along with increasing demands on non-phosphorization of used agents in the operation of a cooling water system, water eutrophication is reduced, and further the demands on the phosphorus-free pre-film agent are increased. The efficient phosphorus-free pre-filming agent for the cooling water system has an excellent pre-filming effect on chemical cleaning and pre-filming treatment of an industrial circulating cooling water system, has the characteristics of high pre-filming speed, good pre-filming effect, long pre-filming duration, capability of dripping a test film on a part with obvious blue-violet color halo of a hanging piece, capability of ensuring that the color change time difference of the film in reaction with a copper sulfate test film liquid is not less than 10s, strong adaptability of the cooling water system and the like, can be widely applied to the market field of a cooling water system cleaning pre-filming agent, and has a wide market prospect.
The invention content is as follows:
the invention aims to solve the problem that sewage cannot be discharged without phosphorus by using a circulating water phosphorus-free prefilming agent and a using method thereof aiming at the requirement of environmental protection in China on total phosphorus of discharged water.
In order to solve the problems, the technical scheme of the invention is as follows:
a non-phosphorus prefilming agent for circulating water comprises zinc sulfate heptahydrate, hydrolyzed polymaleic anhydride, carboxylate-sulfonate-nonionic terpolymer, polyepoxysuccinic acid compound, diethyl triaminepentaacetic acid, hydrochloric acid, benzotriazole, sodium gluconate, 1,3,6, 8-pyrenetetrasulfonic acid tetrasodium salt and water.
In a further improvement, the polyepoxysuccinic acid compound is polyepoxysuccinic acid sodium.
The further improvement comprises, by mass, 5-10% of zinc sulfate heptahydrate, 20-25% of hydrolyzed polymaleic anhydride, 5-10% of carboxylate-sulfonate-nonionic terpolymer, 16-20% of polyepoxysuccinic acid, 6-10% of diethyl triamine penta-acid, 5% of hydrochloric acid, 0.05% of benzotriazole, 5% of sodium gluconate, 0.05% of 1,3,6, 8-pyrenetetrasulfonic acid tetrasodium salt and the balance of water.
The further improvement comprises the following components in percentage by mass:
the application method of the circulating water phosphorus-free prefilming agent comprises the following steps: and (3) removing oil on the surface of the metal part, soaking the metal part into circulating water phosphorus-free prefilming agent solution, keeping the temperature at 25 ℃ to 1 ℃, and filling air for prefilming for 48 hours to obtain the metal part with bluish purple halos on the surface, thereby completing prefilming.
In a further improvement, the metal part is a 207 carbon steel part, and the concentration of the circulating water phosphorus-free prefilming agent solution is 500mg/L.
In a further improvement, the 207 carbon steel part is a water conveying pipeline made of 207 carbon steel.
The invention has the advantages that:
the phosphorus-containing prefilming agent can be used for prefilming metal, does not contain phosphorus, effectively solves the problem that the phosphorus content in the discharged wastewater is too high due to the existing phosphorus-containing prefilming agent, and is particularly suitable for the requirement of phosphorus-free discharged sewage.
The specific implementation mode is as follows:
in order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention that will be described in detail below are clearly and completely
The non-phosphorus prefilming agent consists of zinc sulfate heptahydrate, hydrolyzed polymaleic anhydride, carboxylate-sulfonate-nonionic terpolymer, polyepoxysuccinic acid (sodium), diethyl triaminepentaacetic acid, sodium gluconate, benzotriazole, hydrochloric acid and 1,3,6, 8-pyrenetetrasulfonic acid tetrasodium salt, wherein the mass percentage of the components is as follows:
the weight percentage of each component is as follows:
the test procedure of the pre-filming effect of the invention is as follows
Taking 2 new hanging pieces of 207 carbon steel (I-shaped) subjected to oil removal treatment, soaking the hanging pieces in 500mL of prepared pre-film liquid (the concentration of the medicament is 500 mg/L), controlling the pre-film liquid at 25 seconds 1 ℃, and slightly filling air for 48 hours to pre-film, wherein the hanging pieces have obvious bluish purple halos.
Effect testing
a) The test membrane solution is prepared by dissolving 15.0g of sodium chloride and 5.0g of copper sulfate (CuSO, 5H 20) in 100ml of distilled water and shaking up for standby.
b) The test membrane is dripped on the part with obvious blue-violet halo of the hanging piece, and the difference of the reaction color change time of the membrane to the copper sulfate test membrane liquid is more than or equal to 10s, so the test membrane is qualified.
The specific experimental results are as follows:
the above-mentioned embodiment is only a specific embodiment of the present invention, and is not meant to be a limitation of the present invention, and any simple modification and replacement thereof are within the scope of the present invention.
Claims (7)
1. A circulating water phosphorus-free prefilming agent is characterized by comprising zinc sulfate heptahydrate, hydrolyzed polymaleic anhydride, carboxylate-sulfonate-nonionic terpolymer, polyepoxysuccinic acid compound, diethyltriaminepentaacetic acid, hydrochloric acid, benzotriazole, sodium gluconate, 1,3,6, 8-pyrenetetrasulfonic acid tetrasodium salt and water.
2. The circulating water phosphorus-free prefilming agent of claim 1, wherein the polyepoxy succinic acid compound is polyepoxy sodium succinate.
3. The circulating water phosphorus-free prefilming agent of claim 1, which comprises, by mass, 5-10% of zinc sulfate heptahydrate, 20-25% of hydrolyzed polymaleic anhydride, 5-10% of carboxylate-sulfonate-nonionic terpolymer, 16-20% of polyepoxysuccinic acid, 6-10% of diethyltriamine penta-acid, 5% of hydrochloric acid, 0.05% of benzotriazole, 5% of sodium gluconate, 0.05% of 1,3,6, 8-pyrenetetrasulfonic acid tetrasulfonic acid tetrasodium salt, and the balance of water.
4. The circulating water phosphorus-free prefilming agent as claimed in claim 3, which comprises, by mass:
5. a method for using the circulating water phosphorus-free prefilming agent as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
and (3) removing oil on the surface of the metal part, soaking the metal part into circulating water phosphorus-free prefilming agent solution, keeping the temperature at 25 ℃ to 1 ℃, and filling air for prefilming for 48 hours to obtain the metal part with bluish purple halos on the surface, thereby completing prefilming.
6. The method for using the circulating water phosphorus-free prefilming agent as claimed in claim 5, wherein the metal part is 207 carbon steel part, and the concentration of the circulating water phosphorus-free prefilming agent solution is 500mg/L.
7. The use method of the circulating water phosphorus-free prefilming agent as claimed in claim 5, wherein the 207 carbon steel component is a water pipe made of 207 carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211150186.XA CN115449783A (en) | 2022-09-21 | 2022-09-21 | Circulating water phosphorus-free prefilming agent and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211150186.XA CN115449783A (en) | 2022-09-21 | 2022-09-21 | Circulating water phosphorus-free prefilming agent and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115449783A true CN115449783A (en) | 2022-12-09 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211150186.XA Pending CN115449783A (en) | 2022-09-21 | 2022-09-21 | Circulating water phosphorus-free prefilming agent and use method thereof |
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2022
- 2022-09-21 CN CN202211150186.XA patent/CN115449783A/en active Pending
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Application publication date: 20221209 |
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