CN105800802A - Composite type phosphorous-free corrosion and scale inhibitor - Google Patents
Composite type phosphorous-free corrosion and scale inhibitor Download PDFInfo
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- CN105800802A CN105800802A CN201610337243.3A CN201610337243A CN105800802A CN 105800802 A CN105800802 A CN 105800802A CN 201610337243 A CN201610337243 A CN 201610337243A CN 105800802 A CN105800802 A CN 105800802A
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- 230000007797 corrosion Effects 0.000 title claims abstract description 60
- 238000005260 corrosion Methods 0.000 title claims abstract description 60
- 239000002455 scale inhibitor Substances 0.000 title abstract description 5
- 239000002131 composite material Substances 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910001868 water Inorganic materials 0.000 claims abstract description 57
- 230000005764 inhibitory process Effects 0.000 claims abstract description 38
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims abstract description 22
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 16
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 16
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 16
- 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 12
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 12
- 229940005574 sodium gluconate Drugs 0.000 claims abstract description 12
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 12
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 9
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 13
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 11
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 claims description 9
- DCEMCPAKSGRHCN-UHFFFAOYSA-N oxirane-2,3-dicarboxylic acid Chemical compound OC(=O)C1OC1C(O)=O DCEMCPAKSGRHCN-UHFFFAOYSA-N 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 8
- 230000003301 hydrolyzing effect Effects 0.000 claims description 8
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 8
- 229920002125 Sokalan® Polymers 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 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 description 7
- 239000004320 sodium erythorbate Substances 0.000 claims description 7
- 235000010352 sodium erythorbate Nutrition 0.000 claims description 7
- RBWSWDPRDBEWCR-RKJRWTFHSA-N sodium;(2r)-2-[(2r)-3,4-dihydroxy-5-oxo-2h-furan-2-yl]-2-hydroxyethanolate Chemical compound [Na+].[O-]C[C@@H](O)[C@H]1OC(=O)C(O)=C1O RBWSWDPRDBEWCR-RKJRWTFHSA-N 0.000 claims description 7
- 150000003751 zinc Chemical class 0.000 claims description 7
- 230000002401 inhibitory effect Effects 0.000 abstract description 10
- 239000011701 zinc Chemical class 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 18
- 239000011574 phosphorus Substances 0.000 description 18
- 229910052698 phosphorus Inorganic materials 0.000 description 18
- 239000003112 inhibitor Substances 0.000 description 16
- 238000009472 formulation Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 5
- 238000013329 compounding Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 230000000116 mitigating effect Effects 0.000 description 3
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 125000002843 carboxylic acid group Chemical group 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- XMXNVYPJWBTAHN-UHFFFAOYSA-N potassium chromate Chemical compound [K+].[K+].[O-][Cr]([O-])(=O)=O XMXNVYPJWBTAHN-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- -1 maleic acid acid anhydride Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 150000003613 toluenes Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/105—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Abstract
The invention discloses composite type phosphorous-free corrosion and scale inhibitor.The composite type phosphorous-free corrosion and scale inhibitor is composed of, by weight, 20-30 parts of S-carboxyalkylthiosuccinic acid (CETSA), 10-15 parts of sodium gluconate, 5-8 parts of sodium benzoate, 10-20 parts of hydroxy-propyl acrylate (HPA), 5-10 parts of zinc sulfate and 35-45 parts of water.CETSA is good in water solubility and biodegradability and has good corrosion and scale inhibition performance within a wide pH range, and particularly after CETSA is compounded with sodium gluconate, hydroxy-propyl acrylate (HPA), Zn salt and the like, the corrosion inhibiting rate is remarkably raised.Under the conditions that the temperature is 45 DEG C and the mass fraction is 20 micrograms/g, the corrosion inhibiting rate of the composite type phosphorous-free corrosion and scale inhibitor can reach 93.2%, and the scale inhibiting rate reaches 98.5%.
Description
Technical field
The present invention relates to environmental protection corrosion inhibiting and descaling agent technical field, be specifically related to a kind of compound phosphate-free corrosion inhibition antisludging agent.
Background technology
Along with electric power and the fast development of steel and iron industry, the consumption of recirculated cooling water is increasing.In order to prevent the bad phenomenon such as corrosive pipeline caused by recirculated cooling water and fouling, generally need to add a certain amount of anti-incrustation corrosion inhibitor in recirculated cooling water, but because containing materials such as phosphoric acid salts, entering environment and can cause body eutrophication, serious pollution of water environment in traditional anti-incrustation corrosion inhibitor.Therefore, developing a kind of novel non-phosphate anti-incrustation corrosion inhibitor has become current environmental protection and water treatment agent field key subjects urgently to be resolved hurrily, and in commercial production, the usage amount of recirculated cooling water is increasing, and the whole world is faced with the problem that water resource is exhausted simultaneously.Water saving, energy-saving and cost-reducing, the safe and stable operation of guarantee production equipment and solution global water crisis aspect are played an important role by the application of corrosion inhibiting and descaling agent treatment technology.
The mainly corrosion inhibiting and descaling agent with phosphate as main component of industrial use, because causing the eutrophication of water body containing a large amount of phosphorus after the recirculated cooling water discharge of these chemicals treatment, causes the heavy damage of ecological environment.Based on this understanding, after the nineties in 20th century, many countries start the discharge of phosphorus restriction, and the phosphorus content of Germany's externally row's cooling water controls at below 4mg/L, and Italy controls at below 0.5mg/L.Therefore development environment is friendly low-phosphorous, phosphate-free corrosion inhibition antisludging agent are necessary, and the Circulating Cooling Water Treatment Agent Fit of China is to low-phosphorous, and Green Chemistry water treatment agent direction without phosphorus, eco-friendly is developed.
In recent years, along with day by day improving and environmental legislation increasingly strict of people's environmental consciousness, people it is also proposed the highest requirement to water treatment agent.At present, organic phosphate analog copolymer is the widest corrosion inhibiting and descaling agent of domestic and international application, but in such corrosion inhibiting and descaling agent, the discharge of phosphorus can cause water source eutrophication, causes red tide phenomenon, ecological environment can be produced the biggest impact.Therefore, research and develop low-phosphorous, without phosphorus corrosion inhibiting and descaling agent and will become the Main way of water treatment agent development from now on.
Summary of the invention
For problem above, the invention provides a kind of high-strength energy-saving environmental protection type water reducer and preparation method, can effectively solve the problem in background technology.
To achieve these goals, the technical solution used in the present invention is as follows:
Formula one: mark by weight is made up of following raw material:
S-carboxyethyl sulfosuccinic acid (CETSA) 20-30 part, sodium gluconate 10-15 part, sodium benzoate 5-8 part, Hydroxypropyl acrylate (HPA) 10-20 part, zinc sulfate 5-10 part, water 35-45 part.
One as inventive formulation one is preferred, and mark by weight is made up of following raw material:
S-carboxyethyl sulfosuccinic acid (CETSA) 25 parts, sodium gluconate 12 parts, sodium benzoate 6 parts, Hydroxypropyl acrylate (HPA) 15 parts, 8 parts of zinc sulfate, 40 parts of water.
Formula two: mark by weight is made up of following raw material:
Poly-epoxy succinic acid (PESA) 20-24 part, polyacrylic acid (PAA) 20-24 part, hydrolytic polymaleic anhydride (HPMA) 10-14 part, BTA (BTA) 10-12 part, water 35-45 part.
One as inventive formulation two is preferred, and mark by weight is made up of following raw material:
Poly-epoxy succinic acid (PESA) 22 parts, polyacrylic acid (PAA) 22 parts, hydrolytic polymaleic anhydride (HPMA) 12 parts, BTA (BTA) 11 parts, 40 parts of water.
Formula three: mark by weight is made up of following raw material:
Acrylic acid-2-acrylamide-2-methyl propane sulfonic copolymer (AA/AMPS) 30-40 part, sodium benzoate 20-30 part, sulfamic acid 2-4 part, sodium erythorbate 4-8 part, zinc salt 25-30 part, water 35-45 part.
One as inventive formulation three is preferred, and mark by weight is made up of following raw material:
35 parts of acrylic acid-2-acrylamide-2-methyl propane sulfonic copolymer (AA/AMPS), sodium benzoate 25 parts, sulfamic acid 3 parts, sodium erythorbate 6 parts, zinc salt 27 parts, 40 parts of water.
Beneficial effects of the present invention:
(1) in inventive formulation one, CETSA has good water solublity and biological degradability, in the range of wide pH, there is preferable corrosion and scale inhibition performance, after especially it being compounded with sodium gluconate, Hydroxypropyl acrylate (HPA) and Zn salt etc., its corrosion inhibition rate is greatly improved.It is under the conditions of 45 DEG C and mass fraction are 20 μ g/g, its corrosion inhibition rate up to 93.2%, scale inhibition performance reach 98.5%.
(2) in inventive formulation two, poly-epoxy succinic acid (PESA) has N structure without phosphorus, non-, its manufacturing process cleans, can be environmentally friendly end product by microorganism or fungus degrading, PESA has inhibition, scale inhibition and dispersion triple functions concurrently, have wide range of applications, be the phosphorous renewal product with high polymer class corrosion-mitigation scale-inhibition dispersions of tradition.PESA applies also for high alkalinity, high rigidity water system simultaneously, such as boiler water process, cold water process, sewage disposal, desalinization, membrance separation etc., it is to these high alkalinities and the tolerance of high solids content water system, it even can be played a role under high circulation multiple, compared with tradition medicament, water saving may be up to more than 30%, has good synergism, can compound with other multiple anti-incrustation corrosion inhibitors.
(3) in inventive formulation three, AA/AMPS is owing to containing the good carboxylic acid group of scale inhibition and dispersion performance and highly polar sulfonic group in molecular structure, calcium tolerance can be improved, the calcium phosphate in water, calcium carbonate, zinc dirt etc. are had significant scale effect, and dispersive property is excellent.Compounding with organic phosphine, potentiation is obvious.It is particularly suitable for the water quality of high pH, high alkalinity, high rigidity, is one of optimal dirt dispersion agent realizing high concentration multiple operation, there is Compound Water process performance without phosphorus, efficient, eco-friendly, and there is higher corrosion and scale inhibition performance simultaneously.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1:
S-carboxyethyl sulfosuccinic acid (CETSA) 20 parts, sodium gluconate 10 parts, sodium benzoate 5 parts, Hydroxypropyl acrylate (HPA) 10 parts, 5 parts of zinc sulfate, 35 parts of water.
Embodiment 2
S-carboxyethyl sulfosuccinic acid (CETSA) 25 parts, sodium gluconate 12 parts, sodium benzoate 6 parts, Hydroxypropyl acrylate (HPA) 15 parts, 8 parts of zinc sulfate, 40 parts of water.
Embodiment 3
S-carboxyethyl sulfosuccinic acid (CETSA) 30 parts, sodium gluconate 15 parts, sodium benzoate 8 parts, Hydroxypropyl acrylate (HPA) 20 parts, 10 parts of zinc sulfate, 45 parts of water.
Embodiment 4
Poly-epoxy succinic acid (PESA) 20 parts, polyacrylic acid (PAA) 20 parts, hydrolytic polymaleic anhydride (HPMA) 10 parts, BTA (BTA) 10 parts, 35 parts of water.
Embodiment 5
Poly-epoxy succinic acid (PESA) 22 parts, polyacrylic acid (PAA) 22 parts, hydrolytic polymaleic anhydride (HPMA) 12 parts, BTA (BTA) 11 parts, 40 parts of water.
Embodiment 6
Poly-epoxy succinic acid (PESA) 24 parts, polyacrylic acid (PAA) 24 parts, hydrolytic polymaleic anhydride (HPMA) 14 parts, BTA (BTA) 12 parts, 45 parts of water.
Embodiment 7
30 parts of acrylic acid-2-acrylamide-2-methyl propane sulfonic copolymer (AA/AMPS), sodium benzoate 20 parts, sulfamic acid 2 parts, sodium erythorbate 4 parts, zinc salt 25 parts, 35 parts of water.
Embodiment 8
35 parts of acrylic acid-2-acrylamide-2-methyl propane sulfonic copolymer (AA/AMPS), sodium benzoate 25 parts, sulfamic acid 3 parts, sodium erythorbate 6 parts, zinc salt 27 parts, 40 parts of water.
Embodiment 9
40 parts of acrylic acid-2-acrylamide-2-methyl propane sulfonic copolymer (AA/AMPS), sodium benzoate 30 parts, sulfamic acid 4 parts, sodium erythorbate 8 parts, zinc salt 30 parts, 45 parts of water.
Concrete
(1) synthesis of S-carboxyethyl sulfosuccinic acid:
One equipped with thermometer, agitator there-necked flask in add a certain amount of maleic anhydride (II), distilled water, in thermostatical oil bath and under atmospheric agitation, heat this system to about 75 DEG C, make maleic anhydride be completely dissolved；Then a small amount of β-mercaptopropionic acid (I) is dissolved in toluene, and this toluene solution is added in this there-necked flask, regulate this system pH to 5 with glacial acetic acid；Then add a small amount of Neutral potassium chromate and make catalyst, under agitation this system temperature is increased to 140 DEG C, stirring reaction 2h under 140 DEG C of constant temperatures；Then filtered while hot, filtrate cooling recrystallization, refilter dried, just obtain white powder, be this product: S-carboxyethyl sulfosuccinic acid, be called for short CETSA.
(2) new and effective non-phosphorus scale and corrosion inhibitor is compounding:
In view of CETSA is as other non-phosphorus scale and corrosion inhibitors, there is scale-inhibiting properties still may be used, the feature of corrosion inhibition congenital defect, the non-phosphate inhibitors such as above-mentioned prepared CETSA and sodium gluconate, sodium benzoate, hydrolytic polymaleic anhydride (HPMA), zinc sulfate are carried out compounding and the screening of variable concentrations by this experiment, therefrom find out the compound recipe of the more excellent non-phosphorus scale and corrosion inhibitor of corrosion inhibition.
(3) the CETSA dosage impact on corrosion mitigating effect:
Along with CETSA dosage increases, its corrosion mitigating effect strengthens the most therewith, and when CETSA mass concentration is more than 20 μ g/g, its corrosion inhibition rate increases inconspicuous, and up to about 55%, hence it is evident that not as good as the corrosion inhibition rate of traditional phosphorus system anti-incrustation corrosion inhibitor.Therefore, independent CETSA makees anti-incrustation corrosion inhibitor, its corrosion inhibition does not reaches far away the technology requirement of tradition phosphorus system anti-incrustation corrosion inhibitor, it is necessary to other non-phosphate inhibitors, CETSA is carried out science and compounds, and can meet or exceed the corrosion inhibition of tradition phosphorus system anti-incrustation corrosion inhibitor.
(4) with anhydrous maleic acid acid anhydride and β-mercaptopropionic acid as primary raw material, Neutral potassium chromate is that catalyst has synthesized S-carboxyethyl sulfosuccinic acid.This product has preferable anticorrosion-antiscaling property in the range of the width of pH=4～9；A kind of new type compound phosphate-free corrosion inhibition antisludging agent being re-dubbed by corrosion inhibiter without phosphorus with other for S-carboxyethyl sulfosuccinic acid, improves thirties percentage points before its corrosion inhibition rate is not more compounding；When it is when the mass fraction of recirculated water is 20 μ g/g, and corrosion inhibition rate is up to 93.2%, hence it is evident that be better than traditional phosphorus system anti-incrustation corrosion inhibitors such as PAPE and ATMPS；In water, the mass concentration of chloride ion increases the corrosion mitigating effect on product certain impact, but controls when below 500mg/L by the mass concentration of chloride ion in water, has no significant effect the corrosion inhibition of phosphate-free corrosion inhibition antisludging agent；Along with the raising of recirculated water concentration rate, the scale inhibitor rate of anti-incrustation corrosion inhibitor all can have decline in various degree.So, when using this new type compound phosphate-free corrosion inhibition antisludging agent, control to be advisable below 3.5 by recirculated water concentration rate.
Based on above-mentioned, it is an advantage of the current invention that, in inventive formulation one, CETSA has good water solublity and biological degradability, in the range of wide pH, there is preferable corrosion and scale inhibition performance, after especially it being compounded with sodium gluconate, Hydroxypropyl acrylate (HPA) and Zn salt etc., its corrosion inhibition rate is greatly improved.It is under the conditions of 45 DEG C and mass fraction are 20 μ g/g, its corrosion inhibition rate up to 93.2%, scale inhibition performance reach 98.5%.
In inventive formulation two, poly-epoxy succinic acid (PESA) has N structure without phosphorus, non-, its manufacturing process cleans, can be environmentally friendly end product by microorganism or fungus degrading, PESA has inhibition, scale inhibition and dispersion triple functions concurrently, have wide range of applications, be the phosphorous renewal product with high polymer class corrosion-mitigation scale-inhibition dispersions of tradition.PESA applies also for high alkalinity, high rigidity water system simultaneously, such as boiler water process, cold water process, sewage disposal, desalinization, membrance separation etc., it is to these high alkalinities and the tolerance of high solids content water system, it even can be played a role under high circulation multiple, compared with tradition medicament, water saving may be up to more than 30%, has good synergism, can compound with other multiple anti-incrustation corrosion inhibitors.
In inventive formulation three, AA/AMPS, owing to containing the good carboxylic acid group of scale inhibition and dispersion performance and highly polar sulfonic group in molecular structure, can improve calcium tolerance, the calcium phosphate in water, calcium carbonate, zinc dirt etc. is had significant scale effect, and dispersive property is excellent.Compounding with organic phosphine, potentiation is obvious.It is particularly suitable for the water quality of high pH, high alkalinity, high rigidity, is one of optimal dirt dispersion agent realizing high concentration multiple operation, there is Compound Water process performance without phosphorus, efficient, eco-friendly, and there is higher corrosion and scale inhibition performance simultaneously.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (6)
1. a compound phosphate-free corrosion inhibition antisludging agent, it is characterised in that mark by weight is made up of following raw material:
S-carboxyethyl sulfosuccinic acid (CETSA) 20-30 part, sodium gluconate 10-15 part, sodium benzoate 5-8 part, Hydroxypropyl acrylate (HPA) 10-20 part, zinc sulfate 5-10 part, water 35-45 part.
The compound phosphate-free corrosion inhibition antisludging agent of one the most according to claim 1, it is characterised in that mark by weight is made up of following raw material:
S-carboxyethyl sulfosuccinic acid (CETSA) 25 parts, sodium gluconate 12 parts, sodium benzoate 6 parts, Hydroxypropyl acrylate (HPA) 15 parts, 8 parts of zinc sulfate, 40 parts of water.
3. a compound phosphate-free corrosion inhibition antisludging agent, it is characterised in that mark by weight is made up of following raw material:
Poly-epoxy succinic acid (PESA) 20-24 part, polyacrylic acid (PAA) 20-24 part, hydrolytic polymaleic anhydride (HPMA) 10-14 part, BTA (BTA) 10-12 part, water 35-45 part.
The compound phosphate-free corrosion inhibition antisludging agent of one the most according to claim 3, it is characterised in that mark by weight is made up of following raw material:
Poly-epoxy succinic acid (PESA) 22 parts, polyacrylic acid (PAA) 22 parts, hydrolytic polymaleic anhydride (HPMA) 12 parts, BTA (BTA) 11 parts, 40 parts of water.
5. a compound phosphate-free corrosion inhibition antisludging agent, it is characterised in that mark by weight is made up of following raw material:
Acrylic acid-2-acrylamide-2-methyl propane sulfonic copolymer (AA/AMPS) 30-40 part, sodium benzoate 20-30 part, sulfamic acid 2-4 part, sodium erythorbate 4-8 part, zinc salt 25-30 part, water 35-45 part.
The compound phosphate-free corrosion inhibition antisludging agent of one the most according to claim 5, it is characterised in that mark by weight is made up of following raw material:
35 parts of acrylic acid-2-acrylamide-2-methyl propane sulfonic copolymer (AA/AMPS), sodium benzoate 25 parts, sulfamic acid 3 parts, sodium erythorbate 6 parts, zinc salt 27 parts, 40 parts of water.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052675A (en) * | 2018-08-16 | 2018-12-21 | 科威天使环保科技集团股份有限公司 | Environment-friendly type anti-incrustation corrosion inhibitor and preparation method thereof |
| CN110963584A (en) * | 2018-09-28 | 2020-04-07 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for natural pH operation and application thereof |
| CN110963583A (en) * | 2018-09-28 | 2020-04-07 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for high-hardness water and application thereof |
| CN110963586A (en) * | 2018-09-28 | 2020-04-07 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for low-hardness water and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20040053571A (en) * | 2002-12-17 | 2004-06-24 | 에스케이케미칼주식회사 | Method of water-treatment for preventing corrosion anc scale of metal in cooling system |
| CN104355418A (en) * | 2014-10-24 | 2015-02-18 | 中国海洋石油总公司 | Preparation method of non-phosphorus corrosion and scale inhibitor |
| CN105000683A (en) * | 2015-07-10 | 2015-10-28 | 杨红微 | Phosphorus-free, green and environment-friendly slow-release scale inhibitor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052675A (en) * | 2018-08-16 | 2018-12-21 | 科威天使环保科技集团股份有限公司 | Environment-friendly type anti-incrustation corrosion inhibitor and preparation method thereof |
| CN110963584A (en) * | 2018-09-28 | 2020-04-07 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for natural pH operation and application thereof |
| CN110963583A (en) * | 2018-09-28 | 2020-04-07 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for high-hardness water and application thereof |
| CN110963586A (en) * | 2018-09-28 | 2020-04-07 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for low-hardness water and application thereof |
| CN110963584B (en) * | 2018-09-28 | 2021-07-30 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for natural pH operation and application thereof |
| CN110963586B (en) * | 2018-09-28 | 2021-07-30 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for low-hardness water and application thereof |
| CN110963583B (en) * | 2018-09-28 | 2021-08-03 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor suitable for high-hardness water and application thereof |
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