CN108002558A - A kind of phosphate-free corrosion inhibition antisludging agent - Google Patents
A kind of phosphate-free corrosion inhibition antisludging agent Download PDFInfo
- Publication number
- CN108002558A CN108002558A CN201711460113.XA CN201711460113A CN108002558A CN 108002558 A CN108002558 A CN 108002558A CN 201711460113 A CN201711460113 A CN 201711460113A CN 108002558 A CN108002558 A CN 108002558A
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- Prior art keywords
- corrosion inhibiting
- phosphate
- corrosion
- descaling agent
- water
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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
- C02F5/12—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 containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- 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
- C02F2303/08—Corrosion inhibition
-
- 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 a kind of phosphate-free corrosion inhibition antisludging agent, is made by the component of following percentage by weight meter：Hydrolysis of polymaleic anhydride 8 12%, poly-epoxy succinic acid 10 15%, 2 acrylamide of acrylic acid, 2 methyl propane sulfonic acid multiple copolymer 15 20%, carboxylic acid sulfonic acid acrylate terpolymer 10 15%, acrylic hydroxypropyl ester copolymer 8 12%, white vitriol 4 8%, surplus are deionized water.The invention also discloses the preparation method of the corrosion inhibiting and descaling agent:Each component is weighed by formula, sequentially added in blender, under room temperature, normal pressure, stirred to obtain the final product.Corrosion inhibiting and descaling agent of the invention is not phosphorous, component safety and environmental protection, simple production process, scale inhibition is efficient, corrosion inhibition is good, it will not cause the body eutrophication because of caused by the discharge of phosphorus, and with compatibility well, adhesion of the microorganism to equipment can be effectively reduced, the corrosion and scale inhibition performance of medicament can be greatly enhanced.
Description
Technical field
The present invention relates to technology of industrial recirculating cooling water treatment field, more particularly to a kind of phosphate-free corrosion inhibition antisludging agent.
Background technology
Water is primary condition for the survival of mankind, but water resource is limited in the world.The water per capita in China is only
The a quarter of world's water per capita, water resource are more poor.With the high speed development of industry, the ecological balance of water is increasingly subject to
Heavy damage.To solve water resources crisis, sustainable development is adapted to, it is necessary to reasonable using water wisely.Cooling water in industrial water
Dosage accounts for the 60-80% of total water consumption, and therefore, the main target for saving industrial water is to recycle cooling water, as much as possible
Recycling rate of waterused is improved, while reduces blowdown.But during cooling water use, with constantly circulation and concentrate, water chats
The content of material can be also continuously increased, and exacerbate pipeline and equipment corrosion and scale problems.
At present, industrial circulating water corrosion inhibiting and descaling agent is still based on phosphorous formula, but the use of phosphorus-containing compound is led
Water Eutrophication has been caused, has promoted the excessive multiplication of microorganism particularly algae, the speed that organic matter produces is considerably beyond consumption
Speed, organic matter is put aside in water body, destroys water ecology balance.The red tide of some marine site occurrence of large-area of China coast in recent years
Harm and lake algal bloom and water quality deterioration, caused by phosphorus-containing compound, therefore, exploitation is a kind of without phosphorus or without phosphorus slow
Losing antisludging agent becomes the emphasis direction of current water treatment agent development.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of phosphate-free corrosion inhibition antisludging agent, will not cause because
Body eutrophication caused by the discharge of phosphorus, and with compatibility well, can effectively reduce microorganism and equipment is glued
It is attached, the corrosion and scale inhibition performance of medicament can be greatly enhanced.
Technical solution proposed by the present invention is：
A kind of phosphate-free corrosion inhibition antisludging agent, is made by following component：Hydrolysis of polymaleic anhydride, poly-epoxy succinic acid, acrylic acid-
2- acrylamide-2-methyl propane sulfonics multiple copolymer, white vitriol and deionized water.
Preferably, the percentage by weight of each component is：Hydrolysis of polymaleic anhydride 8-12%, poly-epoxy succinic acid 10-15%,
Acrylic acid -2- acrylamide-2-methyl propane sulfonic multiple copolymers 15-20%, white vitriol 4-8%, surplus are deionization
Water.
Preferably, carboxylic acid-sulfonic-acrylic ester terpolymer 10-15% is further included.
Preferably, further include acrylic acid-acrylic acid hydroxypropyl ester copolymer 8-12%,
The preparation method of above-mentioned non-phosphate high-effect corrosion inhibiting and descaling agent, is made as follows：Each component is weighed by formula, successively
Add in blender, under room temperature, normal pressure, stir to obtain the final product.
Preferably, the stirring condition is：70-100r/min, stirs 80-100min.
The application of above-mentioned non-phosphate high-effect corrosion inhibiting and descaling agent, the non-phosphate high-effect corrosion inhibiting and descaling agent can be applicable to condition of water quality such as
Under industrial circulating water in：PH7-9.2, basicity 50-800mg/L, hardness 50-800mg/L, electrical conductivity 500-3200 μ S/cm.
Preferably, the dosage of the non-phosphate high-effect corrosion inhibiting and descaling agent is 20-50mg/L.
Inventive principle：
1st, hydrolysis of polymaleic anhydride is nontoxic, soluble easily in water, and chemical stability and heat endurance are high, and decomposition temperature is at 330 DEG C
More than.Since hydrolysis of polymaleic anhydride scale-inhibiting properties and resistance to elevated temperatures are excellent, in the flash distillation plant of sea water desalination and
It is used widely in low-pressure boiler and industrial circulating cooling water.In addition hydrolysis of polymaleic anhydride has certain corrosion inhibition, with
Zinc salt compounding corrosion mitigating effect is more preferable.
2nd, poly-epoxy succinic acid is a kind of without phosphorus, non-nitrogen environmental type water-soluble polymer.Poly-epoxy succinic acid pair
Calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, calcirm-fluoride and silicon dirt in water have good scale inhibition and dispersion performance, are answered with phosphonate
With with good synergistic function.Poly-epoxy succinic acid biodegradability is good, has wide range of applications, suitable for it is high-alkali,
Cooling water system under the conditions of high hard, high pH is, it can be achieved that high concentration multiple is run.The intermiscibility of PESA and chlorine is good, with other medicines
Agent compatibility is good.
3rd, acrylic acid -2- acrylamide-2-methyl propane sulfonics multiple copolymer is acrylic acid and 2- acrylamide -2- methyl
Propane sulfonic acid (AMPS) copolymerization forms.Due to containing the good carboxylic acid group of scale inhibition and dispersion performance and highly polar sulfonic acid in molecular structure
Base, can improve calcium tolerance, have significant scale effect to the calcium phosphate in water, calcium carbonate, zinc dirt etc., prevent the heavy of iron oxide
Product is especially high to calcium phosphate scale inhibition performance.And dispersion performance is excellent.Compounded with organic phosphine, synergistic effect is obvious.It is particularly suitable for height
PH, high alkalinity, the water quality of high rigidity.
4th, carboxylic acid-sulfonic-acrylic ester terpolymer terpolymer (AA-AMPS-HPA) is due to point in copolymer
Contain strong acid, weak acid and non-ionic group in subchain at the same time, high temperature, high pH, it is high firmly with it is high-alkali under the conditions of there is higher calcium
Tolerance, to the deposition of the dirts such as the calcium carbonate in water, calcium phosphate, zinc dirt, iron oxide and silt, there is excellent suppression to make
With and dispersion performance.
5th, its formation to calcium carbonate, calcium sulfate particularly calcium phosphate scale of acrylic acid-acrylic acid hydroxypropyl ester copolymer and heavy
Product has good inhibitory action, also there is good dispersion performance to di-iron trioxide, sludge, clay and grease；Can be high pH's
Under the conditions of use；The compatibilities such as acrylic acid-acrylic acid hydroxypropyl ester copolymer and organic phosphonate, BTA are good, to suppressing deposition of zinc salt
Special efficacy is precipitated with calcium phosphate scale.There is good antiscaling dispersion to act under higher temperature and alkaline condition.
6th, white vitriol is good water quality stabilizer in water process, and zinc ion is typical cathode type corrosion inhibiter,
In aqueous, it easily with the OH near cathode-Ionic reaction generates insoluble zinc hydroxide protective film, so as to play inhibition
Effect.
The innovative point of the present invention：Often use methylbenzotriazole to copper as copper inhibitor in the prior art, but must
Sodium hydroxide must be added to increase the solubility of methylbenzotriazole, and zinc sulfate will necessarily be brought by increasing sodium hydroxide
Unstable and unfavorable to scale-inhibiting properties, because sodium hydroxide can bring the rise of medicament alkalescence, and alkalescence gets over the fouling of Gao Shui
Trend can be more serious, can cause zinc sulfate hydrolysis de- steady under alkaline condition, can so seriously affect drug effect, the inhibition of medicament entirety
Property will be influenced by very big.And the addition of methylbenzotriazole, sodium hydroxide also brings along the increase of reagent cost.
The present invention notices the corrosion and scale inhibition performance of medicament single dose in medicament type selecting, and notices medicine after compounding
The performance of the stability and synergistic effect of agent, hydrolysis of polymaleic anhydride, acrylic acid -2- acrylamide-2-methyl propane sulfonics are polynary
Copolymer, carboxylic acid-sulfonic-acrylic ester terpolymer, acrylic acid-acrylic acid hydroxypropyl ester copolymer, medicament are acidity, only
There is poly-epoxy succinic acid for alkalescence, create good sour environment for white vitriol, have to zinc sulfate and stablize well
Effect, and notice the scale inhibition of each medicament, scattered effect tendency, to calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, fluorine
Changing calcium and silicon dirt has good antiscaling dispersion effect, and soda acid matters, that is, ensure that the respective drug effect of medicament plays, and can
With synergistic effect, good corrosion and scale inhibition performance is played.
Compared with the prior art, beneficial effects of the present invention：
1) chelation
The metal ions such as Ca2+, Mg2+ in organic principle and water in medicament form chelate, these chelates are water
Dissolubility.Therefore, more metal ions can be made to stablize the possibility in water, reducing slightly soluble salt generation supersaturated solution.
2) lattice distortion
Organic principle includes 2 aspects with the influence to fouling crystal, first, disturbing its nucleation process；Second, disturb its crystal
Normal growth.Crystal once being formed after, copolymer can be adsorbed in its Active Growth point, so as to influence its normal growth, draw
Play distortion of lattice.
3) peptizaiton
Organic principle in water it is ionizable go out H+, make itself to carry negative electrical charge.When they encounter fouling crystal in water
When, in the case where physically or chemically acting on, particle surface is attracted to, particle surface is carried negative electrical charge, under electrostatic interaction mutually
Repel, effectively inhibit deposition of growing up after particles collision.
3 aspect synergistic effects of the above reach scale inhibition effect.
In addition, the corrosion inhibiting and descaling agent of the present invention is not phosphorous, component safety and environmental protection, simple production process, scale inhibition is efficient, slow
Corrosion can be good, will not cause the body eutrophication because of caused by the discharge of phosphorus, and with compatibility well, can effectively subtract
Few adhesion of the microorganism to equipment, can greatly enhance the corrosion and scale inhibition performance of medicament.
When additive amount is only 20mg/L, for scale inhibition performance up to 99%, rate of corrosion 0.028mm/a, uses rear strip
Light, there is rainbow film.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Component raw material is commercially available industrial goods.
Corrosion-mitigation scale-inhibition agent prescription is shown in Table 1
1 corrosion-mitigation scale-inhibition agent prescription of table
Any embodiment in upper table is prepared as follows：By hydrolysis of polymaleic anhydride, poly-epoxy succinic acid, propylene
Acid -2- acrylamide-2-methyl propane sulfonics multiple copolymer, carboxylic acid-sulfonic-acrylic ester terpolymer, acrylic acid-acrylic
Sour hydroxypropyl ester copolymer, white vitriol and deionization are sequentially added in stirring container, at normal temperatures and pressures, mixing speed 80r/
Min, stirs 90min, up to product.
Corrosion-mitigation scale-inhibition is tested
This experimental water is the supplement water of certain Enterprises cooling water, and water quality is shown in Table 2.
Table 2 tests water quality index
| Project | Assay value |
| pH | 7.86 |
| Turbidity/(NTU) | 4.2 |
| Total alkalinity/(mg/L in terms of CaCO3) | 198 |
| Calcium hardness/(mg/L in terms of CaCO3) | 210 |
| Total hardness/(mg/L in terms of CaCO3) | 225 |
| Chlorion/(mg/L) | 56 |
| Iron ion/(mg/L) | 0.26 |
| Total molten solid/(mg/L) | 602 |
| Electrical conductivity/(μ S/cm) | 836 |
Scale inhibition performance is tested using the measure tosca method of standard GB/T 16632-2008T water treatment agent scale-inhibiting properties
Can, test water temperature 80.Corrosion inhibition test is carried out using 18175 rotary hanging plate methods of standard GB/T/T, tests 80 DEG C of water temperature,
75 revs/min of rotating speed, when operation 72 is small.
The Contrast on effect experimental result of above-mentioned section Example and certain commercially available organophosphor medicament is shown in Table 3.
3 result of the test of table
| Complexing agent | Dosage mg/L | Scale inhibition performance % | Corrosion rate mm/a | Phenomenon |
| Embodiment 1 | 20 | 99.2 | 0.0288 | Surface-brightening, there is rainbow film |
| Embodiment 2 | 20 | 98.8 | 0.0256 | Surface-brightening, there is rainbow film |
| Embodiment 3 | 20 | 98.3 | 0.0247 | Surface-brightening, there is rainbow film |
| Embodiment 4 | 20 | 98.5 | 0.0276 | Surface-brightening, there is rainbow film |
| Comparative example | 20 | 85.3 | 0.0686 | There is corrosion on surface |
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of phosphate-free corrosion inhibition antisludging agent, it is characterised in that be made by following component：Hydrolysis of polymaleic anhydride, poly- epoxy succinic
Acid, acrylic acid -2- acrylamide-2-methyl propane sulfonics multiple copolymer, white vitriol and deionized water.
2. non-phosphate high-effect corrosion inhibiting and descaling agent according to claim 1, it is characterised in that the percentage by weight of each component is：
Hydrolysis of polymaleic anhydride 8-12%, poly-epoxy succinic acid 10-15%, acrylic acid -2- acrylamide-2-methyl propane sulfonics are polynary common
Polymers 15-20%, white vitriol 4-8%, surplus are deionized water.
3. non-phosphate high-effect corrosion inhibiting and descaling agent according to claim 2, it is characterised in that further include carboxylic acid-sulfonic-acrylic
Ester terpolymer 10-15%.
4. non-phosphate high-effect corrosion inhibiting and descaling agent according to claim 3, it is characterised in that further include acrylic acid-acrylic acid hydroxyl
Methacrylate-trimethoxysilyl propylmethacrylate copolymer 8-12%.
5. the preparation method of non-phosphate high-effect corrosion inhibiting and descaling agent according to claim 1, it is characterised in that make as follows
：Each component is weighed by formula, sequentially added in blender, under room temperature, normal pressure, stirred to obtain the final product.
6. the preparation method of non-phosphate high-effect corrosion inhibiting and descaling agent according to claim 5, it is characterised in that the stirring condition
For：70-100r/min, stirs 80-100min.
7. according to the application of claim 1-4 any one of them non-phosphate high-effect corrosion inhibiting and descaling agents, it is characterised in that described without phosphorus
High efficiency corrosion inhibiting scale retardant can be applicable in the following industrial circulating water of condition of water quality：PH7-9.2, basicity 50-800mg/L, hardness
50-800mg/L, electrical conductivity 500-3200 μ S/cm.
8. the application of non-phosphate high-effect corrosion inhibiting and descaling agent according to claim 7, it is characterised in that dosage 20-50mg/
L。
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946964A (en) * | 2018-07-04 | 2018-12-07 | 江苏全泽环保科技有限公司 | A kind of coal gasification phosphorus-free green ash water dispersant |
| CN109012211A (en) * | 2018-10-15 | 2018-12-18 | 河南永业环保工程有限公司 | A kind of reverse osmosis antisludging agent and its preparation process |
| CN109019886A (en) * | 2018-09-27 | 2018-12-18 | 江苏琪朗生物科技有限公司 | Coal gasification buck non-phosphorus scale dispersing agent |
| CN109133387A (en) * | 2018-08-22 | 2019-01-04 | 江苏科利恩净水科技有限公司 | A kind of formula of non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN109264878A (en) * | 2018-11-30 | 2019-01-25 | 攀枝花钢城集团瑞天安全环保有限公司 | Compound phosphate-free corrosion inhibition antisludging agent and preparation method thereof |
| CN109835989A (en) * | 2019-04-02 | 2019-06-04 | 常州工程职业技术学院 | A kind of recirculated cooling water composite scale inhibitor and preparation method thereof |
| CN110028169A (en) * | 2019-04-22 | 2019-07-19 | 苏州安峰环保技术有限公司 | A kind of no-phosphate corrosion scale inhibition one agent and preparation method for processing cycle cooling water |
| CN110606579A (en) * | 2019-09-06 | 2019-12-24 | 西安建筑科技大学 | Corrosion inhibitor for circulating cooling water and preparation method and application thereof |
| CN111003823A (en) * | 2019-12-30 | 2020-04-14 | 山东天庆科技发展有限公司 | Novel efficient non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN111003822A (en) * | 2019-12-28 | 2020-04-14 | 珠海津环环保工程有限公司 | Modified non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN111439853A (en) * | 2020-05-22 | 2020-07-24 | 新疆水处理工程技术研究中心有限公司 | Water treatment agent and preparation method thereof |
| CN111471988A (en) * | 2020-05-22 | 2020-07-31 | 德蓝水技术股份有限公司 | Prefilming agent and preparation method thereof |
| CN111495193A (en) * | 2019-05-16 | 2020-08-07 | 河北权科环保科技有限公司 | Reverse osmosis membrane repairing reagent and preparation method and application thereof |
| CN112079450A (en) * | 2020-09-24 | 2020-12-15 | 德蓝水技术股份有限公司 | Fluorescent non-phosphorus scale inhibitor and preparation method thereof |
| CN112573674A (en) * | 2020-12-15 | 2021-03-30 | 山西晋城无烟煤矿业集团有限责任公司 | Efficient phosphorus-free corrosion and scale inhibitor and preparation method thereof |
| CN114105324A (en) * | 2021-10-08 | 2022-03-01 | 苏州安峰环保技术有限公司 | Phosphorus-free corrosion and scale inhibition integrated agent for treating circulating cooling water and preparation method thereof |
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| CN108946964A (en) * | 2018-07-04 | 2018-12-07 | 江苏全泽环保科技有限公司 | A kind of coal gasification phosphorus-free green ash water dispersant |
| CN109133387A (en) * | 2018-08-22 | 2019-01-04 | 江苏科利恩净水科技有限公司 | A kind of formula of non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN109019886A (en) * | 2018-09-27 | 2018-12-18 | 江苏琪朗生物科技有限公司 | Coal gasification buck non-phosphorus scale dispersing agent |
| CN109012211A (en) * | 2018-10-15 | 2018-12-18 | 河南永业环保工程有限公司 | A kind of reverse osmosis antisludging agent and its preparation process |
| CN109264878A (en) * | 2018-11-30 | 2019-01-25 | 攀枝花钢城集团瑞天安全环保有限公司 | Compound phosphate-free corrosion inhibition antisludging agent and preparation method thereof |
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| CN109835989A (en) * | 2019-04-02 | 2019-06-04 | 常州工程职业技术学院 | A kind of recirculated cooling water composite scale inhibitor and preparation method thereof |
| CN110028169A (en) * | 2019-04-22 | 2019-07-19 | 苏州安峰环保技术有限公司 | A kind of no-phosphate corrosion scale inhibition one agent and preparation method for processing cycle cooling water |
| CN111495193A (en) * | 2019-05-16 | 2020-08-07 | 河北权科环保科技有限公司 | Reverse osmosis membrane repairing reagent and preparation method and application thereof |
| CN110606579B (en) * | 2019-09-06 | 2021-11-30 | 西安建筑科技大学 | Corrosion inhibitor for circulating cooling water and preparation method and application thereof |
| CN110606579A (en) * | 2019-09-06 | 2019-12-24 | 西安建筑科技大学 | Corrosion inhibitor for circulating cooling water and preparation method and application thereof |
| CN111003822A (en) * | 2019-12-28 | 2020-04-14 | 珠海津环环保工程有限公司 | Modified non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN111003823A (en) * | 2019-12-30 | 2020-04-14 | 山东天庆科技发展有限公司 | Novel efficient non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN111439853A (en) * | 2020-05-22 | 2020-07-24 | 新疆水处理工程技术研究中心有限公司 | Water treatment agent and preparation method thereof |
| CN111471988A (en) * | 2020-05-22 | 2020-07-31 | 德蓝水技术股份有限公司 | Prefilming agent and preparation method thereof |
| CN112079450A (en) * | 2020-09-24 | 2020-12-15 | 德蓝水技术股份有限公司 | Fluorescent non-phosphorus scale inhibitor and preparation method thereof |
| CN112573674A (en) * | 2020-12-15 | 2021-03-30 | 山西晋城无烟煤矿业集团有限责任公司 | Efficient phosphorus-free corrosion and scale inhibitor and preparation method thereof |
| CN114105324A (en) * | 2021-10-08 | 2022-03-01 | 苏州安峰环保技术有限公司 | Phosphorus-free corrosion and scale inhibition integrated agent for treating circulating cooling water and preparation method thereof |
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Application publication date: 20180508 |