CN105621637A - Anticorrosion scaling inhibitor and preparation method thereof - Google Patents
Anticorrosion scaling inhibitor and preparation method thereof Download PDFInfo
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- CN105621637A CN105621637A CN201610049345.5A CN201610049345A CN105621637A CN 105621637 A CN105621637 A CN 105621637A CN 201610049345 A CN201610049345 A CN 201610049345A CN 105621637 A CN105621637 A CN 105621637A
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- 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
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- 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
- C02F5/14—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 phosphorus
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
- C23F11/124—Carboxylic acids
- C23F11/126—Aliphatic acids
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/167—Phosphorus-containing compounds
- C23F11/1676—Phosphonic acids
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/173—Macromolecular compounds
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- 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
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses an anticorrosion scaling inhibitor. The anticorrosion scaling inhibitor consists of the following components by molar percent: 10 to 30 percent of hydroxyethylidene diphosphonic acid, 10 to 15 percent of acrylic acid, 5 to 8 percent of sodium polyacrylate, 10 to 15 percent of 2-phosphono butane-1,2,4-tricarboxylic acid, 1 to 2 percent of benzotriazole and 30 to 50 percent of deionized water; and the sum of the percent of all components is 100 percent. The invention also discloses a preparation method of the anticorrosion scaling inhibitor. The hydroxyethylidene diphosphonic acid and the acrylic acid are used as main components of the anticorrosion scaling inhibitor, the sodium polyacrylate and the 2-phosphono butane-1,2,4-tricarboxylic acid having the structural characteristics of phosphoric acid and carboxylic acid are used as important raw materials, and the four raw materials are compounded together to achieve an optimum anticorrosion scaling inhibition effect; and the compound is finally compounded with the benzotriazole, so that the anticorrosion effect of copper is improved. The compounded anticorrosion scaling inhibitor is relatively good in stability, unlikely to degrade and lose efficacy, and capable of effectively preventing the scaling and corrosion of pipelines and devices, thereby achieving effects of protecting the pipelines and the devices and prolonging the service life.
Description
Technical field
The invention belongs to oilfield produced water system environmental technology field, be specifically related to a kind of antiseptic corrosion inhibitor, the preparation method that the invention still further relates to this antiseptic corrosion inhibitor.
Background technology
The development process in oil field can produce large amount of sewage, if it is arbitrarily discharged, not only waste water resource, and environment can be caused severe contamination, it is desirable to mode refilled underground to be circulated use. But these sewage contact with crude oil via underground, often containing hydrogen sulfide, carbon dioxide, oxygen, antibacterial, mechanical admixture etc., thus causing the problem such as pipeline and the corrosion and scaling of equipment, formation blockage, having a strong impact on the normal production in oil field. Therefore, a kind of it is suitably applied in oilfield produced water system, can effectively prevent incrustation scale from producing and then the antiseptic corrosion inhibitor of avoiding equipment corrosion to damage urgently proposes.
Summary of the invention
It is an object of the invention to provide a kind of antiseptic corrosion inhibitor, can effectively prevent incrustation scale from producing and then avoiding equipment corrosion to damage, solve in prior art the sewage of generation in oilfield produced water system and cause pipeline and equipment corrosion, fouling and then affect the problem that oil field normally produces.
The preparation method that it is a further object to provide this antiseptic corrosion inhibitor.
The technical solution adopted in the present invention is: a kind of antiseptic corrosion inhibitor, composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 10%-30%, acrylic acid 10%-15%, sodium polyacrylate 5%-8%, 2-phosphate butane-1,2,4-tricarboxylic acids 10%-15%, BTA 1%-2%, deionized water 30%-50%; Each component percentages sum is 100% above.
The feature of the present invention also resides in:
Preferably, this antiseptic corrosion inhibitor is composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 20%-28%, acrylic acid 12%-15%, sodium polyacrylate 6%-8%, 2-phosphate butane-1,2,4-tricarboxylic acids 11%-15%, BTA 1.5%-2%, deionized water 40%-45%; Each component percentages sum is 100% above.
It is further preferred that this antiseptic corrosion inhibitor is composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 25%, acrylic acid 12%, sodium polyacrylate 6%, 2-phosphate butane-1,2,4-tricarboxylic acids 15%, BTA 2%, deionized water 40%; Each component percentages sum is 100% above.
Another technical scheme of the present invention is:
The preparation method of a kind of above-mentioned antiseptic corrosion inhibitor, specifically comprises the following steps that
Step 1, molar percentage described in claim 1 or 2 or 3 weigh hydroxyl Asia second class diphosphonic acid, acrylic acid, sodium polyacrylate, 2-phosphate butane-1,2,4-tricarboxylic acids, BTA and deionized water respectively;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor it is heated;
Step 5, in stirring downhill reaction still, it is simultaneously added dropwise solution A and solution B and is heated, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carry out sustained response in a kettle.;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
The feature of another technical scheme of the present invention also resides in:
Heating-up temperature in step 4 is 48 �� 2 DEG C.
Step 5 use reactor agitator be stirred.
Temperature when dripping solution A and solution B in step 5 is maintained at 50 �� 2 DEG C.
Solution A and solution B sustained response 2 hours in a kettle. in step 6, temperature is maintained at 50 �� 2 DEG C.
The invention has the beneficial effects as follows: the present invention adopts hydroxyl Asia second class diphosphonic acid and acrylic acid as the main component of antiseptic corrosion inhibitor, 2-phosphate butane-1 with sodium polyacrylate He the architectural characteristic with phosphonic acids and carboxylic acid, 2,4-tricarboxylic acids is important source material, above-mentioned four kinds of raw materials are composite to together, reach anti-corrosion, scale-inhibiting effect more preferably, last and BTA composite, more it is the increase in copper antiseptical effect. This composite antiseptic corrosion inhibitor stability is better, should not decompose, lose efficacy, can effectively prevent fouling and the corrosion of pipeline and equipment, thus the effect reaching to protect pipeline and equipment, increasing the service life.
Accompanying drawing explanation
Fig. 1 is the process chart of preparation method of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
A kind of antiseptic corrosion inhibitor, composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 10%-30%, acrylic acid 10%-15%, sodium polyacrylate 5%-8%, 2-phosphate butane-1,2,4-tricarboxylic acids 10%-15%, BTA 1%-2%, deionized water 30%-50%; Each component percentages sum is 100% above.
Preferably, this antiseptic corrosion inhibitor is composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 20%-28%, acrylic acid 12%-15%, sodium polyacrylate 6%-8%, 2-phosphate butane-1,2,4-tricarboxylic acids 11%-15%, BTA 1.5%-2%, deionized water 40%-45%; Each component percentages sum is 100% above.
It is further preferred that this antiseptic corrosion inhibitor is composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 25%, acrylic acid 12%, sodium polyacrylate 6%, 2-phosphate butane-1,2,4-tricarboxylic acids 15%, BTA 2%, deionized water 40%; Each component percentages sum is 100% above.
The preparation method of a kind of above-mentioned antiseptic corrosion inhibitor, specifically comprises the following steps that
Step 1, weigh hydroxyl Asia second class diphosphonic acid respectively according to above-mentioned molar percentage, acrylic acid, sodium polyacrylate, 2-phosphate butane-1,2,4-tricarboxylic acids, BTA and deionized water;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, joining in reactor by remaining a deionized water, heating-up temperature is 48 �� 2 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 50 �� 2 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 50 �� 2 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
In the present invention, each component effect is as follows:
Hydroxyl Asia second class diphosphonic acid (HEDP): organic phosphine acids anti-incrustation corrosion inhibitor, can form stable complex with the many kinds of metal ions such as ferrum, copper, zinc, it is possible to dissolve the oxide of metal surface.
Acrylic acid: the crystallite of the salt such as calcium carbonate, calcium sulfate or silt can be scattered in water and not precipitate, reach scale inhibition purpose.
Sodium polyacrylate (PAAS): can play dispersing and antisludging effect, can run non-scaling in the basic conditions.
2-phosphate butane-1,2,4-tricarboxylic acids: possess good scale inhibition and corrosion inhibition, and its at high temperature scale-inhibiting properties is still fine, it is possible to increase the dissolubility of zinc.
BTA: the antirust agent of metal, especially has excellent effect to copper anticorrosion.
Deionized water: dissolution.
Embodiment 1:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 10%, acrylic acid 15%, sodium polyacrylate 8% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 15%, BTA 2%, deionized water 50%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 48 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 52 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 50 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 2:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 30%, acrylic acid 10%, sodium polyacrylate 5% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 15%, BTA 2%, deionized water 38%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 46 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 50 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 52 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 3:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 30%, acrylic acid 15%, sodium polyacrylate 8% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 15%, BTA 2%, deionized water 30%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 50 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 48 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 48 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 4:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 30%, acrylic acid 15%, sodium polyacrylate 8% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 12%, BTA 1%, deionized water 34%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 50 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 48 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 48 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 5:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 30%, acrylic acid 15%, sodium polyacrylate 8% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 10%, BTA 1.5%, deionized water 35.5%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 48 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 50 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 50 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 6:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 28%, acrylic acid 13%, sodium polyacrylate 6.2% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 11%, BTA 1.8%, deionized water 40%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 48 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 50 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 50 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 7:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 20%, acrylic acid 15%, sodium polyacrylate 8% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 13.5%, BTA 1.5%, deionized water 42%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 48 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 50 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 50 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 8:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 20%, acrylic acid 12%, sodium polyacrylate 8% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 13.5%, BTA 1.5%, deionized water 45%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 48 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 50 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 50 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Embodiment 9:
Step 1, weigh hydroxyl Asia second class diphosphonic acid 25%, acrylic acid 12%, sodium polyacrylate 6% respectively according to molar percentage, 2-phosphate butane-1,2,4-tricarboxylic acids 15%, BTA 2%, deionized water 40%, above each component percentages sum is 100%;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor, be heated to 48 DEG C;
Step 5, use reactor agitator are simultaneously added dropwise solution A and solution B in stirring downhill reaction still and are heated, and temperature is maintained at 50 DEG C, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carrying out sustained response in a kettle., the response time is 2 hours, and temperature is maintained at 50 DEG C;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
Proportioning in embodiment 9 is the optimal proportion of the present invention; adopt this proportioning; the antiseptic effect making composite antiseptic corrosion inhibitor is fairly obvious; make this antiseptic corrosion inhibitor stability better; it is not easily decomposed, lost efficacy; can the fouling of effectively anti-locking system and corrosion, thus the effect reaching protection equipment, increasing the service life.
Claims (8)
1. an antiseptic corrosion inhibitor, it is characterized in that, composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 10%-30%, acrylic acid 10%-15%, sodium polyacrylate 5%-8%, 2-phosphate butane-1,2,4-tricarboxylic acids 10%-15%, BTA 1%-2%, deionized water 30%-50%; Each component percentages sum is 100% above.
2. a kind of antiseptic corrosion inhibitor according to claim 1, it is characterized in that, composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 20%-28%, acrylic acid 12%-15%, sodium polyacrylate 6%-8%, 2-phosphate butane-1,2,4-tricarboxylic acids 11%-15%, BTA 1.5%-2%, deionized water 40%-45%; Each component percentages sum is 100% above.
3. a kind of antiseptic corrosion inhibitor according to claim 2, it is characterized in that, composed of the following components according to molar percentage: hydroxyl Asia second class diphosphonic acid 25%, acrylic acid 12%, sodium polyacrylate 6%, 2-phosphate butane-1,2,4-tricarboxylic acids 15%, BTA 2%, deionized water 40%; Each component percentages sum is 100% above.
4. the preparation method of antiseptic corrosion inhibitor as described in claim 1-3, it is characterised in that specifically comprise the following steps that
Step 1, molar percentage described in claim 1 or 2 or 3 weigh hydroxyl Asia second class diphosphonic acid, acrylic acid, sodium polyacrylate, 2-phosphate butane-1,2,4-tricarboxylic acids, BTA and deionized water respectively;
Step 2, deionized water is divided into four parts according to the ratio of 1:1:1:1; After sodium polyacrylate is used a deionized water dissolving uniformly, add acrylic acid, hydroxyl Asia second class diphosphonic acid, 2-phosphate butane-1,2,4-tricarboxylic acids, finally add a deionized water dissolving wiring solution-forming A;
Step 3, by BTA with a deionized water dissolving wiring solution-forming B;
Step 4, remaining a deionized water is joined in reactor it is heated;
Step 5, in stirring downhill reaction still, it is simultaneously added dropwise solution A and solution B and is heated, till solution A and solution B all drip off;
After step 6, solution A and solution B dropwise, carry out sustained response in a kettle.;
Step 7, stopping heating, be cooled to room temperature, obtain finished product.
5. the preparation method of antiseptic corrosion inhibitor according to claim 4, it is characterised in that the heating-up temperature in described step 4 is 48 �� 2 DEG C.
6. the preparation method of antiseptic corrosion inhibitor according to claim 4, it is characterised in that use reactor agitator to be stirred in described step 5.
7. the preparation method of antiseptic corrosion inhibitor according to claim 4, it is characterised in that temperature when dripping solution A and solution B in described step 5 is maintained at 50 �� 2 DEG C.
8. the preparation method of antiseptic corrosion inhibitor according to claim 4, it is characterised in that solution A and solution B sustained response 2 hours in a kettle. in described step 6, temperature is maintained at 50 �� 2 DEG C.
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