CN113264598A - Scale inhibition agent for Yinba method blast furnace slag treatment system and preparation method and application thereof - Google Patents
Scale inhibition agent for Yinba method blast furnace slag treatment system and preparation method and application thereof Download PDFInfo
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- CN113264598A CN113264598A CN202110640820.7A CN202110640820A CN113264598A CN 113264598 A CN113264598 A CN 113264598A CN 202110640820 A CN202110640820 A CN 202110640820A CN 113264598 A CN113264598 A CN 113264598A
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- 239000002893 slag Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 title abstract description 13
- 239000002455 scale inhibitor Substances 0.000 claims abstract description 57
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 150000007524 organic acids Chemical class 0.000 claims abstract description 18
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 15
- 239000010452 phosphate Substances 0.000 claims abstract description 15
- 239000003112 inhibitor Substances 0.000 claims abstract description 10
- 239000002332 oil field water Substances 0.000 claims abstract description 7
- 239000003814 drug Substances 0.000 claims abstract description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 30
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 claims description 14
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 claims description 14
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 claims description 14
- 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 11
- -1 methylene phosphonic acid Chemical compound 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 3
- 239000001506 calcium phosphate Substances 0.000 abstract description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract description 3
- 235000011010 calcium phosphates Nutrition 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 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 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000012071 phase Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001232253 Xanthisma spinulosum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011361 granulated particle Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 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
- C02F5/14—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
-
- 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
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention belongs to the technical field of high-temperature water treatment in the ferrous metallurgy industry, and relates to a scale inhibition agent for an Inba process blast furnace slag treatment system, and a preparation method and application thereof. The scale inhibition medicament slowly decomposes the part which is already scaled and blocked in the system by adding organic acid; by adding the organic phosphate, the scale inhibitor has good scale inhibition and dispersion performance for calcium carbonate, calcium phosphate and calcium sulfate, and can effectively inhibit the formation of silica scale; the thiourea and the corrosion inhibitor are added, so that the scale inhibitor does not corrode equipment while dispersing the structure due to the good corrosion inhibition effect of the thiourea and the corrosion inhibitor. The scale inhibitor provided by the invention has the advantages of good corrosion inhibition performance, high temperature resistance, good stability and the like, no waste gas, waste water and waste residue are discharged in the whole production process, and the scale inhibitor has the advantages of small dosage, low cost, good effect, good economic benefit and wide social benefit when used for treating oil field water.
Description
Technical Field
The invention belongs to the technical field of high-temperature water treatment in the ferrous metallurgy industry, relates to a scale inhibition medicament, and particularly relates to a scale inhibition medicament for an Ineba blast furnace slag treatment system, and a preparation method and application thereof.
Background
The ieba method blast furnace slag treatment system has compact arrangement and small occupied area due to the drum dehydration mode, and can realize mechanization and automation of the whole process; and the quality of the granulated slag is good, the slag flushing water is in closed circulation without discharge, the environment protection is good, and the like, and the method is widely applied to newly-built large and medium blast furnaces.
However, when the slag flushing mechanization and automation of the blast furnace slag processing system by the bar method are realized, slag wool and amorphous granulated particles generated in the slag granulating process can obviously scale on slag-water separation equipment, pipelines and cooling tower supports along with the circulation of the slag flushing process, so that the pipelines are blocked in the later operation process, and the slag cannot be normally granulated by water quenching. In severe cases, blast furnace slag is directly discharged into the dry slag pit, causing secondary environmental pollution. At present, for scaling of an iron works blast furnace slag treatment system by a Babbitt process, a regular manual cleaning mode is generally adopted by iron works, and during manual cleaning, dry slag must be directly discharged in order to not influence normal production, which inevitably causes environmental pollution.
At present, no scale inhibition agent for a slag flushing system of the Yinba slag flushing system exists in the market, and the high-temperature slag is granulated and cooled by circulating water at about 1000 ℃ in the slag flushing process, so that the agent has certain requirements on the temperature resistance of the agent while inhibiting scale. In order to ensure the stable operation of a field slag flushing system and avoid the increase of the operation cost of iron and steel enterprises caused by blast furnace damping down due to the fault of the slag flushing system, the research and development of a scale inhibitor for a slag treatment system of a Gauss blast furnace by a Baba method are urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a scale inhibitor for an Inba process blast furnace slag treatment system, a preparation method and application thereof.
The purpose of the invention is realized by the following technical scheme:
on one hand, the invention provides a scale inhibition medicament for an Ineba method blast furnace slag treatment system, which comprises the following raw materials in parts by weight: 10-25 parts of organic acid, 15-25 parts of organic phosphate, 3-7 parts of thiourea, 0.5-1.5 parts of corrosion inhibitor and the balance of water.
Further, the organic acid is selected from at least one of sulfamic acid and citric acid.
Further, when the organic acid is a mixed acid of sulfamic acid and citric acid, the weight ratio of the sulfamic acid to the citric acid is (6-9): (1-3).
Further, the organic phosphate is selected from at least one of polyamino polyether methylene phosphonic acid and diethylenetriamine pentamethylene phosphonic acid.
Further, when the organic phosphate is a mixed salt of polyamino polyether methylene phosphonic acid and diethylenetriamine pentamethylene phosphonic acid, the weight ratio of the two is (2-5): (3-7).
Further, the corrosion inhibitor is water-soluble imidazoline.
Further, the concentration of the scale inhibitor is 100-300 ppm.
On the other hand, the invention provides a preparation method of a scale inhibitor for an Ineba method blast furnace slag treatment system, which specifically comprises the following steps:
adding 3-7 parts of thiourea into the balance of water, and heating to 50 ℃ until the thiourea is completely dissolved to form a solution A;
selecting 10-25 parts of organic acid, adding the organic acid into the solution A, and stirring at a constant temperature for 30min to form a solution B, wherein the organic acid is selected from at least one of polyamino polyether methylene Phosphonic Acid (PAPEMP) and diethylenetriamine pentamethylene phosphonic acid (DTPMPA);
step three, adding 15-25 parts of organic phosphate into the solution B, and stirring at constant temperature for 30-60 min to form a solution C, wherein the organic phosphate is at least one selected from sulfamic acid and citric acid;
and step four, selecting 0.5-1.5 parts of water-soluble imidazoline, adding the water-soluble imidazoline into the solution C, and stirring at constant temperature until the water-soluble imidazoline is completely dissolved to form a final scale inhibitor.
In addition, the invention also provides application of the scale inhibitor prepared by the preparation method in oil field water treatment, and when the scale inhibitor is applied, the addition amount of the scale inhibitor is 100-300 ppm.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: the traditional water treatment agent mostly concentrates the use temperature between 50 ℃ and 90 ℃, but the scale inhibition agent provided by the invention greatly expands and improves the temperature use range of the scale inhibition agent because the high-temperature slag can be granulated and cooled by circulating water at about 1000 ℃ in the slag flushing process, and the scale inhibition agent is added into the circulating water and is also directly contacted with the high-temperature slag; the scale inhibitor provided by the invention is not limited to be used under the working condition of a single phase (liquid phase), and can also be applied to the interface environment with three phases coexisting, such as a solid phase (slag), a liquid phase (circulating slag flushing water), a gas phase (acid gas and water vapor in blast furnace slag) and the like in the slag flushing circulating water slag flushing process.
The scale inhibitor provided by the invention slowly decomposes the scale and blocked parts in the system by adding organic acid; by adding the organic phosphate, the scale inhibitor has good scale inhibition and dispersion performance for calcium carbonate, calcium phosphate and calcium sulfate, and can effectively inhibit the formation of silica scale; the thiourea and the corrosion inhibitor are added, so that the scale inhibitor does not corrode equipment while dispersing the structure due to the good corrosion inhibition effect of the thiourea and the corrosion inhibitor.
Therefore, the scale inhibitor provided by the invention has the advantages of good corrosion inhibition performance, high temperature resistance, good stability and the like, no waste gas, waste water and waste residue are discharged in the whole production process, and the scale inhibitor has the advantages of small dosage, low cost, good effect, good economic benefit and wide social benefit when used for treating oil field water.
Detailed Description
The exemplary embodiments will be described herein in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of products or methods consistent with certain aspects of the invention, as detailed in the following claims.
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the following examples.
Example 1
The embodiment provides a scale inhibitor for an Ineba method blast furnace slag treatment system, belongs to an environment-friendly low-phosphorus composite scale inhibitor, and comprises the following raw materials in parts by weight: 7 parts of sulfamic acid, 3 parts of citric acid, 5 parts of thiourea, 25 parts of polyamino polyether methylene Phosphonic Acid (PAPEMP), 0.5 part of water-soluble imidazoline and the balance of water.
After the scale inhibitor is continuously added into a slag flushing system of a blast furnace by a method of Yinba in a certain iron works, the concentration of the scale inhibitor in circulating water is kept within 100-300 ppm, tests show that the scaling amount of a strand filter screen before adding the scale inhibitor reaches 10 cubic centimeters per month, and the scaling amount after adding the scale inhibitor is less than 6 cubic centimeters per month.
Example 2
The embodiment provides a scale inhibitor for an Ineba method blast furnace slag treatment system, belongs to an environment-friendly low-phosphorus composite scale inhibitor, and comprises the following raw materials in parts by weight: 12 parts of sulfamic acid, 2 parts of citric acid, 7 parts of thiourea, 15 parts of diethylenetriamine pentamethylenephosphonic acid (DTPMPA), 1.5 parts of water-soluble imidazoline and the balance of water.
After the scale inhibitor is continuously added into a slag flushing system of a blast furnace of an iron plant by a Yinba method, the concentration of the scale inhibitor in circulating water is kept within 100-300 ppm, a strand filter screen before adding the scale inhibitor needs manual polishing for scale formation every day, and the strand filter screen is polished once more than 15 days after adding the scale inhibitor.
Example 3
The embodiment provides a scale inhibitor for an Ineba method blast furnace slag treatment system, belongs to an environment-friendly low-phosphorus composite scale inhibitor, and comprises the following raw materials in parts by weight: 18 parts of sulfamic acid, 3 parts of thiourea, 10 parts of polyamino polyether methylene Phosphonic Acid (PAPEMP), 15 parts of diethylenetriamine pentamethylene phosphonic acid (DTPMPA), 1.0 part of water-soluble imidazoline and the balance of water.
After the scale inhibitor is continuously added into a slag flushing system of a blast furnace by a pinch method in a certain iron works, the concentration of the agent in circulating water is kept within 100ppm, the running period of a slag flushing pipeline by pinch is 3 months before adding the agent, the pipeline is not easy to block after adding the agent, and the running period is prolonged to more than 8 months.
In conclusion, the scale inhibitor provided by the invention has the advantages of good corrosion inhibition performance, high temperature resistance, good stability and the like, no waste gas, waste water and waste residue are discharged in the whole production process, and the scale inhibitor has the advantages of small dosage, low cost, good effect, good economic benefit and wide social benefit when used for treating oil field water.
Example 4
On the basis of the embodiment, the invention also provides a preparation method of the scale inhibitor for the slag treatment system of the Enabar blast furnace, which specifically comprises the following steps:
adding 3-7 parts of thiourea into the balance of water, and heating to 50 ℃ until the thiourea is completely dissolved to form a solution A;
selecting 10-25 parts of organic acid, adding the organic acid into the solution A, and stirring at a constant temperature for 30min to form a solution B, wherein the organic acid is selected from at least one of polyamino polyether methylene Phosphonic Acid (PAPEMP) and diethylenetriamine pentamethylene phosphonic acid (DTPMPA);
step three, adding 15-25 parts of organic phosphate into the solution B, and stirring at constant temperature for 30-60 min to form a solution C, wherein the organic phosphate is at least one selected from sulfamic acid and citric acid;
and step four, selecting 0.5-1.5 parts of water-soluble imidazoline, adding the water-soluble imidazoline into the solution C, and stirring at constant temperature until the water-soluble imidazoline is completely dissolved to form a final scale inhibitor.
The scale inhibitor prepared by the method slowly decomposes the scale and blocked parts in the system by adding organic acid; by adding the organic phosphate, the scale inhibitor has good scale inhibition and dispersion performance for calcium carbonate, calcium phosphate and calcium sulfate, and can effectively inhibit the formation of silica scale; the thiourea and the corrosion inhibitor are added, so that the scale inhibitor does not corrode equipment while dispersing the structure due to the good corrosion inhibition effect of the thiourea and the corrosion inhibitor.
In addition, the invention also provides the application of the scale inhibitor in oil field water treatment, and when the scale inhibitor is applied to a slag treatment system of a Gauss-process blast furnace, the addition amount of the scale inhibitor is 100-300 ppm; the scale inhibitor is not limited to be used under the condition of single phase (liquid phase), and can also be applied to the interface environment with three phases of solid phase (slag) -liquid phase (circulating slag flushing water) -gas phase (acid gas and water vapor in blast furnace slag) coexisting in the slag flushing circulating water slag flushing process, and the scale inhibitor is added into the circulating water, so that the high-temperature slag in the slag flushing process can be granulated and cooled by the circulating water at about 1000 ℃, and the purposes of scale inhibition and dispersion are achieved.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
It is to be understood that the present invention is not limited to the above, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. The scale inhibition medicament for the slag treatment system of the Yangba blast furnace is characterized by comprising the following raw materials in parts by weight: 10-25 parts of organic acid, 15-25 parts of organic phosphate, 3-7 parts of thiourea, 0.5-1.5 parts of corrosion inhibitor and the balance of water.
2. The Enaba blast furnace slag treatment system scale inhibitor according to claim 1, wherein the organic acid is at least one selected from the group consisting of sulfamic acid and citric acid.
3. The Enaba process blast furnace slag treatment system scale inhibitor according to claim 2, wherein when the organic acid is a mixed acid of sulfamic acid and citric acid, the weight ratio of the two is (6-9): (1-3).
4. The Enaba blast furnace slag treatment system scale inhibitor according to claim 1, wherein the organic phosphate is at least one selected from polyamino polyether methylene phosphonic acid and diethylenetriamine pentamethylene phosphonic acid.
5. The Enaba-process blast furnace slag treatment system scale inhibitor according to claim 4, wherein when the organic phosphate is a mixed salt of polyaminopolyether methylene phosphonic acid and diethylenetriamine pentamethylene phosphonic acid, the weight ratio of the two is (2-5): (3-7).
6. The Enaba process blast furnace slag treatment system scale inhibitor according to claim 1, wherein the corrosion inhibitor is water-soluble imidazoline.
7. The Ineba blast furnace slag treatment system scale inhibitor according to claim 1, wherein the concentration of the scale inhibitor is 100 to 300 ppm.
8. A preparation method of a scale inhibitor for an Ineba blast furnace slag treatment system is characterized by comprising the following steps:
adding 3-7 parts of thiourea into the balance of water, and heating to 50 ℃ until the thiourea is completely dissolved to form a solution A;
selecting 10-25 parts of organic acid, adding the organic acid into the solution A, and stirring at a constant temperature for 30min to form a solution B, wherein the organic acid is selected from at least one of polyamino polyether methylene Phosphonic Acid (PAPEMP) and diethylenetriamine pentamethylene phosphonic acid (DTPMPA);
step three, adding 15-25 parts of organic phosphate into the solution B, and stirring at constant temperature for 30-60 min to form a solution C, wherein the organic phosphate is at least one selected from sulfamic acid and citric acid;
and step four, selecting 0.5-1.5 parts of water-soluble imidazoline, adding the water-soluble imidazoline into the solution C, and stirring at constant temperature until the water-soluble imidazoline is completely dissolved to form a final scale inhibitor.
9. Use of the scale inhibitor according to any one of claims 1 to 7 in oil field water treatment.
10. The application of the scale inhibitor according to claim 9 in oil field water treatment, wherein the addition amount of the scale inhibitor is 100-300 ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110640820.7A CN113264598A (en) | 2021-06-09 | 2021-06-09 | Scale inhibition agent for Yinba method blast furnace slag treatment system and preparation method and application thereof |
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| CN202110640820.7A CN113264598A (en) | 2021-06-09 | 2021-06-09 | Scale inhibition agent for Yinba method blast furnace slag treatment system and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257841A (en) * | 1998-12-23 | 2000-06-28 | 王福霖 | Corrosion-retarding scale inhibitor for boiler |
| CN101768529A (en) * | 2010-01-25 | 2010-07-07 | 蓝星环境工程有限公司 | Broad-spectrum and efficient cleaning agent for cooling system |
| CN103113584A (en) * | 2013-02-28 | 2013-05-22 | 赵金姝 | Three compound combination flooding adopted environment-friendly preparation method of polyaspartic acid for oil field |
| US20140319064A1 (en) * | 2013-04-27 | 2014-10-30 | Tongji University | Ethylenediamine core, octamethylenephosphonic acid terminated, PAMAM dendrimer and its use as antiscalant |
| CN105712504A (en) * | 2014-12-02 | 2016-06-29 | 中国石油天然气股份有限公司 | Corrosion and scale inhibitor used for acidic high temperature gas field water and preparation method and application thereof |
-
2021
- 2021-06-09 CN CN202110640820.7A patent/CN113264598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257841A (en) * | 1998-12-23 | 2000-06-28 | 王福霖 | Corrosion-retarding scale inhibitor for boiler |
| CN101768529A (en) * | 2010-01-25 | 2010-07-07 | 蓝星环境工程有限公司 | Broad-spectrum and efficient cleaning agent for cooling system |
| CN103113584A (en) * | 2013-02-28 | 2013-05-22 | 赵金姝 | Three compound combination flooding adopted environment-friendly preparation method of polyaspartic acid for oil field |
| US20140319064A1 (en) * | 2013-04-27 | 2014-10-30 | Tongji University | Ethylenediamine core, octamethylenephosphonic acid terminated, PAMAM dendrimer and its use as antiscalant |
| CN105712504A (en) * | 2014-12-02 | 2016-06-29 | 中国石油天然气股份有限公司 | Corrosion and scale inhibitor used for acidic high temperature gas field water and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 袁红萍: "《纺织精细化学品》", 31 May 2012, 东华大学出版社, pages: 168 * |
| 詹益兴: "《绿色化学化工》", 31 January 2001, 湖南大学出版社, pages: 329 * |
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