RU2115631C1 - Composition for inhibiting salt formation and corrosion - Google Patents
Composition for inhibiting salt formation and corrosion Download PDFInfo
- Publication number
- RU2115631C1 RU2115631C1 RU97113167A RU97113167A RU2115631C1 RU 2115631 C1 RU2115631 C1 RU 2115631C1 RU 97113167 A RU97113167 A RU 97113167A RU 97113167 A RU97113167 A RU 97113167A RU 2115631 C1 RU2115631 C1 RU 2115631C1
- Authority
- RU
- Russia
- Prior art keywords
- composition
- corrosion
- salt formation
- water
- inhibiting salt
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 title claims abstract description 6
- 230000007797 corrosion Effects 0.000 title claims abstract description 5
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 150000003839 salts Chemical class 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 4
- 239000000654 additive Substances 0.000 claims 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011787 zinc oxide Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 2
- 239000003112 inhibitor Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- JHTQHOGTBDMULK-UHFFFAOYSA-N CC(C)C1NC1 Chemical compound CC(C)C1NC1 JHTQHOGTBDMULK-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 235000011167 hydrochloric acid Nutrition 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
Изобретение относится к составу для ингибирования солеотложений и коррозии на основе комплексонов (полидентатных лигандов), а именно аминоалкилфосфоновых комплексонов, и может быть использовано в системах теплоснабжения. The invention relates to a composition for inhibiting scaling and corrosion based on complexones (polydentate ligands), namely aminoalkylphosphonic complexones, and can be used in heat supply systems.
Известны ингибиторы на основе нитрилотри(метилфосфоновой) кислоты (НТФ) формулы
в смеси с малеиновой, винилсульфоновой, винилфосфоновой, метилиминодиметилфосфоновой, азотной, соляной кислотами и другими компонентами (патенты США N 3699048, N 3899228; авт. св. СССР N 1414794, C 02 F 5/10, 1988; N 1224277, C 02 F 5/00, 1986; N 1116023, C 02 F 5/00, 1984).Known inhibitors based on nitrilotri (methylphosphonic) acid (NTP) of the formula
mixed with maleic, vinyl sulfonic, vinylphosphonic, methyliminodimethylphosphonic, nitric, hydrochloric acids and other components (US Pat. N 3,699,048, N 3,899,228; ed. St. USSR N 1,414,794, C 02
Известен ингибитор на основе НТФ, ее щелочной соли и полиэлектролита (патент США N 3549538). Known inhibitor based on NTF, its alkaline salt and polyelectrolyte (US patent N 3549538).
Наиболее близким по составу может быть композиция на основе нитрилотриметилфосфата цинка, содержащая нитрит натрия и галогенид щелочного металла, используемая концентрации 10-200 мг/л (авт.св. СССР N 1490099, C 02 F 5/14, 1989). The closest in composition can be a composition based on zinc nitrilotrimethylphosphate containing sodium nitrite and an alkali metal halide, the concentration used is 10-200 mg / l (ed. St. USSR N 1490099, C 02 F 5/14, 1989).
Техническим результатом изобретения является расширение арсенала ингибиторов солеотложений. The technical result of the invention is the expansion of the arsenal of scale inhibitors.
Результат достигается композицией состава, мас%:
Нитрилотри(метилфосфоновая) кислота (НТФ) - 18-22
Окись цинка (ZnO) - 3,2-4,0
Едкий натр (NaOH) - 5,5-6,5
Вода - Остальное
Изобретательский уровень определяется соотношением компонентов, позволяющим получить устойчивую композицию, эффективно работающую при достаточно низких концентрациях.The result is achieved by the composition, wt%:
Nitrilotri (methylphosphonic) acid (NTP) - 18-22
Zinc Oxide (ZnO) - 3.2-4.0
Caustic Sodium (NaOH) - 5.5-6.5
Water - Else
The inventive step is determined by the ratio of the components, which allows to obtain a stable composition that works effectively at sufficiently low concentrations.
Состав готовят смешением компонентов, например добавлением к водному раствору едкого натра суспензии окиси цинка и раствора НТФ. Полученный раствор имеет pH 7,0 - 7,5 и d 1,2 - 1,25 г/см3. Состав дозируют в ингибируемую воду в концентрации 3 - 10 мг/л в пересчете на НТФ.The composition is prepared by mixing the components, for example, adding a suspension of zinc oxide and a solution of NTP to an aqueous solution of caustic soda. The resulting solution has a pH of 7.0 - 7.5 and d 1.2 - 1.25 g / cm 3 . The composition is dosed into inhibited water at a concentration of 3-10 mg / l in terms of NTP.
Эффективность ингибирования солеотложений определяли двумя методами:
а) по увеличению массы стальных пластин при t 87-92oC, при их постоянном вращении в течение 5 ч в воде с жесткостью 7,5 - 9,5 мг-экв/л, щелочностью 3,8 - 4,0 мг-экв./л, содержанием хлоридов 150-190 мг/л, и pH 7,5 - 9,5 без предварительной деаэрации воды;
б) по остаточной общей жесткости воды с учетом коэффициентов упаривания при тех же условиях.The effectiveness of inhibition of scaling was determined by two methods:
a) to increase the mass of steel plates at t 87-92 o C, with their constant rotation for 5 hours in water with a hardness of 7.5 - 9.5 mEq / l, alkalinity of 3.8 - 4.0 mg- equiv. / l, chloride content of 150-190 mg / l, and pH 7.5 - 9.5 without preliminary deaeration of water;
b) the residual total hardness of the water, taking into account evaporation coefficients under the same conditions.
Эффективность ингибирования коррозии определяли по убыли массы стальных пластин при аналогичных условиях. The effectiveness of corrosion inhibition was determined by the loss of mass of steel plates under similar conditions.
В таблице приведены данные для ингибитора состава, мас%: НТФ 18,0; ZnO 3,2; NaOH 5,5; остальное вода; при различной жесткости воды в мг- экв/л от 7,5 до 8,5 и от 8,5 до 9,5. The table shows the data for the inhibitor composition, wt%: NTP 18.0; ZnO 3.2; NaOH 5.5; the rest is water; with different water hardness in mEq / l from 7.5 to 8.5 and from 8.5 to 9.5.
В таблице приведены также данные для ингибитора - НТФ. The table also shows the data for the inhibitor - NTF.
Как видно из таблицы, предлагаемый состав является эффективным ингибитором солеотложений в достаточно низких концентрациях (≈5 мг/л) и одновременно проявляет антикоррозионный эффект, что выгодно отличает его от НТФ. As can be seen from the table, the proposed composition is an effective inhibitor of scaling in fairly low concentrations (≈5 mg / l) and at the same time exhibits an anti-corrosion effect, which distinguishes it from NTF.
Предлагаемый ингибитор технологически доступен. The proposed inhibitor is technologically available.
Claims (1)
НТФ - 18 - 22
ZnO - 3,2 - 4,0
NaOH - 5,5 - 6,5
Вода - ОстальноейComposition for inhibiting scaling and corrosion based on nitrilotri (methylphosphonic) acid (NTF) and additives, characterized in that it contains components in the following ratio, wt.%:
NTF - 18 - 22
ZnO - 3.2 - 4.0
NaOH - 5.5 - 6.5
Water - The rest
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU97113167A RU2115631C1 (en) | 1997-07-30 | 1997-07-30 | Composition for inhibiting salt formation and corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU97113167A RU2115631C1 (en) | 1997-07-30 | 1997-07-30 | Composition for inhibiting salt formation and corrosion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2115631C1 true RU2115631C1 (en) | 1998-07-20 |
| RU97113167A RU97113167A (en) | 1998-11-20 |
Family
ID=20195884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU97113167A RU2115631C1 (en) | 1997-07-30 | 1997-07-30 | Composition for inhibiting salt formation and corrosion |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2115631C1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2177458C1 (en) * | 2000-05-12 | 2001-12-27 | Открытое Акционерное Общество "Челябоблкоммунэнерго" | Composition for removing high-temperature mineral salt deposits from thermal power equipment |
| RU2205157C2 (en) * | 2001-07-23 | 2003-05-27 | Общество с ограниченной ответственностью "Экоэнерго" | Salt deposition and corrosion inhibiting composition and a method of preparation thereof |
| RU2528540C1 (en) * | 2013-03-19 | 2014-09-20 | Фёдор Фёдорович Чаусов | Corrosion and(or) scale inhibitor |
| RU2528417C1 (en) * | 2013-03-19 | 2014-09-20 | Фёдор Фёдорович Чаусов | Crystalline form of tetrasodium nitrilotrismethylene phosphonate zincate and method for production thereof |
| RU2598724C1 (en) * | 2015-05-19 | 2016-09-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Удмуртский государственный университет" (ФГБОУ ВО "УдГУ", УдГУ, ФГБОУ ВО "Удмуртский государственный университет") | Corrosion inhibitor for steel equipment in aqueous media and method for production thereof |
| RU2693243C1 (en) * | 2019-02-07 | 2019-07-01 | Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" | Corrosion and scale-formation inhibitor for water treatment of heating systems and other heating systems |
| RU2732501C2 (en) * | 2016-01-18 | 2020-09-18 | Университа Дельи Студи Ди Рома "Ла Сапиенца" | Composition for applying a coating with antimicrobial and anti-salt activity and a method for preparing it |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1490099A1 (en) * | 1986-11-13 | 1989-06-30 | Уральское Производственно-Техническое Предприятие "Уралэнергочермет" | )method of stabilizing treating of water |
-
1997
- 1997-07-30 RU RU97113167A patent/RU2115631C1/en active IP Right Revival
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1490099A1 (en) * | 1986-11-13 | 1989-06-30 | Уральское Производственно-Техническое Предприятие "Уралэнергочермет" | )method of stabilizing treating of water |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2177458C1 (en) * | 2000-05-12 | 2001-12-27 | Открытое Акционерное Общество "Челябоблкоммунэнерго" | Composition for removing high-temperature mineral salt deposits from thermal power equipment |
| RU2205157C2 (en) * | 2001-07-23 | 2003-05-27 | Общество с ограниченной ответственностью "Экоэнерго" | Salt deposition and corrosion inhibiting composition and a method of preparation thereof |
| RU2528540C1 (en) * | 2013-03-19 | 2014-09-20 | Фёдор Фёдорович Чаусов | Corrosion and(or) scale inhibitor |
| RU2528417C1 (en) * | 2013-03-19 | 2014-09-20 | Фёдор Фёдорович Чаусов | Crystalline form of tetrasodium nitrilotrismethylene phosphonate zincate and method for production thereof |
| RU2598724C1 (en) * | 2015-05-19 | 2016-09-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Удмуртский государственный университет" (ФГБОУ ВО "УдГУ", УдГУ, ФГБОУ ВО "Удмуртский государственный университет") | Corrosion inhibitor for steel equipment in aqueous media and method for production thereof |
| RU2732501C2 (en) * | 2016-01-18 | 2020-09-18 | Университа Дельи Студи Ди Рома "Ла Сапиенца" | Composition for applying a coating with antimicrobial and anti-salt activity and a method for preparing it |
| RU2693243C1 (en) * | 2019-02-07 | 2019-07-01 | Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" | Corrosion and scale-formation inhibitor for water treatment of heating systems and other heating systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0122013B1 (en) | Polymeric additives for water | |
| CA1039613A (en) | Method and composition of inhibiting scale | |
| CA2765905C (en) | Composition and method for controlling copper discharge and erosion of copper alloys in industrial systems | |
| US4617129A (en) | Scale inhibition | |
| EP0245557B1 (en) | Stabilized antifreeze/coolant composition containing borate and silicate corrosion inhibitors | |
| AU4972700A (en) | Method and composition for inhibiting corrosion in aqueous systems | |
| JPH07173359A (en) | Deicing fluid | |
| JPH05214567A (en) | Anticorrosive | |
| RU2115631C1 (en) | Composition for inhibiting salt formation and corrosion | |
| NL8601538A (en) | CORROSION INHIBITOR. | |
| EP0538969A2 (en) | Composition and method for inhibiting scale and corrosion using naphthylamine polycarboxylic acids | |
| JP3790860B2 (en) | Coolant composition | |
| JP2848672B2 (en) | High-temperature water-based corrosion inhibitor | |
| KR900003981B1 (en) | Method for corrosion inhibition of metals | |
| JP4110768B2 (en) | Boiler water treatment agent | |
| WO2015119528A1 (en) | Inhibitor of metal corrosion and scaling | |
| RU2122981C1 (en) | Composition for prevention carbonate deposits | |
| JP5978711B2 (en) | Iron corrosion control method | |
| JP2848671B2 (en) | High-temperature water-based corrosion inhibitor | |
| RU2124580C1 (en) | Method of protecting steel against corrosion in aqueous media | |
| RU2307798C1 (en) | Composition to inhibit salt deposition in oil production (variations) | |
| JP3925296B2 (en) | Anticorrosion method | |
| JPS6214360B2 (en) | ||
| RU2065410C1 (en) | Composition for preventing of depositions and corrosion | |
| JP5826622B2 (en) | Metal anticorrosive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20100731 |
|
| NF4A | Reinstatement of patent |
Effective date: 20120127 |