CN111115856A - Green phosphorus-free scale and corrosion inhibition material for circulating cooling water - Google Patents
Green phosphorus-free scale and corrosion inhibition material for circulating cooling water Download PDFInfo
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- CN111115856A CN111115856A CN201911363570.6A CN201911363570A CN111115856A CN 111115856 A CN111115856 A CN 111115856A CN 201911363570 A CN201911363570 A CN 201911363570A CN 111115856 A CN111115856 A CN 111115856A
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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
- C02F5/12—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
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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
Abstract
The invention discloses a green phosphorus-free scale and corrosion inhibition material for circulating cooling water, which comprises the following raw material components in parts by weight: main materials: 100-200 parts of purified water, 60-100 parts of sodium polyacrylate, 20-30 parts of AA/AMPS copolymer mixture, 15-25 parts of sulfonate-containing copolymer, 30-40 parts of polyepoxysuccinic acid, 15-30 parts of wetting agent, 5-10 parts of polyaspartic acid sodium, 10-30 parts of defoaming agent and 10-20 parts of special surfactant; the invention relates to the technical field of scale inhibition materials. The green phosphorus-free scale and corrosion inhibition material for circulating cooling water has the advantages that sodium benzotriazole, sodium mercaptobenzothiazole, methyl benzotriazole and a dispersing agent in auxiliary materials are arranged in the material, so that the stability of the scale and corrosion inhibition material can be realized by the mixed material without using phosphorus-containing organic matters, and sodium polyacrylate and related compounds thereof can be adsorbed on the surface of metal to form a thin film through the arrangement of sodium polyacrylate, so that copper and other metals are protected from being corroded by atmosphere and harmful media.
Description
Technical Field
The invention relates to the technical field of scale inhibiting materials, in particular to a green phosphorus-free scale and corrosion inhibiting material for circulating cooling water.
Background
The circulating cooling water is used for exchanging medium heat through a heat exchanger or a direct contact heat exchange mode, and is recycled after being cooled by a cooling tower so as to save water resources. In general, the circulating water is neutral and weakly alkaline, and the pH value is controlled between 7 and 9.5; in the case of circulating cooling water in direct contact with the medium, the presence of acidity or alkalinity (pH greater than 10.0) is generally less. The cooling of the circulating water is the result of the combined action of three processes of evaporation heat dissipation, contact heat dissipation and radiation heat dissipation through the contact of water and air. Evaporation and heat dissipation: the water forms big and small water drops or an extremely thin water film in the cooling equipment, the contact area between the water drops or the extremely thin water film and the air is enlarged, the contact time is prolonged, the evaporation of the water is enhanced, and the water vapor takes away the heat required by gasification from the water so as to cool the water; contact heat dissipation: the water is contacted with air with lower temperature, and the temperature difference causes the heat in the hot water to be transferred to the air, so that the water temperature is reduced; radiation heat dissipation: the phenomenon of thermal energy being propagated by a form of electromagnetic waves, without the action of a heat transfer medium.
The existing scale and corrosion inhibition materials often contain a large amount of phosphorus elements when in use, in actual use, the discharge of cooling water can cause organic pollution of water bodies, the local ecological environment is seriously influenced, and the phosphorus-containing scale and corrosion inhibition agent can cause toxic reaction of users when in use, so that the long-term stable use is not facilitated.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a green phosphorus-free scale and corrosion inhibition material for circulating cooling water, which solves the problems that the scale and corrosion inhibition material often contains a large amount of phosphorus elements when in use, the emission of the cooling water can cause organic pollution of water body in actual use and seriously influences the local ecological environment, and the phosphorus-containing scale and corrosion inhibitor can cause toxic reaction of users when in use and is not beneficial to long-term stable use.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a green phosphorus-free scale and corrosion inhibition material for circulating cooling water comprises the following raw material components in parts by weight:
main materials: 100-200 parts of purified water, 60-100 parts of sodium polyacrylate, 20-30 parts of AA/AMPS copolymer mixture, 15-25 parts of sulfonate-containing copolymer, 30-40 parts of polyepoxysuccinic acid sodium, 15-30 parts of wetting agent, 5-10 parts of polyaspartic acid sodium, 10-30 parts of defoaming agent, 10-20 parts of special surfactant, 50-60 parts of corrosion inhibitor, 15-25 parts of sodium benzotriazole, 5-10 parts of sodium mercaptobenzothiazole and 10-30 parts of tolyltriazole;
auxiliary materials: 20-50 parts of dispersing agent, 2-10 parts of phenolic hydroxyl, 10-80 parts of sulfonic acid group, 5-15 parts of poly hydroxy acid, 50-70 parts of carbon steel corrosion inhibitor, 20-30 parts of copper corrosion inhibitor, 10-20 parts of stabilizer and 10-20 parts of antioxidant.
Preferably, the main materials are as follows: 100 parts of purified water, 60 parts of sodium polyacrylate, 20 parts of AA/AMPS copolymer mixture, 15 parts of sulfonate-containing copolymer, 30 parts of polyepoxysuccinic acid, 15 parts of wetting agent, 5 parts of sodium polyaspartate, 10 parts of defoaming agent, 10 parts of special surfactant, 50 parts of corrosion inhibitor, 15 parts of sodium benzotriazole, 5 parts of sodium mercaptobenzothiazole and 10 parts of methyl benzotriazole;
auxiliary materials: 20 parts of dispersant, 2 parts of phenolic hydroxyl, 10 parts of sulfonic acid group, 5 parts of poly hydroxy acid, 50 parts of carbon steel corrosion inhibitor, 20 parts of copper corrosion inhibitor, 10 parts of stabilizer and 10 parts of antioxidant.
Preferably, the main materials are as follows: 150 parts of purified water, 80 parts of sodium polyacrylate, 25 parts of AA/AMPS copolymer mixture, 20 parts of sulfonate-containing copolymer, 35 parts of polyepoxysuccinic acid, 25 parts of wetting agent, 8 parts of sodium polyaspartate, 20 parts of defoaming agent, 15 parts of special surfactant, 55 parts of corrosion inhibitor, 20 parts of sodium benzotriazole, 8 parts of sodium mercaptobenzothiazole and 20 parts of methyl benzotriazole;
auxiliary materials: 35 parts of dispersant, 60 parts of phenolic hydroxyl, 45 parts of sulfonic acid group, 10 parts of polyhydroxy acid, 60 parts of carbon steel corrosion inhibitor, 25 parts of copper corrosion inhibitor, 15 parts of stabilizer and 15 parts of antioxidant.
Preferably, the main materials are as follows: 200 parts of purified water, 100 parts of sodium polyacrylate, 30 parts of AA/AMPS copolymer mixture, 25 parts of sulfonate-containing copolymer, 40 parts of polyepoxysuccinic acid sodium, 30 parts of wetting agent, 10 parts of polyaspartic acid sodium, 30 parts of defoaming agent, 20 parts of special surfactant, 60 parts of corrosion inhibitor, 25 parts of benzotriazole sodium, 10 parts of mercapto benzothiazole sodium and 30 parts of methyl benzotriazole;
auxiliary materials: 50 parts of dispersing agent, 10 parts of phenolic hydroxyl, 80 parts of sulfonic acid group, 15 parts of poly hydroxy acid, 70 parts of carbon steel corrosion inhibitor, 30 parts of copper corrosion inhibitor, 20 parts of stabilizer and 20 parts of antioxidant.
The invention relates to a preparation method of a green phosphorus-free scale and corrosion inhibition material for circulating cooling water, which comprises the following steps:
step 1: cleaning the working equipment: cleaning the working equipment produced in the reaction by using distilled water, wiping the cleaned working equipment by using a clean special handkerchief, and inspecting the cleaned ware by using workers;
step 2: pretreatment of the reaction material: adding purified water into a reaction vessel, slowly heating to 85 ℃, then slowly adding a dispersing agent, and stirring while adding the dispersing agent;
and step 3: mixing and adding materials for the first time: gradually adding sodium polyacrylate, AA/AMPS copolymer mixture, sulfonate-containing copolymer, polyepoxysuccinic acid, wetting agent, sodium polyaspartate, defoaming agent, special surfactant, corrosion inhibitor, sodium benzotriazole, sodium mercaptobenzothiazole and methyl benzotriazole into a reaction vessel, and fully stirring the substances in the reaction vessel;
and 4, step 4: heating and treating materials: heating the mixed materials to 95 ℃, and stirring while heating until the materials are uniformly dispersed;
and 5: adding materials for the second time: adding phenolic hydroxyl, sulfonic acid groups, poly hydroxy acid, carbon steel corrosion inhibitor, copper corrosion inhibitor, stabilizer and antioxidant in the auxiliary materials into a reaction vessel, then repeatedly stirring, and preserving heat of the equipment while stirring;
step 6: filtering to obtain a product: filtering the fully stirred materials by a filter membrane to obtain a product
Preferably, in the step 1, the equipment is cleaned when the distilled water is kept at 50 ℃.
Preferably, in the step 2, the stirrer is a medical stirrer.
Preferably, in the step 6, the size of the filter membrane is 0.45 μm.
(III) advantageous effects
The invention provides a green phosphorus-free scale and corrosion inhibition material for circulating cooling water. Compared with the prior art, the method has the following beneficial effects:
(1) the green phosphorus-free scale and corrosion inhibition material for circulating cooling water is prepared from the following main materials: 100-200 parts of purified water, 60-100 parts of sodium polyacrylate, 20-30 parts of AA/AMPS copolymer mixture, 15-25 parts of sulfonate-containing copolymer, 30-40 parts of sodium polyepoxysuccinate, 15-30 parts of wetting agent, 5-10 parts of sodium polyaspartate, 10-30 parts of defoaming agent, 10-20 parts of special surfactant, 50-60 parts of corrosion inhibitor, 15-25 parts of sodium benzotriazole, 5-10 parts of sodium mercaptobenzothiazole and 10-30 parts of tolyltriazole, wherein the mixed material can realize the stability of the scale and corrosion inhibition material without using phosphorus-containing organic matters, and the sodium polyacrylate and related compounds thereof can be adsorbed on the surface of metal to form a thin film, protecting copper and other metals from the atmosphere and from harmful media.
(2) The green phosphorus-free scale and corrosion inhibition material for circulating cooling water is prepared from the following auxiliary materials: 20-50 parts of dispersing agent, 2-10 parts of phenolic hydroxyl, 10-80 parts of sulfonic acid group, 5-15 parts of poly hydroxy acid, 50-70 parts of carbon steel corrosion inhibitor, 20-30 parts of copper corrosion inhibitor, 10-20 parts of stabilizer and 10-20 parts of antioxidant, and the corrosion inhibitor of the material, namely the colored metal copper and the copper alloy, has a corrosion inhibition effect on black metal through the combined arrangement of the carbon steel corrosion inhibitor and the copper corrosion inhibitor in auxiliary materials. The film is adsorbed on the surface of the metal to form a thin film, so that the tin and other metals are protected from being corroded by harmful media in the atmosphere and water, and the temperature resistance of the material is greatly improved.
(3) The green phosphorus-free scale and corrosion inhibition material for circulating cooling water is prepared by the following steps of 1: cleaning the working equipment: cleaning the working equipment produced in the reaction by using distilled water, wiping the cleaned working equipment by using a clean special handkerchief, and inspecting the cleaned ware by using workers; step 2: pretreatment of the reaction material: adding purified water into a reaction vessel, slowly heating to 85 ℃, then slowly adding a dispersing agent, and stirring while adding the dispersing agent; and step 3: mixing and adding materials for the first time: gradually adding sodium polyacrylate, AA/AMPS copolymer mixture, sulfonate-containing copolymer, polyepoxysuccinic acid, wetting agent, sodium polyaspartate, defoaming agent, special surfactant, corrosion inhibitor, sodium benzotriazole, sodium mercaptobenzothiazole and methyl benzotriazole into a reaction vessel, and fully stirring the substances in the reaction vessel; and 4, step 4: heating and treating materials: heating the mixed materials to 95 ℃, and stirring while heating until the materials are uniformly dispersed; and 5: adding materials for the second time: adding phenolic hydroxyl, sulfonic acid groups, poly hydroxy acid, carbon steel corrosion inhibitor, copper corrosion inhibitor, stabilizer and antioxidant in the auxiliary materials into a reaction vessel, then repeatedly stirring, and preserving heat of the equipment while stirring; step 6: filtering to obtain a product: filter the material with above-mentioned intensive mixing through filtration membrane, obtain the product, use distilled water to wash the operating equipment through in step 1, operating equipment keeps safe operating condition to through in step 4, make the material when mixing can be by intensive heating, further improve industrial output, through filtering in step 6, make the material can be through the filtration after the stirring, further improve the fine and smooth degree of material product.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the attached tables in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides three technical schemes: a preparation method of an environment-friendly coating capable of releasing negative ions specifically comprises the following embodiments:
example 1
Step 1: cleaning the working equipment: cleaning the working equipment produced in the reaction by using distilled water, wiping the cleaned working equipment by using a clean special handkerchief, and inspecting the cleaned ware by using workers;
step 2: pretreatment of the reaction material: adding 100 parts of purified water into a reaction vessel, slowly heating to 85 ℃, then slowly adding 20 parts of dispersing agent, and stirring while adding the dispersing agent;
and step 3: mixing and adding materials for the first time: adding 60 parts of sodium polyacrylate, 20 parts of AA/AMPS copolymer mixture, 15 parts of sulfonate-containing copolymer, 30 parts of polyepoxysuccinic acid, 15 parts of wetting agent, 5 parts of sodium polyaspartate, 10 parts of defoaming agent, 10 parts of special surfactant, 50 parts of corrosion inhibitor, 15 parts of sodium benzotriazole, 5 parts of sodium mercaptobenzothiazole and 10 parts of methyl benzotriazole in a reaction vessel step by step, and then fully stirring the substances in the reaction vessel:
and 4, step 4: heating and treating materials: heating the mixed materials to 95 ℃, and stirring while heating until the materials are uniformly dispersed;
and 5: adding materials for the second time: adding 2 parts of phenolic hydroxyl, 10 parts of sulfonic acid group, 5 parts of poly hydroxy acid, 50 parts of carbon steel corrosion inhibitor, 20 parts of copper corrosion inhibitor, 10 parts of stabilizer and 10 parts of antioxidant in the auxiliary materials into a reaction vessel, then repeatedly stirring, and preserving heat of the equipment while stirring;
step 6: filtering to obtain a product: and filtering the fully stirred materials through a filtering membrane to obtain a product.
Example 2
Step 1: cleaning the working equipment: cleaning the working equipment produced in the reaction by using distilled water, wiping the cleaned working equipment by using a clean special handkerchief, and inspecting the cleaned ware by using workers;
step 2: pretreatment of the reaction material: adding purified water into a reaction vessel, slowly heating to 85 ℃, then slowly adding a dispersing agent, and stirring while adding the dispersing agent;
and step 3: mixing and adding materials for the first time: adding 80 parts of sodium polyacrylate, 25 parts of AA/AMPS copolymer mixture, 20 parts of sulfonate-containing copolymer, 35 parts of polyepoxysuccinic acid, 25 parts of wetting agent, 8 parts of sodium polyaspartate, 20 parts of defoaming agent, 15 parts of special surfactant, 55 parts of corrosion inhibitor, 20 parts of sodium benzotriazole, 8 parts of sodium mercaptobenzothiazole and 20 parts of methyl benzotriazole in a reaction vessel step by step, and then fully stirring the substances in the reaction vessel:
and 4, step 4: heating and treating materials: heating the mixed materials to 95 ℃, and stirring while heating until the materials are uniformly dispersed;
and 5: adding materials for the second time: adding 60 parts of phenolic hydroxyl, 45 parts of sulfonic acid group, 10 parts of poly hydroxy acid, 60 parts of carbon steel corrosion inhibitor, 25 parts of copper corrosion inhibitor, 15 parts of stabilizer and 15 parts of antioxidant in the auxiliary materials into a reaction vessel, then repeatedly stirring, and preserving heat of the equipment while stirring;
step 6: filtering to obtain a product: and filtering the fully stirred materials through a filtering membrane to obtain a product.
Example 3
Step 1: cleaning the working equipment: cleaning the working equipment produced in the reaction by using distilled water, wiping the cleaned working equipment by using a clean special handkerchief, and inspecting the cleaned ware by using workers;
step 2: pretreatment of the reaction material: adding purified water into a reaction vessel, slowly heating to 85 ℃, then slowly adding a dispersing agent, and stirring while adding the dispersing agent;
and step 3: mixing and adding materials for the first time: 100 parts of sodium polyacrylate, 30 parts of AA/AMPS copolymer mixture, 25 parts of sulfonate-containing copolymer, 40 parts of polyepoxysuccinic acid sodium, 30 parts of wetting agent, 10 parts of polyaspartic acid sodium, 30 parts of defoaming agent, 20 parts of special surfactant, 60 parts of corrosion inhibitor, 25 parts of sodium benzotriazole, 10 parts of sodium mercaptobenzothiazole and 30 parts of methyl benzotriazole in the main materials are gradually added into a reaction vessel, and then the materials in the reaction vessel are fully stirred:
and 4, step 4: heating and treating materials: heating the mixed materials to 95 ℃, and stirring while heating until the materials are uniformly dispersed;
and 5: adding materials for the second time: adding 10 parts of phenolic hydroxyl, 80 parts of sulfonic acid group, 15 parts of poly hydroxy acid, 70 parts of carbon steel corrosion inhibitor, 30 parts of copper corrosion inhibitor, 20 parts of stabilizer and 20 parts of antioxidant in the auxiliary materials into a reaction vessel, then repeatedly stirring, and preserving heat of the equipment while stirring;
step 6: filtering to obtain a product: and filtering the fully stirred materials through a filtering membrane to obtain a product.
The sodium benzotriazole, sodium mercaptobenzothiazole, methyl benzotriazole and a dispersant in auxiliary materials are arranged in the material, so that the mixed material can realize the stability of the scale and corrosion inhibition material without using phosphorus-containing organic matters, and the sodium polyacrylate and related compounds thereof can be adsorbed on the surface of metal to form a thin film to protect copper and other metals from being corroded by atmosphere and harmful media through the arrangement of the sodium polyacrylate. The tin and other metals are protected from being corroded by harmful media in the atmosphere and water and the temperature resistance of the materials is greatly improved by forming a thin film on the surface of the metals in an adsorbing mode, working equipment is cleaned by distilled water in the step 1 and keeps a safe working state, the materials in mixing can be fully heated in the step 4, the industrial yield is further improved, the materials can be filtered after being stirred by filtering in the step 6, the fineness of the material products is further improved, the equipment is cleaned when the distilled water keeps 50 ℃, stubborn ash stains cannot be cleaned by the low-temperature distilled water, a medical stirrer is adopted, the cleanliness of the stirrer in working can be guaranteed, the specification of a filtering film is 0.45 mu m, and the material passing performance can be influenced by too high or too low specification of the filtering film, affecting the quality of the product.
Comparative experiment
According to the claim 1, the existing manufacturers can produce three phosphorus-free scale and corrosion inhibiting materials, after the three phosphorus-free scale and corrosion inhibiting materials are subjected to clean treatment, the three phosphorus-free scale and corrosion inhibiting materials and the common phosphorus-free scale and corrosion inhibiting materials are subjected to a comparison experiment of the scale inhibition rate and the aging time of the product, and as shown in the table, the lowest scale inhibition rate in the embodiment is 91 percent, the scale inhibition rate is improved by 5 percent compared with the scale inhibition rate in the comparative example, the shortest aging time is 18.5 months, and the aging time is prolonged by 5.5 months compared with the comparative example.
Table 1: comparison table of scale inhibition rate and aging time of phosphorus-free scale and corrosion inhibition material and comparative example
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A green phosphorus-free scale and corrosion inhibition material for circulating cooling water is characterized in that: the raw material components of the material comprise the following components in parts by weight:
main materials: 100-200 parts of purified water, 60-100 parts of sodium polyacrylate, 20-30 parts of AA/AMPS copolymer mixture, 15-25 parts of sulfonate-containing copolymer, 30-40 parts of polyepoxysuccinic acid sodium, 15-30 parts of wetting agent, 5-10 parts of polyaspartic acid sodium, 10-30 parts of defoaming agent, 10-20 parts of special surfactant, 50-60 parts of corrosion inhibitor, 15-25 parts of sodium benzotriazole, 5-10 parts of sodium mercaptobenzothiazole and 10-30 parts of tolyltriazole;
auxiliary materials: 20-50 parts of dispersing agent, 2-10 parts of phenolic hydroxyl, 10-80 parts of sulfonic acid group, 5-15 parts of poly hydroxy acid, 50-70 parts of carbon steel corrosion inhibitor, 20-30 parts of copper corrosion inhibitor, 10-20 parts of stabilizer and 10-20 parts of antioxidant.
2. The green phosphorus-free scale and corrosion inhibition material for circulating cooling water according to claim 1, which is characterized in that: main materials: 100 parts of purified water, 60 parts of sodium polyacrylate, 20 parts of AA/AMPS copolymer mixture, 15 parts of sulfonate-containing copolymer, 30 parts of polyepoxysuccinic acid, 15 parts of wetting agent, 5 parts of sodium polyaspartate, 10 parts of defoaming agent, 10 parts of special surfactant, 50 parts of corrosion inhibitor, 15 parts of sodium benzotriazole, 5 parts of sodium mercaptobenzothiazole and 10 parts of methyl benzotriazole;
auxiliary materials: 20 parts of dispersant, 2 parts of phenolic hydroxyl, 10 parts of sulfonic acid group, 5 parts of poly hydroxy acid, 50 parts of carbon steel corrosion inhibitor, 20 parts of copper corrosion inhibitor, 10 parts of stabilizer and 10 parts of antioxidant.
3. The green phosphorus-free scale and corrosion inhibition material for circulating cooling water according to claim 1, which is characterized in that: main materials: 150 parts of purified water, 80 parts of sodium polyacrylate, 25 parts of AA/AMPS copolymer mixture, 20 parts of sulfonate-containing copolymer, 35 parts of polyepoxysuccinic acid, 25 parts of wetting agent, 8 parts of sodium polyaspartate, 20 parts of defoaming agent, 15 parts of special surfactant, 55 parts of corrosion inhibitor, 20 parts of sodium benzotriazole, 8 parts of sodium mercaptobenzothiazole and 20 parts of methyl benzotriazole;
auxiliary materials: 35 parts of dispersant, 60 parts of phenolic hydroxyl, 45 parts of sulfonic acid group, 10 parts of polyhydroxy acid, 60 parts of carbon steel corrosion inhibitor, 25 parts of copper corrosion inhibitor, 15 parts of stabilizer and 15 parts of antioxidant.
4. The green phosphorus-free scale and corrosion inhibition material for circulating cooling water according to claim 1, which is characterized in that: main materials: 200 parts of purified water, 100 parts of sodium polyacrylate, 30 parts of AA/AMPS copolymer mixture, 25 parts of sulfonate-containing copolymer, 40 parts of polyepoxysuccinic acid sodium, 30 parts of wetting agent, 10 parts of polyaspartic acid sodium, 30 parts of defoaming agent, 20 parts of special surfactant, 60 parts of corrosion inhibitor, 25 parts of benzotriazole sodium, 10 parts of mercapto benzothiazole sodium and 30 parts of methyl benzotriazole;
auxiliary materials: 50 parts of dispersing agent, 10 parts of phenolic hydroxyl, 80 parts of sulfonic acid group, 15 parts of poly hydroxy acid, 70 parts of carbon steel corrosion inhibitor, 30 parts of copper corrosion inhibitor, 20 parts of stabilizer and 20 parts of antioxidant.
5. A preparation method of a green phosphorus-free scale and corrosion inhibition material for circulating cooling water is characterized by comprising the following steps: the method comprises the following steps:
step 1: cleaning the working equipment: cleaning the working equipment produced in the reaction by using distilled water, wiping the cleaned working equipment by using a clean special handkerchief, and inspecting the cleaned ware by using workers;
step 2: pretreatment of the reaction material: adding purified water into a reaction vessel, slowly heating to 85 ℃, then slowly adding a dispersing agent, and stirring while adding the dispersing agent;
and step 3: mixing and adding materials for the first time: gradually adding sodium polyacrylate, AA/AMPS copolymer mixture, sulfonate-containing copolymer, polyepoxysuccinic acid, wetting agent, sodium polyaspartate, defoaming agent, special surfactant, corrosion inhibitor, sodium benzotriazole, sodium mercaptobenzothiazole and methyl benzotriazole into a reaction vessel, and fully stirring the substances in the reaction vessel;
and 4, step 4: heating and treating materials: heating the mixed materials to 95 ℃, and stirring while heating until the materials are uniformly dispersed;
and 5: adding materials for the second time: adding phenolic hydroxyl, sulfonic acid groups, poly hydroxy acid, carbon steel corrosion inhibitor, copper corrosion inhibitor, stabilizer and antioxidant in the auxiliary materials into a reaction vessel, then repeatedly stirring, and preserving heat of the equipment while stirring;
step 6: filtering to obtain a product: and filtering the fully stirred materials through a filtering membrane to obtain a product.
6. The green phosphorus-free scale and corrosion inhibition material for circulating cooling water according to claim 5, characterized in that: in the step 1, the equipment is cleaned when the distilled water is kept at 50 ℃.
7. The green phosphorus-free scale and corrosion inhibition material for circulating cooling water according to claim 5, characterized in that: in the step 2, the stirrer adopts a medical stirrer.
8. The green phosphorus-free scale and corrosion inhibition material for circulating cooling water according to claim 5, characterized in that: in the step 6, the specification of the filter membrane is 0.45 μm.
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| CN201911363570.6A CN111115856A (en) | 2019-12-25 | 2019-12-25 | Green phosphorus-free scale and corrosion inhibition material for circulating cooling water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112591903A (en) * | 2020-11-27 | 2021-04-02 | 辽宁蓝欣环保科技有限公司 | LX type industrial corrosion and scale inhibitor |
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| WO2002083289A2 (en) * | 2001-02-12 | 2002-10-24 | Dober Chemical Corporation | Conrrolled realease cooling additive composition |
| CN102730867A (en) * | 2011-04-02 | 2012-10-17 | 中国石油化工股份有限公司 | Treatment method of circulating water with leaked oil |
| CN103420497A (en) * | 2013-08-26 | 2013-12-04 | 南京理工大学 | Non-phosphorous corrosion and scale inhibitor containing lignosulfonate and application thereof |
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Application publication date: 20200508 |