CN102633372B - Phosphate-free copper alloy composite corrosion inhibitor for seawater circulating cooling water, and preparation and using methods of phosphate-free copper alloy composite corrosion inhibitor - Google Patents
Phosphate-free copper alloy composite corrosion inhibitor for seawater circulating cooling water, and preparation and using methods of phosphate-free copper alloy composite corrosion inhibitor Download PDFInfo
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Abstract
The invention discloses a phosphate-free copper alloy composite corrosion inhibitor for seawater circulating cooling water, and preparation and using methods of the phosphate-free copper alloy composite corrosion inhibitor. The phosphate-free copper alloy composite corrosion inhibitor consists of a prefilming agent and a normal-operation corrosion inhibitor, wherein the prefilming agent refers to an organic azole compound and the normal-operation corrosion inhibitor consists of an organic azole compound and inorganic salt. Aiming at the characteristics of a seawater circulating cooling technology and requirements on system economic operation, a technology for cooling seawater by firstly adopting the high-concentration organic azole polybasic prefilming agent for treatment and secondly adopting the low-concentration compounded normal-operation corrosion inhibitor for treatment is provided, and therefore, the purposes that the corrosion inhibitor rapidly forms films with high concentration and keeps the operation of film maintenance in low concentration are realized; and within concentration multiple 1.8-2.2, the corrosion rate of copper alloy is controlled to be less than 0.003mm/a. The phosphate-free copper alloy composite corrosion inhibitor product has extensive sources of materials, excellent solubility, high cost performance, low toxicity, environment-friendliness, no phosphate, no pollution to sea environment, and good compatibility with a seawater dirt dispersion agent and a bacteria-algae inhibitor.
Description
Technical field
The present invention relates to technology of industrial recirculating cooling water treatment field, more particularly, it relates to a kind of marine circulating cooling system
Water is without phosphor copper composite corrosion inhibitor and its preparation and application.
Background technology
Marine circulating cooling system as an environmental protective, water saving technology, in the highly water intensive industry such as electric power, chemical industry, petrochemical industry, iron and steel
There is huge potential application demand, exploitation and using of seawater replaces fresh water as industrial circulating cooling water, is to alleviate China coast
City and regional freshwater resources are in short supply, protect one of important channel of the marine eco-environment.
In today that freshwater resources are increasingly in short supply, direct seawater utilization has obtained the common concern of various circles of society.Increasingly
Many Coastal Power Plants and chemical enterprise adopt the industrial cooling water of sea water replacement fresh water work in production.Copper alloy is excellent because of its
Heat conduction and machinability be widely used in the condenser of cooling system (or heat exchanger), yet with sea water component
Complexity and corrosion influence factors multiformity, copper alloy can occur than more serious corrosion, so as to shadow in seawer system
Ring its heat conductivity and service life.It is external earliest with regard to seawer system or the research of marine circulating cooling system system copper alloy corrosion inhibiter
It is Exxon companies of U.S. report, system cycles of concentration is controlled 1.5～2.0, and admirality brass corrosion control index reaches
0.03mm/a(An Innovative Approach to Controlling Salt Water Cooling Tower
System Problems [J] .Materials performance, 1978,17 (12)：16-22).The country is in sea water or simulation
Copper inhibitor research is very active in sea water (salt medium).The copper inhibitor research in saline and artificial sea water with regard to simulated seawater
Report is more, less in sea water and circulating cooling Copper Sea Waters corrosion inhibiter research report.For example：" Copper Sea Waters nickel alloy is with again
Close the preparation method of corrosion inhibiter " (2005) Chinese publication CN1880505A is provided by benzimidazole 15%～35%, sulphuric acid
Zinc 1%～2%, sodium molybdate 35%～60%, sodium silicate 7%～15%, sodium gluconate 7%～14%, sodium hexameta phosphate 2%
～4%, the phosphorous compound prescription of the composition of sodium metasilicate 2%～4%, under 300mg/L concentrations, surpasses to the corrosion inhibition rate of B10
90% is crossed, to the corrosion inhibition rate of B30 more than 85%, but its experimental condition is stood in sea water in room temperature, it is adaptable to closed or stand system
The anti-corrosion of system copper alloy, it is inadaptable in open type marine circulating cooling system system, it is especially economically beyond affordability." sea water conduct
(2006) Chinese granted patent CN11275878C provides by corrosion inhibiter, antisludging agent, biocide the processing method of recirculated cooling water "
The sea water method for treating water of composition, wherein corrosion inhibiter dosage are 40mg/L～50mg/L, by sodium molybdate 10%～20%, Fructus Vitis viniferae
Sodium saccharate 12%～20%, sodium benzoate 5%～10%, zinc sulfate 10%～20%, zinc chloride 5%～10%, citric acid three
Sodium 8%～15%, sulfamic acid 4%～8%, sodium hexameta phosphate 4%～8%, sodium sulfate 5%～10, phenylpropyl alcohol triazole 4%～
The phosphorous compound prescription of 10% composition, is 1.5～2.0 in sea water cycles of concentration, and the corrosion rate for controlling admirality brass is less than
0.009mm/a, corrosion inhibition rate is low, and inhibition index is not up to《Circularly-cooling sea water processes design specification》(GB/T 23248-
2009) technical requirements less than 0.005mm/a of regulation, and cost of water treatment is also higher.
From the analysis of finding relevant report, there is certain gap about achievement in research and practical application, in technology, economy, ring
Guarantor's aspect is still faced with some problem demanding prompt solutions：(1) experiment condition can not simulated seawater circulating cooling system operation very well
Operating mode (temperature, flow velocity, concentration rate etc.), adaptability of the achievement in research in sea water cooling system does not have cogency；(2) delay
Erosion technical specification has much room for improvement, and some composite corrosion inhibitors developed, corrosion mitigating effect is low, and control corrosion of copper alloy speed does not reach
The technical requirements that design specification specifies are processed to circularly-cooling sea water；(3) cost of water treatment is higher, corrosion inhibiter single dose or compound
In the seawater consumption is big for formula, such as the huge height of sodium molybdate unit price, and concentration is higher, substantially increases cost of water treatment.And
Average level in preresearch estimates some more existing industrial collings of composite corrosion inhibitor ton cost of water treatment is up to several times, Nai Zhishi
Several times, use cost is sufficiently expensive, does not have practicality and the market competitiveness in marine circulating cooling system system；(4) discharging water will
Can be limited by environmental protection, for a long time, phosphorus (phosphine) corrosion inhibitor for easily causing body eutrophication occupies the main flow of water treatment agent, closely
Nian Lai, is limited by country, local sewage drainage standard and sea environment-friendly, and in cold water process field " limit has been started again
The cry of phosphorus ", " taboo phosphorus ", some phosphorous water treatment agents gradually lose the competitive advantage in market, are faced with the situation being eliminated, nothing
Phosphatization water technology has become industry focus of attention.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of circularly-cooling sea water is multiple without phosphor copper
Corrosion inhibiter and its preparation and application are closed, to solve etching problem of the copper alloy in marine circulating cooling system system, for working as
Front marine circulating cooling system technology development and the needs of marine eco-environment protection, come around performance, environment and economic three big targets
Design research and development Novel copper alloy corrosion inhibitor of sea water.
The purpose of the present invention is achieved by following technical proposals：
A kind of circularly-cooling sea water without phosphor copper composite corrosion inhibitor, the prefilming agent that used by pretreatment stage and normal
The corrosion inhibiter composition that operation phase uses, wherein：
The prefilming agent be organic imidazole compound, such as benzotriazole, mercapto benzothiazole, TTA
Or imidazoline one or two, consumption is 100mg/L～200mg/L, mainly using its adsorption precipitation effect；
The corrosion inhibiter is made up of organic imidazole compound and inorganic salt, wherein：The organic imidazole compound is benzene a pair of horses going side by side
Triazole, mercapto benzothiazole, TTA or imidazoline one or two, consumption is 3mg/L～9mg/L, main
Will be using its adsorption precipitation effect
The inorganic salt is rare-earth salts, zinc salt or molybdate, mainly using the effect of its cathode deposition, consumption be 2mg/L～
20mg/L：
The rare-earth salts for rare earth element inorganic acid salt or acylate, specially hydrochlorate, nitrate or acetate,
Such as lanthanum chloride, Lanthanum (III) nitrate, lanthanum acetate, zirconium nitrate, cerium chloride, cerous nitrate, cerous acetate, Yttrium chloride(Y2Cl6), Yttrium trinitrate or acetic acid yttrium, it is main
To be reacted using rare earth element；
The zinc salt is zinc sulfate, zinc chloride or zinc gluconate, with Zn2+Meter consumption, mainly uses zinc ion generation
Reaction
The molybdate is alkali metal molybdates or molybdic acid alkali salt, such as sodium molybdate, potassium molybdate, magnesium molybdate or molybdenum
Sour ammonium, mainly uses its non-oxidizability.
Each component content is preferably as follows：
The consumption of organic imidazole compound is 150mg/L～200mg/L in the prefilming agent.
The consumption of organic imidazole compound is 3mg/L～6mg/L in the corrosion inhibiter.
The consumption of inorganic salt is 2～15mg/L in the corrosion inhibiter.
When the composite corrosion inhibitor of the present invention is prepared, benzotriazole water or organic solvent (such as ethanol) dissolve,
Imidazoline organic solvent (such as isopropanol) dissolves, and mercapto benzothiazole, TTA are with alkali liquor (such as sodium hydroxide)
Dissolving, other inorganic salts are prepared with solvent (deionized water or tap water).
Directly dissolved using solvent (deionized water, tap water, Organic Alcohol or alkali liquor) and carry out after corresponding material constant volume, with
Reach finite concentration (can accelerate dissolving) using stirring or heating；Then according to sea water usage amount and formulated
Solution concentration (Organic substance and inorganic salt) calculates its usage amount, by formulated solution and sea water mixing, so that final sea water
In each component respectively reach the concentration requirement of corrosion inhibiter under prefilming agent and normal operation.
The composite corrosion inhibitor of the present invention selects without phosphorus raw material, is raw material from organic azole, inorganic salt compound, and collaboration has
Machine Azole Corrosion Inhibitors adsorption precipitation film, inorganic salt cathode deposition membranous type binding mode, realize for copper alloy in the seawater slow
Corrosion energy.
When in use, first (step 1) (can first according to sea water by the prefilming agent used for pretreatment stage prepared
Amount, the concentration of prefilming agent and component proportion calculate the consumption of each component and are configured to solution) it is added to sea water or benefit
In filling sea water (concentration requirement of prefilming agent in reach invention), then under room temperature (20 DEG C～30 DEG C), dynamic (lacing film rotating speed
80r/min～120r/min starts circulating pump) under conditions of, continuous operation at least 24h, preferred 24h～48h, with copper
Alloy surface quickly forms preservative protective film；(step 2) is proceeded in normal inhibition sea water after pre- film, the normal operation that will be prepared
The corrosion inhibiter that stage uses (according to sea water amount or can possess the water yield, concentration rate, sea water rate of water make-up or blowdown flow rate, normal operation
The component proportion of corrosion inhibiter concentration and corrosion inhibiter calculates the basic dosage and normal usage of each component, then weighs simultaneously
It is configured to solution) it is added in sea water or cooling system (concentration requirement of corrosion inhibiter in reach invention), maintain corrosion inhibiter low
Concentration is run to realize the reparation to protecting film.
A kind of circularly-cooling sea water of the present invention delays without phosphor copper composite corrosion inhibitor, including prefilming agent and normal operation
Erosion agent, for marine circulating cooling system process characteristic and systematic economy service requirement, proposes that the organic azole first using high concentration is more
First prefilming agent is processed, then proceeds to a kind of technique of the normal operation corrosion inhibiter process refrigerated sea water of low concentration compounding, realizes inhibition
Agent high concentration fast filming, low concentration maintains operation to repair the purpose of film, between cycles of concentration 1.8～2.2, controls corrosion of copper alloy
Speed is less than 0.003mm/a, and technical performance index reaches《Circularly-cooling sea water processes design specification》(GB/T23248-
2009) the 0.005mm/a standard specifications of regulation, technical-economic index can reach the marine circulating cooling system that the country has run
Demonstration project level.Extensively, favorable solubility, cost performance is high, low toxicity for the corrosion inhibitor product raw material sources of the present invention, environment-friendly type without
Phosphorus, not pollution of marine environment；It is good with sea water dirt dispersion agent, bacterium algae inhibitor compatibility, it is a kind of without phosphorus ring efficiently, economic
Guarantor's type sea water water treatment agent, has broad application prospects.
Specific embodiment
Technical scheme is further illustrated with reference to specific embodiment.The sea water for using takes from Tianjin seismic network sea
Water warfare factory, water quality index：PH value 7.31, electrical conductivity 3.99 × 104μ s/cm, basicity 123mg/L, turbidity ＜ 10mg/L, Ca2+
380mg/L, Mg2+1162mg/L, SO4 2-2478mg/L, Cl-17403mg/L。
Electrochemical test method using conventional weak polarization measuring technology, monitor aldubra working electrode corrosion condition and
Corrosion inhibiter film forming situation.
Corrosion weight loss method according to《The measure of water treatment agent corrosion inhibition-rotary hanging plate method》GB/T 18175-2000 standards,
Material is aldubra (HAl77-2A), admirality brass (HSn62, HSn70) test piece or test ring, and experiment condition is：Room temperature (20 DEG C)
After dynamic (rotating speed 80r/min) pre- film 24h, in proceeding to 50 DEG C ± 1 DEG C of normal inhibition sea water, continuous operation 120 hours.
Dynamic analog test is carried out using power system marine circulating cooling system dynamic simulation tester, experiment condition
For：Quantity of circulating water 1000L/h, velocity in pipes 0.6m/s, possess water yield 450L, cycles of concentration 1.8～2.2, balance of nature pH value,
45 DEG C of recirculated water leaving water temperature, cooling tower turnover 6 DEG C～10 DEG C of water temperature difference, test material be pyrite (HAl77-2A, HSn62,
HSn70) test tube and test piece, 18 days test periods.
Without the situation that inhibition is carried out in the case of pre-filming treatment：
1., without pre-filming treatment, benzotriazole 1mg/L, mercapto benzothiazole 6mg/L, chlorination are directly added in sea water
Zinc (Zn2+Meter) 5mg/L, under room temperature (20 DEG C) static conditions, aldubra electrode film forming 1h, measurement polarization resistance is 8266 Ω
cm2, corrosion rate 0.04106mm/a, corrosion inhibition rate 34.51%.
2., without pre-filming treatment, benzotriazole 2mg/L, mercapto benzothiazole 6mg/L, sulphuric acid are directly added in sea water
Zinc (Zn2+Meter) 5mg/L, under room temperature (20 DEG C) static conditions, aldubra electrode film forming 1h, measurement polarization resistance is 10483
Ω·cm2, corrosion rate 0.02885mm/a, corrosion inhibition rate 54%.
3., without pre-filming treatment, benzotriazole 3mg/L, mercapto benzothiazole 2mg/L, Fructus Vitis viniferae are directly added in sea water
Saccharic acid zinc (Zn2+Meter) 4mg/L, under room temperature (20 DEG C) static conditions, aldubra electrode film forming 1h, measuring polarization resistance is
10138Ω·cm2, corrosion rate 0.03232mm/a, corrosion inhibition rate 48.45%.
Embodiment 1
Test by corrosion weight loss, benzotriazole 50mg/L, mercapto benzothiazole 50mg/L are added in sea water, aluminum is yellow
Copper test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 24h), then proceeds to benzene a pair of horses going side by side
Triazole 2mg/L, mercapto benzothiazole 6mg/L, zinc sulfate (Zn2+Meter) 2mg/L sea water in run, measure corrosion rate
0.00150mm/a。
Embodiment 2
Test by corrosion weight loss, benzotriazole 50mg/L, mercapto benzothiazole 50mg/L are added in sea water, aluminum is yellow
Copper test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 120r/min of dynamic, continuously running 48h), then proceeds to benzene
Parallel triazole 3mg/L, mercapto benzothiazole 2mg/L, zinc chloride (Zn2+Meter) 4mg/L sea water in run, measure corrosion rate
0.00125mm/a。
Embodiment 3
Test by corrosion weight loss, benzotriazole 50mg/L, mercapto benzothiazole 100mg/L are added in sea water, by aluminum
Pyrite test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 100r/min of dynamic, continuously running 35h), then proceeds to
Benzotriazole 2mg/L, mercapto benzothiazole 6mg/L, run in the sea water of zinc gluconate 5mg/L, measure corrosion rate
0.00146mm/a。
Embodiment 4
Test by corrosion weight loss, benzotriazole 80mg/L, mercapto benzothiazole 100mg/L are added in sea water, by aluminum
Pyrite test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 24h), then proceeds to benzene
Parallel triazole 3mg/L, mercapto benzothiazole 3mg/L, run in the sea water of Lanthanum (III) nitrate 5mg/L, measure corrosion rate
0.00143mm/a。
Embodiment 5
Test by corrosion weight loss, benzotriazole 50mg/L, mercapto benzothiazole 150mg/L are added in sea water, by aluminum
Pyrite test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 48h), then proceeds to benzene
Parallel triazole 3mg/L, mercapto benzothiazole 6mg/L, run in the sea water of sodium molybdate 15mg/L, measure corrosion rate
0.00074mm/a。
Embodiment 6
Test by corrosion weight loss, benzotriazole 40mg/L, mercapto benzothiazole 150mg/L are added in sea water, by aluminum
Pyrite test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 30h), then proceeds to benzene
Parallel triazole 3mg/L, mercapto benzothiazole 2mg/L, run in the sea water of potassium molybdate 20mg/L, measure corrosion rate
0.00090mm/a。
Embodiment 7
Test by corrosion weight loss, TTA 40mg/L, mercapto benzothiazole 80mg/L are added in sea water, will
Aldubra test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 30h), then proceeds to
TTA 3mg/L, mercapto benzothiazole 2mg/L, run in the sea water of Yttrium chloride(Y2Cl6) 20mg/L, measure corrosion rate
0.00115mm/a。
Embodiment 8
Test by corrosion weight loss, benzotriazole 40mg/L, imidazoline 150mg/L are added in sea water, aldubra is tried
Piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 30h), then proceeds to benzene three nitrogen of a pair of horses going side by side
Azoles 3mg/L, imidazoline 6mg/L, run in the sea water of cerium chloride 15mg/L, measure corrosion rate 0.00124mm/a.
Embodiment 9
Test by corrosion weight loss, imidazoline 50mg/L, mercapto benzothiazole 70mg/L are added in sea water, aldubra is tried
Piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 24h), then proceeds to benzene three nitrogen of a pair of horses going side by side
Azoles 3mg/L, mercapto benzothiazole 2mg/L, run in the sea water of lanthanum acetate 5mg/L, measure corrosion rate 0.00108mm/a.
Embodiment 10
Test by corrosion weight loss, imidazoline 40mg/L, mercapto benzothiazole 150mg/L are added in sea water, by aldubra
Test piece carries out pre-filming treatment (at 20 DEG C of room temperature, the i.e. lacing film rotating speed 80r/min of dynamic, continuously running 30h), then proceeds to benzene a pair of horses going side by side three
Nitrogen azoles 3mg/L, mercapto benzothiazole 2mg/L, run in the sea water of ammonium molybdate 15mg/L, measure corrosion rate 0.00098mm/a.
Processed with the brass material that identical pre-filming treatment is different to three kinds with the inhibition scheme of normal operation
Benzotriazole 50mg/L, mercapto benzothiazole 150mg/L are added in sea water, it is dynamic in (20 DEG C) of room temperature
(80r/min) under the conditions of, aldubra electrode film forming 24h, weak polarization test polarization resistance is 126.4K Ω cm2.By three kinds of Huangs
Copper is all carried out after pre-filming treatment, then carries out benzotriazole 2mg/L, mercapto benzothiazole 6mg/L, zinc chloride (Zn2+Meter) 2mg/L
Sea water in normally run, corrosion weight loss result is：The corrosion rate of Hsn62, Hsn70, HAl77-2A is respectively
0.00207mm/a、0.00083mm/a、0.00118mm/a。
Using power system marine circulating cooling system dynamic analog test, at above-mentioned three kinds of different brass materials
Reason, pre-filming treatment and normal operation are processed with described in epimere, corrosion of copper alloy control result：The corrosion rate of HAl77-2A is less than
The corrosion rate of 0.002mm/a, Hsn62 and HSn70 is respectively less than 0.003mm/a.
Although being described to the preferred embodiments of the present invention above, the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned specific embodiment is only schematic, is not restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, can also make very
Multi-form concrete conversion, these are belonged within protection scope of the present invention.
Claims (7)
1. a kind of circularly-cooling sea water is without phosphor copper composite corrosion inhibitor, the prefilming agent used by pretreatment stage and normal fortune
The corrosion inhibiter composition that row order section is used, it is characterised in that wherein：
The prefilming agent is organic imidazole compound, and consumption is 100mg/L～200mg/L；
The corrosion inhibiter is made up of organic imidazole compound and the salt in rare-earth salts or zinc salt, wherein：Organic azole
Compound is one or two of benzotriazole, mercapto benzothiazole, TTA or imidazoline, and consumption is 3mg/
L～9mg/L；
The consumption of the rare-earth salts or zinc salt is 2mg/L～20mg/L；
The rare-earth salts is the inorganic acid salt or acylate of rare earth element, specially hydrochlorate, nitrate or acetate；
The zinc salt is zinc sulfate, zinc chloride or zinc gluconate；
In the prefilming agent, the organic imidazole compound is benzotriazole, mercapto benzothiazole, TTA
Or imidazoline one or two；In the corrosion inhibiter that normal operating phase is used, the rare-earth salts be lanthanum chloride, Lanthanum (III) nitrate,
Lanthanum acetate, cerium chloride, cerous nitrate, cerous acetate, Yttrium chloride(Y2Cl6), Yttrium trinitrate or acetic acid yttrium.
2. a kind of circularly-cooling sea water according to claim 1 is without phosphor copper composite corrosion inhibitor, it is characterised in that each
Individual component content is as follows：
The consumption of organic imidazole compound is 150mg/L～200mg/L in the prefilming agent,
The consumption of organic imidazole compound is 3mg/L～6mg/L in the corrosion inhibiter,
The consumption of the corrosion inhibiter middle rare earth salt or zinc salt is 2mg/L～15mg/L.
3. a kind of method for preparing composite corrosion inhibitor as claimed in claim 1, it is characterised in that benzotriazole water has
Machine solvent dissolves, and imidazoline organic solvent dissolves, and mercapto benzothiazole, TTA alkali liquor dissolves, and other are dilute
Earth salt or zinc salt are prepared with solvent；Directly dissolved using solvent and carry out after corresponding material constant volume, to reach finite concentration
, then its usage amount is calculated according to sea water usage amount and formulated solution concentration, by formulated solution and sea
Water mixes, so that the concentration that each component in final sea water respectively reaches corrosion inhibiter under prefilming agent and normal operation will
Ask.
4. the preparation method of composite corrosion inhibitor according to claim 3, it is characterised in that described for dissolving benzene three nitrogen of a pair of horses going side by side
The organic solvent of azoles is ethanol, and the organic solvent for dissolving imidazoline is isopropanol, for dissolving mercapto benzothiazole, methyl
The alkali liquor of benzotriazole is sodium hydrate aqueous solution；Solvent for dissolving rare-earth salts or zinc salt is deionized water or originally
Water.
5. a kind of using method of composite corrosion inhibitor as claimed in claim 1, it is characterised in that when in use, step (1) will
Prepare for the prefilming agent that pretreatment stage is used be added to sea water or supplement sea water in so that each component reaches prefilming agent
Concentration requirement, then at normal temperatures, it is dynamic under the conditions of, continuous operation at least 24h, quickly to form anti-in copper alloy surface
Rotten protecting film；Proceed in normal inhibition sea water after the pre- film of step (2), the corrosion inhibiter that the normal operating phase that will be prepared is used is thrown
It is added in sea water or cooling system so that each component reaches the concentration requirement of corrosion inhibiter, maintains corrosion inhibiter low concentration to run with reality
Now to the reparation of protecting film.
6. the using method of composite corrosion inhibitor according to claim 5, it is characterised in that in the step (1), room temperature is
20 DEG C～30 DEG C, the dynamic condition is lacing film rotating speed 80r/min～120r/min or starts circulating pump.
7. the using method of composite corrosion inhibitor according to claim 5, it is characterised in that in the step (1), continuous fortune
Row time 24h～48h.
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| CN103352225B (en) * | 2013-07-22 | 2015-12-09 | 上海电力学院 | A kind of yellow metal corrosion inhibitor and preparation method thereof |
| CN103436888B (en) * | 2013-08-23 | 2015-07-01 | 南京理工大学 | High temperature copper corrosion inhibitor containing benzimidazole and preparation method of high temperature copper corrosion inhibitor |
| CN105016489B (en) * | 2014-04-18 | 2017-10-17 | 梁瑛 | A kind of composition, its preparation method and its application method for water system |
| CN104152909B (en) * | 2014-08-21 | 2016-06-22 | 长沙沃尔金属表面技术有限公司 | A kind of powder metallurgy castings aqueous rust preventive and preparation method thereof |
| CN110036140A (en) * | 2016-10-04 | 2019-07-19 | 联邦科学和工业研究组织 | Inhibit the method for corrosion |
| CN107055819B (en) * | 2016-11-13 | 2020-08-21 | 滨州学院 | Green water treatment agent with corrosion and scale inhibition performance and application thereof |
| CN115094406B (en) * | 2022-06-20 | 2023-10-20 | 邢台旭阳科技有限公司 | Phosphorus-free prefilming agent and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100471A (en) * | 1985-04-01 | 1986-07-30 | 华东化工学院 | A kind of tungsten is the prescription of water conditioner |
| CN1880244A (en) * | 2005-06-17 | 2006-12-20 | 王炜 | Composite water treating agent for central air conditioner cooling water |
| CN102216494A (en) * | 2008-11-20 | 2011-10-12 | 纳尔科公司 | Composition and method for controlling copper discharge and erosion of copper alloys in industrial systems |
-
2012
- 2012-04-23 CN CN201210121066.7A patent/CN102633372B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100471A (en) * | 1985-04-01 | 1986-07-30 | 华东化工学院 | A kind of tungsten is the prescription of water conditioner |
| CN1880244A (en) * | 2005-06-17 | 2006-12-20 | 王炜 | Composite water treating agent for central air conditioner cooling water |
| CN102216494A (en) * | 2008-11-20 | 2011-10-12 | 纳尔科公司 | Composition and method for controlling copper discharge and erosion of copper alloys in industrial systems |
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Address after: 300192 No. 55 Navigation Channel, Nankai District, Tianjin Patentee after: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, MNR (TIANJIN) Address before: 300192 Tianjin East Road, Nankai District, No. 1 Patentee before: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, SOA (TIANJIN) |
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Effective date of registration: 20191224 Address after: 300452 No.52, Zhujiang 1st Street, Lingang Economic Zone, Binhai New Area, Tianjin Patentee after: Tianjin Zhonghai Treatment Technology Co.,Ltd. Address before: 300192 No. 55 Navigation Channel, Nankai District, Tianjin Patentee before: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, MNR (TIANJIN) |