CN109052677A - A kind of recirculated water corrosion inhibiting and descaling agent and its application method - Google Patents
A kind of recirculated water corrosion inhibiting and descaling agent and its application method Download PDFInfo
- Publication number
- CN109052677A CN109052677A CN201811045928.6A CN201811045928A CN109052677A CN 109052677 A CN109052677 A CN 109052677A CN 201811045928 A CN201811045928 A CN 201811045928A CN 109052677 A CN109052677 A CN 109052677A
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- CN
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- Prior art keywords
- parts
- recirculated water
- corrosion inhibiting
- descaling agent
- water corrosion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C02F5/145—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 combined with inorganic substances
-
- 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
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- 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
- C02F2303/04—Disinfection
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
Abstract
The present invention provides a kind of recirculated water corrosion inhibiting and descaling agent, it includes following mass parts raw material: 6~15 parts of hydroxy ethylene diphosphonic acid sodium, 2~6 parts of ammonium of butyl hexamethyl dibrominated, 1~5 part of zinc chloride, 10~18 parts of aminotrimethylene sodium phosphate, 1~3 part of benzotriazole, 0.5~5 part of hydroxymethyl cellulose and 9,8~30 parts of 12- octadecadienoic acid.The recirculated water corrosion inhibiting and descaling agent has outstanding inhibition, scale inhibition and bactericidal effect, while the present invention also provides the application methods of the recirculated water corrosion inhibiting and descaling agent.
Description
Technical field
The present invention relates to a kind of antisludging agents, and in particular, to a kind of recirculated water corrosion inhibiting and descaling agent and its application method.
Background technique
The of less demanding of water quality can be recycled in industrial recirculated cooling water.On the one hand, cooling water is being recycled
It is come into full contact in the process with air, supplements the dissolved oxygen in water, so what circulation oxygen in water was always saturated.In water
Dissolved oxygen is the principal element for causing electrochemical metal to corrode, and therefore, cooling water is recycled easy bring material corrosion and asks
Topic.On the other hand, the problem of water is influenced in cyclic process by temperature, often will appear fouling causes equipment, pipeline rust to be worn
Or because scale effect is conducted heat, equipment, pipeline-weld cracking are caused, manufacturing schedule is seriously affected, threatens worker's life security.
In order to solve this problem, the circulatory system to be guaranteed is run in the state of good, it is necessary to be selected high performance slow
Lose antisludging agent.
Currently, in industrial circulating water available corrosion inhibiting and descaling agent monomer mainly have nitrite, chromate, zinc salt,
Organic phosphonate and silicate, in these corrosion inhibiting and descaling agent monomers, with the presence of monomer toxicity it is big, that heat meets chlorine is labile
Disadvantage gradually becomes the requirement for being unable to satisfy industrial circulating water corrosion inhibiting and descaling agent instantly.For high temperature, high rigidity, high chlorine from
Its processing of sub- water quality has specific characteristics, and needs the normal operation of special dirt dispersion agent ability circulation.Meanwhile some are
For system because of high temperature, evaporated water is big, when a large amount of moisturizings requires that special dirt dispersion agent is added every time, dosage is big, and this kind of height
Difficulty dirt dispersion agent is on the high side.
Therefore, it develops a kind of with high-efficiency sustained-release, scale inhibition, favorable dispersibility, the multiple performance that can control microorganism, place
It is good, at low cost to manage simple process, effect, actively without noxious material, is easy to using Green Chemical Technology using cleaning procedure
Biodegradable, real environment amenable recirculated water corrosion inhibiting and descaling agent has important practical value.
Summary of the invention
In view of this, the present invention provides a kind of recirculated water corrosion inhibiting and descaling agent and its application method, to solve the above problems.
Specifically, the present invention adopts the following technical scheme that:
A kind of recirculated water corrosion inhibiting and descaling agent, it includes following mass parts raw material: 6~15 parts of hydroxy ethylene diphosphonic acid sodium, butyl
2~6 parts of hexamethyl dibrominated ammonium, 1~5 part of zinc chloride, 10~18 parts of aminotrimethylene sodium phosphate, 1~3 part of benzotriazole,
0.5~5 part and 8~30 parts of 9,12 octadecadienoic acid of hydroxymethyl cellulose.
Based on above-mentioned recirculated water corrosion inhibiting and descaling agent, it includes following mass parts raw material: hydroxy ethylene diphosphonic acid sodium 8~12
Part, 3~4 parts of ammonium of butyl hexamethyl dibrominated, 2~4 parts of zinc chloride, 13~17 parts of aminotrimethylene sodium phosphate, benzotriazole 1
~3 parts, 2~4 parts of hydroxymethyl cellulose and 9,12~25 parts of 12- octadecadienoic acid.
A kind of application method of the recirculated water corrosion inhibiting and descaling agent, it is included in every 1 L recirculated water follows described in addition
The step of ring water 80~120 mg of corrosion inhibiting and descaling agent.
Compared with prior art, the present invention has substantive distinguishing features outstanding and marked improvement.Specifically, the present invention mentions
The recirculated water corrosion inhibiting and descaling agent of confession has the advantage that
1. the recirculated water corrosion inhibiting and descaling agent passes through hydroxy ethylene diphosphonic acid sodium, butyl hexamethyl dibrominated ammonium and 9,12- 18
Three kinds of surfactants of carbon dienoic acid combine, and the stability for effectively improving recirculated water avoids the deposition of inorganic salts；Hydroxyl simultaneously
Ethylidene diphosphonic acid sodium also has sustained release performance, can disperse the dirts such as iron hydroxide, the zinc hydroxide in water system well, to height
Concentration, high pH value condition water quality are equally effective；And butyl hexamethyl dibrominated ammonium has dispersing and antisludging effect to biological sludge in industrial, has concurrently
Inorganic and organic anti-scale double action has very strong inhibition and elimination to the dirt of the formation such as calcium ions and magnesium ions, colloidal particle
Effect；There is other 9,12- octadecadienoic acid active double bond addition reaction as shown in Equation 1 can occur with HBr, again
It can be combined with butyl hexamethyl dibrominated ammonium and play high-efficiency broad spectrum sterilization algae removal effect.
Formula 1
2. in the recirculated water corrosion inhibiting and descaling agent zinc chloride be cathode type corrosion inhibiter, can in the metal surface fast filming of aqueous medium,
The zinc ion that can be formed a film in cathodic region encounters to come from anode region travelling when zinc ion is swum to cathodic region metal surface
Free electron, then zinc ion becomes zinc atom and is deposited on cathodic region steel surface after obtaining electronics, the electrode electricity of this element
Position is lower than iron, thus has a kind of repulsion to subsequent free electron, it is therefore prevented that free electron passes through dissolved oxygen of the film layer into water
Conveying, controls the occurrence and development of corrosion cell phenomenon.
3. aminotrimethylene sodium phosphate is water stabilizer in the recirculated water corrosion inhibiting and descaling agent, have to the calcium salt in water aobvious
The stabilization of work；Benzotriazole is copper inhibitor, can form protective film on copper surface, copper product is effectively prevent to corrode.
4. it is cooling that the recirculated water corrosion inhibiting and descaling agent can be widely applied to the industrial cycles such as electric power, chemical industry, metallurgy, chemical fertilizer
Water system, various types of raw waters, soft water, the Water purification of hot-water boiler and steam boiler and oil-field flooding and petroleum pipeline
The scale inhibition of line and inhibition.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
Embodiment 1
A kind of recirculated water corrosion inhibiting and descaling agent, it includes following mass parts raw material: 6 parts of hydroxy ethylene diphosphonic acid sodium, butyl pregnancy
2 parts of base dibrominated ammonium, 1 part of zinc chloride, 10 parts of aminotrimethylene sodium phosphate, 1 part of benzotriazole, 0.5 part of hydroxymethyl cellulose
With 30 parts of 9,12 octadecadienoic acid.
A kind of application method of the recirculated water corrosion inhibiting and descaling agent, it, which is included in every 1 L recirculated water, is added the circulation
The step of water 80~120 mg of corrosion inhibiting and descaling agent.
Embodiment 2
A kind of recirculated water corrosion inhibiting and descaling agent, it includes following mass parts raw material: 8 parts of hydroxy ethylene diphosphonic acid sodium, butyl pregnancy
4 parts of base dibrominated ammonium, 4 parts of zinc chloride, 17 parts of aminotrimethylene sodium phosphate, 3 parts of benzotriazole, 4 parts of hydroxymethyl cellulose and
25 parts of 9,12 octadecadienoic acid.
Embodiment 3
A kind of recirculated water corrosion inhibiting and descaling agent, it includes following mass parts raw material: 15 parts of hydroxy ethylene diphosphonic acid sodium, butyl pregnancy
6 parts of base dibrominated ammonium, 5 parts of zinc chloride, 18 parts of aminotrimethylene sodium phosphate, 3 parts of benzotriazole, 5 parts of hydroxymethyl cellulose and
8 parts of 9,12 octadecadienoic acid.
Embodiment 4
A kind of recirculated water corrosion inhibiting and descaling agent, it is made of following mass parts raw material: 11 parts of hydroxy ethylene diphosphonic acid sodium, butyl six
4 parts of methyl dibrominated ammonium, 2 parts of zinc chloride, 13 parts of aminotrimethylene sodium phosphate, 2 parts of benzotriazole, 4 parts of hydroxymethyl cellulose
With 23 parts of 9,12 octadecadienoic acid.
Performance characterization
(1) corrosion mitigating effect of recirculated water corrosion inhibiting and descaling agent
Test water parameter: pH=8.38, conductivity=779 μ s/cm, calcium is hard=520.87mg/L, chloride ion=16.33 mg/L, bromine
Ion=8.07 mg/L, total alkali=651.50mg/L, sulfate radical=428.50 mg/L.
Test apparatus: II type rotary hanging plate corrosion tester of RCC-, copper lacing film, 5,2L beaker.
Test method: petrochemical industry water treatment agent assessment of performance standard SH2604.12-2001 are " at recirculated cooling water referring in
Reason anti-incrustation corrosion inhibitor assessment of performance standard ", the recirculated water inhibition resistance in 1.2 L of test water and embodiment 1 is added in No. 1 beaker
120 mg of recirculated water corrosion inhibiting and descaling agent in 1.2 L of test water and embodiment 2, No. 3 beakers are added in dirty 85 mg of agent, No. 2 beakers
90 mg of recirculated water corrosion inhibiting and descaling agent in 1.2 L of test water and embodiment 3 is added, 1.2 L of test water is added in No. 4 beakers
With 100 mg of recirculated water corrosion inhibiting and descaling agent in embodiment 4,1.2 L of test water is added in No. 5 beakers.Rate of corrosion/mma=3650
× weight loss/(test number of days × lacing film area × lacing film density), the rate of corrosion of measurement is referring to table 1.As shown in Table 1, this hair
The recirculated water corrosion inhibiting and descaling agent of bright offer has outstanding corrosion mitigating effect.
The corrosion mitigating effect of 1 recirculated water corrosion inhibiting and descaling agent of table
| Beaker | No. 1 | No. 2 | No. 3 | No. 4 | No. 5 |
| Rate of corrosion/mma | 0.0023 | 0.0015 | 0.0010 | 0.0020 | 0.025 |
(2) scale inhibition effect of recirculated water corrosion inhibiting and descaling agent
Test water: pH=8.38, conductivity=779 μ s/cm, chloride ion=16.33 mg/L bromide ion=8.07 mg/L, sulfuric acid
Root=428.50 mg/L, calcium is hard+and total alkali mg/L is as shown in table 2, test method: the recirculated water inhibition that embodiment 1 is configured to
Antisludging agent in 35 DEG C of temperature, turn 75r/min, put into recirculated cooling water, test period is 72 h, multiple referring in particular to middle petrochemical industry
Close anti-incrustation corrosion inhibitor technical requirements Q/SH0374-2010.The scale inhibition effect of measurement is referring to table 2.As shown in Table 2, the present invention provides
Recirculated water corrosion inhibiting and descaling agent have outstanding scale inhibition effect.
The scale inhibition effect of 2 recirculated water corrosion inhibiting and descaling agent of table
| Calcium is hard+total alkali mg/L | 1347 | 1826 | 1752 | 1539 | 1582 |
| Scale inhibition performance/% | 99.4 | 98.2 | 98.6 | 99.0 | 98.2 |
(3) bactericidal effect of recirculated water corrosion inhibiting and descaling agent
The measuring method of bactericidal property referring to production department of China Petrochemical Corporation and development division work out " cooling water analysis and
Test method " in " the static sterilization test of heterotroph " regulation, measurement bactericidal effect change over time, test result is shown in Table 3.
As shown in Table 3, recirculated water corrosion inhibiting and descaling agent provided by the invention has outstanding bactericidal effect.
The bactericidal effect of 3 recirculated water corrosion inhibiting and descaling agent of table
| Time | 1 day | 3 days | 7 days | 20 days |
| Sterilizing rate % | 99% | 99% | 99% | 97% |
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；Although ginseng
According to preferred embodiment, invention is explained in detail, it should be understood by those ordinary skilled in the art that: still can be with
It modifies to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from skill of the present invention
The spirit of art scheme should all cover within the scope of the technical scheme claimed by the invention.
Claims (4)
1. a kind of recirculated water corrosion inhibiting and descaling agent, which is characterized in that it includes following mass parts raw material: hydroxy ethylene diphosphonic acid sodium
6~15 parts, 2~6 parts of ammonium of butyl hexamethyl dibrominated, 1~5 part of zinc chloride, 10~18 parts of aminotrimethylene sodium phosphate, benzo
1~3 part of triazole, 0.5~5 part of hydroxymethyl cellulose and 9,8~30 parts of 12- octadecadienoic acid.
2. recirculated water corrosion inhibiting and descaling agent according to claim 1, which is characterized in that it includes following mass parts raw material: hydroxyl
8~12 parts of base ethylidene diphosphonic acid sodium, 3~4 parts of ammonium of butyl hexamethyl dibrominated, 2~4 parts of zinc chloride, aminotrimethylene phosphorus
13~17 parts of sour sodium, 1~3 part of benzotriazole, 2~4 parts of hydroxymethyl cellulose and 9,12~25 parts of 12- octadecadienoic acid.
3. recirculated water corrosion inhibiting and descaling agent according to claim 1 or 2, which is characterized in that it is by following mass parts raw material structure
At: 8~12 parts of hydroxy ethylene diphosphonic acid sodium, 3~4 parts of ammonium of butyl hexamethyl dibrominated, 2~4 parts of zinc chloride, amino trimethylene first
13~17 parts of base sodium phosphate, 1~3 part of benzotriazole, 2~4 parts of hydroxymethyl cellulose and 9,12- octadecadienoic acid 12~25
Part.
4. a kind of application method of the described in any item recirculated water corrosion inhibiting and descaling agents of claims 1 to 3, which is characterized in that it is wrapped
Include the step of 80~120 mg of recirculated water corrosion inhibiting and descaling agent is added in every 1 L recirculated water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045928.6A CN109052677A (en) | 2018-09-08 | 2018-09-08 | A kind of recirculated water corrosion inhibiting and descaling agent and its application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811045928.6A CN109052677A (en) | 2018-09-08 | 2018-09-08 | A kind of recirculated water corrosion inhibiting and descaling agent and its application method |
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| CN109052677A true CN109052677A (en) | 2018-12-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777637A (en) * | 2019-03-18 | 2019-05-21 | 廊坊一萍锅炉保养工程有限公司 | Plate-type heat-exchange unit boiler tubing environment-friendly cleaning agent |
| CN110304741A (en) * | 2019-06-21 | 2019-10-08 | 西安石油大油气科技有限公司 | A kind of bioactivation type long-acting solid scale remover and preparation method thereof |
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| CN110304741A (en) * | 2019-06-21 | 2019-10-08 | 西安石油大油气科技有限公司 | A kind of bioactivation type long-acting solid scale remover and preparation method thereof |
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Application publication date: 20181221 |