CN107892398A - Recirculated water closed system corrosion inhibiter and its preparation and application method - Google Patents
Recirculated water closed system corrosion inhibiter and its preparation and application method Download PDFInfo
- Publication number
- CN107892398A CN107892398A CN201711308801.4A CN201711308801A CN107892398A CN 107892398 A CN107892398 A CN 107892398A CN 201711308801 A CN201711308801 A CN 201711308801A CN 107892398 A CN107892398 A CN 107892398A
- Authority
- CN
- China
- Prior art keywords
- corrosion inhibiter
- reactor
- copper inhibitor
- corrosion
- added
- Prior art date
- 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.)
- Pending
Links
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
- C02F5/105—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 combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
-
- 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
- C02F2303/08—Corrosion inhibition
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
A kind of recirculated water closed system corrosion inhibiter and its preparation and application method, the constituent and mass percent for forming corrosion inhibiter are：Silicate 30 50%, natural dispersive agent 10 15%, carboxylate 5 15%, copper inhibitor 1 3%, surplus is soft water；Its preparation method includes preparing copper inhibitor, toward quantitative inorganic silicate is pumped into reactor or organosilicate is stirred to whole dissolvings, toward the step such as the agent of addition natural dispersive, carboxylate, copper inhibitor in reactor, finally obtains finished product corrosion inhibiter.The corrosion inhibiter has stronger chemisorbed in metal surface, has slowed down anode and cathode reaction, alleviates the corrosion of soft water system material, and corrosion inhibition is strong, effective time length, forms compound Membrane protective system from corrosion.The corrosion inhibiter preparation method science is notable for steel plant's water treatment efficiency.
Description
Technical field
The present invention relates to the water technology in chemical field, more particularly to industrial and mining enterprises' especially iron and steel enterprise's recirculated water
The corrosion inhibiter and its preparation and application method of closed system.
Background technology
Industrial colling accounts for the 60%~80% of industrial water total amount, therefore the recycling of industrial colling is work
Most effective, the most important approach of industry water saving.Industry cooling water circulation has two ways i.e. open type and closed.Closed water
Amount loss very little, has ready conditions and makees cooling medium using high-quality water (soft water), so as to avoid scaling, so in recent years
Come soft water system it is more and more extensive be applied to blast furnace, steelmaking converter drum, continuous cast mold, boiler water of electric power plant, in
Entreat the fields such as conditioned water.Because thermic load is very high, to avoid fouling as far as possible, Closed Cycle soft water system has obtained increasingly
It is widely applied.
Soft water closed circulating system is using softening water circulation, and the hardness of water is low, and in the process of running, heat exchanger surface will not
Incrustation scale is formed, this just fundamentally avoids heat exchanger surface scale formation, but because no dirty layer is protected, corrosion aggravates.
Other sealing and circulating water oxygen is not easy to separate out, and circulating water temperature is high, has aggravated the oxygen concentration polarization corrosion of dissolved oxygen.So
Special soft water corrosion inhibiter must be added in closed loop sofe water system operation, just can guarantee that heat transmission equipment is not corroded.
Currently used corrosion inhibiter has series of phosphate and the class of oxidisability corrosion inhibiter two.Series of phosphate corrosion inhibiter phosphorus contains
Amount is high, easily causes body eutrophication；And aoxidize
Property corrosion inhibiter is typically harmful to human body and environment, and dosage is big, and its use range is restricted.With people's environmental consciousness
Strengthen, it is necessary to develop more green, more environmentally friendly, more excellent performance corrosion inhibiter.
The content of the invention
In order to solve the problems, such as prior art soft water system corrosion, conventional corrosion inhibiter series of phosphate corrosion inhibiter is overcome
Phosphorus content is high, easily causes body eutrophication；And oxidisability corrosion inhibiter is typically harmful to human body and environment, dosage is big, and it is used
The defects of scope is restricted, the present invention one are to provide one kind and avoid closed system from corroding, green, economic, environmental protection, corrosion inhibition
It is excellent, it is biodegradable, less toxic, recirculated water closed system corrosion inhibiter；Two are to provide a kind of inhibition of recirculated water closed system
The preparation method of agent；Three are to provide a kind of application process of the corrosion inhibiter of recirculated water closed system.
Realize that above-mentioned purpose uses following technical scheme：
A kind of recirculated water closed system corrosion inhibiter, the constituent and mass percent for forming the corrosion inhibiter are：Silicate 30-
50%, natural dispersive agent 10-15%, carboxylate 5-15%, copper inhibitor 1-3%, surplus is soft water；
Wherein described silicate is inorganic silicate or organosilicate, and described carboxylate uses soap or N- acyl groups
Aminocarboxylate, copper inhibitor use BTA or thin base benzothiazole.
Preferably
Described natural dispersive agent uses sodium gluconate or sodium lignin sulfonate or tannin.
Described copper inhibitor is the liquid obtained after dissolving BTA or thin base benzothiazole compounding with lytic agent.
Described lytic agent is diluted alkaline or isopropanol.
A kind of preparation method of recirculated water closed system corrosion inhibiter, including reactor, pump, the diluted alkaline used in preparation process
Or isopropanol, comprise the following steps：
Step 1：Prepare copper inhibitor
Check whether reactor is clean, close each valve；
According to the weight of prepared copper inhibitor, first toward lytic agent diluted alkaline or isopropanol 40-70% is added in reactor, so
BTA or thin base benzothiazole 30-60% are added afterwards, are stirred to whole dissolvings, are obtained copper inhibitor, it is standby；
Step 2：
According to the weight of corrosion inhibiter, soft water is pumped into reactor with pump, inorganic silicate or organosilicon are added toward reactor is interior
Hydrochlorate 30-50%, stir to whole dissolvings, to reactor in be visible by naked eyes not tolerant；
Step 3：
According to the weight of corrosion inhibiter, natural dispersive agent 10-15% is added toward reactor is interior, is stirred to whole dissolvings, to reactor
It is visible by naked eyes not tolerant.
Step 4：
According to the weight of corrosion inhibiter, carboxylate 5-15% is added toward reactor is interior, is stirred；
Step 5：
According to the weight of corrosion inhibiter, toward reactor in add the copper inhibitor 1-3% dissolved, stir, obtain finished product
Corrosion inhibiter；
Step 6：
Sampling detection finished product corrosion inhibiter, detect qualified rear blowing, labelling, storage.
Preferably
The preparation method of described recirculated water closed system corrosion inhibiter, including used in preparation process reactor, pump, diluted alkaline or
Isopropanol, its preparation method include;
Prepare copper inhibitor：
Check whether reactor is clean, close each valve, according to the weight of prepared copper inhibitor（Prepare 100 kilograms）Will be dilute
Alkali 60% adds reactor, and thin base benzothiazole 40% is added in reactor, stirs to whole dissolvings, obtains copper inhibitor, standby
With；
Prepare finished product corrosion inhibiter：
Check whether reactor is clean, according to the weight of prepared corrosion inhibiter, with pump toward in reactor plus soft water 30%, once
Inorganic silicate 42% is added, natural dispersive agent 12%, carboxylate 15%, copper inhibitor 1%, is stirred to whole dissolvings, no naked eyes can
See not tolerant, obtain finished product corrosion inhibiter；
Finished product corrosion inhibiter is detected, detects qualified labelling, storage.
A kind of application of the corrosion inhibiter of recirculated water closed system, the closed system corrosion inhibiter are used for steel plant, and basis is thrown
Dosage is added by the 100ppm for possessing water, is added the inhibition dosage day and is added by the 50ppm of rate of water make-up；
Concrete operation method is：
Concrete operation method is：
Monthly carbon steel, copper lacing film are linked into system in the 1st, monitor the whole month,
The end of month takes lacing film from system, without obvious spot corrosion situation, send laboratory to be weighed by processing；
Carbon steel lacing film corrosion rate is 0.027-0.053, and copper lacing film corrosion rate is 0.0015-0.0030.
Using above-mentioned technical proposal, compared with prior art, recirculated water closed system corrosion inhibiter of the present invention is mainly used in close
Close in system, the corrosion inhibiter has stronger chemisorbed in metal surface, has slowed down anode and cathode reaction, alleviates soft water system
The corrosion of commons matter, corrosion inhibition is strong, effective time length, forms compound Membrane protective system from corrosion.
And the present invention has good complexing power in water to iron ion, copper ion etc., especially to ferric ion
Chelating ability it is more prominent, and have good activation to many salts of these ions.With biodegradable and
The characteristics of dispersive property, pollution-free, anti-spot corrosion etc. are excellent, the uniformity of corrosion inhibition film can be ensured well.It is a kind of environment-friendly type
Soft water corrosion inhibiter, ensure that the effective utilization and safe handling of soft water corrosion inhibiter, have a extensive future.
The preparing raw material of the present invention is cheap, economic, low toxicity, preparation method science, on environment without influence.Usage amount
Low, corrosion rate is low.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is described in further details.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The fixed present invention.
Recirculated water closed system corrosion inhibiter embodiment
Embodiment 1：
Corrosion inhibiter raw material percentage by weight meter, soft water 30%, organosilicate 42%, natural dispersive agent 12%, soap 15%,
Copper inhibitor 1%.
According to the weight of copper inhibitor（Prepare 100 kilograms）, first toward 40 kilograms of lytic agent diluted alkaline is added in reactor, so
Add afterwards and dredge 60 kilograms of base benzothiazole, stir to whole dissolvings, obtain copper inhibitor, it is standby.
Check whether reactor is clean, with percentage by weight meter, with pump toward upper soft water 30% in reactor, toward in reactor
Organic silicic acid salt 42%, sodium gluconate 12%, soap 15%, copper inhibitor 1% are added successively（Above-mentioned mixture is good, standby
With）.Stirring is visible by naked eyes not tolerant, detection, blowing to whole dissolvings.
Embodiment 2：
Corrosion inhibiter raw material percentage by weight meter, soft water 25%, organosilicate 50%, natural dispersive agent 10%, soap 12%,
Copper inhibitor 3%.
According to the weight of copper inhibitor（Prepare 100 kilograms）, first toward 50 kilograms of lytic agent diluted alkaline is added in reactor, so
Add afterwards and dredge 50 kilograms of base benzothiazole, stir to whole dissolvings, obtain copper inhibitor, it is standby.
Check whether reactor is clean, with percentage by weight meter, with soft water 25% on pump, adds organic silicic acid salt successively
50%, sodium lignin sulfonate 10%, N- acyl aminos carboxylate 12%, copper inhibitor 3%（Above-mentioned mixture is good, standby）.Stir to complete
Portion dissolves, and is visible by naked eyes not tolerant, detection, blowing.
Embodiment 3：
Corrosion inhibiter raw material percentage by weight meter, soft water 43%, organosilicate 38%, natural dispersive agent 10%, soap 8%,
Copper inhibitor 1%.
According to the weight of copper inhibitor（Prepare 100 kilograms）, first toward 70 kilograms of lytic agent diluted alkaline is added in reactor, so
Add afterwards and dredge 30 kilograms of base benzothiazole, stir to whole dissolvings, obtain copper inhibitor, it is standby.
Check whether reactor is clean, with percentage by weight meter, with soft water 43% on pump, adds organosilicate successively
38%, sodium gluconate 10%, N- acyl aminos carboxylate 15%, copper inhibitor 1%（Above-mentioned mixture is good, standby）.Stir to whole
Dissolving, it is visible by naked eyes not tolerant, detection, blowing.
Embodiment 5：
Corrosion inhibiter raw material percentage by weight meter, soft water 22%, inorganic silicate 50%, natural dispersive agent 15%, N- acyl amino carboxylics
Hydrochlorate 11%, copper inhibitor 2%.
According to the weight of copper inhibitor（Prepare 100 kilograms）, first toward 55 kilograms of lytic agent diluted alkaline is added in reactor, so
Add afterwards and dredge 45 kilograms of base benzothiazole, stir to whole dissolvings, obtain copper inhibitor, it is standby.
Check whether reactor is clean, with soft water 22% on pump, add inorganic silicate 50% successively, sodium gluconate 15%,
N- acyl aminos carboxylate 11%, copper inhibitor 3%（Above-mentioned mixture is good, standby）.Stirring is visible by naked eyes and not allowed to whole dissolvings
Thing, detection, blowing.
The water of the present invention for dissolving, preparing sustained release agent must be soft water.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. a kind of recirculated water closed system corrosion inhibiter, it is characterised in that form the constituent and quality percentage of the corrosion inhibiter
Than for：Silicate 30-50%, natural dispersive agent 10-15%, carboxylate 5-15%, copper inhibitor 1-3%, surplus is soft water；
Wherein described silicate is inorganic silicate or organosilicate, and described carboxylate uses soap or N- acyl groups
Aminocarboxylate, copper inhibitor use BTA or thin base benzothiazole.
2. recirculated water closed system corrosion inhibiter according to claim 1, it is characterised in that described natural dispersive agent uses
Sodium gluconate or sodium lignin sulfonate or tannin.
3. recirculated water closed system corrosion inhibiter according to claim 1, it is characterised in that described copper inhibitor is with molten
The liquid obtained after solution agent dissolving BTA or thin base benzothiazole compounding.
4. recirculated water closed system corrosion inhibiter according to claim 3, it is characterised in that described lytic agent be diluted alkaline or
Isopropanol.
5. the preparation method of recirculated water closed system corrosion inhibiter as claimed in claim 1, including used in preparation process anti-
Answer kettle, pump, diluted alkaline or isopropanol, it is characterised in that comprise the following steps：
Step 1：Prepare copper inhibitor
Check whether reactor is clean, close each valve；
According to the weight of prepared copper inhibitor, first toward lytic agent diluted alkaline or isopropanol 40-70% is added in reactor, so
BTA or thin base benzothiazole 30-60% are added afterwards, are stirred to whole dissolvings, are obtained copper inhibitor, it is standby；
Step 2：
According to the weight of corrosion inhibiter, soft water is pumped into reactor with pump, inorganic silicate or organosilicon are added toward reactor is interior
Hydrochlorate 30-50%, stir to whole dissolvings, to reactor in be visible by naked eyes not tolerant；
Step 3：
According to the weight of corrosion inhibiter, natural dispersive agent 10-15% is added toward reactor is interior, is stirred to whole dissolvings, to reactor
It is visible by naked eyes not tolerant；
Step 4：
According to the weight of corrosion inhibiter, carboxylate 5-15% is added toward reactor is interior, is stirred；
Step 5：
According to the weight of corrosion inhibiter, toward reactor in add the copper inhibitor 1-3% dissolved, stir, obtain finished product
Corrosion inhibiter；
Step 6：
Sampling detection finished product corrosion inhibiter, detect qualified rear blowing, labelling, storage.
6. the preparation method of recirculated water closed system corrosion inhibiter according to claim 5, including used in preparation process
Reactor, pump, diluted alkaline or isopropanol, it is characterised in that its preparation method includes;
Prepare copper inhibitor：
Check whether reactor is clean, close each valve, diluted alkaline 60% is added into reaction according to the weight of prepared copper inhibitor
Kettle, thin base benzothiazole 40% is added in reactor, stirs to whole dissolvings, obtains copper inhibitor, it is standby；
Prepare finished product corrosion inhibiter：
Check whether reactor is clean, according to the weight of prepared corrosion inhibiter, with pump toward in reactor plus soft water 30%, successively
Inorganic silicate 42% is added, natural dispersive agent 12%, carboxylate 15%, copper inhibitor 1%, is stirred to whole dissolvings, no naked eyes can
See not tolerant, obtain finished product corrosion inhibiter；
Finished product corrosion inhibiter is detected, detects qualified labelling, storage.
7. the application of the corrosion inhibiter of a kind of recirculated water closed system as described in claim 1 or 5, it is characterised in that described close
Close system soft water corrosion inhibiter and be used for steel plant, basic dosage is added by the 100ppm for possessing water, adds the corrosion inhibiter day
Amount is added by the 50ppm of rate of water make-up；
Concrete operation method is：
Monthly carbon steel, copper lacing film are linked into system in the 1st, monitor the whole month,
The end of month takes lacing film from system, without obvious spot corrosion situation, send laboratory to be weighed by processing；
Carbon steel lacing film corrosion rate is 0.027-0.053, and copper lacing film corrosion rate is 0.0015-0.0030.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308801.4A CN107892398A (en) | 2017-12-11 | 2017-12-11 | Recirculated water closed system corrosion inhibiter and its preparation and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308801.4A CN107892398A (en) | 2017-12-11 | 2017-12-11 | Recirculated water closed system corrosion inhibiter and its preparation and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107892398A true CN107892398A (en) | 2018-04-10 |
Family
ID=61807508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308801.4A Pending CN107892398A (en) | 2017-12-11 | 2017-12-11 | Recirculated water closed system corrosion inhibiter and its preparation and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107892398A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204065A (en) * | 2019-07-05 | 2019-09-06 | 武汉金坡环保科技有限公司 | A kind of soft water corrosion inhibiter |
| CN110318060A (en) * | 2019-08-15 | 2019-10-11 | 邢台通利光缆材料科技有限公司 | A kind of phosphoric acid cleaning solution corrosion inhibiter |
| CN111235580A (en) * | 2019-12-25 | 2020-06-05 | 乌鲁木齐市科发展精细化工有限公司 | Composite closed circulating water phosphorus-free corrosion inhibitor and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050053A (en) * | 1989-09-05 | 1991-03-20 | 冶金工业部北京钢铁设计研究总院 | The Si series corrosion inhibitor of closed cycle treatment of cooling water |
| WO2001036714A1 (en) * | 1999-11-12 | 2001-05-25 | Yasuo Fukutani | Rust preventive |
| CN102936727A (en) * | 2012-11-27 | 2013-02-20 | 唐山金沙水处理有限公司 | Corrosion inhibitor for closed system |
| CN104846380A (en) * | 2015-05-06 | 2015-08-19 | 威海翔宇环保科技股份有限公司 | Corrosion inhibitor applied to diesel engine circulating cooling water system |
| CN105540879A (en) * | 2016-02-04 | 2016-05-04 | 江苏盛世水业有限公司 | High-efficiency corrosion-inhibition dispersing agent for soft water closed-cycle cooling water system |
| CN106398679A (en) * | 2016-09-05 | 2017-02-15 | 四川省威尔敦化工有限公司 | Acidizing corrosion inhibitor used in self-diverting acid system as well as preparation method and application thereof |
-
2017
- 2017-12-11 CN CN201711308801.4A patent/CN107892398A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050053A (en) * | 1989-09-05 | 1991-03-20 | 冶金工业部北京钢铁设计研究总院 | The Si series corrosion inhibitor of closed cycle treatment of cooling water |
| WO2001036714A1 (en) * | 1999-11-12 | 2001-05-25 | Yasuo Fukutani | Rust preventive |
| CN102936727A (en) * | 2012-11-27 | 2013-02-20 | 唐山金沙水处理有限公司 | Corrosion inhibitor for closed system |
| CN104846380A (en) * | 2015-05-06 | 2015-08-19 | 威海翔宇环保科技股份有限公司 | Corrosion inhibitor applied to diesel engine circulating cooling water system |
| CN105540879A (en) * | 2016-02-04 | 2016-05-04 | 江苏盛世水业有限公司 | High-efficiency corrosion-inhibition dispersing agent for soft water closed-cycle cooling water system |
| CN106398679A (en) * | 2016-09-05 | 2017-02-15 | 四川省威尔敦化工有限公司 | Acidizing corrosion inhibitor used in self-diverting acid system as well as preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘鸿亮: "《湖泊富营养化控制》", 30 June 2006, 中国环境科学出版社 * |
| 范树清等: "《金属防锈及其试验方法》", 31 March 1989, 机械工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204065A (en) * | 2019-07-05 | 2019-09-06 | 武汉金坡环保科技有限公司 | A kind of soft water corrosion inhibiter |
| CN110318060A (en) * | 2019-08-15 | 2019-10-11 | 邢台通利光缆材料科技有限公司 | A kind of phosphoric acid cleaning solution corrosion inhibiter |
| CN111235580A (en) * | 2019-12-25 | 2020-06-05 | 乌鲁木齐市科发展精细化工有限公司 | Composite closed circulating water phosphorus-free corrosion inhibitor and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100579637C (en) | Scale inhibitor and preparation for reverse osmosis membrane | |
| CN103466814B (en) | High temperature resisting composite water treatment agent and preparation method thereof | |
| CN104058511A (en) | Non-phosphorus composite corrosion and scale inhibitor used for circulating water | |
| CN107892398A (en) | Recirculated water closed system corrosion inhibiter and its preparation and application method | |
| CN102418103B (en) | Chemical for cleaning boiler | |
| CN105036363B (en) | A kind of composite corrosion inhibitor of suitable demineralized water and preparation method | |
| CN107777789A (en) | Low-phosphor efficient anti-incrustation corrosion inhibitor for circulating water treatment and preparation method thereof | |
| CN108017162A (en) | Non-Phosphorus composite anti incrustation eorrosion snhibiter and preparation method thereof | |
| CN105481116A (en) | Circulating cooling water corrosion and scale inhibitor and preparation method thereof | |
| CN104372362B (en) | Aluminum alkali-washing corrosion inhibitor, and preparation method and application thereof | |
| CN103553219B (en) | Preparation method and application of corrosion and scale inhibitor for ethylene glycol sealed circulating water | |
| CN110143675B (en) | Phosphorus-free pre-filming agent for industrial circulating cooling water system and preparation method thereof | |
| CN103265126B (en) | Non-phosphorus environment-friendly softening water corrosion inhibitor | |
| CN102897925A (en) | Corrosion and scale inhibitor | |
| CN102718332A (en) | Scale dissolution and corrosion inhibition agent for industrial circulating water and preparation method | |
| CN102557277A (en) | Phosphorus-free composite water treatment agent and preparation method thereof | |
| CN104528966B (en) | A kind of corrosion-proofing and antisludging method of aluminium heat-exchange device | |
| CN103553218B (en) | A kind of composite corrosion inhibitor | |
| CN110158094A (en) | A kind of formula and preparation method of the without phosphorus carbon steel corrosion inhibitor of composite efficient | |
| CN104140162A (en) | Non-phosphorus scale and corrosion inhibitor employing seawater as circulating cooling water, and preparation method thereof | |
| CN104843878A (en) | Environment-friendly scale and corrosion inhibitor | |
| CN104528960B (en) | A kind of high efficiency corrosion inhibiting scale retardant | |
| CN103214107A (en) | Silicate and polyamidoamine composite and environment-friendly corrosion inhibitor applied to deionized water circulating cooling system | |
| CN110357278A (en) | A kind of alkaline corrosion inhibitor and its preparation method and application | |
| CN109133388A (en) | A kind of open cooling water system compound water process stabilizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180410 |