CN107619121A - A kind of non-phosphorus scale and corrosion inhibitor - Google Patents
A kind of non-phosphorus scale and corrosion inhibitor Download PDFInfo
- Publication number
- CN107619121A CN107619121A CN201711027020.8A CN201711027020A CN107619121A CN 107619121 A CN107619121 A CN 107619121A CN 201711027020 A CN201711027020 A CN 201711027020A CN 107619121 A CN107619121 A CN 107619121A
- Authority
- CN
- China
- Prior art keywords
- corrosion inhibitor
- weight
- scale
- poly
- phosphorus scale
- 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
Abstract
The invention discloses a kind of non-phosphorus scale and corrosion inhibitor, by weight, including following raw material：Poly-aspartate 15 20%, HPMA 6 15%, maleic acrylic copolymer 3 8%, the methyl propane sulfonic acid copolymer 3 8% of 2 acrylamide of acrylic acid 2, hydroxypropyl beta cyclodextrin 1 3%, remaining is water.The present invention enables to it to effectively play the function of scale inhibition and inhibition in 0~6 DEG C of low temperature and 60~80 DEG C of high temperature circulation, 100% can be reached to the scale inhibition performance of calcium carbonate under above-mentioned low temperature and high temperature water environment, and there is very strong dispersibility to iron oxide, can effectively prevent the corrosion of hardware.
Description
Technical field
The present invention relates to industrial circulating cooling water anti-incrustation corrosion inhibitor field, and in particular to a kind of non-phosphorus scale and corrosion inhibitor.
Background technology
In industrial circulating cooling water system, fouling and two subject matters that corrosion is influence system normal operation.It is cold
But the incrustation scale in water is typically made up of the slightly soluble salt such as calcium carbonate, calcium phosphate, calcium sulfate, calcium silicates, magnesium silicate, and these micromeritics are not
It is disconnected to grow up to form big crystal deposition on the heat transmission surface.It is exactly to add scale inhibition that fouling most effective way is controlled in circulation
Agent, antisludging agent by or chelating (complexing) water cationic, prevent itself and anionic reactive generation incrustation scale, or adsorb in nucleus table
Face, nucleus and other ions are separated so as to suppress nuclei growth；Or adsorb again on micromeritics, electric double layer is formed on its surface,
Mutually exclusive obstruction particulate contacts with each other and grown up.Second Problem present in recirculating cooling water system is exactly hardware
Corrosion.From it is thermodynamic (al) it is theoretical understand several common metal carbon steels, copper, stainless steel etc. be all in cooling water it is unstable, he
Most reach respective stable state by eroding at last, the method for the most frequently used control metal erosion at present is exactly into solution
Add corrosion inhibiter.Sustained release agent mainly by metal surface film forming or influence metal electrochemical process come anti-corrosion.Single is slow
Erosion agent or antisludging agent be both difficult to simultaneous corrosion and structural obstructions in solution system, there is that scale inhibitor efficiency is low, valency again
The problems such as lattice are expensive, troublesome in poeration.Therefore the synergistic effects between different scale inhibitor components are needed to improve medicament efficiency, expand
The big scope of application.
In recent years, one of active area is phosphonic acid corrosion inhibiting and descaling agent the most both at home and abroad.Although phosphonic acid corrosion mitigating effect is good,
Toxicity is low, cheap.But eutrophication pollution be present, easily tie phosphate incrustation scale, microorganism can be promoted to grow and breed, drawn
Play underdeposit corrosion and microbiologic(al) corrosion.While organic phosphine corrosion inhibiter causes body eutrophication, also have to copper and copper alloy
Certain aggressivity.
Therefore in terms of eutrophication and biodegradation, with the pay attention to day by day to environmental protection, above-mentioned corrosion inhibiting and descaling agent
It will necessarily be eliminated.
As Chinese patent CN101412568B discloses a kind of circulating water antisludging agent, it is made up of following several raw materials：PASP
2.5~2.8 parts of (poly-aspartate), 1~1.2 part of ATMP (ATMP), HPMA (HPMA)
1.2~1.4 parts of 2.4-2.6, AA/AMPS (acrylic acid and 2- acrylamide-2-methyl propane sulfonics copolymer), PAA (poly- third
Olefin(e) acid) 1.1~1.3 parts, 0.7~1.8 part of water.This circulating water antisludging agent contains phosphorus, and water body can be caused with the accumulation of dosage
Eutrophication accumulation, influence biodegradation, cause the secondary water pollution of the eutrophication of water body, still do not meet finally green
The theory that colour circle is protected.
The content of the invention
It is an object of the invention to provide a kind of non-phosphorus scale and corrosion inhibitor, the composition of the anti-incrustation corrosion inhibitor enable to its
Particularly effectively risen in 0~6 DEG C of low temperature and 60~80 DEG C of high temperature circulation cooling water system in 0~80 DEG C of temperature environment
To scale inhibition and the function of inhibition, 100% can be reached to the scale inhibition performance of calcium carbonate under above-mentioned low temperature and high temperature water environment, and
And there is very strong dispersibility to iron oxide, it can effectively prevent the corrosion of hardware.The other present invention can also be effective
Slow down the secondary pollution of circulating water quality.
The present invention is achieved through the following technical solutions：
A kind of non-phosphorus scale and corrosion inhibitor, by weight, including following raw material：Poly-aspartate 15~20%, the poly- horse of hydrolysis
Come acid anhydrides 6~15%, maleic acid-acrylic acid copolymer 3~8%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 3
~8%, hydroxypropyl-β-cyclodextrin 1-3%, remaining is water.
By weight, the weight of poly-aspartate and HPMA ratio is 1.8~3:1.
By weight, the weight of poly-aspartate and HPMA ratio is 2:1.
By weight, the weight of HPMA and hydroxypropyl-β-cyclodextrin ratio is 3:1.
By weight, in addition to BTA 1~3%.
By weight, it is made up of following raw material：Poly-aspartate 15~20%, HPMA 6~15%, Malaysia
Acid-acrylic copolymer 3~8%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 3~8%, hydroxy propyl-Beta-ring
Dextrin 1~3%, BTA 1~3%, remaining is water.
A kind of application of non-phosphorus scale and corrosion inhibitor in 0~80 DEG C of recirculated cooling water.
A kind of application of non-phosphorus scale and corrosion inhibitor in 0~6 DEG C of low-temperature circulating cooling water.
A kind of application of non-phosphorus scale and corrosion inhibitor in 60~80 DEG C of high temperature circulation cooling water.
Acted in the present invention by the coordinated of each scale inhibitor, and add hydroxypropyl-β-cyclodextrin, it is possible to increase
The chemical stability and cold and hot stability of whole anti-incrustation corrosion inhibitor.
The present invention is generally neutral meta-alkalescence (7~9) for water quality pH, and the requirement to hardness, basicity and salinity is not special
It is not high.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention uses without phosphorus preparation method, reduces the yield and discharge capacity of P elements；
2nd, the present invention has higher scale inhibition efficiency, to the scale inhibition performance of calcium carbonate up to 100%；
3rd, the present invention has very strong dispersibility to iron oxide, effectively prevents the corrosion of hardware；
4th, the present invention has green biodegradable, nontoxic chlorine-resistant heatproof, has higher calcium tolerance；
5th, the present invention has a variety of different concentration, suitable for different hardness and the water quality of basicity, high rigidity, high alkalinity,
It is outstanding in high pH, high concentration multiple system, and with inhibition and the dual effect of scale inhibition；
6th, the present invention is more notable for the scale inhibitor effect under the conditions of low temperature (0~6 DEG C) and high temperature (60~80 DEG C),
The corrosion of hardware can be effectively prevented with peptizaiton.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, the present invention is made
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1
A kind of non-phosphorus scale and corrosion inhibitor, it is following raw material by weight：Poly-aspartate 15%, HPMA
10%th, maleic acid-acrylic acid copolymer 5%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 1 0%, hydroxypropyl -
Beta-schardinger dextrin 2%, remaining is water.With corresponding with claim.
Embodiment 2
A kind of non-phosphorus scale and corrosion inhibitor, it is following raw material by weight：Poly-aspartate 15%, HPMA
8%th, maleic acid-acrylic acid copolymer 4%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 4%, hydroxy propyl-Beta -
Cyclodextrin 2%, BTA 2%, remaining is water.
Embodiment 3
A kind of non-phosphorus scale and corrosion inhibitor, it is following raw material by weight：Poly-aspartate 20%, HPMA
10%th, maleic acid-acrylic acid copolymer 5%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 5%, hydroxy propyl-Beta -
Cyclodextrin 2%, BTA 2%, remaining is water.
Embodiment 4
A kind of non-phosphorus scale and corrosion inhibitor, it is following raw material by weight：Poly-aspartate 15%, HPMA
6%th, maleic acid-acrylic acid copolymer 8%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 8%, hydroxy propyl-Beta -
Cyclodextrin 1%, BTA 1%, remaining is water.
Embodiment 5
A kind of non-phosphorus scale and corrosion inhibitor, it is following raw material by weight：Poly-aspartate 18%, HPMA
6%th, maleic acid-acrylic acid copolymer 5%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 5%, hydroxy propyl-Beta -
Cyclodextrin 3%, BTA 3%, remaining is water.
Embodiment 6
A kind of non-phosphorus scale and corrosion inhibitor, it is following raw material by weight：Poly-aspartate 18%, HPMA
10%th, maleic acid-acrylic acid copolymer 6%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 6%, hydroxy propyl-Beta -
Cyclodextrin 2%, BTA 2%, remaining is water.
To further illustrate beneficial effect caused by the performance and each component coordinated of the present invention, with embodiment 5
Based on proportioning, the ad hoc following comparative example of meter：
Comparative example 1
By weight, including following raw material：Poly-aspartate 18%, HPMA 6%, acrylic acid -2- propylene
Acid amides -2- methyl propane sulfonic acids copolymer 5%, hydroxypropyl-β-cyclodextrin 3%, BTA 3%, remaining is water.
Comparative example 2
By weight, including following raw material：Poly-aspartate 25%, HPMA 20%, maleic-acrylic acid
Copolymer 1 5%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 1 5%, hydroxypropyl-β-cyclodextrin 5%, remaining is
Water.
Comparative example 3
By weight, including following raw material：Poly-aspartate 18%, HPMA 6%, maleic-acrylic acid
Copolymer 5%, hydroxypropyl-β-cyclodextrin 3%, BTA 3%, remaining is water.
Comparative example 4
By weight, including following raw material：Poly-aspartate 18%, HPMA 6%, maleic-acrylic acid
Copolymer 5%, acrylic acid -2- acrylamide-2-methyl propane sulfonics copolymer 5%, BTA 3%, remaining is water.
Comparative example 5
By weight, including following raw material：Poly-aspartate 18%, maleic acid-acrylic acid copolymer 5%, acrylic acid -2-
Acrylamide-2-methyl propane sulfonic copolymer 5%, hydroxypropyl-β-cyclodextrin 3%, BTA 3%, remaining is water.
The non-phosphorus scale and corrosion inhibitor come is prepared into above-described embodiment 1-6 and comparative example 1-5, setting experimental condition is as follows：
Supplement water pH value be 7.5, temperature be respectively 5 ± 1 DEG C and 75 ± 1 DEG C, calcium firmly+total alkalinity is 800mg/L, be total to reference to the Chinese people
With state standard GB/T/T16632-2008 " the measure tosca methods of water treatment agent scale-inhibiting properties ", inhibition has been carried out respectively
Antisludging test, under same use condition, test corrosion-mitigation scale-inhibition rate result such as Tables 1 and 2.
The low-temperature circulating cooling water of table 1 (5 ± 1) DEG C
The high temperature circulation cooling water of table 2 (75 ± 1) DEG C
From Tables 1 and 2 it is recognised that the scale inhibition performance of embodiment in the present invention and sustained release rate are preferable, this can be illustrated
Scale inhibitor effect of the invention under the conditions of low temperature (0~6 DEG C) and high temperature (60~80 DEG C) is more notable, can effectively prevent metal
The corrosion of equipment.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (9)
- A kind of 1. non-phosphorus scale and corrosion inhibitor, it is characterised in that by weight, including following raw material：Poly-aspartate 15-20%, HPMA 6-15%, maleic acid-acrylic acid copolymer 3-8%, acrylic acid -2- acrylamide-2-methyl propane sulfonics Copolymer 3-8%, hydroxypropyl-β-cyclodextrin 1-3%, remaining is water.
- 2. non-phosphorus scale and corrosion inhibitor according to claim 1, it is characterised in that by weight, poly-aspartate and hydrolysis The weight ratio of HPMA is 1.8-3:1.
- 3. non-phosphorus scale and corrosion inhibitor according to claim 2, it is characterised in that by weight, poly-aspartate and hydrolysis The weight ratio of HPMA is 2:1.
- 4. according to the non-phosphorus scale and corrosion inhibitor described in claim any one of 1-3, it is characterised in that by weight, hydrolyze poly- horse The weight ratio for coming acid anhydrides and hydroxypropyl-β-cyclodextrin is 3:1.
- 5. non-phosphorus scale and corrosion inhibitor according to claim 1, it is characterised in that by weight, in addition to BTA 1 ~3%.
- 6. non-phosphorus scale and corrosion inhibitor according to claim 5, it is characterised in that by weight, be made up of following raw material：It is poly- Aspartic acid 15-20%, HPMA 6-15%, maleic acid-acrylic acid copolymer 3-8%, acrylic acid -2- acryloyls Amine -2- methyl propane sulfonic acid copolymers 3-8%, hydroxypropyl-β-cyclodextrin 1-3%, BTA 1~3%, remaining is water.
- A kind of 7. application of non-phosphorus scale and corrosion inhibitor in 0~80 DEG C of recirculated cooling water.
- A kind of 8. application according to claim 7, it is characterised in that low-temperature circulating of non-phosphorus scale and corrosion inhibitor at 0~6 DEG C Application in cooling water.
- 9. application according to claim 7, it is characterised in that a kind of non-phosphorus scale and corrosion inhibitor follows in 60~80 DEG C of high temperature Application in ring cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711027020.8A CN107619121A (en) | 2017-10-27 | 2017-10-27 | A kind of non-phosphorus scale and corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711027020.8A CN107619121A (en) | 2017-10-27 | 2017-10-27 | A kind of non-phosphorus scale and corrosion inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107619121A true CN107619121A (en) | 2018-01-23 |
Family
ID=61093173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711027020.8A Pending CN107619121A (en) | 2017-10-27 | 2017-10-27 | A kind of non-phosphorus scale and corrosion inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107619121A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109264878A (en) * | 2018-11-30 | 2019-01-25 | 攀枝花钢城集团瑞天安全环保有限公司 | Compound phosphate-free corrosion inhibition antisludging agent and preparation method thereof |
| CN111115855A (en) * | 2019-12-14 | 2020-05-08 | 嘉兴沃特泰科环保科技股份有限公司 | Non-phosphorus scale inhibitor for circulating water and preparation method and application thereof |
| CN111960556A (en) * | 2020-08-12 | 2020-11-20 | 江苏科利恩净水科技有限公司 | Phosphorus-free scale inhibitor for high-hardness water and preparation method thereof |
| CN112079450A (en) * | 2020-09-24 | 2020-12-15 | 德蓝水技术股份有限公司 | Fluorescent non-phosphorus scale inhibitor and preparation method thereof |
| CN112320976A (en) * | 2020-08-31 | 2021-02-05 | 嘉兴沃特泰科环保科技股份有限公司 | Phosphorus-free scale inhibitor for industrial circulating water and preparation method and application thereof |
| CN112778981A (en) * | 2019-11-11 | 2021-05-11 | 中国石油天然气股份有限公司 | Antifreezing solution and preparation method thereof |
| CN113716710A (en) * | 2021-10-11 | 2021-11-30 | 广州科宝水处理科技股份有限公司 | Low-temperature non-solidification phosphorus-free corrosion and scale inhibitor, preparation method thereof and scale inhibition method |
| CN114426337A (en) * | 2020-09-27 | 2022-05-03 | 中国石油化工股份有限公司 | Non-phosphorus composite corrosion inhibitor and application thereof |
| CN115057541A (en) * | 2022-07-13 | 2022-09-16 | 安徽贝迪环保科技有限公司 | Efficient scale and corrosion inhibitor for circulating water |
| CN115140852A (en) * | 2022-07-25 | 2022-10-04 | 天津大学 | Scale inhibitor for inhibiting generation of calcium carbonate scale in geothermal fluid on inner wall of geothermal wellbore |
| WO2022251449A1 (en) * | 2021-05-26 | 2022-12-01 | Bps Just Energy Technology, Llc | Scale inhibitor compositions and methods with supramolecular structures |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976414A (en) * | 1996-05-15 | 1999-11-02 | Nalco Chemical Company | Non-Phosphorus corrosion inhibitor program for air washer system |
| CN103253777A (en) * | 2012-02-20 | 2013-08-21 | 中国石油化工股份有限公司 | Composition used in scale-inhibition corrosion inhibitor, scale-inhibition corrosion inhibitor, and application thereof |
| CN103771598A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
| CN103771597A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
| CN103771596A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
| CN103771599A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor and application thereof as well as circulating water treatment method |
-
2017
- 2017-10-27 CN CN201711027020.8A patent/CN107619121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976414A (en) * | 1996-05-15 | 1999-11-02 | Nalco Chemical Company | Non-Phosphorus corrosion inhibitor program for air washer system |
| CN103253777A (en) * | 2012-02-20 | 2013-08-21 | 中国石油化工股份有限公司 | Composition used in scale-inhibition corrosion inhibitor, scale-inhibition corrosion inhibitor, and application thereof |
| CN103771598A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
| CN103771597A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
| CN103771596A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
| CN103771599A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor and application thereof as well as circulating water treatment method |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109264878A (en) * | 2018-11-30 | 2019-01-25 | 攀枝花钢城集团瑞天安全环保有限公司 | Compound phosphate-free corrosion inhibition antisludging agent and preparation method thereof |
| CN112778981A (en) * | 2019-11-11 | 2021-05-11 | 中国石油天然气股份有限公司 | Antifreezing solution and preparation method thereof |
| CN111115855A (en) * | 2019-12-14 | 2020-05-08 | 嘉兴沃特泰科环保科技股份有限公司 | Non-phosphorus scale inhibitor for circulating water and preparation method and application thereof |
| CN111960556A (en) * | 2020-08-12 | 2020-11-20 | 江苏科利恩净水科技有限公司 | Phosphorus-free scale inhibitor for high-hardness water and preparation method thereof |
| CN112320976A (en) * | 2020-08-31 | 2021-02-05 | 嘉兴沃特泰科环保科技股份有限公司 | Phosphorus-free scale inhibitor for industrial circulating water and preparation method and application thereof |
| CN112079450A (en) * | 2020-09-24 | 2020-12-15 | 德蓝水技术股份有限公司 | Fluorescent non-phosphorus scale inhibitor and preparation method thereof |
| CN114426337A (en) * | 2020-09-27 | 2022-05-03 | 中国石油化工股份有限公司 | Non-phosphorus composite corrosion inhibitor and application thereof |
| CN114426337B (en) * | 2020-09-27 | 2024-02-13 | 中国石油化工股份有限公司 | Phosphorus-free composite corrosion inhibitor and application thereof |
| WO2022251449A1 (en) * | 2021-05-26 | 2022-12-01 | Bps Just Energy Technology, Llc | Scale inhibitor compositions and methods with supramolecular structures |
| CN113716710A (en) * | 2021-10-11 | 2021-11-30 | 广州科宝水处理科技股份有限公司 | Low-temperature non-solidification phosphorus-free corrosion and scale inhibitor, preparation method thereof and scale inhibition method |
| CN113716710B (en) * | 2021-10-11 | 2023-12-08 | 广州科宝水处理科技股份有限公司 | Low-temperature non-solidification phosphorus-free corrosion and scale inhibitor, preparation method thereof and scale inhibition method |
| CN115057541A (en) * | 2022-07-13 | 2022-09-16 | 安徽贝迪环保科技有限公司 | Efficient scale and corrosion inhibitor for circulating water |
| CN115140852A (en) * | 2022-07-25 | 2022-10-04 | 天津大学 | Scale inhibitor for inhibiting generation of calcium carbonate scale in geothermal fluid on inner wall of geothermal wellbore |
| CN115140852B (en) * | 2022-07-25 | 2023-11-28 | 天津大学 | Scale inhibitor for inhibiting generation of calcium carbonate scale in geothermal fluid on inner wall of geothermal well bore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107619121A (en) | A kind of non-phosphorus scale and corrosion inhibitor | |
| CN101607766B (en) | Preparation of corrosion and scale inhibitor used for high alkaline high chlorine circulating cooling water | |
| CN101746903B (en) | Phosphorus-free composite water treatment agent | |
| CN103332797B (en) | Circulating cooling water non-phosphorus corrosion and scale inhibitor and application thereof | |
| CN108623020A (en) | A kind of novel corrosion-retarding antisludging agent and the preparation method and application thereof | |
| CN106809962A (en) | A kind of composite slow-corrosion scale resistor and its preparation method and application | |
| CN105461085A (en) | Non-phosphorus environmentally-friendly corrosion-inhibition scale-inhibition dispersion agent and preparation method and application thereof | |
| CN104591413A (en) | Corrosion and scale inhibitor for blast furnace closed-loop circulating water and preparation method of inhibitor | |
| CN104556427A (en) | Composite efficient corrosion and scale inhibitor for ammonia still water treatment | |
| CN103058399A (en) | Efficient alkyl ether carboxylate type dirt dispersion agent and application thereof | |
| CN103241846A (en) | Composite scale and corrosion inhibitor | |
| CN101519244A (en) | Compound scale inhibitor for treating recirculated cooling water and preparation method thereof | |
| CN107512784A (en) | A kind of corrosion inhibiting and descaling agent for organic alcohols refrigerating system and preparation method thereof | |
| CN105036370A (en) | Ultra-temperature circulating water scale inhibitor and preparation method thereof | |
| CN102718332A (en) | Scale dissolution and corrosion inhibition agent for industrial circulating water and preparation method | |
| CN105036365A (en) | Draught fan dedusting stripping scale inhibitor and preparation method thereof | |
| CN106587392A (en) | Water quality stabilization dispersant of blast furnace gas washing water circulation system and application thereof | |
| CN105060516B (en) | A kind of method of scale inhibition for coke-oven plant's blasting condensation high rigidity recirculated water | |
| CN104649422B (en) | A kind of composite scale-inhibiting corrosion inhibitor and preparation method who is applied to blast furnace closed circulating water system | |
| CN103739094A (en) | Scale inhibition and dispersion agent | |
| CN106277377A (en) | A kind of modified antisludging agent and preparation method thereof | |
| CN102936061A (en) | Scale and corrosion inhibitor | |
| CN100469715C (en) | Composite water treating agent for industrial circulation cooling water | |
| CN107200408A (en) | A kind of compound slow corrosion scale inhibition bactericide and application | |
| CN103922491A (en) | Energy-saving scale inhibiting and removing anticorrosion compound medicament for steam boiler and preparation method of medicament |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180123 |
|
| RJ01 | Rejection of invention patent application after publication |