CN106699598B - A kind of water soluble disperse antisludging agent and its application - Google Patents
A kind of water soluble disperse antisludging agent and its application Download PDFInfo
- Publication number
- CN106699598B CN106699598B CN201611025391.8A CN201611025391A CN106699598B CN 106699598 B CN106699598 B CN 106699598B CN 201611025391 A CN201611025391 A CN 201611025391A CN 106699598 B CN106699598 B CN 106699598B
- Authority
- CN
- China
- Prior art keywords
- water soluble
- component
- amide
- antisludging agent
- soluble disperse
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
Abstract
The invention discloses a kind of water soluble disperse antisludging agent and its applications in production device for acrylic nitrile.The water soluble disperse antisludging agent includes component A and component B, component A is the polymer of sub- amide and/or amide, component B is p-tert-Butylcatechol, N, and one of N- diethyl hydroxylamine and N- isopropylhydroxyla or a variety of, wherein the mass ratio of component A and component B is 10~50:1~10.Using water soluble disperse antisludging agent of the invention, the dirt that free radical polymerization and dispersion have been formed can be effectively inhibited, it is evenly dispersed in dirt in water phase, so that dirt be avoided to be precipitated in production device for acrylic nitrile, is able to extend the production run period of device.
Description
Technical field
The invention belongs to acrylonitrile process field, more particularly to a kind of production device for acrylic nitrile (such as recovery tower and four
Imitate vapo(u)rization system) water soluble disperse antisludging agent and its application.
Background technique
Acrylonitrile (AN) is the important monomer in organic synthesis industry.Since the double bond on its structural formula makes chemical property
Compare active, it may occur that the chemical reaction such as autohemagglutination, copolymerization, hydrolysis.In the process of production and processing, due to the hair of acrylonitrile polymerization
It is raw, on the one hand, product yield is caused to decline；On the other hand, polymer deposits cause heat exchanger, tower tray and technique in system
The obstruction of pipeline.
Currently, the blocking of acrylonitrile reactor aftercooler, recycling tower tray floor and reboiler fouling, four-effect evaporation unit polymer
The problems such as more is the principal element for influencing acrylonitrile installation long-term operation.Said units and equipment blocking will cause material damage
It loses, device parking and safety and environmental protection problem seriously affect and restrict the long period safe and stable operation of acrylonitrile installation.
Hydroquinone is generallyd use in production device for acrylic nitrile as polymerization inhibitor, although which has certain polymerization inhibitor
Effect, but efficiency is lower, not can effectively stop the generation of polymerization, substantially reduces the operation cycle of device.
Summary of the invention
Place in order to overcome the shortcomings in the prior art, the present invention provides a kind of water soluble disperse antisludging agent and its third
Application in alkene nitrile process units.Using water soluble disperse antisludging agent of the invention, free radical polymerization can be effectively inhibited, together
When with excellent divergent function, be evenly dispersed in dirt in material, to avoid dirt in production device for acrylic nitrile
It is precipitated, is able to extend the production run period of device.
Water soluble disperse antisludging agent of the invention, including component A and component B, wherein component A is sub- amide and/or amide
Polymer, component B be p-tert-Butylcatechol, N, one of N- diethyl hydroxylamine and N- isopropylhydroxyla or a variety of；
Wherein the mass ratio of component A and component B is 10~50:1~10；Preferably 20~40:6~10.
In water soluble disperse antisludging agent of the invention, component A be polyisobutene Asia amide, polyisobutene Ding Erya amide,
One of copolymer of tall oil and amide is a variety of.
In water soluble disperse antisludging agent of the invention, the molecular weight of component A is 600000~6000000, preferably
1000000~4000000, further preferably 1200000~3000000.
In water soluble disperse antisludging agent of the invention, component A is preferably the copolymer of tall oil and amide or is Carvedilol
The copolymer and polyisobutene Asia amide of oil and amide, component B is preferably N- isopropylhydroxyla.Component A is tall oil and amide
Copolymer and polyisobutene Asia amide when, the mass ratio of the copolymer of tall oil and amide and polyisobutene Asia amide is 1:1
~5:1.
In water soluble disperse antisludging agent of the invention, in the copolymer of the tall oil and amide, amide can be acyl
It is one or more in aminated compounds, preferably formamide, N- methylacetamide and N- ethyl acetamide, further preferably first
Amide.
The present invention also provides a kind of application of water soluble disperse antisludging agent in production device for acrylic nitrile, including this is sent out
Bright water soluble disperse antisludging agent is added in the liquid phase of production device for acrylic nitrile, and addition mass concentration is 10~200ppm.
Water soluble disperse antisludging agent of the present invention is in the application in production device for acrylic nitrile, by water soluble disperse of the invention
Antisludging agent be preferably added to absorber portion, exhausting section, evaporator, heat exchanger, reboiler, desorption device etc. be easy to appear fouling position and/
Or its upstream, preferably on-line continuous are injected.
Solvent, preferably desalted water can be added in water soluble disperse antisludging agent of the present invention.
The present invention is obtained on the principle Research foundation of dirt formation in production device for acrylic nitrile.Acrylonitrile process
Device is mainly made of processes such as reaction, chilling, absorption, recycling, purification, four-effect evaporations, and production device for acrylic nitrile is normally being given birth to
The generation of some polymerization reactions is frequently accompanied by production, wherein acrylonitrile autohemagglutination or it is other as hydrogen cyanide, methacrylaldehyde, acrylic acid,
The polymerization meeting that the byproducts of reaction such as acrylamide generate is so that there are scale problems in system.In addition, the corrosion generated in system
By-product, catalyst decompose, the improper use of defoaming agent and pH control shakiness etc., can acceleration system polymer generation and dirt
The deposition of object.These dirts occur in the form of flake or crystalline polymer mostly.The generation of dirt can shorten tower, reboiler
With cycles of operation of the equipment such as heat exchanger and reduce production efficiency.In general, recovery tower, stripper, absorption tower and decyanation tower
Four-effect evaporator system fouling most serious.Clear up the costly of these dirts, it is sometimes desirable to which device parking causes very big to production
Economic loss.
It is generally believed that the mechanism that production device for acrylic nitrile dirt generates is as follows:
The activity of acrylonitrile is quite high, and spontaneous polymerization is easily generated under heating and situation containing iron part, this is poly-
Closing reaction is completing via the approach of radical chain reaction.Radical chain reaction successively includes three steps: chain initiation reaction, chain
Reaction of propagation and chain termination reaction.In chain initiating stage, if higher temperature contact metal (such as equipment surface or corrosion by-product
Object) it can be catalyzed generation free radical, these free radicals are referred to as chain initiator, polymerization reaction process can be accelerated by two ways,
Depending on whether there is oxygen or peroxide in medium.
If there is oxygen or peroxide, chain initiator, which will rapidly be reacted with oxygen, generates peroxylradicals；Peroxide
Changing free radical further will generate more free radicals with monomer reaction.The chain growth that this oxygen participates in is commonly known as
Auto-oxidation reaction.
In the absence of oxygen, chain reaction initiator and monomer reaction generate new free radical, which can constantly carry out,
It is combined with more monomers, until chain reaction is terminated.It is raw that chain termination reaction usually passes through the reaction between living radical
Reach at not having active molecule.
Water soluble disperse antisludging agent of the present invention can be used alone, and can also be applied in combination with other anti-fouling agents, it is described its
Its anti-fouling agent can be one of dispersing agent, polymerization inhibitor, corrosion inhibitor, defoaming agent etc. or a variety of.
Water soluble disperse antisludging agent of the present invention can effectively inhibit the dirt that free radical polymerization and dispersion have been formed, can
So that dirt is evenly dispersed in water phase, so that dirt be avoided to be precipitated in equipment in heat exchanger, tower etc., reach extension device
The production run period.
Water soluble disperse antisludging agent of the invention does not pollute environment and downstream product, and uses easy, safety and environmental protection.
Therefore the present invention can bring significant economic benefit and social benefit for acrylonitrile installation.
Specific embodiment
Water soluble disperse antisludging agent of the invention is described in detail below with reference to embodiment, but protection of the invention
Range is not limited to embodiment.
Embodiment 1-8 is the composition and ratio of production device for acrylic nitrile water soluble disperse antisludging agent, comparative example 2 and implementation
Example 9-16 is the application method of comparative example 1 and embodiment 1-8 dispersing scale inhibitor.
1g acrylonitrile installation dirt sample is respectively taken, is put into conical tubes after drying grinding, 100mL deionized water is added, then
It uniformly shakes 2 minutes, preliminary mixture is made.The water soluble disperse antisludging agent of different compositions and proportion is separately added into again above-mentioned
In preliminary mixture, different numbers is indicated respectively, after reacting a period of time, measures the weight of remaining acrylonitrile installation dirt sample.
The composition and ratio of water soluble disperse antisludging agent used in comparative example 1 and 1-8 of the embodiment of the present invention are shown in Table 1.
1 comparative example 1 of table and embodiment 1-8 water soluble disperse antisludging agent composition and ratio (data are mass fraction in table)
Note:
* polyisobutene Ding Erya amide, the molecular weight of polyisobutene Ding Erya amide used in embodiment 1,4 and 7 is about
2000000；
The molecular weight of * polyisobutene Asia amide, polyisobutene Asia amide used in embodiment 2,3 and 5 is about
2000000；
The copolymer of * * tall oil and amide, tall oil that embodiment 3, embodiment 6 and embodiment 8 use and amide
The molecular weight of copolymer respectively may be about 2000000,2300000 and 2800000, wherein amide substance select respectively formamide,
N- methylacetamide and N- ethyl acetamide.
Comparative example 2
The dispersing scale inhibitor of comparative example 1 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 30min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.87g after reaction.
Embodiment 9
The dispersing scale inhibitor of embodiment 1 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 30min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.54g after reaction.
Embodiment 10
The dispersing scale inhibitor of embodiment 2 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 30min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.59g after reaction.
Embodiment 11
The dispersing scale inhibitor of embodiment 3 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 60min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.09g after reaction.
Embodiment 12
The dispersing scale inhibitor of embodiment 4 is added in above-mentioned preliminary mixture by 5ppm, the condition of residence time 60min
Lower reaction, the quality of the remaining dirty sample of measurement is 0.56g after reaction.
Embodiment 13
The dispersing scale inhibitor of embodiment 5 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 30min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.55g after reaction.
Embodiment 14
The dispersing scale inhibitor of embodiment 6 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 30min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.19g after reaction.
Embodiment 15
The dispersing scale inhibitor of embodiment 7 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 30min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.43g after reaction.
Embodiment 16
The dispersing scale inhibitor of embodiment 8 is added in above-mentioned preliminary mixture by 100ppm, the item of residence time 30min
It is reacted under part, the quality of the remaining dirty sample of measurement is 0.18g after reaction.
Claims (13)
1. a kind of water soluble disperse antisludging agent, including component A and component B, wherein component A be tall oil and amide copolymer or
Person is the copolymer and polyisobutene Asia amide of tall oil and amide, and component B is p-tert-Butylcatechol, N, N- diethyl hydroxyl
One of amine and N- isopropylhydroxyla are a variety of；Wherein the mass ratio of component A and component B is 10~50:1~10.
2. water soluble disperse antisludging agent described in accordance with the claim 1, it is characterised in that: the mass ratio of component A and component B is 20
~40:6~10.
3. water soluble disperse antisludging agent described in accordance with the claim 1, it is characterised in that: component A is being total to for tall oil and amide
Polymers or copolymer and polyisobutene Asia amide for tall oil and amide, component B are N- isopropylhydroxyla；Component A is appropriate
When the copolymer and polyisobutene Asia amide of your oil and amide, the copolymer of tall oil and amide and the matter of polyisobutene Asia amide
Amount is than being 1:1~5:1.
4. water soluble disperse antisludging agent described in accordance with the claim 1, it is characterised in that: the copolymerization of the tall oil and amide
In object, amide is one or more in formamide, N- methylacetamide and N- ethyl acetamide.
5. water soluble disperse antisludging agent according to claim 4, it is characterised in that: the copolymerization of the tall oil and amide
In object, amide is formamide.
6. according to any water soluble disperse antisludging agent of claim 1-5, it is characterised in that: the molecular weight of component A is
600000~6000000.
7. water soluble disperse antisludging agent according to claim 6, it is characterised in that: the molecular weight of component A be 1000000~
4000000。
8. water soluble disperse antisludging agent according to claim 6, it is characterised in that: the molecular weight of component A be 1200000~
3000000。
9. water soluble disperse antisludging agent described in accordance with the claim 1, it is characterised in that: add in the water soluble disperse antisludging agent
Enter solvent, solvent is desalted water.
10. a kind of application of water soluble disperse antisludging agent in production device for acrylic nitrile, including claim 1-9 is any described
Water soluble disperse antisludging agent be added production device for acrylic nitrile liquid phase in, addition mass concentration be 10~200ppm.
11. applying according to claim 10, it is characterised in that: water soluble disperse antisludging agent be added absorber portion, exhausting section,
Fouling position and/or its upstream are easy to appear in evaporator, heat exchanger, reboiler and/or desorption device.
12. according to application described in claim 10 or 11, it is characterised in that: the water soluble disperse antisludging agent on-line continuous
Injection.
13. according to application described in claim 10 or 11, it is characterised in that: the water soluble disperse antisludging agent individually makes
With, or be applied in combination with other anti-fouling agents, other anti-fouling agents are dispersing agent, polymerization inhibitor, corrosion inhibitor, defoaming
One of agent is a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025391.8A CN106699598B (en) | 2016-11-18 | 2016-11-18 | A kind of water soluble disperse antisludging agent and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025391.8A CN106699598B (en) | 2016-11-18 | 2016-11-18 | A kind of water soluble disperse antisludging agent and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106699598A CN106699598A (en) | 2017-05-24 |
| CN106699598B true CN106699598B (en) | 2019-03-01 |
Family
ID=58940087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611025391.8A Active CN106699598B (en) | 2016-11-18 | 2016-11-18 | A kind of water soluble disperse antisludging agent and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106699598B (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151173A (en) * | 1971-05-17 | 1979-04-24 | The Lubrizol Corporation | Acylated polyoxyalkylene polyamines |
| EP0046947A1 (en) * | 1980-08-29 | 1982-03-10 | Conoco Phillips Company | Strontium and barium containing alkoxylation systems |
| JPS59232170A (en) * | 1983-06-13 | 1984-12-26 | シエブロン・リサ−チ・コンパニ− | Heat exchanger contamination prevention |
| JPS61212398A (en) * | 1985-03-18 | 1986-09-20 | Nippon Zeon Co Ltd | Scale preventive agent |
| US5824829A (en) * | 1993-12-16 | 1998-10-20 | Baker Hughes Incorporated | Hydrocarbon viscosity inhibitor and inhibiting method |
| TW526255B (en) * | 2000-08-08 | 2003-04-01 | Chinese Petroleum Corp | Composition of an anti-scale-forming agent |
| CN1566042A (en) * | 2003-06-18 | 2005-01-19 | 中国石油天然气股份有限公司 | Quenching oil viscosity breaking agent in cracking fractionator |
| CN100352899C (en) * | 2005-10-11 | 2007-12-05 | 杭州市化工研究院有限公司 | Ethene compressor cleaning media |
| CN101445749A (en) * | 2008-10-31 | 2009-06-03 | 浙江杭化科技有限公司 | Anti-tartar detersive for quenching oil column of ethylene unit |
| CN101700991A (en) * | 2009-11-19 | 2010-05-05 | 北京斯伯乐科技发展有限公司 | Efficient scale inhibitor of tail-gas compressor of styrene device and application method thereof |
| CN101838544A (en) * | 2009-12-25 | 2010-09-22 | 上海良田化工有限公司 | Scale inhibitor of ethylene device gasoline stripping tower and using method thereof |
| CN102070394A (en) * | 2010-12-22 | 2011-05-25 | 浙江杭化科技有限公司 | Scale inhibitor for styrene rectification system |
| CN103351888A (en) * | 2013-06-25 | 2013-10-16 | 黄河三角洲京博化工研究院有限公司 | Oil slurry scale inhibitor |
| CN104649425A (en) * | 2013-11-18 | 2015-05-27 | 青岛水世界环保科技有限公司 | Synthetic polymer scale inhibitor and dispersant |
| CN103666565B (en) * | 2012-09-26 | 2015-08-26 | 中国石油化工股份有限公司 | A kind of antiscale composition and uses thereof |
| CN105036370A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Ultra-temperature circulating water scale inhibitor and preparation method thereof |
| CN105273741A (en) * | 2015-01-22 | 2016-01-27 | 上海良田化工有限公司 | Ethylene device gasoline stripping tower scale inhibitor, preparation method and usage method |
| CN105481116A (en) * | 2015-12-18 | 2016-04-13 | 宁波高新区夏远科技有限公司 | Circulating cooling water corrosion and scale inhibitor and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008017219A1 (en) * | 2008-04-04 | 2009-10-08 | Clariant International Ltd. | Process for the preparation of amides in the presence of superheated water |
| DE102009031057A1 (en) * | 2009-06-30 | 2011-01-05 | Clariant International Ltd. | Continuous process for the preparation of amides of aliphatic carboxylic acids |
-
2016
- 2016-11-18 CN CN201611025391.8A patent/CN106699598B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151173A (en) * | 1971-05-17 | 1979-04-24 | The Lubrizol Corporation | Acylated polyoxyalkylene polyamines |
| EP0046947A1 (en) * | 1980-08-29 | 1982-03-10 | Conoco Phillips Company | Strontium and barium containing alkoxylation systems |
| JPS59232170A (en) * | 1983-06-13 | 1984-12-26 | シエブロン・リサ−チ・コンパニ− | Heat exchanger contamination prevention |
| JPS61212398A (en) * | 1985-03-18 | 1986-09-20 | Nippon Zeon Co Ltd | Scale preventive agent |
| US5824829A (en) * | 1993-12-16 | 1998-10-20 | Baker Hughes Incorporated | Hydrocarbon viscosity inhibitor and inhibiting method |
| TW526255B (en) * | 2000-08-08 | 2003-04-01 | Chinese Petroleum Corp | Composition of an anti-scale-forming agent |
| CN1566042A (en) * | 2003-06-18 | 2005-01-19 | 中国石油天然气股份有限公司 | Quenching oil viscosity breaking agent in cracking fractionator |
| CN100352899C (en) * | 2005-10-11 | 2007-12-05 | 杭州市化工研究院有限公司 | Ethene compressor cleaning media |
| CN101445749A (en) * | 2008-10-31 | 2009-06-03 | 浙江杭化科技有限公司 | Anti-tartar detersive for quenching oil column of ethylene unit |
| CN101700991A (en) * | 2009-11-19 | 2010-05-05 | 北京斯伯乐科技发展有限公司 | Efficient scale inhibitor of tail-gas compressor of styrene device and application method thereof |
| CN101838544A (en) * | 2009-12-25 | 2010-09-22 | 上海良田化工有限公司 | Scale inhibitor of ethylene device gasoline stripping tower and using method thereof |
| CN102070394A (en) * | 2010-12-22 | 2011-05-25 | 浙江杭化科技有限公司 | Scale inhibitor for styrene rectification system |
| CN103666565B (en) * | 2012-09-26 | 2015-08-26 | 中国石油化工股份有限公司 | A kind of antiscale composition and uses thereof |
| CN103351888A (en) * | 2013-06-25 | 2013-10-16 | 黄河三角洲京博化工研究院有限公司 | Oil slurry scale inhibitor |
| CN104649425A (en) * | 2013-11-18 | 2015-05-27 | 青岛水世界环保科技有限公司 | Synthetic polymer scale inhibitor and dispersant |
| CN105273741A (en) * | 2015-01-22 | 2016-01-27 | 上海良田化工有限公司 | Ethylene device gasoline stripping tower scale inhibitor, preparation method and usage method |
| CN105036370A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Ultra-temperature circulating water scale inhibitor and preparation method thereof |
| CN105481116A (en) * | 2015-12-18 | 2016-04-13 | 宁波高新区夏远科技有限公司 | Circulating cooling water corrosion and scale inhibitor and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106699598A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Song et al. | Synthesis and application of starch-graft-poly (AM-co-AMPS) by using a complex initiation system of CS-APS | |
| Lv et al. | Studies on graft copolymerization of chitosan with acrylonitrile by the redox system | |
| CN106565537B (en) | A kind of water soluble disperse antisludging agent and its application in production device for acrylic nitrile | |
| CN101921349A (en) | Radiation polymerization method of continuous hydrous dispersoids of unsaturated monomer | |
| EP3196217B1 (en) | Method for producing polyvinylamine crosslinked polymer particles | |
| CN106699598B (en) | A kind of water soluble disperse antisludging agent and its application | |
| Wang et al. | Determination of reactivity ratios of copolymerization of acrylamide (AM) and methacryloxyethyltrimethyl ammonium chloride (DMC) with ultraviolet initiation, and their sequence length distribution | |
| PL102870B1 (en) | METHOD OF MAKING NITRILE COPOLYMERS | |
| WO2003040194A1 (en) | (meth)acrylic acid (salt) polymer and process for production thereof | |
| CN112279386B (en) | Non-phosphorus scale inhibitor and preparation method and application thereof | |
| CN109206549B (en) | Cationic free radical polymerization emulsion for metal surface treatment field and preparation method thereof | |
| TAGHI et al. | Kinetics and mechanism of heterogeneous graft polymerization of acrylonitrile onto polyvinyl alcohol initiated with ceric ammonium nitrate | |
| CN110036045B (en) | Method for producing polyacrylonitrile | |
| CN108424490B (en) | Acrylamide copolymer and preparation method and application thereof | |
| CN109265593B (en) | Dimethyl diallyl ammonium chloride solid polymer | |
| CN107746446B (en) | Preparation method of ternary copolymerization amphoteric polyacrylamide | |
| US2646424A (en) | Acrylonitrile compositions and process for making the same | |
| US3112295A (en) | Emulsion polymerization of water-soluble with water-insoluble monomers | |
| Bajpai et al. | Synthesis and characterization of poly [methyl methacrylate‐co‐2‐ethylhexyl acrylate‐co‐poly (propylene glycol diacrylate)] latices | |
| CN108424499B (en) | Acrylamide copolymer and preparation method and application thereof | |
| Peng et al. | Water‐soluble copolymers. III. Two‐step terpolymerization of acrylamide, acrylic acid, and acryloyloxyethyl trimethylammonium chloride | |
| JP5238268B2 (en) | Dye wastewater treatment agent | |
| CN106905188A (en) | A kind of polymerization inhibitor and its application in production device for acrylic nitrile | |
| CN108424497B (en) | Acrylamide copolymer and preparation method and application thereof | |
| Tian et al. | MONOMER REACTIVITY RATIOS OF ACRYLAMIDE AND 2-ETHYLHEXYL ACRYLATE DETERMINED BY THE ELEMENTAL ANALYSIS METHOD. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |