CN103014717B - Method for modifying organic corrosion inhibitor by magnetic functionalization - Google Patents
Method for modifying organic corrosion inhibitor by magnetic functionalization Download PDFInfo
- Publication number
- CN103014717B CN103014717B CN201210575345.0A CN201210575345A CN103014717B CN 103014717 B CN103014717 B CN 103014717B CN 201210575345 A CN201210575345 A CN 201210575345A CN 103014717 B CN103014717 B CN 103014717B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- organic
- organic inhibitor
- corrosion inhibitor
- inhibitor
- 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
- 239000003112 inhibitor Substances 0.000 title claims abstract description 67
- 238000005260 corrosion Methods 0.000 title claims abstract description 28
- 230000007797 corrosion Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007306 functionalization reaction Methods 0.000 title abstract description 5
- 238000012986 modification Methods 0.000 claims abstract description 20
- 230000004048 modification Effects 0.000 claims abstract description 20
- 239000002122 magnetic nanoparticle Substances 0.000 claims abstract description 13
- 239000003999 initiator Substances 0.000 claims abstract description 12
- 239000013543 active substance Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000002086 nanomaterial Substances 0.000 claims description 11
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- -1 class of department Chemical compound 0.000 claims description 9
- 229910000859 α-Fe Inorganic materials 0.000 claims description 9
- 230000000116 mitigating effect Effects 0.000 claims description 8
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 6
- 239000011553 magnetic fluid Substances 0.000 claims description 6
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 5
- 239000004159 Potassium persulphate Substances 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- 235000019394 potassium persulphate Nutrition 0.000 claims description 4
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 claims description 4
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000002252 acyl group Chemical group 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 125000005587 carbonate group Chemical group 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 229920000136 polysorbate Polymers 0.000 claims description 3
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 claims description 3
- 238000005215 recombination Methods 0.000 claims description 3
- 230000006798 recombination Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 18
- 230000005764 inhibitory process Effects 0.000 abstract description 11
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 3
- 239000004094 surface-active agent Substances 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 239000010962 carbon steel Substances 0.000 description 10
- 239000013535 sea water Substances 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 6
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011554 ferrofluid Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention provides a method for modifying an organic corrosion inhibitor by magnetic functionalization, which is the method compounding the organic corrosion inhibitor with a magnetic nanometer material to improve a corrosion inhibition effect of the organic corrosion inhibitor. The method comprises the following steps of: dispersing magnetic nanoparticles into the organic corrosion inhibitor and mixing uniformly; adding a proper amount of a surfactant; adjusting the acidity; and adding an initiator to realize organic-inorganic compounding at set temperature. The method provided by the invention facilitates the organic corrosion inhibitor to have double functions of magnetic attraction and organic adsorption and have strong adhesion force with iron-based materials, and effectively improves the corrosion inhibition effect of the organic corrosion inhibitor. Besides, the magnetic functionalization method is simple and general, and proper surfactants and initiators are chosen according to properties of organic matters to realize the compounding with magnetic nanometer materials to complete the magnetic functionalization modification. Moreover, the method is beneficial to developing novel efficient corrosion inhibitors based on original corrosion inhibitors, and provides an effective way for saving the resource and realizing the rapid and effective development of novel corrosion inhibitor products.
Description
Technical field
The present invention relates to a kind of method of organic inhibitor being carried out to modification.Particularly relate to a kind of magnetic/functionalized method of organic inhibitor being carried out to modification of passing through that can effectively improve organic inhibitor inhibition efficiency.
Background technology
Inhibiter can stop or slow down corrosion of metal effectively.But existing inorganic inhibitor often function singleness, environmental pollution is more serious; Organic inhibitor and normally surface adsorption effect of intermetallic effect, insecure also inhomogeneous, corrosion mitigating effect is general.Therefore explore the functionalization organic inhibitor that bonding force is stronger, oneself becomes an important directions of R and D high-efficient corrosion inhibitor.Magnetic/functionalized matrix material has very wide application prospect, especially magnetic composite has successfully been applied to the aspects such as the sorbent material recovery of target medication, Industrial Catalysis and environmental area medically, obtain very significant effect, but the research of magnetic/functionalized inhibiter yet there are no report.
The physical properties of iron has determined that it is a kind of material of attracting mutually with magnetic substance of being easy to; therefore the bonding force between magnetic/functionalized organic inhibitor and iron will increase polarity, is conducive to form the stronger protective layer of binding ability on the surface of iron.In addition, the result of study of having reported shows can be by slowing down Fe under the action of a magnetic field
3+and Fe
2+to spreading in solution and impelling Fe
3+be reduced to Fe
2+, suppress anode dissolution.Being to improve it to iron preservative effect new approaches so introduce magnetic in organic inhibitor, is also an effective way.
Summary of the invention
Technical problem to be solved by this invention is a kind of bonding force, inhibition anode dissolution that utilizes the specific function of magnetic to strengthen organic inhibitor to be provided, and then to improve the magnetic/functionalized method of organic inhibitor being carried out to modification of passing through of inhibition efficiency.
The technical solution adopted in the present invention is: a kind of by magnetic/functionalized method of organic inhibitor being carried out to modification, and be by compound to organic inhibitor and magnetic Nano material, improve the method for organic inhibitor corrosion mitigating effect, recombination process specifically comprises the steps:
1) magnetic nano-particle be dispersed in organic inhibitor and mix;
2) add appropriate tensio-active agent;
3) regulate acidity;
4) add initiator, under design temperature, realize the compound of organic and inorganic.
Described magnetic nano-particle is magnetic fluid, or a kind of alloy magnetic Nano material in Fe base, Co base, Ni base and FeNiCo base, or a kind of compound magnetic Nano material in ferrite and uhligite.
The amount of putting into of the magnetic nano-particle described in step 1) is: the magnetic nano-particle of putting into 0.5g～3g in the organic inhibitor of every 100mL.
Step 2) described in tensio-active agent be a kind of tensio-active agent in OP-10, tween, class of department, SDBS, SDS, sodium laurylsulfate, polyvalent alcohol.
Acidity described in step 3) according to organic inhibitor Composition Control at pH<7.
Initiator described in step 4) is the one in organic peroxy compound, Potassium Persulphate, Ammonium Persulfate 98.5, Diisopropyl azodicarboxylate or 2,2'-Azobis(2,4-dimethylvaleronitrile).
Described organic peroxy compound is R-O-O-H or R-O-O-R, and wherein R is alkyl or acyl group or carbonate group.
Of the present invention by magnetic/functionalized method of organic inhibitor being carried out to modification, make organic inhibitor there is magnetic attraction and organic adsorption dual effect simultaneously, stronger with the bonding force of iron, effectively improve the corrosion mitigating effect of organic inhibitor.And magnetic/functionalized method simple general-purpose, can select suitable tensio-active agent and initiator to realize with magnetic Nano material according to organic characteristic compound, completes magnetic/functionalized modification.Be conducive to development of new high-efficient corrosion inhibitor on original inhibiter Research foundation.For economize on resources and realize fast, effective exploitation novel corrosion inhibitor product provides effective way.
Brief description of the drawings
Fig. 1 is 20# carbon steel electrochemical impedance spectroscopy in natural sea-water in example 1;
In figure: curve a is the electrochemical impedance spectroscopy of 20# carbon steel in the natural sea-water that contains sample 1;
Curve b be the electrochemical impedance spectroscopy of 20# carbon steel in the natural sea-water that contains sample 2 (sample 2 for composition identical with sample 1, but the organic inhibitor that does not carry out magnetic/functionalized modification);
Curve c is the electrochemical impedance spectroscopy of 20# carbon steel in the natural sea-water that does not add any inhibiter.
Embodiment
Be described in detail by the magnetic/functionalized method that organic inhibitor is carried out to modification of the present invention below in conjunction with embodiment and accompanying drawing.
Of the present invention by magnetic/functionalized method of organic inhibitor being carried out to modification, be intended to utilize the specific function of magnetic to strengthen bonding force, the inhibition anode dissolution of organic inhibitor, and then improve inhibition efficiency.That is, compound by organic inhibitor and magnetic Nano material, form magnetic organic-inorganic composition, realize organic inhibitor is carried out to magnetic/functionalized modification.
Of the present invention by magnetic/functionalized method of organic inhibitor being carried out to modification, be by compound to organic inhibitor and magnetic Nano material, improve the corrosion mitigating effect of organic inhibitor, recombination process specifically comprises the steps:
1) magnetic nano-particle be dispersed in organic inhibitor and mix;
Described magnetic nano-particle is magnetic fluid (ferrofluid, nickel magnetic fluid, cobalt magnetic fluid etc.), or Fe base, Co base, Ni base and the FeNiCo base one in interior common alloy magnetic Nano material, or ferrite (Zn ferrite, Mn ferrite, Ni ferrite, vectolite, Z 250 and rare earth garnet type ferrite etc.) and the one of uhligite in interior common compound magnetic Nano material.
The add-on of described magnetic nano-particle is: the magnetic nano-particle that adds 0.5g～3g in every 100mL organic inhibitor.
2) add appropriate tensio-active agent;
Described tensio-active agent is a kind of tensio-active agent in OP-10, tween, class of department, SDBS, SDS, sodium laurylsulfate, polyvalent alcohol, and consumption is determined according to the character of organic composition and tensio-active agent.
3) regulate acidity;
Described acidity according to organic inhibitor Composition Control at pH<7.
4) add initiator, under design temperature, realize the compound of organic and inorganic.
Described initiator is the one in organic peroxy compound, Potassium Persulphate, Ammonium Persulfate 98.5, Diisopropyl azodicarboxylate or 2,2'-Azobis(2,4-dimethylvaleronitrile).Described organic peroxy compound is R-O-O-H or R-O-O-R, and wherein R is alkyl or acyl group or carbonate group.
Be described in more detail by the magnetic/functionalized method that organic inhibitor is carried out to modification of the present invention for example below:
Example 1:
1) take Nanometer Cobalt Ferrite Oxide 0.2g;
2) Nanometer Cobalt Ferrite Oxide is evenly spread in 15mL organic inhibitor, and add 0.1g OP-10;
3) regulating acidity is pH=3;
4) add 5mg Ammonium Persulfate 98.5 initiator;
5) isothermal reaction 3h at 85 DEG C, obtains sample 1;
Illustrate:
1. step 2) in organic inhibitor used be commercially available organic inhibitor, technical grade product;
2. the sample 2 of mentioning in Fig. 1 is that composition is identical with sample 1, but the organic inhibitor that does not carry out magnetic/functionalized modification.
3. corrosion mitigating effect analysis:
A) 20# carbon steel is placed on not containing in the natural sea-water medium of any inhibiter, its erosion rate is 0.9056mm/a;
B) 20# carbon steel is placed in the natural sea-water medium that contains sample 2, its erosion rate is 0.2383mm/a, and corrosion inhibition rate is 73.7%;
C) 20# carbon steel is placed in the natural sea-water medium that contains this example 1, its erosion rate is 0.0693mm/a, and corrosion inhibition rate is 93.1%;
D) from above-mentioned to 20# carbon steel erosion rate analysis and electrochemical Impedance Analysis (shown in Fig. 1) in natural sea-water medium, under same test condition, the corrosion mitigating effect of the organic inhibitor by magnetic/functionalized modification is obviously better than the corrosion mitigating effect of the non-magnetic/functionalized organic inhibitor of identical component.
Example 2:
1) take nano level nickel magnetic fluid 0.75g;
2) nanometer magnetofluid is evenly spread in 25mL organic inhibitor, and add 0.05g SDBS;
3) regulating acidity is pH=4;
4) add 8mg Ammonium Persulfate 98.5 initiator;
5) isothermal reaction 6h at 95 DEG C, obtains sample 3;
Illustrate:
1. step 2) in organic inhibitor used be commercially available organic inhibitor, technical grade product;
2. 20# carbon steel is placed in the natural sea-water medium that contains this example 3, its erosion rate is 0.0815mm/a, and corrosion inhibition rate is 91.0%;
Example 3:
1) take nano ferriferrous oxide 0.1g;
2) nano ferriferrous oxide is evenly spread in 20mL organic inhibitor, and add 0.1g OP-10;
3) regulating acidity is pH=5;
4) add 5mg Potassium Persulphate initiator;
5) isothermal reaction 6h at 80 DEG C, obtains sample 4;
Illustrate:
1. step 2) in organic inhibitor used be commercially available organic inhibitor, technical grade product;
2. 20# carbon steel is placed in the natural sea-water medium that contains this example 4, its erosion rate is 0.0487mm/a, and corrosion inhibition rate is 94.6%.
Claims (4)
1. by a magnetic/functionalized method of organic inhibitor being carried out to modification, it is characterized in that, is by compound to organic inhibitor and magnetic Nano material, improves the method for organic inhibitor corrosion mitigating effect, and recombination process specifically comprises the steps:
1) magnetic nano-particle be dispersed in organic inhibitor and mix, described magnetic nano-particle is magnetic fluid, or a kind of alloy magnetic Nano material in Fe base, Co base, Ni base and FeNiCo base, or a kind of compound magnetic Nano material in ferrite and uhligite;
2) add appropriate tensio-active agent, described tensio-active agent is a kind of tensio-active agent in OP-10, tween, class of department, SDBS, SDS, sodium laurylsulfate, polyvalent alcohol;
3) regulate acidity;
4) add initiator, realize the compound of organic and inorganic under design temperature, described initiator, is the one in organic peroxy compound, Potassium Persulphate, Ammonium Persulfate 98.5, Diisopropyl azodicarboxylate or 2,2'-Azobis(2,4-dimethylvaleronitrile).
2. according to claim 1 by magnetic/functionalized method of organic inhibitor being carried out to modification, it is characterized in that step 1) described in the amount of putting into of magnetic nano-particle be: the magnetic nano-particle of putting into 0.5g～3g in the organic inhibitor of every 100mL.
3. according to claim 1 by magnetic/functionalized method of organic inhibitor being carried out to modification, it is characterized in that step 3) described in acidity according to organic inhibitor Composition Control at pH<7.
4. according to claim 1ly it is characterized in that by magnetic/functionalized method of organic inhibitor being carried out to modification, described organic peroxy compound is R-O-O-H or R-O-O-R, and wherein R is alkyl or acyl group or carbonate group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210575345.0A CN103014717B (en) | 2012-12-24 | 2012-12-24 | Method for modifying organic corrosion inhibitor by magnetic functionalization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210575345.0A CN103014717B (en) | 2012-12-24 | 2012-12-24 | Method for modifying organic corrosion inhibitor by magnetic functionalization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103014717A CN103014717A (en) | 2013-04-03 |
| CN103014717B true CN103014717B (en) | 2014-07-16 |
Family
ID=47963822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210575345.0A Active CN103014717B (en) | 2012-12-24 | 2012-12-24 | Method for modifying organic corrosion inhibitor by magnetic functionalization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103014717B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104830299B (en) * | 2015-05-20 | 2017-12-15 | 广西经正科技开发有限责任公司 | A kind of imidazoline quaternary ammonium salt composite corrosion inhibitor and preparation method thereof |
| CN111607796A (en) * | 2019-02-25 | 2020-09-01 | 天津大学 | Controlled-release magnetic zinc-aluminum-cerium hydrotalcite-loaded 2-mercaptobenzothiazole corrosion inhibitor and preparation method thereof |
| CN113151832B (en) * | 2021-04-16 | 2023-02-03 | 江西省科学院应用化学研究所 | Magnetic graphene oxide/carboxymethyl chitosan compound corrosion inhibitor and preparation method and application thereof |
| CN114506931B (en) * | 2022-01-25 | 2022-11-22 | 广州中宸环保科技有限公司 | Pipeline corrosion and scale inhibition method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070069182A1 (en) * | 2005-09-26 | 2007-03-29 | Halliburton Energy Services, Inc. | Corrosion inhibitor compositions and associated methods |
| CN101514457B (en) * | 2009-04-02 | 2011-09-14 | 西安创联华特表面处理技术有限责任公司 | Multi-purpose metal surface protectant and preparation method thereof |
-
2012
- 2012-12-24 CN CN201210575345.0A patent/CN103014717B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103014717A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103014717B (en) | Method for modifying organic corrosion inhibitor by magnetic functionalization | |
| CN105944667B (en) | Graphene oxide-loaded nano iron material of Magneto separate characteristic and preparation method thereof in a kind of underground medium | |
| CN102258980B (en) | Method for preparing sulfured magnetic chitosan and method for treating waste water containing heavy metals by using sulfured magnetic chitosan | |
| Tian et al. | High damping properties of magnetic particles doped rubber composites at wide frequency | |
| Molazemi et al. | The investigation of the compression and tension behavior of the cobalt ferrite magnetorheological fluids synthesized by co-precipitation | |
| RU2012123723A (en) | METHOD FOR INCREASING EFFICIENCY OF THE ORE SEPARATION PROCESS USING HYDROPHOBIC MAGNETIC PARTICLES OF MECHANICAL ENERGY | |
| CN108659807A (en) | A kind of preparation method of intelligent nano foam flooding finish | |
| CN104262536A (en) | Active/controllable graphene oxide surface ion imprinted polymer, and preparation method and application thereof | |
| CN104190472B (en) | A kind of new and effective multiphase Fenton catalyst Fe 3O4@EDTA preparation and application | |
| CN105777982A (en) | Drag reducer for slickwater fracturing fluid and synthesis method for drag reducer | |
| CN106478904A (en) | A kind of preparation method of the segmented copolymer material with temperature and pH-sensitivity | |
| CN105238383A (en) | Resistance reduction agent for oil well fracturing and preparation method of resistance reduction agent | |
| CN107964097A (en) | The ternary nano composite material preparation method and application of redox graphene, ferroso-ferric oxide and polyaniline | |
| Mu et al. | Molecular oxygen activation with nano zero-valent iron for aerobic degradation of organic contaminants and the performance enhancement | |
| CN102924714A (en) | Method for preparing carbon nanotube-polyaniline composite wave-absorbing material filled with SDBS (Sodium Dodecyl Benzene Sulfonate)-modified manganese-zinc ferrite | |
| CN102976465B (en) | Method for degrading polyacrylamide in sewage | |
| CN103191698B (en) | Method for preparing graphene/ferroferric oxide composite microspheres | |
| Du et al. | Nanocomposite gels for water shut-off and temporary plugging in the petroleum industry: a review | |
| Zhuo et al. | Biogenic Fe incorporation into anaerobic granular sludge assisted by Shewanella oneidensis MR-1 enhanced interspecies electron transfer and methane production | |
| Li et al. | Improving transient magnetorheological response of magnetorheological elastomer by incorporating CIP@ FeNi particles | |
| WO2008120585A1 (en) | Water-soluble copolymer and aqueous dispersing agent | |
| CN104785223A (en) | PPy (polypyrrole)/ nickel ferrite nanocomposite material as well as preparation and application thereof | |
| Fajaroh et al. | To enhance the purity and crystallinity of magnetite nanoparticles prepared by surfactant-free electrochemical method by imposing higher voltage | |
| CN109455807A (en) | A kind of sulfur method of high sulfur content oilfield sewage | |
| CN106380532B (en) | A kind of preparation method of controllable long-acting slow-release sodium nitrite corrosion inhibiter microcapsules |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 300192 No. 1 East scientific research road, Tianjin, Nankai District Patentee after: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, MNR (TIANJIN) Country or region after: China Address before: 300192 No. 1 East scientific research road, Tianjin, Nankai District Patentee before: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, SOA (TIANJIN) Country or region before: China |