CN102806069B - Composition for removing metal ions in ultra-pure ammonia and use method of same - Google Patents
Composition for removing metal ions in ultra-pure ammonia and use method of same Download PDFInfo
- Publication number
- CN102806069B CN102806069B CN201210289838.8A CN201210289838A CN102806069B CN 102806069 B CN102806069 B CN 102806069B CN 201210289838 A CN201210289838 A CN 201210289838A CN 102806069 B CN102806069 B CN 102806069B
- Authority
- CN
- China
- Prior art keywords
- composition
- cnt
- metal ion
- ultra
- coating
- 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
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a composition for removing metal ions in ultra-pure ammonia and a use method of same. The composition comprises 70-90% of carbon nano tube part A and 10-30% of adhesive part B in percentage by mass, wherein the adhesive is required to be low temperature resistant and corrosion resistant. The composition disclosed by the invention can be coated in a liquid ammonia pipeline system to form an adsorbing coating. The composition disclosed by the invention and the liquid ammonia pipeline system formed by the same have the advantages of lower cost, simple process and short production period; and an obtained metal ion removed layer obtains higher metal ion removing rate and better bonding force.
Description
Technical field
The present invention relates to go in a kind of gas generation the using method of deimpurity composition and said composition, particularly a kind ofly produce and remove the composition of metal ion and the using method of said composition for ultrapure liquefied ammonia.
Background technology
Ultra-pure ammonia is the critical material that opto-electronic device is produced.Be widely used in light emitting semiconductor device LED, solar-energy photo-voltaic cell PV, the industries such as semiconductor integrated circuit IC and liquid crystal display LCD.These years, the LED of China and solar battery technology and related industry have obtained fast development.Manufacturing in LED crystal grain and solar battery sheet process, all need to use a large amount of ultra-pure ammonias as nitrogenous source.Especially LED epitaxial wafer is in the time of growth, the purity of required ammonia is very high, also higher to the requirement of metal ion wherein, if the concentration of metal ion is higher in ammonia, can form harmful doping to LED, so the concentration of a lot of metal ions all needs to be limited in ppb rank.And current domestic LED manufactures mostly dependence on import of required ammonia, and under one's control.Visible, research and development and large-scale production electron level ultra-pure ammonia are significant for development China opto-electronics.
Iijima has found CNT (CNTs) in 1991, be now widely studied its excellent performance and application.As relatively new adsorbent, CNT has been proved to be has the great potential of removing metal ion from waste water as lead, cadmium, chromium, copper and mickel etc.The result of these researchs shows, CNT is hopeful for adsorbing metal ions.
CNT is divided into two types: (1) SWCN (SWCNTs) and (2) multi-walled carbon nano-tubes (MWCNTs).Adsorption of metal ions is very complicated to the mechanism of CNT, because there will be electrostatic attraction, and the chemical action of the surface functional group of adsorption precipitation and metal ion and CNT.
Original CNT is low-down to the adsorption capacity of metal ion, if but by nitric acid, can show and improve after clorox and potassium permanganate oxidation.But the use of the CNT after oxidation, can be discharged in the liquefied ammonia of raw materials for production, and liquefied ammonia is polluted, thereby affect the purity that ultra-pure ammonia is produced.
Summary of the invention
Goal of the invention of the present invention is in order to overcome the shortcoming in background technology, and a kind of composition is provided, and can in ultra-pure ammonia is produced, effectively remove metal ion and can not have pollution to ultra-pure ammonia, and the using method of said composition is provided.
Goal of the invention of the present invention is achieved by the following technical solution: a kind of ultra-pure ammonia is removed the composition of metal ion in producing, said composition comprises being 70～90% the CNT part A through oxidation processes and 10～30% bonding agent part B in mass, wherein, part B is made up of the dispersant of mass percent 1～5%, 40～70% diluent and 25～55% binding materials, described diluent is the solvent that alcohols or benzene class etc. can be dissolved binding material, and binding material is acrylate copolymer or resinous material preferably.
Described binding material is preferably the one in can poly-phenolic resins, the epoxy resin of withstand long term exposure-33.5 ℃ low temperature.
The caliber of the described CNT part A through oxidation processes is in 1～300 nanometer, and length is in 100 nanometer～50 micron.
The oxidation treatment solution of the described CNT part A through oxidation processes is that solution is that concentration is 30～50% nitric acid, or the concentration sulfuric acid that is 20～40%, or the concentration clorox that is 40～60%.
Ultra-pure ammonia is removed a using method for the composition of metal ion in producing, this using method comprises the following steps:
1) by the CNT through oxidation processes and bonding agent respectively by mass percentage 70～90% and 10～30% ratio be made into slurry, stir with mixer;
2) described slurry is coated in the conveying pipe of raw materials ammonia, forms the coating of 20～500 microns, then dry;
3) described dried coating sand papering, makes the CNT in coating expose coating surface, in order to adsorb the metal ion in pipeline transportation, coating is with after sand papering, utilize deionized water to clean described pipe-line system by spray gun, then dry, to remove various pollutants.
The invention has the beneficial effects as follows: utilize the slurry coating of CNT and bonding agent composition to prepare adsorption of metal ions coating, and be applied to can be in effectively removing metal ion in the conveying pipe of raw materials ammonia, have and can not cause the loss of CNT to enter in liquefied ammonia to pollute.Make the pipe-line system of removing metal ion have higher metal ion clearance, adhesion, and raw material is preferably easy to get, and technique is simple, and the production cycle is shorter.
The specific embodiment
Embodiment 1:
1, use pyrolyzed-polymer legal system for CNT.
2, with the nitric acid of 30% concentration, CNT is carried out to oxidation processes.
3, taking mass percent is 2% pentasodium triphosphate of dispersing agent, 40% diluent cyclohexanone, and 58% binding material epoxy resin, stirs after mixing, forms bonding agent.
4, taking mass percent is the CNT that 30% bonding agent and mass percent are 70%, after mixing, stirs, and forms slurry.
5, the mode that adopts brush to dip slurry coating is coated in slurry in liquefied ammonia transport system.
6, then dry at 160 ℃, and use sand papering.
7, pipe-line system is cleaned, to remove various impurity.
Embodiment 2:
1, use chemical vapor deposition for carbon nanotubes.
2, with the sulfuric acid of 20% concentration, CNT is carried out to oxidation processes.
3, taking mass percent is 1% sodium hexametaphosphate dispersant, 50% diluent dimethylbenzene, and 49% binding material phenolic resins, stirs after mixing, forms bonding agent.
4, taking mass percent is the CNT that 20% bonding agent and mass percent are 80%, after mixing, stirs, and forms slurry.
5, the mode that adopts brush to dip slurry coating is coated in slurry in liquefied ammonia transport system.
6, then dry at 150 ℃, and use sand papering.
7, pipe-line system is cleaned, to remove various impurity.
Embodiment 3:
1, use arc discharge legal system for CNT.
2, with the clorox of 50% concentration, CNT is carried out to oxidation processes.
3, taking mass percent is 3% dispersant sodium pyrophosphate, 60% diluent n-butanol, and 37% binding material polyurethane, stirs after mixing, forms bonding agent.
4, taking mass percent is the CNT that 10% bonding agent and mass percent are 90%, after mixing, stirs, and forms slurry.
5, the mode that adopts brush to dip slurry coating is coated in slurry in liquefied ammonia transport system.
6, then dry at 120 ℃, and use sand papering.
7, pipe-line system is cleaned, to remove various impurity.
Claims (3)
1. ultra-pure ammonia is removed a using method for the composition of metal ion in producing, and it is characterized in that this using method comprises the following steps:
1) by the CNT through oxidation processes and bonding agent respectively by mass percentage 70～90% and 10～30% ratio be made into slurry, stir with mixer; The caliber of the described CNT through oxidation processes is in 1～300 nanometer, length is in 100 nanometer～50 micron, described binding agent is made up of the dispersant of mass percent 1～5%, 40～70% diluent and 25～55% binding materials, diluent is alcohol or the benzene solvent that can dissolve binding material, and binding material is acrylate copolymer or resin material;
2) above-mentioned slurry is coated in the conveying pipe of raw materials ammonia, forms the coating of 20～500 microns, then dry;
3) dried coating sand papering, makes the CNT in coating expose coating surface, in order to adsorb the metal ion in pipeline transportation, coating is with after sand papering, utilize deionized water to clean pipe-line system by spray gun, then dry, to remove various pollutants.
2. ultra-pure ammonia as claimed in claim 1 is removed the using method of the composition of metal ion in producing, and it is characterized in that the binding material described in step 1) is the one in poly-phenolic resins, the epoxy resin of withstand long term exposure-33.5 ℃ low temperature.
3. ultra-pure ammonia as claimed in claim 1 is removed the using method of the composition of metal ion in producing, the oxidation treatment solution that it is characterized in that the CNT through oxidation processes described in step 1) is that concentration is 30～50% nitric acid, or the sulfuric acid that concentration is 20～40%, or the concentration clorox that is 40～60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289838.8A CN102806069B (en) | 2012-08-15 | 2012-08-15 | Composition for removing metal ions in ultra-pure ammonia and use method of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289838.8A CN102806069B (en) | 2012-08-15 | 2012-08-15 | Composition for removing metal ions in ultra-pure ammonia and use method of same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102806069A CN102806069A (en) | 2012-12-05 |
| CN102806069B true CN102806069B (en) | 2014-07-02 |
Family
ID=47230043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210289838.8A Active CN102806069B (en) | 2012-08-15 | 2012-08-15 | Composition for removing metal ions in ultra-pure ammonia and use method of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102806069B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1757596A (en) * | 2005-11-07 | 2006-04-12 | 浙江大学 | Method for preparing prefab of porous carbon nanometer tube |
| CN101462713A (en) * | 2007-12-20 | 2009-06-24 | 索尼株式会社 | Method for processing carbon nano-tube, carbon nano-tube and carbon nano-tube device |
-
2012
- 2012-08-15 CN CN201210289838.8A patent/CN102806069B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1757596A (en) * | 2005-11-07 | 2006-04-12 | 浙江大学 | Method for preparing prefab of porous carbon nanometer tube |
| CN101462713A (en) * | 2007-12-20 | 2009-06-24 | 索尼株式会社 | Method for processing carbon nano-tube, carbon nano-tube and carbon nano-tube device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102806069A (en) | 2012-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Oxygen functionalization of multiwall carbon nanotubes by microwave-excited surface-wave plasma treatment | |
| Zhang et al. | Production of graphene sheets by direct dispersion with aromatic healing agents | |
| Yeo et al. | Enhancement of nitrate removal from a solution of mixed nitrate, chloride and sulfate ions using a nitrate-selective carbon electrode | |
| CN104437358B (en) | A kind of preparation method of simultaneously adsorbing the composite adsorbing material of heavy metal ion and volatile organic matter in waste gas | |
| CN102447011B (en) | Method for manufacturing solar battery photoanode and product thereof | |
| Hou et al. | Graphene oxide coated quartz sand as a high performance adsorption material in the application of water treatment | |
| CN102417176A (en) | Preparation method of graphene-carbon nanotube compound film based on three-dimensional network appearance | |
| CN102795619A (en) | Graphene thin film transferring method based on physical adsorption | |
| CN108015106B (en) | Heavy metal contaminated soil leaching restoration and leaching solution regeneration integrated device and method | |
| CN103318918B (en) | A kind of method of purifying and recovering ammonia gas | |
| Du et al. | Janus film evaporator with improved light-trapping and gradient interfacial hydrophilicity toward sustainable solar-driven desalination and purification | |
| Wei et al. | Photothermal bio-based membrane via spectrum-tailoring and dual H-bonding networks strategies for seawater treatment and crude oil viscosity reduction | |
| CN104609518B (en) | Method for selectively removing Fe2+ and/or Fe3+ from industrial waste water through electric adsorption technology | |
| CN102806069B (en) | Composition for removing metal ions in ultra-pure ammonia and use method of same | |
| Chen et al. | Enhanced and selective uranium extraction onto electrospun nanofibers by regulating the functional groups and photothermal conversion performance | |
| Jung et al. | Eco-friendly and simple radiation-based preparation of graphene and its application to organic solar cells | |
| Yu et al. | Flower-like CuO light traps as anti-wetting armor of Janus membrane for spraying wastewater treatment by photothermal membrane distillation | |
| CN101024579B (en) | Method for surface fit metn of inorganic nano particles on carbon nano tube | |
| CN107162117B (en) | Method for removing perchlorate in water body through electrochemical reduction | |
| CN106179217A (en) | A kind of preparation method and application of graphene film composite stone sand adsorbent | |
| Yao et al. | Design of graphene/organic composite adsorbent and its application in water treatment | |
| CN103122458B (en) | 45# steel surface has the preparation method of the self-assembled film of corrosion inhibition | |
| Lee et al. | Preparation of Conductive Carbon Films from Poly (vinyl alcohol) by Chemical Pre-Treatment and Pyrolysis | |
| CN104258689B (en) | A kind of adsorption column simultaneously adsorbing heavy metal ion and volatile organic matter in waste gas | |
| CN204265452U (en) | The moisture removal system of ultra-pure ammonia preparation process |
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: 215152 Anmin Road, Panyang Industrial Park, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Jinhong Gas Co.,Ltd. Address before: 215143 No. 6 Anmin Road, Panyang Industrial Park, Huangduo Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU JINHONG GAS Co.,Ltd. |