CN107774131A - Preparation method of ball shaped nano composite removed for formaldehyde and products thereof and application - Google Patents
Preparation method of ball shaped nano composite removed for formaldehyde and products thereof and application Download PDFInfo
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- CN107774131A CN107774131A CN201711099481.6A CN201711099481A CN107774131A CN 107774131 A CN107774131 A CN 107774131A CN 201711099481 A CN201711099481 A CN 201711099481A CN 107774131 A CN107774131 A CN 107774131A
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- Prior art keywords
- nano composite
- formaldehyde
- slurry
- ball shaped
- preparation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/2073—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
Abstract
The invention discloses a kind of preparation method for material of ball shaped nano composite wood removed for formaldehyde and products thereof and application, the material is by preparation of nano composite mortar, is evenly coated in spheroid carrier surface filming.Aqueous binders are only added in nano composite slurry preparation process, the mobility only using deionized water as dispersant and exclusive solvents control slurry, curing agent are added according to the cementitiousness of slurry.Under normal temperature and pressure, concentration of formaldehyde is 5.8 μ g/m3When, the features such as purification efficiency of the material PARA FORMALDEHYDE PRILLS(91,95) can reach 83%, and there is nano composite material the raw material prepared to be easy to get in the present invention, and technique is simple, and wearability is good.
Description
Technical field
The present invention relates to a kind of preparation method of ball shaped nano composite removed for formaldehyde and products thereof and apply,
Suitable for the removal of environmental contaminants formaldehyde, there is application prospect in depollution of environment field.
Background technology
With the continuous development of society, house decoraton finishing discharges diversified gaseous contaminant, including volatile
Property organic matter, volatile organic matter, semi-volatile organic matter, formaldehyde is one of them, and the pollutant that people are of greatest concern
One of, the Form aldehyde release cycle of house decoration material is up to 3-15, and human body is chronically in the formaldehyde environment of doses, can
Cause chronic respiratory disease, reduce resistance etc., according to《Indoor Air Quality standards（GB/T 18803-2002）》Regulation,
Indoor formaldehyde concentration should be less than 0.1 milligram/cubic metre, and therefore, the purification of formaldehyde is most important for health.
In general, removing the method for formaldehyde has many kinds, including active carbon adsorption, photocatalyst decomposition method, and catalysis
Oxidizing process, wherein catalytic oxidation have that removal efficiency is high, applied widely, directly can be first the advantages that non-secondary pollution
Aldehyde changes into carbon dioxide and water, and the key of the technology is the development of catalyst.
Catalytic oxidation includes noble metal catalyst, metal oxide catalyst etc. except the catalyst of formaldehyde.Noble metal is urged
Agent PARA FORMALDEHYDE PRILLS(91,95) has excellent removal capacity, but its cost is higher.Its aboundresources of metal oxide catalyst, cost is just
Preferably, wherein oxidation manganese-based catalyst has preferable low temperature formaldehyde remove function, but aoxidize manganese-based catalyst and be mostly only limitted to
The research of fine catalyst, such as Chinese invention patent CN107185553A, CN107185550A, CN107233883A, with reality
Apply an also very long segment distance in border.Manganese oxide powder is developed into larger particles in the present invention（Diameter about 2-3 millimeters）Ball
Shape nano composite material, the material can directly carry out follow-up filling, the cleaning module in air cleaning facility are such as made, should
Material has preferable purifying formaldehyde effect at normal temperatures and pressures, and formaldehyde clearance can reach 83%.
The content of the invention
For problem present in current technology, present invention aims at：A kind of spherical receiving for formaldehyde removal is provided
The preparation method of nano composite material.
Still a further object of the present invention is：Product prepared by the above method is provided.
Another object of the present invention is：The application of the said goods is provided.
The object of the invention is realized by following proposal：A kind of preparation side of the ball shaped nano composite removed for formaldehyde
Method, by preparation of nano composite mortar, it is evenly coated in spheroid carrier surface filming；In nano composite slurry preparation process only
Add aqueous binders, the mobility only using deionized water as dispersant and exclusive solvents control slurry, according to the viscous of slurry
Knot ability adds curing agent, comprises the following steps that：
The first step, aqueous binders and deionized water are well mixed, then add curing agent, wherein, the matter of aqueous binders
Amount fraction is 10-20%, and curing agent is the 0-5% of binding agent quality；
Second step, manganese oxide powder is mixed with water, a nanometer wet pulp is made with scattered, stirring mode, wherein, the matter of manganese oxide
Amount fraction is 15-50%；
3rd step, the liquid of the first step is added in manufactured wet pulp, at the uniform velocity mixes, produces nano composite slurry；
4th step, obtained nano composite slurry is mixed with spheroid carrier, make slurry in carrier surface homogeneous film formation, wherein ball
A diameter of 2-3 millimeters of shape carrier；
5th step, by the above-mentioned carrier coated in 80-100o30-90 minutes are dried in C baking oven, produce ball shaped nano composite wood
Material.
The invention provides a kind of ball shaped nano that fine catalyst is developed into diameter about 2-3 millimeter larger particles is compound
The method of material, by preparation of nano composite mortar, it is evenly coated in spheroid carrier surface filming.It is prepared by nano composite slurry
During only add aqueous binders, the mobility only using deionized water as dispersant and exclusive solvents control slurry, according to
The cementitiousness of slurry adds appropriate curing agent.
On the basis of such scheme, described aqueous binders are waterborne polyurethane binders, and described curing agent is parent
Water modified isocyanate curing agent, described spheroid carrier are aluminum oxide, one kind in molecular sieve.
The present invention provides a kind of ball shaped nano composite removed for formaldehyde, it is characterised in that according to any institute
The method of stating is prepared.
The present invention provides a kind of application of ball shaped nano composite in purifying formaldehyde.
The specific reaction condition of above-mentioned application is as follows：Reaction temperature is 25oC, reaction pressure are normal pressure, total gas flow rate
500 ml/mins, reaction gas composition is 5-7 micrograms/cubic meter formaldehyde, and remaining is air.
The present invention has advantages below：
（1）The raw material used in nano composite material is prepared to be easy to get, only with standard aqueous binding agent and curing agent, only with go from
Sub- water is environment-friendly as exclusive solvents and dispersant.
（2）Preparation technology is simple, makes slurry in carrier surface homogeneous film formation.
（3）The nano composite material wearability of preparation is preferable.
Embodiment
It is described in detail with reference to specific embodiment：The present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operation process, but protection scope of the present invention is not limited to following embodiments.
Embodiment 1
Weigh 17.0 grams of manganese oxide to be added in 17.0 ml deionized waters, be uniformly dispersed, manganese oxide wet pulp is made.Weigh 50.0
Gram waterborne polyurethane binders, are added in 200 ml deionized waters, stir, and add 2.50 grams of hydrophilic modifying isocyanic acids
Ester curing agent, continue to stir, it is at the uniform velocity added in manganese oxide wet pulp, stirs, nano composite slurry is made.Claim
500 grams of alumina supports are taken, are added in nano composite slurry, is well mixed, is then placed in 90 oCDried in baking oven, until complete
White drying, nano composite material is obtained, labeled as NM1.
0.20 gram of NM1 is weighed in crystal reaction tube, 25oUnder C normal pressures, the gaseous mixture of formaldehyde and air, gas are passed through
The ml/min of total flow 500, concentration of formaldehyde are 5.8 micrograms/cubic meter, and the highest purification efficiency of formaldehyde is 83%.
Embodiment 2
Compared with Example 1 compared with the difference is that the quality of curing agent is 0.50 gram, formaldehyde highest purification efficiency is 74%.
Embodiment 3
Compared with Example 1 compared with the difference is that the quality of manganese oxide is 3.0 grams, the quality of curing agent is 1.0 grams, formaldehyde highest
Purification efficiency is 58%.
Embodiment 4
Compared with Example 1 compared with the difference is that the quality of manganese oxide is 3.0 grams, the quality of curing agent is 1.5 grams, formaldehyde highest
Purification efficiency is 60%.
Embodiment 5
Compared with Example 1 compared with the difference is that the quality of waterborne polyurethane binders is 25 grams, the quality of curing agent is 1.25
Gram, formaldehyde highest purification efficiency is 69%.
Claims (5)
1. it is a kind of for formaldehyde remove ball shaped nano composite preparation method, it is characterised in that the material be by with
Nano composite slurry processed, it is evenly coated in spheroid carrier surface filming；Only added in nano composite slurry preparation process water-based
Binding agent, the mobility only using deionized water as dispersant and exclusive solvents control slurry, adds according to the cementitiousness of slurry
Agent is reinforced, is comprised the following steps that：
The first step, aqueous binders and deionized water are well mixed, then add curing agent, wherein, the matter of aqueous binders
Amount fraction is 10-20%, and curing agent is the 0-5% of binding agent quality；
Second step, manganese oxide powder is mixed with water, a nanometer wet pulp is made with scattered, stirring mode, wherein, the matter of manganese oxide
Amount fraction is 15-50%；
3rd step, the liquid of the first step is added in manufactured wet pulp, at the uniform velocity mixes, produces nano composite slurry；
4th step, obtained nano composite slurry is mixed with spheroid carrier, make slurry in carrier surface homogeneous film formation, wherein ball
A diameter of 2-3 millimeters of shape carrier；
5th step, by the above-mentioned carrier coated in 80-100o30-90 minutes are dried in C baking oven, produce ball shaped nano composite wood
Material.
2. it is used for the preparation method for the ball shaped nano composite that formaldehyde removes according to claim 1, it is characterised in that institute
The aqueous binders stated are waterborne polyurethane binders, and described curing agent is hydrophilic modifying isocyanate curing agent, described
Spheroid carrier is aluminum oxide, one kind in molecular sieve.
A kind of 3. ball shaped nano composite removed for formaldehyde, it is characterised in that method system according to claim 1 or claim 2
It is standby to obtain.
4. application of the ball shaped nano composite in purifying formaldehyde according to claim 3.
5. application of the ball shaped nano composite in purifying formaldehyde according to claim 3, it is characterised in that specific reaction
Condition is as follows：Under normal temperature, normal pressure, the ml/min of total gas flow rate 500, reaction gas composition is 5-7 micrograms/cubic meter formaldehyde, its
Remaining is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099481.6A CN107774131A (en) | 2017-11-09 | 2017-11-09 | Preparation method of ball shaped nano composite removed for formaldehyde and products thereof and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099481.6A CN107774131A (en) | 2017-11-09 | 2017-11-09 | Preparation method of ball shaped nano composite removed for formaldehyde and products thereof and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107774131A true CN107774131A (en) | 2018-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711099481.6A Pending CN107774131A (en) | 2017-11-09 | 2017-11-09 | Preparation method of ball shaped nano composite removed for formaldehyde and products thereof and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107774131A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386146C (en) * | 2004-11-26 | 2008-05-07 | 罗门哈斯电子材料有限公司 | Uv curable catalyst compositions |
| CN105854592A (en) * | 2016-04-28 | 2016-08-17 | 清华大学 | Air purifying material and preparation method and application thereof |
-
2017
- 2017-11-09 CN CN201711099481.6A patent/CN107774131A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386146C (en) * | 2004-11-26 | 2008-05-07 | 罗门哈斯电子材料有限公司 | Uv curable catalyst compositions |
| CN105854592A (en) * | 2016-04-28 | 2016-08-17 | 清华大学 | Air purifying material and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙德彬等编著: "《家具表面装饰工艺技术》", 30 April 2009, 北京：中国轻工业出版社 * |
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Application publication date: 20180309 |