CN109174010A - One kind is except modified formaldehyde silica gel material and preparation method thereof - Google Patents
One kind is except modified formaldehyde silica gel material and preparation method thereof Download PDFInfo
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- CN109174010A CN109174010A CN201811010165.1A CN201811010165A CN109174010A CN 109174010 A CN109174010 A CN 109174010A CN 201811010165 A CN201811010165 A CN 201811010165A CN 109174010 A CN109174010 A CN 109174010A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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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
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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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
- B01D53/81—Solid phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
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- 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
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Abstract
To overcome the problems, such as that it is low that existing methyl aldehyde adsorption material has long-time service generation tart flavour, adsorption efficiency and adsorbance, the present invention provides one kind to remove modified formaldehyde silica gel material, including modified component and matrix component: the modified component includes: trishydroxymethylaminomethane；Described matrix component includes: inorganic silica gel；The inorganic silica gel is dry porous structure silica gel.Meanwhile the invention also discloses the above-mentioned preparation methods except modified formaldehyde silica gel material.The modified formaldehyde silica gel material provided by the invention that removes effectively can carry out adsorption treatment to the formaldehyde in air.
Description
Technical field
The invention belongs to gas purification material technical fields, and in particular to one kind removes modified formaldehyde silica gel material and its preparation
Method.
Background technique
Formaldehyde is determined as carcinogenic and teratogenesis substance, toxicity with higher, in house fitting-up by the World Health Organization
How much some organic household coating used in the process or organic coating for wall surface and some finishing materials can release some first
Aldehyde causes content of formaldehyde in the space in finishing or just having completed finishing to severely exceed, has an impact to human health, more seriously
, the underproof coating in part or finishing material meeting sustained release formaldehyde, and then have an adverse effect for a long time to human body.
Existing common methyl aldehyde adsorption material be folder carbon cloth, folder carbon cloth be by the way that absorbent charcoal material is arranged on non-woven fabrics,
To be adsorbed by active carbon to the formaldehyde in filtering gas, however this kind folder carbon cloth can not during long-time service
It will appear tart flavour with avoiding, to influence gas purifying effect.
Inorganic silica gel is a kind of aqueous silicon dioxide of high microcellular structure, nontoxic, tasteless, and chemical property is stablized, and tool is strong
Moisture pick-up properties, be a kind of high activity adsorbent material.Inorganic silica gel is often used as desiccant.It is existing the study found that inorganic
Silica gel has preferable adsorption effect for polar substances, but this kind is adsorbed as physical absorption, the efficiency and adsorbance of absorption
It is limited.
Summary of the invention
There is a problem of that long-time service generation tart flavour, adsorption efficiency and adsorbance are low for existing methyl aldehyde adsorption material, this
Invention provides a kind of except modified formaldehyde silica gel material and preparation method thereof.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
On the one hand, one embodiment of the invention provides a kind of except modified formaldehyde silica gel material, including modified component and matrix
Component:
The modified component includes: trishydroxymethylaminomethane；
Described matrix component includes: inorganic silica gel；
The inorganic silica gel is dry porous structure silica gel.
The present invention provides a kind of new silica gel material modified structures, so that silica gel material can be used as the gas of formaldehyde absorbing
Body scavenging material is modified inorganic silica gel specifically, using trishydroxymethylaminomethane, in the first rank of formaldehyde absorbing
Section, the porous structure formed using silica gel form physisorption to the formaldehyde in surrounding air, and the porous structure of silica gel is same
When increase the contact area of formaldehyde and trishydroxymethylaminomethane so that absorption formaldehyde and silica gel inter-modification three hydroxyl first
Base aminomethane is come into full contact with；On the other hand, trishydroxymethylaminomethane can at room temperature with the formaldehyde of absorption
Reaction is learned, to promote the further absorption of silica gel PARA FORMALDEHYDE PRILLS(91,95)；There is collaboration in modified trishydroxymethylaminomethane and silica gel
Effect, effectively improves material itself to the infiltration rate of formaldehyde in air, to reduce the concentration of formaldehyde in domestic environment, and
The absorbent properties of the modified silica-gel material are stablized, and will not generate peculiar smell being used for a long time.
Optionally, the inorganic silica gel is nutty structure.
Optionally, the mesh number of the inorganic silica gel is 30~60 mesh.
Optionally, described except modified formaldehyde silica gel material includes following components by weight percent:
90~98 parts of inorganic silica gel；2~10 parts of trishydroxymethylaminomethane.
On the other hand, another embodiment of the present invention provides the preparation sides as described above for removing modified formaldehyde silica gel material
Method, comprising the following steps:
Trishydroxymethylaminomethane is put into solvent and is dissolved, tris solution is obtained；
Dry inorganic silica gel is put into tris solution, inorganic silica gel adsorbs trihydroxy methyl amino
Dichloromethane, trishydroxymethylaminomethane infiltrate into inside inorganic silica gel；
By the inorganic silica gel drying after adsorbent solution or dry to obtain the modified inorganic silica gel of trishydroxymethylaminomethane.
Optionally, PH regulator, moisturizer and bleeding agent are also added in the tris solution.
Optionally, the PH regulator includes one of triethanolamine, ammonium hydroxide, acetamide or a variety of；
The moisturizer includes glycerol；
The bleeding agent includes in neopelex, hexadecyltrimethylammonium chloride and cetyl benzenesulfonic acid
It is one or more.
Optionally, the tris solution includes following components by weight percent:
2~10 parts of trishydroxymethylaminomethane, 15~25 parts of solvent, 0.1~2 part of PH regulator, 0.1~3 part of moisturizer,
0.1~2 part of bleeding agent.
Optionally, the solvent includes water.
Optionally, the temperature for drying inorganic silica gel is 100 DEG C~120 DEG C.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
One embodiment of the invention discloses a kind of except modified formaldehyde silica gel material, including modified component and matrix component:
The modified component includes: trishydroxymethylaminomethane；
Described matrix component includes: inorganic silica gel；
The inorganic silica gel is dry porous structure silica gel.
It is provided by the invention that silica gel is modified except modified formaldehyde silica gel material uses trishydroxymethylaminomethane,
The first stage of formaldehyde absorbing, the porous structure formed using silica gel form physisorption to the formaldehyde in surrounding air,
The porous structure of silica gel increases the contact area of formaldehyde and trishydroxymethylaminomethane simultaneously, so that the formaldehyde and silica gel of absorption
The trishydroxymethylaminomethane of inter-modification is come into full contact with；On the other hand, trishydroxymethylaminomethane can at room temperature with
The formaldehyde of absorption chemically reacts, to promote the further absorption of silica gel PARA FORMALDEHYDE PRILLS(91,95)；Modified trihydroxy methyl amino first
There is synergistic effect in alkane and silica gel, effectively improve material itself to the infiltration rate of formaldehyde in air, to reduce household ring
Concentration of formaldehyde in border, and the absorbent properties of the modified silica-gel material are stablized, and will not generate peculiar smell being used for a long time.
The inorganic silica gel itself is hygroscopic, need to keep drying, could form porous adsorption structure, when the inorganic silica gel
Water content it is excessively high when, then its gas sorption ability accordingly reduces.
Specifically, inhaling water saturated water content by the inorganic silica gel is in terms of 100%, the water content of the inorganic silica gel exists
Between 0%~30%, and the water content of the inorganic silica gel is lower, and the suction-operated that PARA FORMALDEHYDE PRILLS(91,95) plays is stronger.
In some embodiments, the inorganic silica gel is nutty structure.
In a more preferred embodiment, the mesh number of the inorganic silica gel is 30~60 mesh.
In some embodiments, described except modified formaldehyde silica gel material includes following components by weight percent:
90~98 parts of inorganic silica gel；2~10 parts of trishydroxymethylaminomethane.
It should be noted that above-mentioned components by weight percent is only that the present embodiment is preferred, when the weight of the trishydroxymethylaminomethane
When amount number is too low, also theoretically there is lesser promotion effect, but the adsorption effect to the formaldehyde absorbing effect of inorganic silica gel
Promotion it is more undesirable；When the parts by weight of the trishydroxymethylaminomethane are excessively high, then the object to inorganic silica gel is easy
Reason adsorption capacity has an adverse effect.
Another embodiment of the present invention provides the preparation method as described above for removing modified formaldehyde silica gel material, including it is following
Step:
Trishydroxymethylaminomethane is put into solvent and is dissolved, tris solution is obtained；
Dry inorganic silica gel is put into tris solution, inorganic silica gel adsorbs trihydroxy methyl amino
Dichloromethane, trishydroxymethylaminomethane infiltrate into inside inorganic silica gel；
By the inorganic silica gel drying after adsorbent solution or dry to obtain the modified inorganic silica gel of trishydroxymethylaminomethane.
After the inorganic silica gel is placed in the tris solution, inorganic silica gel can be to trihydroxy methyl ammonia
Methylmethane solution is adsorbed, and when the amount abundance of tris solution, it is full that the inorganic silica gel can reach absorption
With trishydroxymethylaminomethane is dispersed in the inorganic silica gel with solvent at this time, then by way of drying or drying
By the solvent removal in inorganic silica gel, inorganic silica gel can form hole in the inside of inorganic silica gel during solvent removal,
Trishydroxymethylaminomethane is made to be covered in the pore surface of inorganic silica gel simultaneously, so that trishydroxymethylaminomethane is deposited with air
In biggish contact area, to improve the absorption efficiency of formaldehyde in air.
The inorganic silica gel can be obtained by commercially available or self-control.
In the present embodiment, dry inorganic silica gel is first obtained, then tris solution is penetrated into inorganic
In silica gel.In other embodiments, trishydroxymethylaminomethane is such as added during producing inorganic silica gel, due to being used for first
The trishydroxymethylaminomethane that aldehyde absorbs is larger, will affect the pH value in inorganic silica gel preparation process, to influence inorganic silica gel
Preparation, and solvent content is high in inorganic silica gel preparation process, need to expend a large amount of trishydroxymethylaminomethanes.
In some embodiments, the inorganic silica gel of the drying the preparation method comprises the following steps:
Sodium metasilicate is generated by silica and alkali reaction；
Sodium metasilicate is hydrolyzed in acid condition, obtains silicic acid gel；
Dehydrated crosslinking is carried out to silicic acid gel, obtains dry inorganic silica gel.
It should be noted that the inorganic silica gel of the drying can also be prepared by existing common method.
In some embodiments, PH regulator, moisturizer and infiltration are also added in the tris solution
Saturating agent.
In some embodiments, the PH regulator includes one of triethanolamine, ammonium hydroxide, acetamide or a variety of.
The PH regulator is used to adjust the pH value of the tris solution.
The moisturizer includes glycerol.
The bleeding agent includes in neopelex, hexadecyltrimethylammonium chloride and cetyl benzenesulfonic acid
It is one or more.
The bleeding agent is for improving osmotic efficiency of the trishydroxymethylaminomethane in the inorganic silica gel, favorably
In dispersing uniformity of the raising trishydroxymethylaminomethane in inorganic silica gel.
In some embodiments, the tris solution includes following components by weight percent:
2~10 parts of trishydroxymethylaminomethane, 15~25 parts of solvent, 0.1~2 part of PH regulator, 0.1~3 part of moisturizer,
0.1~2 part of bleeding agent.
The trishydroxymethylaminomethane has stronger polarity, and the inorganic silica gel has strong absorption to polar solvent
Ability, in order to guarantee trishydroxymethylaminomethane in a solvent be completely dissolved and absorption of the inorganic silica gel to solvent, preferably
Using the stronger solvent of polarity, such as water or ethyl alcohol etc..
In some embodiments, the solvent includes water.
In some embodiments, the temperature for drying inorganic silica gel is 100 DEG C~120 DEG C, when at such a temperature, capable of guaranteeing
The removing of solvent in inorganic silica gel, while avoiding the oxidation of trishydroxymethylaminomethane.
The present invention is further detailed by the following examples.
Embodiment 1
The present embodiment is for illustrating the preparation method disclosed by the invention except modified formaldehyde silica gel material, including following operation
Step:
Step 1: the commercially available drying inorganic silica gel not absorbed water of use, it is excessively spare after 30-60 mesh；
Step 2: by the trishydroxymethylaminomethane of 2 parts by weight, the triethanolamine of 1 parts by weight, the glycerol of 1 parts by weight, 1
It is dissolved in the solvent of neopelex 15 parts by weight of investment of parts by weight, obtains tris solution；
Step 3: dry inorganic silica gel is put into tris solution, and inorganic silica gel adsorbs three hydroxyls
To being saturated, trishydroxymethylaminomethane infiltrates into inside inorganic silica gel aminomethane solution；
Step 4: drying at 120 DEG C of inorganic silica gel after adsorbent solution is obtained into the modified nothing of trishydroxymethylaminomethane
Machine silica gel.
Embodiment 2
The present embodiment is for illustrating the preparation method disclosed by the invention except modified formaldehyde silica gel material, including following operation
Step:
Step 1: the commercially available drying inorganic silica gel not absorbed water of use, it is excessively spare after 30-60 mesh；
Step 2: by the trishydroxymethylaminomethane of 5 parts by weight, the ammonium hydroxide of 1 parts by weight, the glycerol of 1 parts by weight, 1 weight
It is dissolved in the solvent of hexadecyltrimethylammonium chloride 20 parts by weight of investment of part, obtains tris solution；
Step 3: dry inorganic silica gel is put into tris solution, and inorganic silica gel adsorbs three hydroxyls
To being saturated, trishydroxymethylaminomethane infiltrates into inside inorganic silica gel aminomethane solution；
Step 4: drying at 110 DEG C of inorganic silica gel after adsorbent solution is obtained into the modified nothing of trishydroxymethylaminomethane
Machine silica gel.
Embodiment 3
The present embodiment is for illustrating the preparation method disclosed by the invention except modified formaldehyde silica gel material, including following operation
Step:
Step 1: the commercially available drying inorganic silica gel not absorbed water of use, it is excessively spare after 30-60 mesh；
Step 2: by the trishydroxymethylaminomethane of 10 parts by weight, the ammonium hydroxide of 1 parts by weight, the glycerol of 1 parts by weight, 1 weight
It is dissolved in the solvent of hexadecyltrimethylammonium chloride 25 parts by weight of investment of part, obtains tris solution；
Step 3: dry inorganic silica gel is put into tris solution, and inorganic silica gel adsorbs three hydroxyls
To being saturated, trishydroxymethylaminomethane infiltrates into inside inorganic silica gel aminomethane solution；
Step 4: drying at 110 DEG C of inorganic silica gel after adsorbent solution is obtained into the modified nothing of trishydroxymethylaminomethane
Machine silica gel.
Comparative example 1
This comparative example provides a kind of commercially available inorganic silica gel.
It is excessively spare after 30-60 mesh using the commercially available drying inorganic silica gel not absorbed water.
Performance test
The inorganic silica gel that the modified silica-gel material and comparative example 1 be prepared to above-described embodiment 1~3 provides carries out as follows
Performance test:
Test process are as follows: in 30m3Cube test storehouse in be arranged formaldehyde tester, change what Examples 1 to 3 was prepared
Property silica gel material and the inorganic silica gel that provides of comparative example 1 choose identical grammes per square metre and clamping cloth material be made by folder charcoal mode for cloth, the clamping cloth
Identical filter is made by discounting in material, is tested with the climing moral machine of Loew.
Table 1
The test result of Examples 1 to 3 and comparative example 1 can be seen that using trishydroxymethylaminomethane to nothing from table 1
Machine silica gel is modified, and effectively can carry out adsorption treatment to the free formaldehyde in enclosed environment, reduces concentration of formaldehyde, and phase
For the inorganic silica gel of unused trishydroxymethylaminomethane processing, with the modified inorganic silica gel of trishydroxymethylaminomethane in formaldehyde
Treatment effeciency on be greatly improved.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. one kind removes modified formaldehyde silica gel material, which is characterized in that including modified component and matrix component:
The modified component includes: trishydroxymethylaminomethane；
Described matrix component includes: inorganic silica gel；
The inorganic silica gel is dry porous structure silica gel.
2. according to claim 1 remove modified formaldehyde silica gel material, which is characterized in that the inorganic silica gel is graininess knot
Structure.
3. according to claim 2 remove modified formaldehyde silica gel material, which is characterized in that the mesh number of the inorganic silica gel is 30
~60 mesh.
4. according to claim 1 remove modified formaldehyde silica gel material, which is characterized in that described to remove modified formaldehyde silica gel material
Including following components by weight percent:
90~98 parts of inorganic silica gel；2~10 parts of trishydroxymethylaminomethane.
5. as described in any one of Claims 1 to 4 except modified formaldehyde silica gel material preparation method, which is characterized in that
The following steps are included:
Trishydroxymethylaminomethane is put into solvent and is dissolved, tris solution is obtained；
Dry inorganic silica gel is put into tris solution, inorganic silica gel adsorbs trishydroxymethylaminomethane
Solution, trishydroxymethylaminomethane infiltrate into inside inorganic silica gel；
By the inorganic silica gel drying after adsorbent solution or dry to obtain the modified inorganic silica gel of trishydroxymethylaminomethane.
6. the preparation method according to claim 5 except modified formaldehyde silica gel material, which is characterized in that the trihydroxy methyl
PH regulator, moisturizer and bleeding agent are also added in aminomethane solution.
7. the preparation method according to claim 6 except modified formaldehyde silica gel material, which is characterized in that the PH regulator
Including one of triethanolamine, ammonium hydroxide, acetamide or a variety of；
The moisturizer includes glycerol；
The bleeding agent includes one in neopelex, hexadecyltrimethylammonium chloride and cetyl benzenesulfonic acid
Kind is a variety of.
8. the preparation method according to claim 6 except modified formaldehyde silica gel material, which is characterized in that the trihydroxy methyl
Aminomethane solution includes following components by weight percent:
2~10 parts of trishydroxymethylaminomethane, 15~25 parts of solvent, 0.1~2 part of PH regulator, 0.1~3 part of moisturizer, infiltration
0.1~2 part of agent.
9. the preparation method according to claim 5 except modified formaldehyde silica gel material, which is characterized in that the solvent includes
Water.
10. the preparation method according to claim 5 except modified formaldehyde silica gel material, which is characterized in that drying inorganic silicon
The temperature of glue is 100 DEG C~120 DEG C.
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Cited By (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314506A (en) * | 2019-08-06 | 2019-10-11 | 山东鸿鹄佳业环保科技有限公司 | A kind of space deodorant and preparation method thereof |
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