CN107866207A - A kind of preparation method of permanent seal cooling formaldehyde adsorbent - Google Patents
A kind of preparation method of permanent seal cooling formaldehyde adsorbent Download PDFInfo
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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
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
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- 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
- B01D53/74—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
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
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- 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
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
Abstract
The invention discloses a kind of preparation method of permanent seal cooling formaldehyde adsorbent, belong to adsorbent preparing technical field.The present invention is first with polyacrylonitrile fibre through overpickling, pre-oxidation, the a series of preparation process such as charing and activation, obtain making polyacrylonitrile radical active carbon fiber by oneself, there is very strong adsorption capacity so as to assign carbon fiber, the absorption for being advantageous to PARA FORMALDEHYDE PRILLS(91,95) improves, it is modified montmorillonite used to add self-control, Ludox and bamboo charcoal, it is acidified using montmorillonite, the modification of activation etc., it is dissolved out under the action of an acid, being advantageous to the crystal layer spacing of montmorillonite in the bentonite after activation will increase, it is subsequently added into sucrose, amber and Yoghourt co-fermentation, to have sticking sucrose and amber using microorganism in Yoghourt and resolve into macromolecular carbohydrate, supply microorganism is provided to the caking property between nutriment and reinforcer, further improve the durability of formaldehyde adsorbent, with extensive prospect of the application.
Description
Technical field
The invention discloses a kind of preparation method of permanent seal cooling formaldehyde adsorbent, belong to adsorbent preparing technical field.
Background technology
Purifying formaldehyde adsorbent refers to be mainly used among life staying idle at home for the sorbing material of formaldehyde adsorption.Mainly have：
Activated silica, activated carbon, activated alumina.
Formaldehyde is typically derived from decoration, finishing material, furniture and coating etc. in life, especially with artificial board and its use
Adhesive for very, artificial board includes face artificial board, glued board, particieboard, fiberboard, composite floor board etc., and they are in life
Phenolic aldehyde and Lauxite containing formaldehyde are used during production, is shown according to statistics, domestic artificial board more than 90% uses ureaformaldehyde
Glue is suppressed, thus can no doubt produce free formaldehyde in application, is applied past in Furniture manufacture or the application of other sheet materials
Toward influence that can be certain to human body generation.In actual application, the generation of free formaldehyde includes following reason：（1）
Insufficient and remaining free formaldehyde is reacted during resins synthesis；（2）Resins synthesis is to participate in reaction formaldehyde, due to foring not
Stable group, bound formaldehyde is discharged again during hot pressing and hard board use；（3）In board making process, due to
Solid agent is added, in the presence of electrolyte, the established absorption ion layer with stability is destroyed around resin micelle,
So as to discharge formaldehyde and cause hardening of resin.
Purifying formaldehyde adsorbent can effectively adsorb the nuisances such as the formaldehyde discharged by house fitting-up, benzene, dimethylbenzene
Matter, main component are activated silicas, belong to amorphous substance, and have drawn from natural quartz sand, handle and refine by special processing process
Form, it is possessed vast specific surface area and the abundant pore structure to match with indoor harmful gas molecular size.
The planktonic bacteria being exclusively used in the harmful gas and air such as formaldehyde adsorption；Also there is adjusting air humidity simultaneously, go
Taste is mould proof, deodorizing sterilizing and other effects, thoroughly removes indoor environmental pollution.
In recent years, as living standards of the people gradually step up, air pollution problem inside rooms become increasingly conspicuous, and cause social each
The common concern on boundary.As the formaldehyde of one of main indoor air pollutants, people can be entered by respiratory system and skin
Body, it has greatly harm to human body.Therefore, the purification of formaldehyde in indoor air is significant.
Therefore invent a kind of permanent seal cooling formaldehyde adsorbent has positive effect to adsorbent preparing technical field.
The content of the invention
The technical problems to be solved by the invention：It is physical method for current common formaldehyde adsorbent absorption, causes
Except DeGrain is low with efficiency be present and the defects of secondary pollution, there is provided a kind of preparation side of permanent seal cooling formaldehyde adsorbent
Method.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of preparation method of permanent seal cooling formaldehyde adsorbent, it is characterised in that specifically preparation process is：
（1）Weigh 0.8~1.0kg polyacrylonitrile fibres and be put into 30~50L liquor zinci chloridis and soak, natural air drying after immersion,
Place into electric heating constant-temperature blowing drying box, first with 2 DEG C/min speed heat temperature raising, then added with 0.5 DEG C/min speed
Heat heating, insulation continue the speed heat temperature raising with 0.5 DEG C/min after polyacrylonitrile fibre color is in brown color, are incubated
Until polyacrylonitrile fibre color is in black, after taking-up, place into kiln, carbonized under argon gas protection, what is carbonized is poly-
Dralon；
（2）The polyacrylonitrile fibre of above-mentioned charing is put into potassium hydroxide solution and soaked, is spontaneously dried after immersion, is finally putting into
Activated in Muffle furnace, discharge, as make polyacrylonitrile radical active carbon fiber by oneself；
（3）Weigh 0.6~0.8kg montmorillonites and be put into 6~8L sulfuric acid solutions and stir, continue to activate, obtain activating montmorillonite, use
Deionized water washing activation montmorillonite, takes out sediment after centrifugation, sediment is put into after being dried in baking oven, continues to grind, and
100 mesh sieves are crossed, obtain modified self-control montmorillonite powder；
（4）Count in parts by weight, weigh self-control polyacrylonitrile radical active carbon fiber, modified self-control montmorillonite powder, bamboo charcoal respectively
It is placed in the fermentation tank with sucrose, amber and Yoghourt, is sealed by fermentation with Ludox mixing, takes out tunning, use deionization
After water rinses tunning, then phenol and titanium dioxide are added, continue to stir, drying and grinding, discharged, you can permanent seal cooling first is made
Aldehyde adsorbent.
Step（1）The mass fraction of described liquor zinci chloridi is 25%, and soak time is 8~10min, and heating first rises
Temperature is 160~180 DEG C, and it is 190~200 DEG C to reheat warming temperature, and it is 210~220 DEG C to continue heat temperature raising temperature, charcoal
It is 800~1000 DEG C to change temperature, and carbonization time is 1~2h.
Step（2）The polyacrylonitrile fibre and mass fraction of described charing are the mass ratio of 20% potassium hydroxide solution
For 1：8, soak time is 10~12min, and activation temperature is 600~800 DEG C, and soak time is 45~60min.
Step（3）The mass fraction of described sulfuric acid solution is 25%, and whipping temp is 80~100 DEG C, mixing time 10
~12min, it is 200~400 DEG C to continue activation temperature, and soak time is 1~3h, and regulation pH value is 4~5, drying temperature 90
~110 DEG C, drying time is 20~30min, and continuation milling time is 12~16min.
Step（4）Described meter in parts by weight, 30~40 parts of self-control polyacrylonitrile radical active carbon fibers, 16 are weighed respectively
~20 parts of modified self-control montmorillonite powder, Ludox, 6~8 parts of sugarcanes of 10~12 parts of bamboo charcoals and 3~5 parts of mass fractions for 15%
Sugar, 3~5 parts of ambers and 5~7 portions of Yoghourts and 4~6 parts of phenol and 6~8 parts of titanium dioxide, fermentation temperature are 35~45 DEG C, hair
The ferment time is 7~9 days, and whipping temp is 45~65 DEG C, and mixing time is 1~3h.
Compared with other method, advantageous effects are the present invention：
（1）The present invention was prepared first with polyacrylonitrile fibre through overpickling, pre-oxidation, charing and activation etc. are a series of
Journey, obtain making polyacrylonitrile radical active carbon fiber by oneself, when being carbonized due to the polyacrylonitrile after pre-oxidation in inert gas,
Non-carbon element is cracked from the stabilized macromolecular of cyclisation and come out, with volatile matter CO, H2O、N2Removed etc. form, so as to form six
Angular macromolecular class graphite deck structure, and the microstructure of carbon is stacked into, polyacrylonitrile carbon fiber is in oxidisability in addition
Under gas effect, it the crystal edge in high polymer carbon microstructure is oxidized etching and form various oxygen-containing functional groups,
Also oxidized activating process is also the process of a pore-creating, carbon fiber is formed a porous structure, has very big ratio surface
Product, has very strong adsorption capacity so as to assign carbon fiber, and the adsorbance for being advantageous to PARA FORMALDEHYDE PRILLS(91,95) improves, so as to improve formaldehyde absorbing
The durability of agent；
（2）The present invention, which adds, makes modified montmorillonite used, Ludox and bamboo charcoal by oneself, using the modification of the acidified, activation of montmorillonite etc.,
It is used two monovalence hydrogen ions in sulfuric acid replace divalent calcium ions or magnesium ion in montmorillonites, montmorillonite is produced chemistry living
Property, and by a pair of aluminium ions in montmorillonite and two pairs of hydroxys etc., remove under the action of an acid, be advantageous to the swelling after activation
The crystal layer spacing increase of montmorillonite, is formd with the big porous active material of micropore network, specific surface area, then in soil
Using the Ludox with adsorptivity and bamboo charcoal reinforcement, its adsorptivity is further enhanced, improve the resistance to of formaldehyde adsorbent again
Long property, sucrose, amber and Yoghourt co-fermentation are subsequently added into, and will have sticking sucrose and amber using microorganism in Yoghourt
Macromolecular carbohydrate is resolved into, the caking property between nutriment and reinforcer is provided to microorganism, strengthens the absorption of system
Property；
（3）The present invention continuously adds phenol and titanium dioxide, after formaldehyde adsorbent absorbs formaldehyde, because phenol and formaldehyde are easy
Reaction generates harmless phenolic resin, and titanium dioxide is under the irradiation of sunshine, the wherein micro ultraviolet light of utilization, dioxy
Change titanium just can degradation of formaldehyde, and under the irradiation of uviol lamp, the ultraviolet light of high intensity can strengthen titanium dioxide PARA FORMALDEHYDE PRILLS(91,95)
Photocatalytic degradation capability, the reproducibility of formaldehyde adsorbent is improved jointly, further improve the durability of formaldehyde adsorbent, have
Extensive prospect of the application.
Embodiment
Weigh 0.8~1.0kg polyacrylonitrile fibres and be put into the liquor zinci chloridi that 30~50L mass fractions are 25% and soak 8
~10min, natural air drying after immersion, is placed into electric heating constant-temperature blowing drying box, first with 2 DEG C/min speed heat temperature raising
190~200 DEG C are heated to 160~180 DEG C, then with 0.5 DEG C/min speed, insulation is until polyacrylonitrile fibre color
After brown color, continue to be heated to 210~220 DEG C with 0.5 DEG C/min speed, continue insulation until polyacrylonitrile fibre
Color is in black, after taking-up, is placed into 800~1000 DEG C of kiln, carbonizes 1~2h under argon gas protection, is carbonized
Polyacrylonitrile fibre, it is in mass ratio 1：8 are put into the polyacrylonitrile fibre of charing the potassium hydroxide solution that mass fraction is 20%
10~12min of middle immersion, is spontaneously dried after immersion, is finally putting into Muffle furnace, and 45~60min is activated at 600~800 DEG C,
Discharging, as makes polyacrylonitrile radical active carbon fiber by oneself, weighs 0.6~0.8kg montmorillonites and is put into 6~8L mass fractions as 25%
Sulfuric acid solution in, at 80~100 DEG C stir 10~12min, continue at 200~400 DEG C activate 1~3h, activated
Montmorillonite, activation montmorillonite is washed with deionized, and adjusts pH value to 4~5, take out sediment after centrifugation, sediment is put
Enter after drying 20~30min in 90~110 DEG C of baking oven, continue 12~16min of grinding, and cross 100 mesh sieves, obtain being modified self-control
Montmorillonite powder, is counted in parts by weight, weighs 30~40 parts of self-control polyacrylonitrile radical active carbon fibers, 16~20 parts of modifications respectively
The Ludox mixing that self-control montmorillonite powder, 10~12 parts of bamboo charcoals and 3~5 parts of mass fractions are 15% is placed in 6~8 parts of sugarcanes
In the fermentation tank of sugar, 3~5 parts of ambers and 5~7 portions of Yoghourts, it is sealed by fermentation 7~9 days at 35~45 DEG C, takes out tunning,
After deionized water rinsing tunning, then 4~6 parts of phenol and 6~8 parts of titanium dioxide are added, continue to stir at 45~65 DEG C
Mix 1~3h, drying and grinding, discharging, you can permanent seal cooling formaldehyde adsorbent is made.
Example 1
Weigh 0.8kg polyacrylonitrile fibres and be put into the liquor zinci chloridi that 30L mass fractions are 25% and soak 8min, after immersion certainly
So air-dry, place into electric heating constant-temperature blowing drying box, be heated to 160 DEG C first with 2 DEG C/min speed, then with 0.5
DEG C/min speed is heated to 190 DEG C, after insulation is until polyacrylonitrile fibre color is in brown color, continue with 0.5 DEG C/
Min speed is heated to 210 DEG C, continue insulation until polyacrylonitrile fibre color be in black, after taking-up, place into 800
DEG C kiln in, argon gas protection under carbonize 1h, the polyacrylonitrile fibre carbonized, be in mass ratio 1：8 gathering charing
Dralon, which is put into the potassium hydroxide solution that mass fraction is 20%, soaks 10min, spontaneously dries, is finally putting into after immersion
In Muffle furnace, 45min is activated at 600 DEG C, is discharged, is as made polyacrylonitrile radical active carbon fiber by oneself, weigh 0.6kg montmorillonites
It is put into the sulfuric acid solution that 6L mass fractions are 25%, stirs 10min at 80 DEG C, continue to activate 1h at 200 DEG C, lived
Change montmorillonite, activation montmorillonite is washed with deionized, and adjust pH value to 4, take out sediment after centrifugation, sediment is put into
After drying 20min in 90 DEG C of baking oven, continue to grind 12min, and cross 100 mesh sieves, modified self-control montmorillonite powder is obtained, by weight
Number meter is measured, weighs 30 parts of self-control polyacrylonitrile radical active carbon fibers, 16 parts of modified self-control montmorillonite powder, 10 parts of bamboo charcoals respectively
It is placed in 3 parts of mass fractions for 15% Ludox mixing in the fermentation tank with 6 portions of sucrose, 3 parts of ambers and 5 portions of Yoghourts,
It is sealed by fermentation 7 days at 35 DEG C, takes out tunning, after deionized water rinsing tunning, then add 4 parts of phenol and 6 part two
Titanium oxide, continue to stir 1h, drying and grinding, discharging at 45 DEG C, you can permanent seal cooling formaldehyde adsorbent is made.
Example 2
Weigh 0.9kg polyacrylonitrile fibres and be put into the liquor zinci chloridi that 40L mass fractions are 25% and soak 9min, after immersion certainly
So air-dry, place into electric heating constant-temperature blowing drying box, be heated to 170 DEG C first with 2 DEG C/min speed, then with 0.5
DEG C/min speed is heated to 195 DEG C, after insulation is until polyacrylonitrile fibre color is in brown color, continue with 0.5 DEG C/
Min speed is heated to 215 DEG C, continue insulation until polyacrylonitrile fibre color be in black, after taking-up, place into 900
DEG C kiln in, argon gas protection under carbonize 1.5h, the polyacrylonitrile fibre carbonized, be in mass ratio 1：8 by charing
Polyacrylonitrile fibre, which is put into the potassium hydroxide solution that mass fraction is 20%, soaks 11min, spontaneously dries after immersion, finally puts
Enter in Muffle furnace, 55min is activated at 700 DEG C, discharge, as make polyacrylonitrile radical active carbon fiber by oneself, it is de- to weigh 0.7g illiteracies
Stone is put into the sulfuric acid solution that 7L mass fractions are 25%, is stirred 11min at 90 DEG C, is continued to activate 2h at 300 DEG C, obtain
Montmorillonite is activated, activation montmorillonite is washed with deionized, and adjusts pH value to 4, sediment is taken out after centrifugation, sediment is put
Enter after drying 25min in 100 DEG C of baking oven, continue to grind 14min, and cross 100 mesh sieves, obtain modified self-control montmorillonite powder,
Count in parts by weight, weigh 35 parts of self-control polyacrylonitrile radical active carbon fibers respectively, montmorillonite powder are made in 18 parts of modifications by oneself, 11 parts
The Ludox mixing that bamboo charcoal and 4 parts of mass fractions are 15% is placed in the fermentation tank with 7 portions of sucrose, 4 parts of ambers and 6 portions of Yoghourts
In, it is sealed by fermentation 8 days at 40 DEG C, takes out tunning, after deionized water rinsing tunning, then add 5 parts of phenol and 7
Part titanium dioxide, continue to stir 2h, drying and grinding, discharging at 55 DEG C, you can permanent seal cooling formaldehyde adsorbent is made.
Example 3
Weigh 1.0kg polyacrylonitrile fibres and be put into the liquor zinci chloridi that 50L mass fractions are 25% and soak 10min, after immersion certainly
So air-dry, place into electric heating constant-temperature blowing drying box, be heated to 180 DEG C first with 2 DEG C/min speed, then with 0.5
DEG C/min speed is heated to 200 DEG C, after insulation is until polyacrylonitrile fibre color is in brown color, continue with 0.5 DEG C/
Min speed is heated to 220 DEG C, continue insulation until polyacrylonitrile fibre color be in black, after taking-up, place into 1000
DEG C kiln in, argon gas protection under carbonize 2h, the polyacrylonitrile fibre carbonized, be in mass ratio 1：8 gathering charing
Dralon, which is put into the potassium hydroxide solution that mass fraction is 20%, soaks 12min, spontaneously dries, is finally putting into after immersion
In Muffle furnace, 60min is activated at 800 DEG C, is discharged, is as made polyacrylonitrile radical active carbon fiber by oneself, weigh 0.8kg montmorillonites
It is put into the sulfuric acid solution that 8L mass fractions are 25%, stirs 12min at 100 DEG C, continue to activate 3h at 400 DEG C, lived
Change montmorillonite, activation montmorillonite is washed with deionized, and adjust pH value to 5, take out sediment after centrifugation, sediment is put into
After drying 30min in 110 DEG C of baking oven, continue to grind 16min, and cross 100 mesh sieves, obtain modified self-control montmorillonite powder, press
Parts by weight meter, 40 parts of self-control polyacrylonitrile radical active carbon fibers, 20 portions of modified self-control montmorillonite powder, 12 portions of bamboos are weighed respectively
The Ludox mixing that charcoal and 5 parts of mass fractions are 15% is placed in the fermentation tank with 8 portions of sucrose, 5 parts of ambers and 7 portions of Yoghourts,
It is sealed by fermentation 9 days at 45 DEG C, takes out tunning, after deionized water rinsing tunning, then add 6 parts of phenol and 8 parts
Titanium dioxide, continue to stir 3h, drying and grinding, discharging at 65 DEG C, you can permanent seal cooling formaldehyde adsorbent is made.
Comparative example
With the permanent seal cooling formaldehyde absorbing agent method of Suzhou company as a comparison case
Permanent seal cooling formaldehyde adsorbent in permanent seal cooling formaldehyde adsorbent produced by the present invention and comparative example is subjected to performance detection, inspection
It is as shown in table 1 to survey result：
1st, method of testing：
Formaldehyde clearance method of testing：Adsorbent in the example 1~3 and comparative example of equivalent is sprayed to identical four respectively
In the room just fitted up, the concentration of formaldehyde m in room when four rooms have just been fitted up is measured first1, then measured every 1 month
Concentration of formaldehyde m between sprinkling adsorbent back room2；
Formaldehyde clearance computational methods：A=m2/m1×100%
Note：A is formaldehyde clearance；
m1Concentration of formaldehyde during just to have fitted up in room；
m2To measure concentration of formaldehyde between sprinkling adsorbent back room every 1 month.
Air quality standard GB is pressed in air pollution index API tests：3095 standard is detected；
Table 1
Note：It is acceptable level, to Health Impact unobvious when API values are less than 32；When reaching 50, chronic respiratory can be made
Tract disease patient symptom is aggravated；When reaching 100, there is serious threat to heart disease and respiratory disease patient, also have to healthy person
Slight effect；When 50~75, it should give a warning and must take the measure of pollution abatement.
It can be seen from the data of table 1, formaldehyde clearance of the regenerative formaldehyde adsorbent produced by the present invention after 3 months reaches
More than 96%, and in rising trend, excellent in durability, efficiency high, and the adsorbent in comparative example will become apparent from carrying out formaldehyde removal
Rate constantly declines, and value has reached 83% after 3 months, and formaldehyde clearance is low, and durability is inadequate, inefficient, before having wide application
Scape.
Claims (5)
1. a kind of preparation method of permanent seal cooling formaldehyde adsorbent, it is characterised in that specifically preparation process is：
（1）Weigh 0.8~1.0kg polyacrylonitrile fibres and be put into 30~50L liquor zinci chloridis and soak, natural air drying after immersion,
Place into electric heating constant-temperature blowing drying box, first with 2 DEG C/min speed heat temperature raising, then added with 0.5 DEG C/min speed
Heat heating, insulation continue the speed heat temperature raising with 0.5 DEG C/min after polyacrylonitrile fibre color is in brown color, are incubated
Until polyacrylonitrile fibre color is in black, after taking-up, place into kiln, carbonized under argon gas protection, what is carbonized is poly-
Dralon；
（2）The polyacrylonitrile fibre of above-mentioned charing is put into potassium hydroxide solution and soaked, is spontaneously dried after immersion, is finally putting into
Activated in Muffle furnace, discharge, as make polyacrylonitrile radical active carbon fiber by oneself；
（3）Weigh 0.6~0.8kg montmorillonites and be put into 6~8L sulfuric acid solutions and stir, continue to activate, obtain activating montmorillonite, use
Deionized water washing activation montmorillonite, takes out sediment after centrifugation, sediment is put into after being dried in baking oven, continues to grind, and
100 mesh sieves are crossed, obtain modified self-control montmorillonite powder；
（4）Count in parts by weight, weigh self-control polyacrylonitrile radical active carbon fiber, modified self-control montmorillonite powder, bamboo charcoal respectively
It is placed in the fermentation tank with sucrose, amber and Yoghourt, is sealed by fermentation with Ludox mixing, takes out tunning, use deionization
After water rinses tunning, then phenol and titanium dioxide are added, continue to stir, drying and grinding, discharged, you can permanent seal cooling first is made
Aldehyde adsorbent.
A kind of 2. preparation method of permanent seal cooling formaldehyde adsorbent according to claim 1, it is characterised in that：Step（1）Institute
The mass fraction for the liquor zinci chloridi stated is 25%, and soak time is 8~10min, and heat temperature raising temperature is 160~180 first
DEG C, it is 190~200 DEG C to reheat warming temperature, and it is 210~220 DEG C to continue heat temperature raising temperature, carbonization temperature is 800~
1000 DEG C, carbonization time is 1~2h.
A kind of 3. preparation method of permanent seal cooling formaldehyde adsorbent according to claim 1, it is characterised in that：Step（2）Institute
The mass ratio for the potassium hydroxide solution that the polyacrylonitrile fibre and mass fraction for the charing stated are 20% is 1：8, soak time 10
~12min, activation temperature are 600~800 DEG C, and soak time is 45~60min.
A kind of 4. preparation method of permanent seal cooling formaldehyde adsorbent according to claim 1, it is characterised in that：Step（3）Institute
The mass fraction for the sulfuric acid solution stated is 25%, and whipping temp is 80~100 DEG C, and mixing time is 10~12min, continues to activate
Temperature is 200~400 DEG C, and soak time is 1~3h, and regulation pH value is 4~5, and drying temperature is 90~110 DEG C, drying time
For 20~30min, continuation milling time is 12~16min.
A kind of 5. preparation method of permanent seal cooling formaldehyde adsorbent according to claim 1, it is characterised in that：Step（4）Institute
The meter in parts by weight stated, 30~40 parts of self-control polyacrylonitrile radical active carbon fibers is weighed respectively, 16~20 parts of modified self-controls are covered
The Ludox, 6~8 portions of sucrose, 3~5 parts of ambers and 5 that de- stone powder, 10~12 parts of bamboo charcoals and 3~5 parts of mass fractions are 15%
~7 portions of Yoghourts and 4~6 parts of phenol and 6~8 parts of titanium dioxide, fermentation temperature are 35~45 DEG C, and fermentation time is 7~9 days,
Whipping temp is 45~65 DEG C, and mixing time is 1~3h.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331777A (en) * | 2018-11-05 | 2019-02-15 | 浙江省地质矿产研究所 | Preparation method of recyclable regenerated carbon mesh combined powder non-metallic mineral porous water purification material |
| CN110841597A (en) * | 2019-12-09 | 2020-02-28 | 中国石油大学(华东) | Zinc acetate modified activated carbon fiber and titanium dioxide composite material and preparation method thereof |
| CN111905692A (en) * | 2020-06-22 | 2020-11-10 | 西安交通大学 | Organic fermentation coupled CO2Method for preparing semicoke-based carbon adsorption material through activation |
| CN112895028A (en) * | 2021-01-23 | 2021-06-04 | 浙江创通木业有限公司 | Formaldehyde-free artificial wood board and preparation method thereof |
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| CN110841597A (en) * | 2019-12-09 | 2020-02-28 | 中国石油大学(华东) | Zinc acetate modified activated carbon fiber and titanium dioxide composite material and preparation method thereof |
| CN111905692A (en) * | 2020-06-22 | 2020-11-10 | 西安交通大学 | Organic fermentation coupled CO2Method for preparing semicoke-based carbon adsorption material through activation |
| CN112895028A (en) * | 2021-01-23 | 2021-06-04 | 浙江创通木业有限公司 | Formaldehyde-free artificial wood board and preparation method thereof |
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