CN105056720B - Preparation method of composite catalytic material for eliminating indoor formaldehyde - Google Patents
Preparation method of composite catalytic material for eliminating indoor formaldehyde Download PDFInfo
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- CN105056720B CN105056720B CN201510460877.3A CN201510460877A CN105056720B CN 105056720 B CN105056720 B CN 105056720B CN 201510460877 A CN201510460877 A CN 201510460877A CN 105056720 B CN105056720 B CN 105056720B
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Abstract
The invention discloses a preparation method of a composite catalytic material for eliminating indoor formaldehyde, which comprises the following steps: s1, mixing activated carbon and a sodium hydroxide solution, activating, washing with water to be neutral, and drying to obtain a material a; s2, adding polyacrylamide, potassium bicarbonate, tris (hydroxymethyl) aminomethane and deionized water into the material a, uniformly mixing, granulating, drying to obtain a material b, roasting the material b, cooling to room temperature, activating with hydrochloric acid, washing with water to neutrality, drying, and cooling to room temperature to obtain a material c; and S3, placing the material c in a reactant solution, soaking, drying, and cooling to room temperature to obtain the composite catalytic material for eliminating indoor formaldehyde. The composite catalytic material for eliminating indoor formaldehyde has excellent formaldehyde absorbing capacity, high purifying efficiency, no pollution, complete formaldehyde elimination, fast indoor formaldehyde concentration reduction and obviously improved air quality.
Description
Technical field
The present invention relates to a kind of elimination particle more particularly to a kind of systems for eliminating the composite catalyzing material of indoor formaldehyde
Preparation Method.
Background technology
China's regulation Formaldehyde Concentration of Indoor Air must not exceed 0.08mg/m3, according at present in new decorated dwellings room
Air formaldehyde monitoring and surveying shows that indoor concentration is 6.65 times of outdoor concentration, and exceeded 5.15 times, this will be to the body of occupant
Health causes to seriously endanger.Therefore, the problem of indoor formaldehyde concentration is urgent need to resolve after fitting up is reduced.
Invent it is a kind of solving the formaldehyde that left behind of finishing for eliminating the composite catalyzing material of indoor formaldehyde, be current
The problem of technology urgent need to resolve.
Invention content
To solve technical problem present in background technology, the present invention proposes a kind of to urge for eliminating the compound of indoor formaldehyde
The absorption efficiency of the preparation method for changing material, the composite catalyzing material for eliminating indoor formaldehyde being prepared is high, and formaldehyde disappears
Except efficient, it is thorough to eliminate formaldehyde, and the concentration of indoor formaldehyde is made to reduce rapidly, air quality be improved significantly.
A kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention, including walk as follows
Suddenly：
S1, activated carbon and sodium hydroxide solution are mixed, after activating 8-10h, is rinsed with water to neutrality, then in 80-120
DEG C dry 5-9h, obtains material a；
S2, polyacrylamide, saleratus, trishydroxymethylaminomethane and deionized water mixing are added into material a
It is even, it is granulated, 100-120 DEG C of dry 1-5h obtains material b, material b is then roasted to 1-3h at 260-280 DEG C, is cooled to room temperature
It with hydrochloric acid activation, is then rinsed with water to neutrality, is dried at 80-120 DEG C, be cooled to room temperature to obtain material c；
S3, material c is placed in reactant solution and impregnates 1-3h, 80-100 DEG C of drying is cooled to room temperature to obtain for disappearing
Except the composite catalyzing material of indoor formaldehyde.
Preferably, in S1, the substance withdrawl syndrome of sodium hydroxide solution is 0.5-1.5mol/L.
Preferably, in S1, the mass ratio of activated carbon and sodium hydroxide solution is 8-12:1-2.
Preferably, in S2, in polyacrylamide, saleratus, trishydroxymethylaminomethane, deionized water, hydrochloric acid and S1
Activated carbon mass ratio be 1-3:3-6:2-4:8-12：3-9：8-12.
Preferably, in S2, the substance withdrawl syndrome of hydrochloric acid is 0.8-1.2mol/L.
Preferably, in S2, material b is the chondritic of diameter 2-4mm.
Preferably, in S3, the weight ratio of reactant solution and the activated carbon in S1 is 1-3：8-12.
Preferably, in S3, reactant solution is mixed to get by ammonium chloride solution and metabisulfite solution.
Preferably, the substance withdrawl syndrome of ammonium chloride solution is 0.8-1.2mol/L, and the amount of the substance of metabisulfite solution is dense
Degree is 1.5-2.5mol/L.
Preferably, the mass ratio of ammonium chloride solution and metabisulfite solution is 1-2：1.5-3.0.
In the present invention, sorbing material is used as by activated carbon, activated carbon has higher chemical stability, larger ratio
The advantages that surface area and easily regeneration, and activated carbon is mostly powdered or fine granularity, and as absorption carrier, the present invention is by powder
It is mixed with polyacrylamide, saleratus, trishydroxymethylaminomethane, deionized water after shaped activated carbon activation, has been made big
It is granular, it then roasts, activate, rinsing, drying, cooling to obtain sorbing material material c, sorbing material material c not only active
Performance of the charcoal as sorbing material, while rubbing into polyacrylamide, saleratus and trishydroxymethylaminomethane so that adsorption material
Material material c also has the function of elimination formaldehyde, and alkalinity, formaldehyde solubility in the solution of alkalinity are hydrolyzed to after saleratus water suction
Higher, therefore effectively increase the absorption efficiency of formaldehyde；Reactant solution in the present invention reacts production with formaldehyde using ammonium chloride
Raw alkali, sodium sulphate reacts generation acid with formaldehyde, therefore by ammonium chloride and sodium sulphate mixing as reactant, during the product of the two is lucky
With the progress for generating water, and the two being promoted to be reacted with formaldehyde；The composite catalyzing for eliminating indoor formaldehyde that the present invention obtains
Material has excellent formaldehyde absorption ability, and purification efficiency is high, pollution-free.It is thorough to eliminate formaldehyde, makes the concentration of indoor formaldehyde
Reduce rapidly, air quality be improved significantly.
Description of the drawings
Fig. 1 is that a kind of flow for eliminating the preparation method of the composite catalyzing material of indoor formaldehyde proposed by the present invention is shown
It is intended to.
Specific implementation mode
The present invention is described in detail with reference to specific embodiment, it should be appreciated that embodiment is served only for illustrating this hair
It is bright, rather than for limiting the invention, any modification made on the basis of the present invention, equivalent replacement etc. are in this hair
In bright protection domain.
As shown in FIG. 1, FIG. 1 is a kind of preparation sides for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention
The flow diagram of method.
Referring to Fig.1, a kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention, including
Following steps：
S1, activated carbon and sodium hydroxide solution are mixed, after activating 8-10h, is rinsed with water to neutrality, then in 80-120
DEG C dry 5-9h, obtains material a；
S2, polyacrylamide, saleratus, trishydroxymethylaminomethane and deionized water mixing are added into material a
It is even, it is granulated, 100-120 DEG C of dry 1-5h obtains material b, material b is then roasted to 1-3h at 260-280 DEG C, is cooled to room temperature
It with hydrochloric acid activation, is then rinsed with water to neutrality, is dried at 80-120 DEG C, be cooled to room temperature to obtain material c；
S3, material c is placed in reactant solution and impregnates 1-3h, 80-100 DEG C of drying is cooled to room temperature to obtain for disappearing
Except the composite catalyzing material of indoor formaldehyde.
Embodiment 1
A kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention, including walk as follows
Suddenly：
S1,10 parts of activated carbons and sodium hydroxide solution that 1.5 parts of substance withdrawl syndromes are 1.0mol/L are mixed by weight
It closes, after activating 9h, is rinsed with water to neutrality, then in 100 DEG C of dry 7h, obtains material a；
S2,2 parts of polyacrylamides of addition, 4.5 parts of saleratus, 3 parts of trishydroxymethylaminomethanes and 10 parts into material a
Deionized water is uniformly mixed, and is granulated, and 110 DEG C of dry 3h obtain the material b of a diameter of 3mm chondritics, then material b exists
270 DEG C of roasting 2h, are cooled to room temperature the hydrochloric acid activation for being 1.0mol/L with 6 parts of substance withdrawl syndromes, are then rinsed with water into
Property, it is dried at 100 DEG C, is cooled to room temperature to obtain material c；
S3, material c is placed in 2 parts of reactant solutions and impregnates 2h, 90 DEG C of drying are cooled to room temperature to obtain for decontamination chamber
The composite catalyzing material of interior formaldehyde.
Wherein, the ammonium chloride solution and substance withdrawl syndrome that reactant solution is 1.0mol/L by substance withdrawl syndrome be
The metabisulfite solution of 2.0mol/L is 1.5 in mass ratio：1.75 being mixed to get.
The composite catalyzing material for eliminating indoor formaldehyde in the present embodiment is applied to the environment of physical presence formaldehyde
The middle elimination for carrying out formaldehyde finds, the removal efficiency of formaldehyde is 99.45% in unit area, and formaldehyde is converted into dioxy by detecting
The removal efficiency for changing carbon is 86.65%.
Embodiment 2
A kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention, including walk as follows
Suddenly：
S1, the sodium hydroxide solution mixing for being by weight 0.5mol/L by 8 parts of activated carbons and 2 parts of substance withdrawl syndromes,
After activating 10h, it is rinsed with water to neutrality, then in 80 DEG C of dry 9h, obtains material a；
S2, into material a, 3 parts of polyacrylamides of addition, 3 parts of saleratus, 4 parts of trishydroxymethylaminomethanes and 8 parts are gone
Ionized water is uniformly mixed, and is granulated, and 120 DEG C of dry 1h obtain the material b of a diameter of 4mm chondritics, then by material b 260
DEG C roasting 3h, be cooled to room temperature the hydrochloric acid activation for being 1.2mol/L with 3 parts of substance withdrawl syndromes, be then rinsed with water to neutrality,
It is dried at 80 DEG C, is cooled to room temperature to obtain material c；
S3, material c is placed in 1 part of reactant solution and impregnates 3h, 80 DEG C of drying are cooled to room temperature to obtain for decontamination chamber
The composite catalyzing material of interior formaldehyde.
Wherein, the ammonium chloride solution and substance withdrawl syndrome that reactant solution is 1.2mol/L by substance withdrawl syndrome be
The metabisulfite solution of 1.5mol/L is 2 in mass ratio：1.5 being mixed to get.
The composite catalyzing material for eliminating indoor formaldehyde in the present embodiment is applied to the environment of physical presence formaldehyde
The middle elimination for carrying out formaldehyde finds, the removal efficiency of formaldehyde is 98.45% in unit area, and formaldehyde is converted into dioxy by detecting
The removal efficiency for changing carbon is 85.65%.
Embodiment 3
A kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention, including walk as follows
Suddenly：
S1, the sodium hydroxide solution mixing for being by weight 1.5mol/L by 12 parts of activated carbons and 1 part of substance withdrawl syndrome,
After activating 8h, it is rinsed with water to neutrality, then in 120 DEG C of dry 5h, obtains material a；
S2, into material a, 1 part of polyacrylamide of addition, 6 parts of saleratus, 2 parts of trishydroxymethylaminomethanes and 12 parts are gone
Ionized water is uniformly mixed, and is granulated, and 100 DEG C of dry 5h obtain the material b of a diameter of 2mm chondritics, then by material b 280
DEG C roasting 1h, be cooled to room temperature the hydrochloric acid activation for being 0.8mol/L with 9 parts of substance withdrawl syndromes, be then rinsed with water to neutrality,
It is dried at 120 DEG C, is cooled to room temperature to obtain material c；
S3, material c is placed in 3 parts of reactant solutions and impregnates 1h, 100 DEG C of drying are cooled to room temperature to obtain for eliminating
The composite catalyzing material of indoor formaldehyde.
Wherein, the ammonium chloride solution and substance withdrawl syndrome that reactant solution is 0.8mol/L by substance withdrawl syndrome be
The metabisulfite solution of 2.5mol/L is 1 in mass ratio：3.0 being mixed to get.
The composite catalyzing material for eliminating indoor formaldehyde in the present embodiment is applied to the environment of physical presence formaldehyde
The middle elimination for carrying out formaldehyde finds, the removal efficiency of formaldehyde is 98.23% in unit area, and formaldehyde is converted into dioxy by detecting
The removal efficiency for changing carbon is 85.36%.
Embodiment 4
A kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention, including walk as follows
Suddenly：
S1,9 parts of activated carbons and sodium hydroxide solution that 1.8 parts of substance withdrawl syndromes are 0.8mol/L are mixed by weight
It closes, after activating 9.5h, is rinsed with water to neutrality, then in 85 DEG C of dry 8h, obtains material a；
S2,2.5 parts of polyacrylamides, 4 parts of saleratus, 3.5 parts of trishydroxymethylaminomethanes and 9 are added into material a
Part deionized water is uniformly mixed, and is granulated, and 115 DEG C of dry 2h obtain the material b of a diameter of 3.5mm chondritics, then by material
B roasts 2.5h at 265 DEG C, is cooled to room temperature the hydrochloric acid activation for being 1.1mol/L with 4 parts of substance withdrawl syndromes, is then rinsed with water
To neutrality, is dried at 85 DEG C, be cooled to room temperature to obtain material c；
S3, material c is placed in 1.5 parts of reactant solutions and impregnates 2.5h, 85 DEG C of drying are cooled to room temperature to obtain for disappearing
Except the composite catalyzing material of indoor formaldehyde.
Wherein, the ammonium chloride solution and substance withdrawl syndrome that reactant solution is 1.1mol/L by substance withdrawl syndrome be
The metabisulfite solution of 1.6mol/L is 1.8 in mass ratio：1.8 being mixed to get.
The composite catalyzing material for eliminating indoor formaldehyde in the present embodiment is applied to the environment of physical presence formaldehyde
The middle elimination for carrying out formaldehyde finds, the removal efficiency of formaldehyde is 99.12% in unit area, and formaldehyde is converted into dioxy by detecting
The removal efficiency for changing carbon is 86.13%.
Embodiment 5
A kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde proposed by the present invention, including walk as follows
Suddenly：
S1,11 parts of activated carbons and sodium hydroxide solution that 1.2 parts of substance withdrawl syndromes are 1.3mol/L are mixed by weight
It closes, after activating 8.5h, is rinsed with water to neutrality, then in 115 DEG C of dry 6h, obtains material a；
S2,1.5 parts of polyacrylamides, 5 parts of saleratus, 2.5 parts of trishydroxymethylaminomethanes and 11 are added into material a
Part deionized water is uniformly mixed, and is granulated, and 105 DEG C of dry 4h obtain the material b of a diameter of 2.5mm chondritics, then by material
B roasts 1.5h at 275 DEG C, is cooled to room temperature the hydrochloric acid activation for being 0.9mol/L with 8 parts of substance withdrawl syndromes, is then rinsed with water
To neutrality, is dried at 115 DEG C, be cooled to room temperature to obtain material c；
S3, material c is placed in 2.5 parts of reactant solutions and impregnates 1.5h, 95 DEG C of drying are cooled to room temperature to obtain for disappearing
Except the composite catalyzing material of indoor formaldehyde.
Wherein, the ammonium chloride solution and substance withdrawl syndrome that reactant solution is 0.9mol/L by substance withdrawl syndrome be
The metabisulfite solution of 2.4mol/L is 1.2 in mass ratio：2.7 being mixed to get.
The composite catalyzing material for eliminating indoor formaldehyde in the present embodiment is applied to the environment of physical presence formaldehyde
The middle elimination for carrying out formaldehyde finds, the removal efficiency of formaldehyde is 98.96% in unit area, and formaldehyde is converted into dioxy by detecting
The removal efficiency for changing carbon is 85.97%.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of preparation method for eliminating the composite catalyzing material of indoor formaldehyde, which is characterized in that include the following steps：
S1, activated carbon and sodium hydroxide solution are mixed, after activating 8-10h, is rinsed with water to neutrality, then done at 80-120 DEG C
Dry 5-9h obtains material a；
S2, into material a, addition polyacrylamide, saleratus, trishydroxymethylaminomethane and deionized water are uniformly mixed, and are made
Grain, 100-120 DEG C of dry 1-5h obtain material b, material b are then roasted to 1-3h at 260-280 DEG C, is cooled to room temperature and uses salt
Then acid activation is rinsed with water to neutrality, dried at 80-120 DEG C, be cooled to room temperature to obtain material c；
S3, material c is placed in reactant solution and impregnates 1-3h, 80-100 DEG C of drying is cooled to room temperature to obtain for decontamination chamber
The composite catalyzing material of interior formaldehyde；
In S2, the matter of the activated carbon in polyacrylamide, saleratus, trishydroxymethylaminomethane, deionized water, hydrochloric acid and S1
Amount is than being 1-3:3-6:2-4:8-12：3-9：8-12；
In S3, reactant solution is mixed to get by ammonium chloride solution and metabisulfite solution, ammonium chloride solution and metabisulfite solution
Mass ratio is 1-2：1.5-3.0.
2. the preparation method according to claim 1 for eliminating the composite catalyzing material of indoor formaldehyde, which is characterized in that
In S1, the substance withdrawl syndrome of sodium hydroxide solution is 0.5-1.5mol/L.
3. the preparation method according to claim 1 or 2 for eliminating the composite catalyzing material of indoor formaldehyde, feature exists
In in S1, the mass ratio of activated carbon and sodium hydroxide solution is 8-12:1-2.
4. the preparation method according to claim 1 or 2 for eliminating the composite catalyzing material of indoor formaldehyde, feature exists
In in S2, the substance withdrawl syndrome of hydrochloric acid is 0.8-1.2mol/L.
5. the preparation method according to claim 1 or 2 for eliminating the composite catalyzing material of indoor formaldehyde, feature exists
In in S2, material b is the chondritic of diameter 2-4mm.
6. the preparation method according to claim 1 or 2 for eliminating the composite catalyzing material of indoor formaldehyde, feature exists
In in S3, the weight ratio of reactant solution and the activated carbon in S1 is 1-3：8-12.
7. the preparation method according to claim 1 for eliminating the composite catalyzing material of indoor formaldehyde, which is characterized in that
The substance withdrawl syndrome of ammonium chloride solution is 0.8-1.2mol/L, and the substance withdrawl syndrome of metabisulfite solution is 1.5-2.5mol/
L。
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| CN106268252A (en) * | 2016-08-08 | 2017-01-04 | 安徽科浦环保科技有限公司 | A kind of high-efficiency formaldehyde scavenging agent |
| CN107626150A (en) * | 2017-11-01 | 2018-01-26 | 无锡风正科技有限公司 | It is a kind of compound except aldehyde filtrate and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513579A (en) * | 2003-08-13 | 2004-07-21 | 河北科技大学 | Adsorption absorption reaction type formaldehyde eliminating agent |
| CN104324692A (en) * | 2014-11-28 | 2015-02-04 | 安徽理工大学 | Preparation method of active carbon capable of removing formaldehyde |
| CN104607151A (en) * | 2015-02-13 | 2015-05-13 | 福建省鑫森炭业股份有限公司 | Formaldehyde removal active carbon and preparation method thereof |
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| JP2002541288A (en) * | 1999-04-07 | 2002-12-03 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Polyacetal resin with reduced formaldehyde odor |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513579A (en) * | 2003-08-13 | 2004-07-21 | 河北科技大学 | Adsorption absorption reaction type formaldehyde eliminating agent |
| CN104324692A (en) * | 2014-11-28 | 2015-02-04 | 安徽理工大学 | Preparation method of active carbon capable of removing formaldehyde |
| CN104607151A (en) * | 2015-02-13 | 2015-05-13 | 福建省鑫森炭业股份有限公司 | Formaldehyde removal active carbon and preparation method thereof |
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