CN105056720A - 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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- CN105056720A CN105056720A CN201510460877.3A CN201510460877A CN105056720A CN 105056720 A CN105056720 A CN 105056720A CN 201510460877 A CN201510460877 A CN 201510460877A CN 105056720 A CN105056720 A CN 105056720A
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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, particularly relating to a kind of preparation method of the compound catalyze material for eliminating indoor formaldehyde.
Background technology
China's regulation Formaldehyde Concentration of Indoor Air must not more than 0.08mg/m
3, according to showing new decorated dwellings Indoor Air Formaldehyde monitoring and surveying at present, indoor concentration is 6.65 times of outdoor concentration, and exceed standard 5.15 times, this causes serious harm by the healthy of occupant.Therefore, reducing the rear indoor formaldehyde concentration of finishing is the problem needing solution badly.
Invent a kind of compound catalyze material for eliminating indoor formaldehyde to solve and fit up the formaldehyde that left behind, be at present now technology need the problem of solution badly.
Summary of the invention
For solving the technical problem existed in background technology, the present invention proposes a kind of preparation method of the compound catalyze material for eliminating indoor formaldehyde, the absorption efficiency for the compound catalyze material eliminating indoor formaldehyde prepared is high, it is high that formaldehyde eliminates efficiency, elimination formaldehyde is thorough, the concentration of indoor formaldehyde is reduced rapidly, air quality be improved significantly.
The preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes, comprises the steps:
S1, by active carbon and sodium hydroxide solution mixing, after activation 8-10h, rinse to neutral with water, then at 80-120 DEG C of dry 5-9h, obtain material a;
S2, in material a, add polyacrylamide, saleratus, trishydroxymethylaminomethane and deionized water mix, granulation, 100-120 DEG C of dry 1-5h, obtain material b, then by material b at 260-280 DEG C of roasting 1-3h, be cooled to room temperature hydrochloric acid activation, then rinse to neutral with water, 80-120 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in reactant solution soaks 1-3h, 80-100 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating 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 active carbon and sodium hydroxide solution is 8-12:1-2.
Preferably, in S2, the mass ratio of the active carbon in polyacrylamide, saleratus, trishydroxymethylaminomethane, deionized water, hydrochloric acid and S1 is 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 the active carbon in reactant solution and 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 substance withdrawl syndrome of metabisulfite solution 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, by activated carbon as sorbing material, active carbon has higher chemical stability, the advantages such as larger specific area and easily regeneration, and active carbon is mostly Powdered or fine granularity, as absorption carrier, the present invention is by rear for powdered active carbon activation and polyacrylamide, saleratus, trishydroxymethylaminomethane, deionized water mixes, make large grained, then roasting, activation, rinse, dry, cooling obtains sorbing material material c, sorbing material material c not only has the performance of active carbon as sorbing material, rub into polyacrylamide simultaneously, saleratus and trishydroxymethylaminomethane, sorbing material material c is made also to have the function eliminating formaldehyde, alkalescence is hydrolyzed to after saleratus water suction, formaldehyde solubility in the solution of alkalescence is higher, therefore effectively improve the absorption efficiency of formaldehyde, reactant solution in the present invention adopts ammonium chloride and formolite reaction to produce alkali, and sodium sulphate and formolite reaction produce acid, therefore mixes ammonium chloride and sodium sulphate as reactant, and the product of the two neutralizes generation water just, and both can impelling and the carrying out of formolite reaction, what the present invention obtained has excellent formaldehyde absorption ability for the compound catalyze material eliminating indoor formaldehyde, and purification efficiency is high, pollution-free.Elimination formaldehyde is thorough, and the concentration of indoor formaldehyde is reduced rapidly, air quality be improved significantly.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail; should understand; embodiment is only for illustration of the present invention, instead of for limiting the present invention, any amendment, equivalent replacement etc. made on basis of the present invention is all in protection scope of the present invention.
As shown in Figure 1, Fig. 1 is the schematic flow sheet of the preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes.
With reference to Fig. 1, the preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes, comprises the steps:
S1, by active carbon and sodium hydroxide solution mixing, after activation 8-10h, rinse to neutral with water, then at 80-120 DEG C of dry 5-9h, obtain material a;
S2, in material a, add polyacrylamide, saleratus, trishydroxymethylaminomethane and deionized water mix, granulation, 100-120 DEG C of dry 1-5h, obtain material b, then by material b at 260-280 DEG C of roasting 1-3h, be cooled to room temperature hydrochloric acid activation, then rinse to neutral with water, 80-120 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in reactant solution soaks 1-3h, 80-100 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating indoor formaldehyde.
Embodiment 1
The preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes, comprises the steps:
S1, be the sodium hydroxide solution mixing of 1.0mol/L by 10 parts of active carbons and 1.5 parts of substance withdrawl syndrome by weight, after activation 9h, rinse to neutral with water, then at 100 DEG C of dry 7h, obtain material a;
S2, in material a, add 2 parts of polyacrylamides, 4.5 parts of saleratus, 3 parts of trishydroxymethylaminomethanes and 10 parts of deionized waters mix, granulation, 110 DEG C of dry 3h, obtain the material b that diameter is 3mm chondritic, then by material b at 270 DEG C of roasting 2h, being cooled to room temperature with 6 parts of substance withdrawl syndrome is the hydrochloric acid activation of 1.0mol/L, then rinses to neutral with water, 100 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in 2 parts of reactant solutions soaks 2h, 90 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating indoor formaldehyde.
Wherein, reactant solution is the ammonium chloride solution of 1.0mol/L and substance withdrawl syndrome by substance withdrawl syndrome is that the metabisulfite solution of 2.0mol/L is in mass ratio for 1.5:1.75 is mixed to get.
The compound catalyze material being eliminated indoor formaldehyde being used in the present embodiment is applied to the elimination carrying out formaldehyde in the environment of physical presence formaldehyde, find by detecting, in unit are, the removal efficiency of formaldehyde is 99.45%, and formaldehyde conversion is the removal efficiency of carbon dioxide is 86.65%.
Embodiment 2
The preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes, comprises the steps:
S1, be the sodium hydroxide solution mixing of 0.5mol/L by 8 parts of active carbons and 2 parts of substance withdrawl syndrome by weight, after activation 10h, rinse to neutral with water, then at 80 DEG C of dry 9h, obtain material a;
S2, in material a, add 3 parts of polyacrylamides, 3 parts of saleratus, 4 parts of trishydroxymethylaminomethanes and 8 parts of deionized waters mix, granulation, 120 DEG C of dry 1h, obtain the material b that diameter is 4mm chondritic, then by material b at 260 DEG C of roasting 3h, being cooled to room temperature with 3 parts of substance withdrawl syndrome is the hydrochloric acid activation of 1.2mol/L, then rinses to neutral with water, 80 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in 1 part of reactant solution soaks 3h, 80 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating indoor formaldehyde.
Wherein, reactant solution is the ammonium chloride solution of 1.2mol/L and substance withdrawl syndrome by substance withdrawl syndrome is that the metabisulfite solution of 1.5mol/L is in mass ratio for 2:1.5 is mixed to get.
The compound catalyze material being eliminated indoor formaldehyde being used in the present embodiment is applied to the elimination carrying out formaldehyde in the environment of physical presence formaldehyde, find by detecting, in unit are, the removal efficiency of formaldehyde is 98.45%, and formaldehyde conversion is the removal efficiency of carbon dioxide is 85.65%.
Embodiment 3
The preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes, comprises the steps:
S1, be the sodium hydroxide solution mixing of 1.5mol/L by 12 parts of active carbons and 1 part of substance withdrawl syndrome by weight, after activation 8h, rinse to neutral with water, then at 120 DEG C of dry 5h, obtain material a;
S2, in material a, add 1 part of polyacrylamide, 6 parts of saleratus, 2 parts of trishydroxymethylaminomethanes and 12 parts of deionized waters mix, granulation, 100 DEG C of dry 5h, obtain the material b that diameter is 2mm chondritic, then by material b at 280 DEG C of roasting 1h, being cooled to room temperature with 9 parts of substance withdrawl syndrome is the hydrochloric acid activation of 0.8mol/L, then rinses to neutral with water, 120 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in 3 parts of reactant solutions soaks 1h, 100 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating indoor formaldehyde.
Wherein, reactant solution is the ammonium chloride solution of 0.8mol/L and substance withdrawl syndrome by substance withdrawl syndrome is that the metabisulfite solution of 2.5mol/L is in mass ratio for 1:3.0 is mixed to get.
The compound catalyze material being eliminated indoor formaldehyde being used in the present embodiment is applied to the elimination carrying out formaldehyde in the environment of physical presence formaldehyde, find by detecting, in unit are, the removal efficiency of formaldehyde is 98.23%, and formaldehyde conversion is the removal efficiency of carbon dioxide is 85.36%.
Embodiment 4
The preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes, comprises the steps:
S1, be the sodium hydroxide solution mixing of 0.8mol/L by 9 parts of active carbons and 1.8 parts of substance withdrawl syndrome by weight, after activation 9.5h, rinse to neutral with water, then at 85 DEG C of dry 8h, obtain material a;
S2, in material a, add 2.5 parts of polyacrylamides, 4 parts of saleratus, 3.5 parts of trishydroxymethylaminomethanes and 9 parts of deionized waters mix, granulation, 115 DEG C of dry 2h, obtain the material b that diameter is 3.5mm chondritic, then by material b at 265 DEG C of roasting 2.5h, being cooled to room temperature with 4 parts of substance withdrawl syndrome is the hydrochloric acid activation of 1.1mol/L, then rinses to neutral with water, 85 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in 1.5 parts of reactant solutions soaks 2.5h, 85 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating indoor formaldehyde.
Wherein, reactant solution is the ammonium chloride solution of 1.1mol/L and substance withdrawl syndrome by substance withdrawl syndrome is that the metabisulfite solution of 1.6mol/L is in mass ratio for 1.8:1.8 is mixed to get.
The compound catalyze material being eliminated indoor formaldehyde being used in the present embodiment is applied to the elimination carrying out formaldehyde in the environment of physical presence formaldehyde, find by detecting, in unit are, the removal efficiency of formaldehyde is 99.12%, and formaldehyde conversion is the removal efficiency of carbon dioxide is 86.13%.
Embodiment 5
The preparation method of a kind of compound catalyze material for eliminating indoor formaldehyde that the present invention proposes, comprises the steps:
S1, be the sodium hydroxide solution mixing of 1.3mol/L by 11 parts of active carbons and 1.2 parts of substance withdrawl syndrome by weight, after activation 8.5h, rinse to neutral with water, then at 115 DEG C of dry 6h, obtain material a;
S2, in material a, add 1.5 parts of polyacrylamides, 5 parts of saleratus, 2.5 parts of trishydroxymethylaminomethanes and 11 parts of deionized waters mix, granulation, 105 DEG C of dry 4h, obtain the material b that diameter is 2.5mm chondritic, then by material b at 275 DEG C of roasting 1.5h, being cooled to room temperature with 8 parts of substance withdrawl syndrome is the hydrochloric acid activation of 0.9mol/L, then rinses to neutral with water, 115 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in 2.5 parts of reactant solutions soaks 1.5h, 95 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating indoor formaldehyde.
Wherein, reactant solution is the ammonium chloride solution of 0.9mol/L and substance withdrawl syndrome by substance withdrawl syndrome is that the metabisulfite solution of 2.4mol/L is in mass ratio for 1.2:2.7 is mixed to get.
The compound catalyze material being eliminated indoor formaldehyde being used in the present embodiment is applied to the elimination carrying out formaldehyde in the environment of physical presence formaldehyde, find by detecting, in unit are, the removal efficiency of formaldehyde is 98.96%, and formaldehyde conversion is the removal efficiency of carbon dioxide is 85.97%.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. for eliminating a preparation method for the compound catalyze material of indoor formaldehyde, it is characterized in that, comprising the steps:
S1, by active carbon and sodium hydroxide solution mixing, after activation 8-10h, rinse to neutral with water, then at 80-120 DEG C of dry 5-9h, obtain material a;
S2, in material a, add polyacrylamide, saleratus, trishydroxymethylaminomethane and deionized water mix, granulation, 100-120 DEG C of dry 1-5h, obtain material b, then by material b at 260-280 DEG C of roasting 1-3h, be cooled to room temperature hydrochloric acid activation, then rinse to neutral with water, 80-120 DEG C of oven dry, be cooled to room temperature and obtain material c;
S3, material c is placed in reactant solution soaks 1-3h, 80-100 DEG C of oven dry, being cooled to the compound catalyze material that room temperature obtains for eliminating indoor formaldehyde.
2. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to claim 1, is characterized in that, in S1, the substance withdrawl syndrome of sodium hydroxide solution is 0.5-1.5mol/L.
3. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to any one of claim 1 or 2, is characterized in that, in S1, the mass ratio of active carbon and sodium hydroxide solution is 8-12:1-2.
4. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to any one of claim 1-3, it is characterized in that, in S2, the mass ratio of the active carbon in polyacrylamide, saleratus, trishydroxymethylaminomethane, deionized water, hydrochloric acid and S1 is 1-3:3-6:2-4:8-12:3-9:8-12.
5. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to any one of claim 1-4, is characterized in that, in S2, the substance withdrawl syndrome of hydrochloric acid is 0.8-1.2mol/L.
6. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to any one of claim 1-5, is characterized in that, in S2, material b is the chondritic of diameter 2-4mm.
7. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to any one of claim 1-6, is characterized in that, in S3, the weight ratio of the active carbon in reactant solution and S1 is 1-3:8-12.
8. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to any one of claim 1-7, is characterized in that, in S3, reactant solution is mixed to get by ammonium chloride solution and metabisulfite solution.
9. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to claim 8, 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.
10. the preparation method of the compound catalyze material for eliminating indoor formaldehyde according to claim 8 or claim 9, it is characterized in that, the mass ratio of ammonium chloride solution and metabisulfite solution is 1-2:1.5-3.0.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| US20020019469A1 (en) * | 1999-04-07 | 2002-02-14 | Hiroshi Mori | Polyacetal resins with reduced formaldehyde odor |
| 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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2015
- 2015-07-31 CN CN201510460877.3A patent/CN105056720B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020019469A1 (en) * | 1999-04-07 | 2002-02-14 | Hiroshi Mori | Polyacetal resins with reduced formaldehyde odor |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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