CN1128662C - Process for preparing dealdehydizing material - Google Patents
Process for preparing dealdehydizing material Download PDFInfo
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- CN1128662C CN1128662C CN 02116544 CN02116544A CN1128662C CN 1128662 C CN1128662 C CN 1128662C CN 02116544 CN02116544 CN 02116544 CN 02116544 A CN02116544 A CN 02116544A CN 1128662 C CN1128662 C CN 1128662C
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Abstract
The present invention relates to a preparation method of materials for removing aldehyde. The preparation method comprises the following steps of drying activated carbon fibers at the temperature of 100 to 150 DEG C, soaking the activated carbon fibers for 0.5 to 24 hours under the conditions of normal pressure or the pressure of 0.2 to 10MPa in the mixed solution of hydrophilic organic compounds having concentration of 0.01 to 10 mol/l and containing amidogen and transitional metal salts with concentration of 0.01 to 10 mol/l, taking out, extruding and drying the activated carbon fibers by air, and drying the activated carbon fibers at the temperature of 100 to 150 DEG C to obtain activated carbon fiber materials for removing aldehyde substances. The method has the advantages of simple preparation, no pollution in the process of eliminating aldehyde, high elimination speed, large capacity and good aldehyde eliminating effect which far exceeds that of conventional activated carbon fibers.
Description
Technical field:
The invention belongs to a kind of VOC (VOC) preparation methods that removes, relate in particular to a kind of preparation method who removes the aldehyde-containing gas activated carbon fiber material.
Background technology:
In recent years, the seriousness paid more and more attention of room air pollution.Aldehyde materials such as formaldehyde are a kind of common indoor air pollutants, and formaldehyde pollutes a key factor that becomes indoor pollution.Formaldehyde is a kind of primary toxin, and formaldehyde can produce tangible spread effect to eye, nose, larynx, skin etc. in the air.Formaldehyde also is a kind of VOC (VOCs-Volatile OrganicCompounds).Therefore, administer formaldehyde pollution and become a major part of administering the indoor VOCs pollution.In order fundamentally to solve the pollution that VOC caused such as formaldehyde, the method for absorption commonly used.Active carbon and NACF are the adsorbents of using always.NACF is owing to have particular structure and performance characteristic, have a wide range of applications in fields such as chemical industry, environmental protection, defence and military, electronics and the energy, since 1960's comes out, caused people's attention always, developed rapidly about the seventies.Conventional NACF is a kind ofly to be rich in micropore, nonpolar carbon absorbent, but weak point is the adsorbing and removing poor-performing of NACF PARA FORMALDEHYDE PRILLS(91,95) isopolarity organic compound, and adsorption capacity is lower.
Summary of the invention:
The objective of the invention is to develop a kind of preparation method of pollution-free, the rate of adsorption is high and adsorption capacity the is big NACF that removes aldehyde-containing gas.
The object of the present invention is achieved like this: the solution impregnation processing NACF that adds slaine with the hydrophilic organic compound of certain density amino-contained, take out behind the certain hour, air-dry in air, dry under 100-150 ℃ of temperature then, the NACF that makes since load on the organic compound of amino-contained, under the catalytic action of slaine, the performance of its full gear has improved.
Preparation method of the present invention comprises the steps:
NACF is dry down at 100-150 ℃, working concentration is that the mixed solution of the transition metal salt of the hydrophilic organic compound of amino-contained of 0.01-10mol/l and 0.01-10mol/l is under the 0.2-10MPa condition impregnation process 0.5-24 hour at normal pressure or pressure then, take out extruding, air-dry, in 100-150 ℃ of oven dry, make the activated carbon fiber material that removes aldehyde material.
Aforesaid NACF is polyacrylonitrile active carbon fiber, viscose-based active carbon fiber, asphalt based active carbon fiber.
The hydrophily organic compound of aforesaid amino-contained is para amidocyanogen benzoic Acid, para-anilinesulfonic acid.
Aforesaid transition metal salt is sulfate, the nitrate of copper, iron, nickel, cobalt, manganese, acetate, halide.
The material for removing aldehyde that the present invention makes can be processed into variforms such as fiber, cloth, paper, felt.
The present invention has the following advantages:
(1) preparation is simple, easy to operate.
(2) product that makes is pollution-free.
(3) full gear speed height, capacity are big, effective.
The specific embodiment:
Embodiment 1
Polyacrylonitrile active carbon fiber is dry under 100 ℃, adds the CuCl of 0.01mol/l under normal pressure at the para-anilinesulfonic acid of 0.01mol/l
2Dipping is 24 hours in the solution, takes out extruding, and is air-dry, dry under 100 ℃ in air atmosphere then, makes material for removing aldehyde.Performance test: at room temperature handle aldehyde-containing gas with this material of 2g, formaldehyde entrance concentration 5ppm, the gas of steam entry concentration 10ppm (nitrogen+air+formaldehyde+water vapour).Flow is 10ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 12min, formaldehyde 6 hours.
Embodiment 2
Viscose-based active carbon fiber 105 ℃ down dry, but then in a stainless steel pressue device under 0.2Mpa pressure, add the Fe of 0.1mol/l in the para amidocyanogen benzoic Acid of 0.1mol/l
2(SO4)
3Solution in dipping 20 hours, take out extruding, air-dry, then in air atmosphere 105 ℃ dry down, make material for removing aldehyde.Performance test: at room temperature handle aldehyde-containing gas with this material of 3g, formaldehyde entrance concentration 10ppm, the gas of steam entry concentration 100ppm (nitrogen+air+formaldehyde+water vapour).Flow is 12ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 18min, formaldehyde 12 hours.
Embodiment 3
The asphalt based active carbon fiber is dry under 110 ℃, adds the CoCl of 0.5mol/l under normal pressure at the para-anilinesulfonic acid of 0.2mol/l
2Dipping is 12 hours in the solution, takes out extruding, and is air-dry, dry under 110 ℃ in air atmosphere then, makes material for removing aldehyde.Performance test: at room temperature handle aldehyde-containing gas with this material of 5g, formaldehyde entrance concentration 15ppm, the gas of steam entry concentration 150ppm (nitrogen+air+formaldehyde+water vapour).Flow is 15ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 15min, formaldehyde 9 hours.
Embodiment 4
Polyacrylonitrile active carbon fiber 120 ℃ down dry, but then in a stainless steel pressue device under 5Mpa pressure, add the Ni (NO of 1mol/l in the para amidocyanogen benzoic Acid of 1mol/l
3)
2Dipping is 6 hours in the solution, takes out extruding, and is air-dry, dry under 120 ℃ in air atmosphere then, makes material for removing aldehyde.Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 5ppm, the gas of steam entry concentration 25ppm (nitrogen+air+formaldehyde+water vapour) down at 50 ℃ with this material of 1g.Flow is 30ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 15min, formaldehyde 7 hours.
Embodiment 5
The viscose glue NACF 130 ℃ down dry, but then in a stainless steel pressue device under 8MPa pressure, add the Mn (AC) of 2mol/l in the para amidocyanogen benzoic Acid of 5mol/l
2Dipping is 2 hours in the solution, takes out extruding, and is air-dry, dry under 135 ℃ in air atmosphere then, makes material for removing aldehyde.Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 1ppm, the gas of steam entry concentration 25ppm (nitrogen+air+formaldehyde+water vapour) down at 80 ℃ with this material of 2g.Flow is 30ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 18min, formaldehyde 10 hours.
Embodiment 6
The pitch NACF 150 ℃ down dry, but then in a stainless steel pressue device under 10Mpa pressure, add the CuCl of 10mol/l in the para-anilinesulfonic acid of 10mol/l
2Dipping is 0.5 hour in the solution, takes out extruding, and is air-dry, dry under 150 ℃ in air atmosphere then, makes material for removing aldehyde.Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 5ppm, the gas of steam entry concentration 20ppm (nitrogen+air+formaldehyde+water vapour) down at 100 ℃ with this material of 0.5g.Flow is 30ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 20min, formaldehyde 6.5 hours.
Comparative Examples
Adopt former state polyacrylonitrile active carbon fiber (the BET specific area 750m identical with embodiment 1
2/ g), performance test is with embodiment 1, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 5min, formaldehyde 60min.
Claims (3)
1. the preparation method of a material for removing aldehyde, it is characterized in that NACF dry down at 100-150 ℃, working concentration is that the mixed solution of the transition metal salt of the para amidocyanogen benzoic Acid of 0.01-10mol/l or para-anilinesulfonic acid and 0.01-10mol/l is under the 0.2-10MPa condition impregnation process 0.5-24 hour at normal pressure or pressure then, take out extruding, air-dry, in 100-150 ℃ of oven dry, make the activated carbon fiber material that removes aldehyde material.
2. the preparation method of a kind of material for removing aldehyde as claimed in claim 1 is characterized in that described NACF is polyacrylonitrile active carbon fiber, viscose-based active carbon fiber or asphalt based active carbon fiber.
3. the preparation method of a kind of material for removing aldehyde as claimed in claim 1 is characterized in that described transition metal salt is sulfate, nitrate, acetate or the halide of copper, iron, nickel, cobalt, manganese.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116544 CN1128662C (en) | 2002-04-08 | 2002-04-08 | Process for preparing dealdehydizing material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116544 CN1128662C (en) | 2002-04-08 | 2002-04-08 | Process for preparing dealdehydizing material |
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| CN1386577A CN1386577A (en) | 2002-12-25 |
| CN1128662C true CN1128662C (en) | 2003-11-26 |
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| CN 02116544 Expired - Fee Related CN1128662C (en) | 2002-04-08 | 2002-04-08 | Process for preparing dealdehydizing material |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301780C (en) * | 2004-04-30 | 2007-02-28 | 罗文圣 | Noxious gas catching material and its preparation method |
| CN101890263B (en) * | 2010-06-17 | 2012-09-19 | 佛山市顺德区阿波罗环保器材有限公司 | Filter material for removing aldehydes |
| CN102631882A (en) * | 2012-04-23 | 2012-08-15 | 常州亚环环保科技有限公司 | Preparation method of magnetic nanometer material for treating 2-chlorine-3-pyridinecarbaldehydes waste |
| CN103146320B (en) * | 2013-03-25 | 2016-01-13 | 上海晶华胶粘新材料股份有限公司 | U.S. line masking tape and manufacture craft thereof |
| CN108136311B (en) * | 2015-10-22 | 2021-07-27 | 格瑞福技术有限公司 | Treated activated carbon for removal of organic and inorganic contaminants from air |
| CN109647354B (en) * | 2019-02-18 | 2021-12-31 | 郑州大学 | Application of modified fiber in purifying VOC |
| CN110860179B (en) * | 2019-12-04 | 2021-10-26 | 燕山大学 | Formaldehyde scavenging agent and preparation method thereof |
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2002
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| CN1386577A (en) | 2002-12-25 |
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