CN106075798A - The minimizing technology of formaldehyde in a kind of finishing material - Google Patents
The minimizing technology of formaldehyde in a kind of finishing material Download PDFInfo
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- CN106075798A CN106075798A CN201610508554.1A CN201610508554A CN106075798A CN 106075798 A CN106075798 A CN 106075798A CN 201610508554 A CN201610508554 A CN 201610508554A CN 106075798 A CN106075798 A CN 106075798A
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- formaldehyde
- finishing material
- zeolite
- catalyst
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/82—Phosphates
- B01J29/83—Aluminophosphates (APO compounds)
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
Abstract
The invention discloses the minimizing technology of formaldehyde in a kind of finishing material, described method is: in fixed bed, N2:O2It is 7～3:3 ~ 1, N2And O2Overall flow rate be 80～142mL/min, air speed is 36000～40000h‑1, reaction temperature is 38～75 DEG C, and under conditions of catalyst exists, is removed the formaldehyde in finishing material.Compared with prior art, the invention have the advantages that in (1) finishing material of the present invention, the minimizing technology of formaldehyde is good to the formaldehyde removal effect in finishing material, and remain to when indoor formaldehyde concentration is relatively low produce better effects；(2) use of the method for the invention united catalyst makes the formaldehyde in finishing material remove and is not limited solely to physisorption, so that indoor formaldehyde is removed the most thorough.
Description
Technical field
The invention belongs to field of Environment Protection, relate to the removal of domestic finishing material harmful substance, particularly relate to a kind of finishing material
The minimizing technology of formaldehyde in material.
Background technology
House decoration is also known as house decoration, home decoration.Refer to carry out in room, including walking Hydroelectric Project Construction, wall
Body, floor, ceiling, view etc. are realized, and a whole set of construction formed according to certain design concept and rule attractive in appearance is conciliate
Certainly scheme.Little to furniture put door towards, big to room accessories and the customized treatment of light fixture, be all the embodiment of finishing.Dress
Repairing and decorate difference, decoration is the maneuver that the articles for daily use or living environment carry out art processing.Strengthen aesthetic effect, and improve
Its function, economic worth and social benefit, and with environmental protection as design concept.Perfect decoration closely should be tied with the function of object
Close, adapt to processing technology, play the performance of material, and there is good artistic effect.
Formaldehyde Pollution of Indoor Air is mainly derived from the artificial boards such as plywood that finishing used, pin chips, particieboard, from
In materials such as ornamental wallpaper, wall covering fabric and paint, and use the furniture that defective sheet material made.For Interior Space
In gas, there is a unified standard i.e. 0.08mg/m in content of formaldehyde country3, exceed this standard and human body will be produced significantly damage
Evil.
Formaldehyde mainly has the following aspects to health hazard:
A, stimulation: the main harm of formaldehyde shows as Mucocutaneous stimulation, formaldehyde is protoplasmic poison material, can be with
There is the serious stimulation of respiratory tract and edema, Eye irritation, headache in protein bound, high concentration when sucking.
B, sensitization: direct skin contact formaldehyde can cause allergic dermatitis, mottle, necrosis, suck high-concentration formaldehyde
Time can induce bronchial asthma.
C, mutagenic action: high-concentration formaldehyde or a kind of genotoxicity material.Laboratory animal is inhaled in laboratory high concentration
In the case of entering, rhinopharyngeal neoplasm can be caused.
D, outstanding behaviours: headache, dizzy, weak, Nausea and vomiting, uncomfortable in chest, ophthalmalgia, have a throat-ache, stomach poor appetite, cardiopalmus, mistake
Sleep, lose weight, note power goes down and autonomic nervous dysfunction etc.；Anemia of pregnant woman sucks for a long time and may cause fetal anomaly, even dead,
Man sucks for a long time and may result in man's sperm deformity, death etc..
Formaldehyde pollution to be reduced, the most basic method seeks to select regular fitting-up unit or company, purchases
Buy the decoration material meeting national safety standard, tackle room after finishing and be estimated, move in the most again.Its
The less product of penetrating odor that is secondary, that regular enterprise should be selected to produce when buying furniture, because penetrating odor is the biggest, explanation
The release of its toxic gas is the most.Newly purchased furniture first vacant a period of time can also be re-used by the loose family of condition.
The room serious to existing formaldehyde pollution, can first look for indoor air environment to detect department and detect on the spot,
Analyze its source, then require that responsible party solves according to testing result.Cause serious harm can pass through legal means
Solve.Finally, relative pollution level is lighter, then can be by windowing ventilation or support a little flowers and plants in indoor and reduce
Its harm.
At present, remove formaldehyde in finishing material frequently with the dispersion of formaldehyde remover being positioned between new clothes repair the house, and first
Aldehyde remover basic composition is attapulgite, bentonite, meerschaum, kieselguhr, zirconium phosphate and titanium dioxide etc..Said components
Formaldehyde remover remove formaldehyde principle be physical adsorption process, indoor formaldehyde can only be adsorbed in remover by the method,
Consequently only that just can have adsorption effect when indoor formaldehyde exceedes certain threshold value, but and when relatively low being enough to of concentration of formaldehyde is caused
During human injury, the adsorption effect of remover is poor.
Summary of the invention
Present invention solves the technical problem that and be: in order to overcome the defect of prior art, it is thus achieved that be a kind of to indoor hardware fitting
Formaldehyde removal effect is good, and the method that can be at all removed by indoor formaldehyde, the invention provides formaldehyde in a kind of finishing material
Minimizing technology.
Technical scheme: the minimizing technology of formaldehyde in a kind of finishing material, described method is:
In fixed bed, N2:O2It is 7～3:3 ~ 1, N2And O2Overall flow rate be 80～142mL/min, air speed be 36000～
40000h-1, reaction temperature is 38～75 DEG C, and under conditions of catalyst exists, is removed the formaldehyde in finishing material；
Wherein, catalyst, by weight, composed of the following components: phosphate aluminium molecular sieve 16～33 parts, COK-5 zeolite 17～32
Part, ZSM-5 zeolite 16～31 parts, sodium phosphate 14～35 parts, calcium carbonate 13～25 parts, silver nitrate 7～18 parts, graphite 8～22 parts,
Sodium fluoride 8～13 parts, magnesium carbonate 8～17 parts, titanium dioxide 8～19 parts.
The minimizing technology of formaldehyde in a kind of finishing material, described catalyst is prepared by following methods:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in aqueous slkali, pH value is adjusted to 12.0～15.0, magnetic
Power stirs, hydrolysis aging 7～25 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.0～6.0, is added thereto to sodium phosphate and calcium carbonate,
Crystallization 16～32 hours under the conditions of 121～135 DEG C, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Roasting 2～4 hours under the conditions of 560～780 DEG C, can be prepared by.
Preferably, in described finishing material, the minimizing technology of formaldehyde is: in fixed bed, N2:O2For 5:2, N2And O2Total
Flow velocity is 125mL/min, and air speed is 38500h-1, reaction temperature is 67 DEG C, and under conditions of catalyst exists, to finishing material
Formaldehyde in material is removed.
Preferably, described catalyst, by weight, composed of the following components: phosphate aluminium molecular sieve 28 parts, COK-5 zeolite
26 parts, ZSM-5 zeolite 23 parts, sodium phosphate 27 parts, calcium carbonate 21 parts, silver nitrate 14 parts, 16 parts of graphite, sodium fluoride 11 parts, carbonic acid
13 parts of magnesium, titanium dioxide 16 parts.
Preferably, described catalyst is prepared by following methods:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in aqueous slkali, pH value is adjusted to 13.5, magnetic agitation,
Hydrolyze and aging 21 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.4, is added thereto to sodium phosphate and calcium carbonate, at 129 DEG C of bars
Crystallization 28 hours under part, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Under the conditions of 725 DEG C, roasting 3 hours, can be prepared by.
Beneficial effect: in (1) finishing material of the present invention, the minimizing technology of formaldehyde is to the formaldehyde removal effect in finishing material
Good, and remain to when indoor formaldehyde concentration is relatively low produce better effects；(2) use of the method for the invention united catalyst makes
Obtain the removal of the formaldehyde in finishing material and be not limited solely to physisorption, so that indoor formaldehyde is removed the most thorough.
Detailed description of the invention
Embodiment 1
The minimizing technology of formaldehyde in a kind of finishing material, described method is:
In fixed bed, N2:O2For 7:3, N2And O2Overall flow rate be 80mL/min, air speed is 36000h-1, reaction temperature is 38
DEG C, and under conditions of catalyst exists, the formaldehyde in finishing material is removed；
Wherein, catalyst, by weight, composed of the following components: phosphate aluminium molecular sieve 16 parts, 17 parts of COK-5 zeolite, ZSM-5
16 parts of zeolite, sodium phosphate 14 parts, calcium carbonate 13 parts, silver nitrate 7 parts, 8 parts of graphite, sodium fluoride 8 parts, magnesium carbonate 8 parts, titanium dioxide
8 parts.
The minimizing technology of formaldehyde in a kind of finishing material, described catalyst is prepared by following methods:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in aqueous slkali, pH value is adjusted to 12.0, magnetic agitation,
Hydrolyze and aging 7 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.0, is added thereto to sodium phosphate and calcium carbonate, at 121 DEG C of bars
Crystallization 16 hours under part, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Under the conditions of 560 DEG C, roasting 2 hours, can be prepared by.
Embodiment 2
The minimizing technology of formaldehyde in a kind of finishing material, described method is:
In fixed bed, N2:O2For 5:2, N2And O2Overall flow rate be 125mL/min, air speed is 38500h-1, reaction temperature is 67
DEG C, and under conditions of catalyst exists, the formaldehyde in finishing material is removed；
Wherein, catalyst, by weight, composed of the following components: phosphate aluminium molecular sieve 28 parts, 26 parts of COK-5 zeolite, ZSM-5
23 parts of zeolite, sodium phosphate 27 parts, calcium carbonate 21 parts, silver nitrate 14 parts, 16 parts of graphite, sodium fluoride 11 parts, magnesium carbonate 13 parts, dioxy
Change titanium 16 parts.
The minimizing technology of formaldehyde in a kind of finishing material, described catalyst is prepared by following methods:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in aqueous slkali, pH value is adjusted to 13.5, magnetic agitation,
Hydrolyze and aging 21 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.4, is added thereto to sodium phosphate and calcium carbonate, at 129 DEG C of bars
Crystallization 28 hours under part, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Under the conditions of 725 DEG C, roasting 3 hours, can be prepared by.
Embodiment 3
The minimizing technology of formaldehyde in a kind of finishing material, described method is:
In fixed bed, N2:O2For 3:1, N2And O2Overall flow rate be 142mL/min, air speed is 40000h-1, reaction temperature is 75
DEG C, and under conditions of catalyst exists, the formaldehyde in finishing material is removed；
Wherein, catalyst, by weight, composed of the following components: phosphate aluminium molecular sieve 33 parts, 32 parts of COK-5 zeolite, ZSM-5
31 parts of zeolite, sodium phosphate 35 parts, calcium carbonate 25 parts, silver nitrate 18 parts, 22 parts of graphite, sodium fluoride 13 parts, magnesium carbonate 17 parts, dioxy
Change titanium 19 parts.
The minimizing technology of formaldehyde in a kind of finishing material, described catalyst is prepared by following methods:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in aqueous slkali, pH value is adjusted to 15.0, magnetic agitation,
Hydrolyze and aging 25 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 6.0, is added thereto to sodium phosphate and calcium carbonate, at 135 DEG C of bars
Crystallization 32 hours under part, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Under the conditions of 780 DEG C, roasting 4 hours, can be prepared by.
Reference examples 1
Difference with embodiment 2 is in catalyst not contain phosphate aluminium molecular sieve, specific as follows:
The minimizing technology of formaldehyde in a kind of finishing material, described method is:
In fixed bed, N2:O2For 5:2, N2And O2Overall flow rate be 125mL/min, air speed is 38500h-1, reaction temperature is 67
DEG C, and under conditions of catalyst exists, the formaldehyde in finishing material is removed；
Wherein, catalyst, by weight, composed of the following components: 26 parts of COK-5 zeolite, ZSM-5 zeolite 23 parts, sodium phosphate
27 parts, calcium carbonate 21 parts, silver nitrate 14 parts, 16 parts of graphite, sodium fluoride 11 parts, magnesium carbonate 13 parts, titanium dioxide 16 parts.
The minimizing technology of formaldehyde in a kind of finishing material, described catalyst is prepared by following methods:
(1) COK-5 zeolite and ZSM-5 zeolite being added in aqueous slkali, pH value is adjusted to 13.5, magnetic agitation, hydrolysis is the most aging
21 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.4, is added thereto to sodium phosphate and calcium carbonate, at 129 DEG C of bars
Crystallization 28 hours under part, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Under the conditions of 725 DEG C, roasting 3 hours, can be prepared by.
Reference examples 2
Difference with embodiment 2 is, is acid condition in catalyst preparation step (1), specific as follows:
The minimizing technology of formaldehyde in a kind of finishing material, described method is:
In fixed bed, N2:O2For 5:2, N2And O2Overall flow rate be 125mL/min, air speed is 38500h-1, reaction temperature is 67
DEG C, and under conditions of catalyst exists, the formaldehyde in finishing material is removed；
Wherein, catalyst, by weight, composed of the following components: phosphate aluminium molecular sieve 28 parts, 26 parts of COK-5 zeolite, ZSM-5
23 parts of zeolite, sodium phosphate 27 parts, calcium carbonate 21 parts, silver nitrate 14 parts, 16 parts of graphite, sodium fluoride 11 parts, magnesium carbonate 13 parts, dioxy
Change titanium 16 parts.
The minimizing technology of formaldehyde in a kind of finishing material, described catalyst is prepared by following methods:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in acid solution, pH value is adjusted to 5.2, magnetic agitation,
Hydrolyze and aging 21 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.4, is added thereto to sodium phosphate and calcium carbonate, at 129 DEG C of bars
Crystallization 28 hours under part, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Under the conditions of 725 DEG C, roasting 3 hours, can be prepared by.
Embodiment 4
Application Example 1～3 and reference examples 1～2 described in method remove the formaldehyde in indoor hardware fitting, guest selected by finishing material
The sample of the cabinet in shop, it is airtight for processing space, and result is as follows:
Claims (5)
1. the minimizing technology of formaldehyde in a finishing material, it is characterised in that described method is:
In fixed bed, N2:O2It is 7～3:3 ~ 1, N2And O2Overall flow rate be 80～142mL/min, air speed be 36000～
40000h-1, reaction temperature is 38～75 DEG C, and under conditions of catalyst exists, is removed the formaldehyde in finishing material；
Wherein, catalyst, by weight, composed of the following components: phosphate aluminium molecular sieve 16～33 parts, COK-5 zeolite 17～32
Part, ZSM-5 zeolite 16～31 parts, sodium phosphate 14～35 parts, calcium carbonate 13～25 parts, silver nitrate 7～18 parts, graphite 8～22 parts,
Sodium fluoride 8～13 parts, magnesium carbonate 8～17 parts, titanium dioxide 8～19 parts.
The minimizing technology of formaldehyde in a kind of finishing material the most according to claim 1, it is characterised in that described catalyst by
Following methods prepares:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in aqueous slkali, pH value is adjusted to 12.0～15.0, magnetic
Power stirs, hydrolysis aging 7～25 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.0～6.0, is added thereto to sodium phosphate and calcium carbonate,
Crystallization 16～32 hours under the conditions of 121～135 DEG C, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Roasting 2～4 hours under the conditions of 560～780 DEG C, can be prepared by.
Plant the minimizing technology of formaldehyde in finishing material the most according to claim 1, it is characterised in that described method is: solid
In fixed bed, N2:O2For 5:2, N2And O2Overall flow rate be 125mL/min, air speed is 38500h-1, reaction temperature is 67 DEG C, and
Under conditions of catalyst exists, the formaldehyde in finishing material is removed.
Plant the minimizing technology of formaldehyde in finishing material the most according to claim 1, it is characterised in that described catalyst, by weight
Amount part meter, composed of the following components: phosphate aluminium molecular sieve 28 parts, 26 parts of COK-5 zeolite, ZSM-5 zeolite 23 parts, sodium phosphate 27 parts,
Calcium carbonate 21 parts, silver nitrate 14 parts, 16 parts of graphite, sodium fluoride 11 parts, magnesium carbonate 13 parts, titanium dioxide 16 parts.
Plant the minimizing technology of formaldehyde in finishing material the most according to claim 2, it is characterised in that described catalyst is by following
Method prepares:
(1) phosphate aluminium molecular sieve, COK-5 zeolite and ZSM-5 zeolite are added in aqueous slkali, pH value is adjusted to 13.5, magnetic agitation,
Hydrolyze and aging 21 hours；
(2) in step (1), add hydrochloric acid, its pH value is adjusted to 5.4, is added thereto to sodium phosphate and calcium carbonate, at 129 DEG C of bars
Crystallization 28 hours under part, filter, wash acquisition catalyst precarsor；
(3) catalyst precarsor is mixed with silver nitrate, graphite, sodium fluoride, magnesium carbonate, titanium dioxide, add in Muffle furnace,
Under the conditions of 725 DEG C, roasting 3 hours, can be prepared by.
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