CN108744727A - A kind of Household ceramic filter core and preparation method thereof - Google Patents

A kind of Household ceramic filter core and preparation method thereof Download PDF

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Publication number
CN108744727A
CN108744727A CN201810423142.7A CN201810423142A CN108744727A CN 108744727 A CN108744727 A CN 108744727A CN 201810423142 A CN201810423142 A CN 201810423142A CN 108744727 A CN108744727 A CN 108744727A
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filter core
ceramic filter
weight
parts
household ceramic
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郭常青
吴学军
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Anhui Lg Environmental Technology Co Ltd
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Anhui Lg Environmental Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/20Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068Other inorganic materials, e.g. ceramics
    • B01D39/2093Ceramic foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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 with stationary adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14Diatomaceous earth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0407Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10Filtering material manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708Volatile organic compounds V.O.C.'s

Abstract

The present invention relates to technical field of air purification, and in particular to a kind of Household ceramic filter core and preparation method thereof includes the following steps:(1) stalk is annealed to obtain porous activated carbon;(2) it uses maleic anhydride and ammonium acetate to diatomite modified, obtains modification infusorial earth;(3) organic titanate, pink salt and ammonium carbonate are uniformly mixed in a solvent, porous activated carbon, CH is then added3NH3I and silane coupling agent and modification infusorial earth, are sealed thermal response, obtain compound adsorbent;(4) it is fired after mixing compound adsorbent with clay, obtains Household ceramic filter core.The Household ceramic filter core of the present invention can adsorb the pernicious gas in air, and pernicious gas is catalyzed inside filter core, to reach reduction harmful gas concentration, the effect of air is purified, ensures air safety, the living environment of health is provided for people.

Description

A kind of Household ceramic filter core and preparation method thereof
Technical field
The present invention relates to technical field of air purification, and in particular to a kind of Household ceramic filter core and preparation method thereof.
Background technology
Currently, air pollution, such as formaldehyde, volatile organic matter VOC, PM2.5 particle, are good for atmospheric environment and human body Health produces serious influence, such as:Stimulate skin, respiratory tract, mutagenicity, the carcinogenesis etc. of people.How air dirt is eliminated The problem of dye purifies air, becomes people's growing interest.The quality of room air is to influence the weight of health and thought mood Want factor.Currently, the air purification method used both at home and abroad, mainly there is air suction method, covering method, oxidizing process etc..Using pumping Filter method, needs heavy mechanical equipment, is difficult to carry out in environment such as room, compartment, lavatories;Covering method is covered with spraying aromatic substance Lid peculiar smell, but injury of the smell substance to human body cannot be eliminated;Oxidizing process is to generate negative oxygen ion to air using electrolysis principle Carry out disinfection purification, but the effect is unsatisfactory, and higher price.Air purifying filter core is to utilize adsorbent, strong oxidizer And aromatic substance, comprehensive purifying processing is carried out to room air, can thoroughly eliminate peculiar smell, purifies air.Common air is net It is relatively low to the adsorption rate of harmful substance to change filter core, and service life is low, be easy to cause secondary pollution.
Invention content
It is of the existing technology the purpose of the invention is to overcome the problems, such as, a kind of Household ceramic filter core and its preparation are provided Method, the Household ceramic filter core can adsorb the pernicious gas in air, and be carried out to pernicious gas inside filter core Catalysis purifies the effect of air to reach reduction harmful gas concentration, ensures air safety, provides health for people Living environment.
To achieve the goals above, the present invention provides a kind of preparation method of Household ceramic filter core, includes the following steps:
(1) anneal stalk 5~12h in atmosphere of inert gases at 200~600 DEG C, obtains porous activated carbon;
(2) in water after mixing by diatomite and maleic anhydride, ammonium acetate, 30~60min of microwave reaction is changed Property diatomite;
(3) organic titanate, pink salt and ammonium carbonate are uniformly mixed in a solvent, then be added porous activated carbon, CH3NH3I and silane coupling agent and modification infusorial earth, 20~60min of ultrasonic disperse then seal thermal response at 100~160 DEG C 2~6h obtains compound adsorbent;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 4~6h is fired at 1100~1150 DEG C;Surface polishing is carried out after firing, obtains Household ceramic Filter core.
The present invention also provides a kind of Household ceramic filter cores being prepared according to the above method.
Through the above technical solutions, diatomite is a kind of clay mineral of zeopan containing Shuifu County of tool chain layer structure, Intercalation modifying is carried out to diatomite by maleic anhydride and ammonium acetate, diatomaceous interlamellar spacing can be expanded, and in diatomite layer Between introduce amino, amino has good compatibility with formaldehyde, the formaldehyde capableing of in the absorption air of selectivity;Then again with have Organic titanate, organic titanate, porous activated carbon, CH3NH3On the one hand I reactions can be carried in diatomite Intercalation reaction activated carbon High diatomaceous specific surface area and adsorption capacity;On the other hand, additionally it is possible to the titanium dioxide of tin modification is introduced in diatomite, Tin modification titanium dioxide is capable of the pernicious gas of catalytic degradation absorption, further decreases pernicious gas absorption resistance, improves harmful The removal rate of gas, and secondary pollution will not be caused, while extending the use for the adsorbent of separating formaldehyde from air Service life.
Specific implementation mode
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of Household ceramic filter core, is made of the substance of following parts by weight::50~100 weight of diatomite Part, 30~80 parts by weight of stalk, 5~15 parts by weight of maleic anhydride, 5~15 parts by weight of ammonium acetate, 6~24 weight of organic titanate Part, 0.2~1 parts by weight of pink salt, CH3NH32~8 parts by weight of I, 1~8 parts by weight of ammonium carbonate, 3~5 parts by weight of silane coupling agent, 100~250 parts by weight of clay, 50~120 parts by weight of solvent.
Under optimum condition, the Household ceramic filter core is made of the substance of following parts by weight:60~80 weight of diatomite Part, 30~80 parts by weight of stalk, 5~15 parts by weight of maleic anhydride, 8~12 parts by weight of ammonium acetate, 12~20 weight of organic titanate Measure part, 0.2~0.6 parts by weight of pink salt, CH3NH33~6 parts by weight of I, 2~6 parts by weight of ammonium carbonate, 3~5 weight of silane coupling agent Part, 100~250 parts by weight of clay, 100~120 parts by weight of solvent.
The present invention also provides a kind of preparation methods of the Household ceramic filter core, include the following steps:
(1) anneal stalk 5~12h in atmosphere of inert gases at 200~600 DEG C, obtains porous activated carbon;
(2) in water after mixing by diatomite and maleic anhydride, ammonium acetate, 30~60min of microwave reaction is changed Property diatomite;
(3) organic titanate, pink salt and ammonium carbonate are uniformly mixed in a solvent, then be added porous activated carbon, CH3NH3I and silane coupling agent and modification infusorial earth, 20~60min of ultrasonic disperse then seal thermal response at 100~160 DEG C 2~6h obtains compound adsorbent;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 4~6h is fired at 1100~1150 DEG C;Surface polishing is carried out after firing, obtains Household ceramic Filter core.
Stalk contains abundant pore structure, and material feedstock derives from a wealth of sources, and after being calcined to it, can generate with height The porous activated carbon of specific surface area, high adsorption, the present invention do not have the type of stalk special requirement.
In order to further increase the porosity in diatomite, organic impurities is removed, under optimum condition, the present invention is also to diatom Soil is pre-processed, and the pretreating process is the 1~3h that anneals at 300~500 DEG C;It is furthermore preferred that the diatomaceous grain Diameter is 200~500nm.
Intercalation modifying is carried out to diatomite by maleic anhydride and ammonium acetate, can expand diatomaceous interlamellar spacing, and Amino is introduced between diatomite layer, amino has good compatibility with formaldehyde, the formaldehyde capableing of in the absorption air of selectivity;It is excellent Under the conditions of choosing, the frequency of the microwave reaction is 1000~1800KHZ, and power is 500~800W.
By by porous carbon and organic titanate, pink salt and CH in the present invention3NH3I reacts, can be in the hole of porous carbon Interior generation CH3NH3The modification TiO that I and metallic element are modified altogether2, avoid TiO2Poorly conductive and light induced electron and hole hold The shortcomings that easily recombinating, to improve the visible light-responded range and response intensity of titanium dioxide, improves the catalysis of titanium dioxide Efficiency;Under optimum condition, the mass ratio of the organic titanate and pink salt is (30~100):1.It is described organic under optimum condition Titanate esters in tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, tetrabutyl titanate, tetra-n-butyl titanate extremely Few one kind.Under optimum condition, the silane coupling agent is selected from aminopropyl triethoxysilane, aminopropyl trimethoxysilane, 2- Aminoethyl amino propyl trimethoxy silane, divinyl triammonium base propyl trimethoxy silicane, aminoethylaminopropyl methyl dimethoxy oxygen In base silane, aminoethylaminopropyl triethoxysilane, urea propyl-triethoxysilicane and urea propyl trimethoxy silicane extremely Few one kind.
Under optimum condition, the solvent is in glycerine, ethyl alcohol, isopropanol, propylene glycol, ethylene glycol, water and n-butanol At least one.
The present invention will be described in detail by way of examples below.
Embodiment 1
A kind of Household ceramic filter core, is made of the substance of following parts by weight:75 parts by weight of diatomite, 50 weight of wheat stalk Part, 8 parts by weight of maleic anhydride, 10 parts by weight of ammonium acetate, 16 parts by weight of tetrabutyl titanate, 0.4 parts by weight of stannic chloride, CH3NH3I 5 parts by weight, 4 parts by weight of ammonium carbonate, 4 parts by weight of divinyl triammonium base propyl trimethoxy silicane, 200 parts by weight of clay, water 100 Parts by weight.
The preparation method of the Household ceramic filter core, includes the following steps:
(1) anneal wheat stalk 8h in argon atmosphere at 300 DEG C, obtains porous activated carbon;
(2) diatomite is annealed 2h at 350 DEG C;Then in water after mixing with maleic anhydride and ammonium acetate, micro- Wave reacts 60min, and the frequency of the microwave reaction is 1200KHZ, and power 600W obtains modification infusorial earth;
(3) stannic chloride, tetrabutyl titanate and ammonium carbonate are uniformly mixed in water, porous active is then added Charcoal, CH3NH3I and divinyl triammonium base propyl trimethoxy silicane and modification infusorial earth, ultrasonic disperse 30min, then at 120 DEG C Lower sealing thermal response 3h, obtains composite nano adsorbent;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 4h is fired at 1100 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
Embodiment 2
A kind of Household ceramic filter core, is made of the substance of following parts by weight:80 parts by weight of diatomite, 40 weight of wheat stalk Part, 10 parts by weight of maleic anhydride, 8 parts by weight of ammonium acetate, 12 parts by weight of tetramethoxy titanate ester, 0.4 parts by weight of stannic chloride, CH3NH3I 3.2 parts by weight, 4 parts by weight of ammonium carbonate, 4.5 parts by weight of urea propyl trimethoxy silicane, 150 parts by weight of clay, 100 weight of water Part.
The preparation method of the Household ceramic filter core, includes the following steps:
(1) anneal wheat stalk 6h in argon atmosphere at 400 DEG C, obtains porous activated carbon;
(2) anneal diatomite 1~3h at 300~500 DEG C;Then it is mixed in water with maleic anhydride and ammonium acetate After even, the frequency of 30~60min of microwave reaction, the microwave reaction are 1000~1800KHZ, and power is 500~800W, is obtained Modification infusorial earth;
(3) stannic chloride, tetramethoxy titanate ester and ammonium carbonate are uniformly mixed in water, then be added porous activated carbon, CH3NH3I and urea propyl trimethoxy silicane and modification infusorial earth, ultrasonic disperse 30min then seal thermal response at 120 DEG C 4h obtains composite nano adsorbent;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 6h is fired at 1150 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
Embodiment 3
A kind of Household ceramic filter core, is made of the substance of following parts by weight:60 parts by weight of diatomite, 60 weight of rice straw Part, 6 parts by weight of maleic anhydride, 12 parts by weight of ammonium acetate, 24 parts by weight of tetramethoxy titanate ester, 0.6 parts by weight of stannic chloride, CH3NH3I 5.3 parts by weight, 2 parts by weight of ammonium carbonate, 3.5 parts by weight of aminoethylaminopropyl triethoxysilane, 100 parts by weight of clay, second two 50 parts by weight of alcohol.
The preparation method of the Household ceramic filter core, includes the following steps:
(1) anneal rice straw 8h in argon atmosphere at 500 DEG C, obtains porous activated carbon;
(2) diatomite is annealed 3h at 300 DEG C;Then in water after mixing with maleic anhydride, ammonium acetate, microwave 45min is reacted, the frequency of the microwave reaction is 1500KHZ, and power 600W obtains modification infusorial earth;
(3) stannic chloride, tetramethoxy titanate ester and ammonium carbonate are uniformly mixed in ethylene glycol, porous active is then added Charcoal, CH3NH3I and aminoethylaminopropyl triethoxysilane and modification infusorial earth, ultrasonic disperse 30min are then close at 120 DEG C Thermal response 3h is sealed, composite nano adsorbent is obtained;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 5h is fired at 1100 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
Embodiment 4
A kind of Household ceramic filter core, is made of the substance of following parts by weight:100 parts by weight of diatomite, 80 weight of wheat stalk Measure part, 5 parts by weight of maleic anhydride, 5 parts by weight of ammonium acetate, 20 parts by weight of tetraethyl titanate, 0.2 parts by weight of stannic chloride, CH3NH3I 2 parts by weight, 8 parts by weight of ammonium carbonate, 3 parts by weight of aminoethylaminopropyl triethoxysilane, 250 parts by weight of clay, 120 weight of ethyl alcohol Measure part.
The preparation method of the Household ceramic filter core, includes the following steps:
(1) anneal wheat stalk 12h in argon atmosphere at 200 DEG C, obtains porous activated carbon;
(2) diatomite is annealed 1h at 500 DEG C;Then in water after mixing with maleic anhydride, ammonium acetate, microwave 30min is reacted, the frequency of the microwave reaction is 1800KHZ, and power 500W obtains modification infusorial earth;
(3) stannic chloride, tetraethyl titanate and ammonium carbonate are uniformly mixed in ethanol, porous active is then added Charcoal, CH3NH3I, aminoethylaminopropyl triethoxysilane and modification infusorial earth, ultrasonic disperse 60min are then close at 100 DEG C Thermal response 6h is sealed, composite nano adsorbent is obtained;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 6h is fired at 1100 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
Embodiment 5
A kind of Household ceramic filter core, is made of the substance of following parts by weight:50 parts by weight of diatomite, 30 weight of wheat stalk Part, 15 parts by weight of maleic anhydride, 15 parts by weight of ammonium acetate, 24 parts by weight of tetraisopropyl titanate, 1 parts by weight of quanmethyl silicate, CH3NH38 parts by weight of I, 1 parts by weight of ammonium carbonate, 5 parts by weight of urea propyl-triethoxysilicane, 120 amount part of clay, isopropanol 100 Parts by weight.
The preparation method of the Household ceramic filter core, includes the following steps:
(1) anneal wheat stalk 12h in argon atmosphere at 600 DEG C, obtains porous activated carbon;
(2) in water after mixing by diatomite and maleic anhydride, ammonium acetate, microwave reaction 60min, the microwave are anti- The frequency answered is 1000KHZ, and power 800W obtains modification infusorial earth;
(3) quanmethyl silicate, tetraisopropyl titanate and ammonium carbonate are uniformly mixed in isopropanol, are then added more Mesoporous activated carbon, CH3NH3I, urea propyl-triethoxysilicane and modification infusorial earth, ultrasonic disperse 20min are then close at 160 DEG C Thermal response 2h is sealed, composite nano adsorbent is obtained;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 4h is fired at 1150 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
Comparative example 1
A kind of Household ceramic filter core, is made of the substance of following parts by weight:75 parts by weight of diatomite, 8 weight of maleic anhydride Part, 10 parts by weight of ammonium acetate, 16 parts by weight of tetrabutyl titanate, 0.4 parts by weight of stannic chloride, CH3NH35 parts by weight of I, ammonium carbonate 4 Parts by weight, 4 parts by weight of divinyl triammonium base propyl trimethoxy silicane, 200 parts by weight of clay, 100 parts by weight of water.
The preparation method of the Household ceramic filter core, includes the following steps:
(1) diatomite is annealed 2h at 350 DEG C;Then in water after mixing with maleic anhydride, ammonium acetate, microwave 60min is reacted, the frequency of the microwave reaction is 1200KHZ, and power 600W obtains modification infusorial earth;
(2) stannic chloride, tetrabutyl titanate and ammonium carbonate are uniformly mixed in water, CH is then added3NH3I and two Ethylene triamido propyl trimethoxy silicane, modification infusorial earth, ultrasonic disperse 30min then seal thermal response at 120 DEG C 3h,
(3) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 6h is fired at 1150 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
Comparative example 2
A kind of Household ceramic filter core, is made of the substance of following parts by weight:75 parts by weight of diatomite, 50 weight of wheat stalk Part, 10 parts by weight of ammonium acetate, 8 parts by weight of maleic anhydride, 16 parts by weight of tetrabutyl titanate, divinyl triammonium base propyl trimethoxy 4 parts by weight of base silane, 200 parts by weight of clay, 100 parts by weight of water.
The preparation method of the Household ceramic filter core, includes the following steps:
(1) anneal wheat stalk 8h in argon atmosphere at 300 DEG C, obtains porous activated carbon;
(2) diatomite is annealed 2h at 350 DEG C;Then in water after mixing with maleic anhydride, ammonium acetate, microwave 60min is reacted, the frequency of the microwave reaction is 1200KHZ, and power 600W obtains modification infusorial earth;
(3) tetrabutyl titanate is uniformly mixed in water, porous activated carbon and divinyl triammonium base is then added Propyl trimethoxy silicane and modification infusorial earth, ultrasonic disperse 30min then seal thermal response 3h at 120 DEG C, obtain compound Nano adsorber;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core Shape makes molding;Then 6h is fired at 1150 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
Experiment test:
The purifying property of Household ceramic filter core PARA FORMALDEHYDE PRILLS(91,95) in 1-5 of the embodiment of the present invention and comparative example 1-2 is evaluated in Φ It is carried out in the straight type polytetrafluoroethylene (PTFE) pipe reactor of 20mm, long 200mm, polytetrafluoroethylene (PTFE) pipe reactor is added in Household ceramic filter core In, unstripped gas group becomes:Concentration of formaldehyde 300mg/m3, remaining is air.Reaction carries out under 25 DEG C of atmospheric pressure environments, reaction gas Product air speed (GHSV) is 3000h-1, experimental result is as shown in table 1.
Table 1:The purifying property of Household ceramic filter core PARA FORMALDEHYDE PRILLS(91,95) in embodiment and comparative example
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In the skill of the present invention In art conception range, technical scheme of the present invention can be carried out a variety of simple variants, including each technical characteristic with it is any its Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to Protection scope of the present invention.

Claims (8)

1. a kind of preparation method of Household ceramic filter core, which is characterized in that include the following steps:
(1) anneal stalk 5~12h in atmosphere of inert gases at 200~600 DEG C, obtains porous activated carbon;
(2) in water after mixing by diatomite and maleic anhydride, ammonium acetate, 30~60min of microwave reaction obtains modified silicon Diatomaceous earth;
(3) organic titanate, pink salt and ammonium carbonate are uniformly mixed in a solvent, then be added porous activated carbon, CH3NH3I and silane coupling agent and modification infusorial earth, 20~60min of ultrasonic disperse then seal thermal response at 100~160 DEG C 2~6h obtains compound adsorbent;
(4) it is refined through soil kneader after compound adsorbent being mixed with clay, is fabricated to porcelain mud;And press required filter core shape Make molding;Then 4~6h is fired at 1100~1150 DEG C;Surface polishing is carried out after firing, obtains Household ceramic filter core.
2. the preparation method of Household ceramic filter core according to claim 1, which is characterized in that further include diatomaceous pre- place Science and engineering skill, the pretreating process are the 1~3h that anneals at 300~500 DEG C;
The diatomaceous grain size is 200~500nm.
3. the preparation method of Household ceramic filter core according to claim 1, which is characterized in that the organic titanate is selected from At least one of tetraethyl titanate, tetramethoxy titanate ester, tetraisopropyl titanate, tetrabutyl titanate, tetra-n-butyl titanate.
4. the preparation method of Household ceramic filter core according to claim 1, which is characterized in that the organic titanate and have The mass ratio of pink salt is (30~100):1.
5. the preparation method of Household ceramic filter core according to claim 1, which is characterized in that the silane coupling agent is selected from Aminopropyl triethoxysilane, aminopropyl trimethoxysilane, 2- aminoethyl amino propyl trimethoxy silanes, aminoethylaminopropyl At least one of methyl dimethoxysilane, aminoethylaminopropyl triethoxysilane and urea propyl trimethoxy silicane.
6. the preparation method of Household ceramic filter core according to claim 1, which is characterized in that described micro- in step (2) The frequency of wave reaction is 1000~1800KHZ, and power is 500~800W.
7. the preparation method of Household ceramic filter core according to claim 1, which is characterized in that the solvent is selected from the third three At least one of alcohol, ethyl alcohol, isopropanol, propylene glycol, ethylene glycol, water and n-butanol.
8. a kind of Household ceramic filter core, which is characterized in that according to the preparation method system described in any one of claim 1~7 It is standby to obtain.
CN201810423142.7A 2018-05-05 2018-05-05 A kind of Household ceramic filter core and preparation method thereof Pending CN108744727A (en)

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