CN106422813A - Ceramic filter membrane and preparation method thereof - Google Patents
Ceramic filter membrane and preparation method thereof Download PDFInfo
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- CN106422813A CN106422813A CN201610832860.0A CN201610832860A CN106422813A CN 106422813 A CN106422813 A CN 106422813A CN 201610832860 A CN201610832860 A CN 201610832860A CN 106422813 A CN106422813 A CN 106422813A
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- filter membrane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Filtering Materials (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a preparation method of a ceramic filter membrane. The preparation method comprises the steps that silicon carbide is calcined at 800-1200 DEG C, then soaked in a hydrogen peroxide aqueous solution for 2-3 hours, and taken out to be washed for use; the treated silicon carbide, ceramic adhesive, sodium carboxymethylcellulose, and activated carbon are mixed with water, and sizing agent M is obtained; the sizing agent M is subjected to die pressing forming, and then the ceramic filter membrane is obtained. According to the preparation method of the ceramic filter membrane, the problems that the whole filtration effect of a common ceramic filter membrane is reduced due to rough surface and low porosity are solved.
Description
Technical field
The present invention relates to filtering material, in particular it relates to ceramic filter membrane and preparation method thereof.
Background technology
Ceramic filter membrane is widely used in high-temperature gas separation udst separation technology, it has also become material, metallurgy, change
The industries such as work, electric power realize the critical component of gas solid separation, energy-conserving and environment-protective.Common ceramic filter membrane, its surface is more coarse,
And porosity is relatively low, ceramic filter membrane integral filter effect is led to decline.
Therefore it provides a kind of surfacing, and porosity is higher, the excellent ceramic filter membrane of filter effect and its preparation side
Method is the problem of urgent need to resolve of the present invention.
Content of the invention
It is an object of the invention to provide a kind of ceramic filter membrane and preparation method thereof, solve common ceramic filter membrane,
Its surface is more coarse, and porosity is relatively low, leads to the problem that ceramic filter membrane integral filter effect declines.
To achieve these goals, a kind of the invention provides preparation method of ceramic filter membrane, wherein, described preparation side
Method includes：
(1) carborundum is carried out at 800-1200 DEG C roasting, soak 2-3h in hydrogen peroxide solution afterwards, take out backlash
Wash standby；
(2) carborundum after above-mentioned process, ceramic bonding agent, sodium carboxymethyl cellulose, activated carbon and water are mixed, obtain
Slurry M；
(3) obtain described ceramic filter membrane after will be dry-pressing formed for described slurry M.
Present invention also offers a kind of ceramic filter membrane, wherein, described ceramic filter membrane is obtained by above-mentioned preparation method.
By technique scheme, the invention provides a kind of preparation method of ceramic filter membrane, wherein, described preparation side
Method includes：Carborundum is carried out at 800-1200 DEG C roasting, soak 2-3h in hydrogen peroxide solution afterwards, rinse standby after taking-up
With；Carborundum after above-mentioned process, ceramic bonding agent, sodium carboxymethyl cellulose, activated carbon and water are mixed, obtains slurry M；Will
Described ceramic filter membrane is obtained after described slurry M is dry-pressing formed；By the synergism between each raw material so that prepared pottery
Filter membrane surface is smooth, and voidage is high, effectively improves the filter efficiency of filter membrane, is simultaneously used for preparing the side of this filter membrane
Method is simple.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
Hereinafter the specific embodiment of the present invention is described in detail.It should be appreciated that it is described herein concrete
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides a kind of preparation method of ceramic filter membrane, wherein, described preparation method includes：By carborundum in
Carry out roasting at 800-1200 DEG C, soak 2-3h in hydrogen peroxide solution afterwards, rinse standby after taking-up；After above-mentioned process
Carborundum, ceramic bonding agent, sodium carboxymethyl cellulose, activated carbon and water mixing, obtain slurry M；Will be dry-pressing formed for described slurry M
After obtain described ceramic filter membrane.
The present invention one kind preferred embodiment in, in order to improve the hole of prepared ceramic filter membrane further
Rate, thus improving filter effect, with respect to 100 weight portion carborundums, the consumption of described ceramic bonding agent is 20-40 weight portion,
The consumption of described sodium carboxymethyl cellulose is 5-15 weight portion, and the consumption of described activated carbon is 2-8 weight portion, the consumption of described water
For 60-80 weight portion.
Preferably, with respect to 100 weight portion carborundums, the consumption of described ceramic bonding agent is 25-35 weight portion, described carboxylic
The consumption of sodium carboxymethylcellulose pyce is 8-12 weight portion, and the consumption of described activated carbon is 4-6 weight portion, and the consumption of described water is 65-
75 weight portions.
In order to increase slurry M concentration so that its can preferably molding, the present invention one kind preferred embodiment
In, described ceramic bonding agent is made up of potassium feldspar powder and kaolin powder, and described potassium feldspar powder and described Kaolin powder
The mass ratio at end is 1：2-4.
The present invention one kind preferred embodiment in so that slurry M can preferably molding, described dry-pressing becomes
The pressure of type is 2-4MPa.
Present invention also offers a kind of ceramic filter membrane, wherein, described ceramic filter membrane is obtained by above-mentioned preparation method.
Hereinafter will be described the present invention by embodiment.In following examples, carborundum, carboxymethyl cellulose
The raw materials such as sodium, activated carbon, potassium feldspar powder and kaolin powder are conventional commercial product.
Embodiment 1
100g carborundum is carried out at 800 DEG C roasting, soak 2h in hydrogen peroxide solution afterwards, rinse standby after taking-up
With；100g carborundum after above-mentioned process, 25g ceramic bonding agent (are made up of potassium feldspar powder and kaolin powder, and described
The mass ratio of potassium feldspar powder and described kaolin powder is 1：2), 8g sodium carboxymethyl cellulose, 4g activated carbon and 65g water mix
Close, obtain slurry M；Obtain described ceramic filter membrane A1 by after dry-pressing formed for described slurry M (pressure is 2MPa).
Embodiment 2
100g carborundum is carried out at 1200 DEG C roasting, soak 3h in hydrogen peroxide solution afterwards, rinse standby after taking-up
With；100g carborundum after above-mentioned process, 35g ceramic bonding agent (are made up of potassium feldspar powder and kaolin powder, and described
The mass ratio of potassium feldspar powder and described kaolin powder is 1：4), 12g sodium carboxymethyl cellulose, 6g activated carbon and 75g water mix
Close, obtain slurry M；Obtain described ceramic filter membrane A2 by after dry-pressing formed for described slurry M (pressure is 4MPa).
Embodiment 3
100g carborundum is carried out at 1000 DEG C roasting, soak 2.5h in hydrogen peroxide solution afterwards, rinse after taking-up
Standby；100g carborundum after above-mentioned process, 30g ceramic bonding agent (are made up of potassium feldspar powder and kaolin powder, and institute
Stating potassium feldspar powder and the mass ratio of described kaolin powder is 1：3), 10g sodium carboxymethyl cellulose, 5g activated carbon and 70g water
Mixing, obtains slurry M；Obtain described ceramic filter membrane A3 by after dry-pressing formed for described slurry M (pressure is 3MPa).
Embodiment 4
Method according to embodiment 1 is prepared, except for the difference that, with respect to 100g carborundum, described ceramic bonding agent
Consumption is 20g, and the consumption of described sodium carboxymethyl cellulose is 5g, and the consumption of described activated carbon is 2g, and the consumption of described water is
60g, obtains described ceramic filter membrane A4.
Embodiment 5
Method according to embodiment 1 is prepared, except for the difference that, with respect to 100g carborundum, described ceramic bonding agent
Consumption is 40g, and the consumption of described sodium carboxymethyl cellulose is 15g, and the consumption of described activated carbon is 8g, and the consumption of described water is
80g, obtains described ceramic filter membrane A5.
Comparative example 1
Method according to embodiment 1 is prepared, except for the difference that, with respect to 100g carborundum, described ceramic bonding agent
Consumption is 15g, and the consumption of described sodium carboxymethyl cellulose is 3g, and the consumption of described activated carbon is 1g, and the consumption of described water is
55g, obtains described ceramic filter membrane D1.
Comparative example 2
Method according to embodiment 1 is prepared, except for the difference that, with respect to 100g carborundum, described ceramic bonding agent
Consumption is 45g, and the consumption of described sodium carboxymethyl cellulose is 20g, and the consumption of described activated carbon is 12g, and the consumption of described water is
90g, obtains described ceramic filter membrane D2.
Table 1
| Embodiment is numbered | Porosity (%) | Filter membrane surface situation |
| A1 | 65 | Surfacing |
| A2 | 62 | Surfacing |
| A3 | 64 | Surfacing |
| A4 | 49 | Surfacing |
| A5 | 53 | Surface is more smooth |
| D1 | 26 | Surface is more coarse |
| D2 | 30 | Surface is more coarse |
The ceramic filter membrane A1-A5 being obtained within the scope of the present invention be can be seen that by upper table data, its porosity is relatively
Height, surfacing, and ceramic filter membrane D1 and D2 being obtained outside the scope of the invention, its porosity is relatively low, and surface is relatively
For coarse, it is hereby achieved that the excellent ceramic filter membrane of surfacing, filter effect.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, multiple simple variant can be carried out to technical scheme, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy no longer separately illustrates.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it equally should be considered as content disclosed in this invention.
Claims (6)
1. a kind of preparation method of ceramic filter membrane is it is characterised in that described preparation method includes：
(1) carborundum is carried out at 800-1200 DEG C roasting, soak 2-3h in hydrogen peroxide solution afterwards, rinse standby after taking-up
With；
(2) carborundum after above-mentioned process, ceramic bonding agent, sodium carboxymethyl cellulose, activated carbon and water are mixed, obtain slurry
M；
(3) obtain described ceramic filter membrane after will be dry-pressing formed for described slurry M.
2. preparation method according to claim 1, wherein, with respect to 100 weight portion carborundums, described ceramic bonding agent
Consumption is 20-40 weight portion, and the consumption of described sodium carboxymethyl cellulose is 5-15 weight portion, and the consumption of described activated carbon is 2-8
Weight portion, the consumption of described water is 60-80 weight portion.
3. preparation method according to claim 2, wherein, with respect to 100 weight portion carborundums, described ceramic bonding agent
Consumption is 25-35 weight portion, and the consumption of described sodium carboxymethyl cellulose is 8-12 weight portion, and the consumption of described activated carbon is 4-6
Weight portion, the consumption of described water is 65-75 weight portion.
4. preparation method according to claim 1, wherein, described ceramic bonding agent is by potassium feldspar powder and kaolin powder
Composition, and the mass ratio of described potassium feldspar powder and described kaolin powder is 1：2-4.
5. preparation method according to claim 1, wherein, dry-pressing formed pressure described in step (3) is 2-4MPa.
6. a kind of ceramic filter membrane is it is characterised in that system described in any one in claim 1-5 for the described ceramic filter membrane
Preparation Method is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610832860.0A CN106422813A (en) | 2016-09-20 | 2016-09-20 | Ceramic filter membrane and preparation method thereof |
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| CN201610832860.0A CN106422813A (en) | 2016-09-20 | 2016-09-20 | Ceramic filter membrane and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107235860A (en) * | 2017-07-12 | 2017-10-10 | 安徽广信农化股份有限公司 | A kind of synthesis technique of the dichlorophenyl isocyanate of diuron intermediate 3,4 |
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| CN101712561A (en) * | 2009-11-06 | 2010-05-26 | 吴荣标 | Method for preparing SiC porous ceramic by splicing clay |
| CN102718494A (en) * | 2012-06-21 | 2012-10-10 | 海南大学 | Preparation method of composite silicon carbide ceramic filter membrane material |
| CN103771858A (en) * | 2014-01-07 | 2014-05-07 | 中原工学院 | Method for preparing porous silicon carbide ceramic employing activated carbon silicification method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107235860A (en) * | 2017-07-12 | 2017-10-10 | 安徽广信农化股份有限公司 | A kind of synthesis technique of the dichlorophenyl isocyanate of diuron intermediate 3,4 |
| CN107235860B (en) * | 2017-07-12 | 2019-06-21 | 安徽广信农化股份有限公司 | A kind of diuron intermediate 3, the synthesis technology of 4- dichlorophenyl isocyanate |
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