CN109485126A - A kind of inorganic ceramic membrane of filtering water - Google Patents
A kind of inorganic ceramic membrane of filtering water Download PDFInfo
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- CN109485126A CN109485126A CN201811354564.XA CN201811354564A CN109485126A CN 109485126 A CN109485126 A CN 109485126A CN 201811354564 A CN201811354564 A CN 201811354564A CN 109485126 A CN109485126 A CN 109485126A
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- powder
- outer layer
- filter membrane
- internal layer
- refined filtration
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- 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
- B01D67/0039—Inorganic membrane manufacture
-
- 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
- B01D71/024—Oxides
-
- 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
- B01D71/024—Oxides
- B01D71/025—Aluminium oxide
-
- 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
- B01D71/024—Oxides
- B01D71/027—Silicium oxide
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of inorganic ceramic membranes of filtering water, including filter membrane at the beginning of outer layer and internal layer refined filtration film, just filter membrane includes following constituent to the outer layer: titania powder 30-50%, lime powder 10-20%, sodium peroxide 8-15%, magnesium oxide powder 8-15%, SiO 2 powder 8-15%, inorganic glass fiber 8-15%, dispersing agent for fibre 3-5%, foaming agent 2-3%；The internal layer refined filtration film includes following constituent: alumina powder 40-60%, chromium oxide powder 20-30%, titania powder 5-15%, pH adjusting agent 2-3%, aluminium hydroxide 3-5%.Raw material of the present invention use environment-friendly materials and inorganic raw material, the prices of raw materials are cheap and readily available, preparation process is simple, process, operate, control and use it is simple and convenient, it is suitble to large-scale production and application, using the form for the duplicature that filter membrane at the beginning of outer layer and internal layer refined filtration film combine, the characteristics such as its mechanical strength, chemical durability and alkali resistant erosion are not only increased, and make water filtration effect more preferable by the porous membrane structure of ectonexine.
Description
Technical field
The present invention relates to inorganic ceramic technical field of membrane, espespecially a kind of inorganic ceramic membrane of filtering water.
Background technique
Inorganic ceramic membrane is a kind of inorganic or high molecular material with special Selective Separation function, it can be fluid point
Two parts being not communicated with are divided into, one such or several substances is enable to penetrate, and other materials are separated.It builds on
Inorganic ceramic membrane on inorganic materials science base has the advantages that incomparable some of polymer separation film: high temperature resistant, can
Realize sterilization system on line；Chemical stability is good, is resistant to microbial degradation.For organic solvent, etchant gas and microbial attack table
Existing good stability.High mechanical strength, it is high pressure resistant, there is good wear-resisting, flushing resistance；Pore-size distribution is narrow, separating property
Good, infiltration capacity is big, can cleaning and regeneration repeatedly, long service life.Ceramic membrane is also referred to as GT film, is with inorganic ceramic raw material through special work
The anisotropic membrane that skill is prepared, in a tubular form or multichannel shape.Ceramic membrane tube wall gathers micropore, under pressure, material liquid
It is flowed in membrane tube or on the outside of film, small-molecule substance (or liquid) penetrates film, macromolecular substances (or solid particle, liquid drop)
It is rejected by reach separation of solid and liquid, concentration and the purpose of purifying.Membrane separation technique efficient, energy-saving and environmental protection and molecule with it
The characteristics such as grade filtering, have been widely used in the fields such as medicine, water process, chemical industry, electronics, food processing, become this century point
From one of technology most important in science, it is acknowledged as the membrane technology of one of 21 century most great industrial technology, is a kind of emerging
Green industry science and technology.
With the improvement of living standards, people's health idea also gradually increases, for drinking water water quality requirement also more
Height, compared to existing water filtration mode, inorganic ceramic membrane obviously has a clear superiority in terms of water filtration.
Summary of the invention
The technical problem to be solved by the present invention is to existing water filtration mode, to be unable to satisfy people more next for drinking water
Higher requirement the shortcomings that in order to overcome the prior art, now provides a kind of inorganic ceramic membrane of filtering water.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
The present invention provides a kind of inorganic ceramic membrane of filtering water, including filter membrane at the beginning of outer layer and internal layer refined filtration film,
Just filter membrane includes following constituent to the outer layer: titania powder 30-50%, lime powder 10-20%,
Sodium peroxide 8-15%, magnesium oxide powder 8-15%, SiO 2 powder 8-15%, inorganic glass fiber 8-15%, fiber point
Powder 3-5%, foaming agent 2-3%；
The internal layer refined filtration film includes following constituent: alumina powder 40-60%, chromium oxide powder 20-30%, and two
Titanium dioxide powder 5-15%, pH adjusting agent 2-3%, aluminium hydroxide 3-5%.
As a preferred technical solution of the present invention,
Just filter membrane includes following constituent to the outer layer: titania powder 40%, lime powder 15%, peroxidating
Sodium 10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre 3%, foaming agent
2%；
The internal layer refined filtration film includes following constituent: alumina powder 55%, chromium oxide powder 25%, titanium dioxide
Powder 15%, pH adjusting agent 2%, aluminium hydroxide 3%.
As a preferred technical solution of the present invention, the foaming agent uses sodium metasilicate.
As a preferred technical solution of the present invention, the pH adjusting agent uses potassium hydroxide.
As a preferred technical solution of the present invention, just filter membrane thicknesses of layers is 60 μm to the outer layer, 0.5 μ of membrane aperture
m；Internal layer refined filtration film thicknesses of layers is 30 μm, 0.05 μm of membrane aperture.
The present invention also provides the preparation methods of above-mentioned inorganic ceramic membrane, including following operating procedure:
S1: following each components: titania powder 40%, lime powder are weighed respectively by following mass percent
15%, sodium peroxide 10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre
3%, foaming agent 2%, by titania powder, lime powder, sodium peroxide, magnesium oxide powder, SiO 2 powder, inorganic
Glass fibre is put into ultrasonic oscillator and is uniformly mixed, and appropriate distilled water is added, adds dispersing agent for fibre and foaming agent,
1h is mixed in idler wheel mill, selects molding die compression moulding as needed, outer layer just filter membrane is made in hot pressed sintering under high temperature and pressure；
S2: weighing following each components: alumina powder 55% by following mass percent respectively, chromium oxide powder 25%,
Titania powder 15%, pH adjusting agent 2%, aluminium hydroxide 3%；Alumina powder, chromium oxide powder, titania powder
Mixing pressure mill 1.5h, is added appropriate distilled water, adds pH adjusting agent and aluminium hydroxide in ball mill, selects as needed
Molding die compression moulding, internal layer refined filtration film is made in hot pressed sintering under high temperature and pressure；
S3: internal layer refined filtration film hot pressing at 700 DEG C obtained in the first filter membrane of outer layer obtained in S1) and S2) is compound, then
The hot pressed sintering in air atmosphere, it is dry after finished product cleaning.
The beneficial effects obtained by the present invention are as follows being: raw material of the present invention use environment-friendly materials and inorganic raw material, raw material valence
Lattice are cheap and readily available, and preparation process is simple, process, operate, control and use it is simple and convenient, be suitble to large-scale production and application, adopt
The form for the duplicature that filter membrane and internal layer refined filtration film at the beginning of outer layer combine, not only increases its mechanical strength, chemical durability
It the characteristics such as corrodes with alkali resistant, and makes water filtration effect more preferable by the porous membrane structure of ectonexine.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment
Embodiment 1: the present invention provides a kind of inorganic ceramic membrane of filtering water, including filter membrane at the beginning of outer layer and internal layer refined filtration
Film,
Just filter membrane includes following constituent to the outer layer: titania powder 30-50%, lime powder 10-20%,
Sodium peroxide 8-15%, magnesium oxide powder 8-15%, SiO 2 powder 8-15%, inorganic glass fiber 8-15%, fiber point
Powder 3-5%, foaming agent 2-3%；
The internal layer refined filtration film includes following constituent: alumina powder 40-60%, chromium oxide powder 20-30%, and two
Titanium dioxide powder 5-15%, pH adjusting agent 2-3%, aluminium hydroxide 3-5%.
As filter membrane at the beginning of a preferred technical solution of the present invention, including outer layer and internal layer refined filtration film,
Just filter membrane includes following constituent to the outer layer: titania powder 40%, lime powder 15%, peroxidating
Sodium 10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre 3%, foaming agent
2%；
The internal layer refined filtration film includes following constituent: alumina powder 55%, chromium oxide powder 25%, titanium dioxide
Powder 15%, pH adjusting agent 2%, aluminium hydroxide 3%.
Further, the foaming agent uses sodium metasilicate.
Further, the pH adjusting agent uses potassium hydroxide.
Further, just filter membrane thicknesses of layers is 60 μm, 0.5 μm of membrane aperture to the outer layer；Internal layer refined filtration film thicknesses of layers
It is 30 μm, 0.05 μm of membrane aperture.
The present invention also provides the preparation methods of above-mentioned inorganic ceramic membrane, including following operating procedure:
S1: following each components: titania powder 40%, lime powder are weighed respectively by following mass percent
15%, sodium peroxide 10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre
3%, foaming agent 2%, by titania powder, lime powder, sodium peroxide, magnesium oxide powder, SiO 2 powder, inorganic
Glass fibre is put into ultrasonic oscillator and is uniformly mixed, and appropriate distilled water is added, adds dispersing agent for fibre and foaming agent,
1h is mixed in idler wheel mill, selects molding die compression moulding as needed, outer layer just filter membrane is made in hot pressed sintering under high temperature and pressure；
S2: weighing following each components: alumina powder 55% by following mass percent respectively, chromium oxide powder 25%,
Titania powder 15%, pH adjusting agent 2%, aluminium hydroxide 3%；Alumina powder, chromium oxide powder, titania powder
Mixing pressure mill 1.5h, is added appropriate distilled water, adds pH adjusting agent and aluminium hydroxide in ball mill, selects as needed
Molding die compression moulding, internal layer refined filtration film is made in hot pressed sintering under high temperature and pressure；
S3: internal layer refined filtration film hot pressing at 700 DEG C obtained in the first filter membrane of outer layer obtained in S1) and S2) is compound, then
The hot pressed sintering in air atmosphere, it is dry after finished product cleaning.
Embodiment 2:
Embodiment 2 is identical as the formula of above-described embodiment, procedure of processing, the difference is that the proportion of the two is different.
S1: following each components: titania powder 40%, lime powder are weighed respectively by following mass percent
15%, sodium peroxide 10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre
3%, foaming agent 2%, by titania powder, lime powder, sodium peroxide, magnesium oxide powder, SiO 2 powder, inorganic
Glass fibre is put into ultrasonic oscillator and is uniformly mixed, and appropriate distilled water is added, adds dispersing agent for fibre and foaming agent,
1h is mixed in idler wheel mill, selects molding die compression moulding as needed, outer layer just filter membrane is made in hot pressed sintering under high temperature and pressure；
S2: weighing following each components: alumina powder 50% by following mass percent respectively, chromium oxide powder 30%,
Titania powder 15%, pH adjusting agent 2%, aluminium hydroxide 3%；Alumina powder, chromium oxide powder, titania powder
Mixing pressure mill 1.5h, is added appropriate distilled water, adds pH adjusting agent and aluminium hydroxide in ball mill, selects as needed
Molding die compression moulding, internal layer refined filtration film is made in hot pressed sintering under high temperature and pressure；
S3: internal layer refined filtration film hot pressing at 700 DEG C obtained in the first filter membrane of outer layer obtained in S1) and S2) is compound, then
The hot pressed sintering in air atmosphere, it is dry after finished product cleaning
Embodiment 3:
Embodiment 3 is identical as the formula of above-described embodiment, procedure of processing, the difference is that the proportion of the two is different.
S1: following each components: titania powder 45%, lime powder are weighed respectively by following mass percent
10%, sodium peroxide 10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre
3%, foaming agent 2%, by titania powder, lime powder, sodium peroxide, magnesium oxide powder, SiO 2 powder, inorganic
Glass fibre is put into ultrasonic oscillator and is uniformly mixed, and appropriate distilled water is added, adds dispersing agent for fibre and foaming agent,
1h is mixed in idler wheel mill, selects molding die compression moulding as needed, outer layer just filter membrane is made in hot pressed sintering under high temperature and pressure；
S2: weighing following each components: alumina powder 55% by following mass percent respectively, chromium oxide powder 25%,
Titania powder 15%, pH adjusting agent 2%, aluminium hydroxide 3%；Alumina powder, chromium oxide powder, titania powder
Mixing pressure mill 1.5h, is added appropriate distilled water, adds pH adjusting agent and aluminium hydroxide in ball mill, selects as needed
Molding die compression moulding, internal layer refined filtration film is made in hot pressed sintering under high temperature and pressure；
S3: internal layer refined filtration film hot pressing at 700 DEG C obtained in the first filter membrane of outer layer obtained in S1) and S2) is compound, then
The hot pressed sintering in air atmosphere, it is dry after finished product cleaning
By proportion described in embodiment 1-3 and inorganic ceramic membrane obtained by preparation method, after its rate of filtration, filtering
Water quality and filter membrane hardness etc. are tested, and are as a result evaluated by A, B, C, D, as shown in the table:
| Sample | The rate of filtration/s | Water quality after filtering | Filter membrane hardness |
| Embodiment 1 | A | A | C |
| Embodiment 2 | C | C | A |
| Embodiment 3 | B | A | A |
Titania powder 40%, lime powder 15%, alumina powder 55%, oxygen are used it can be seen from table
Change chromium powder end 25%, effect compares inorganic ceramic membrane obtained by this proportion in terms of water quality after the rate of filtration and filtering
It is good, using titania powder 40%, lime powder 15%, alumina powder 50%, chromium oxide powder 30%, this proportion
Obtained inorganic ceramic membrane effect in terms of filter membrane hardness is relatively good, using titania powder 45%, lime powder
10%, alumina powder 55%, chromium oxide powder 25%, the water quality after filtration of inorganic ceramic membrane obtained by this proportion
It is relatively good with effect in terms of filter membrane hardness.
Raw material of the present invention use environment-friendly materials and inorganic raw material, and the prices of raw materials are cheap and readily available, and preparation process is simple,
It processes, operate, controling and useing simple and convenient, suitable large-scale production and application, using filter membrane at the beginning of outer layer and internal layer refined filtration film phase
In conjunction with duplicature form, not only increase its mechanical strength, the characteristics such as chemical durability and alkali resistant corrode, and by interior
The porous membrane structure of outer layer makes water filtration effect more preferable.
Finally, it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
Present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (6)
1. a kind of inorganic ceramic membrane of filtering water, which is characterized in that including filter membrane at the beginning of outer layer and internal layer refined filtration film,
Just filter membrane includes following constituent to the outer layer: titania powder 30-50%, lime powder 10-20%, peroxide
Change sodium 8-15%, magnesium oxide powder 8-15%, SiO 2 powder 8-15%, inorganic glass fiber 8-15%, dispersing agent for fibre
3-5%, foaming agent 2-3%；
The internal layer refined filtration film includes following constituent: alumina powder 40-60%, chromium oxide powder 20-30%, titanium dioxide
Titanium powder 5-15%, pH adjusting agent 2-3%, aluminium hydroxide 3-5%.
2. a kind of inorganic ceramic membrane of filtering water according to claim 1, which is characterized in that
Just filter membrane includes following constituent to the outer layer: titania powder 40%, lime powder 15%, sodium peroxide
10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre 3%, foaming agent
2%；
The internal layer refined filtration film includes following constituent: alumina powder 55%, chromium oxide powder 25%, titania powder
15%, pH adjusting agent 2%, aluminium hydroxide 3%.
3. a kind of inorganic ceramic membrane of filtering water according to claim 1, which is characterized in that the foaming agent uses silicon
Sour sodium.
4. a kind of inorganic ceramic membrane of filtering water according to claim 1, which is characterized in that the pH adjusting agent is adopted
Use potassium hydroxide.
5. a kind of inorganic ceramic membrane of filtering water according to claim 1, which is characterized in that the first filter membrane film of the outer layer
Layer is with a thickness of 60 μm, 0.5 μm of membrane aperture；Internal layer refined filtration film thicknesses of layers is 30 μm, 0.05 μm of membrane aperture.
6. a kind of preparation method of the inorganic ceramic membrane of filtering water described in -5 according to claim 1, which is characterized in that including
Following operating procedure:
S1: following each components: titania powder 40%, lime powder 15%, mistake are weighed respectively by following mass percent
Sodium oxide molybdena 10%, magnesium oxide powder 10%, SiO 2 powder 10%, inorganic glass fiber 10%, dispersing agent for fibre 3%, hair
Infusion 2%, titania powder, lime powder, sodium peroxide, magnesium oxide powder, SiO 2 powder, unorganic glass is fine
Dimension is put into ultrasonic oscillator and is uniformly mixed, and appropriate distilled water is added, adds dispersing agent for fibre and foaming agent, grinds in idler wheel
Middle mixing 1h selects molding die compression moulding as needed, and outer layer just filter membrane is made in hot pressed sintering under high temperature and pressure；
S2: following each components: alumina powder 55%, chromium oxide powder 25%, dioxy are weighed respectively by following mass percent
Change titanium powder 15%, pH adjusting agent 2%, aluminium hydroxide 3%；Alumina powder, chromium oxide powder, titania powder are in ball
Mixing pressure mill 1.5h, is added appropriate distilled water, adds pH adjusting agent and aluminium hydroxide in grinding machine, as needed selection molding
Mold compression moulding, internal layer refined filtration film is made in hot pressed sintering under high temperature and pressure；
S3: internal layer refined filtration film hot pressing at 700 DEG C obtained in the first filter membrane of outer layer obtained in S1) and S2) is compound, then in sky
Hot pressed sintering in gas atmosphere, it is dry after finished product cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354564.XA CN109485126A (en) | 2018-11-14 | 2018-11-14 | A kind of inorganic ceramic membrane of filtering water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354564.XA CN109485126A (en) | 2018-11-14 | 2018-11-14 | A kind of inorganic ceramic membrane of filtering water |
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| Publication Number | Publication Date |
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| CN109485126A true CN109485126A (en) | 2019-03-19 |
Family
ID=65695841
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| CN201811354564.XA Withdrawn CN109485126A (en) | 2018-11-14 | 2018-11-14 | A kind of inorganic ceramic membrane of filtering water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745934A (en) * | 2019-10-22 | 2020-02-04 | 庆泓技术(上海)有限公司 | Modified high-activity inorganic fiber composite material and preparation and regeneration method thereof |
| CN114452834A (en) * | 2022-01-18 | 2022-05-10 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane |
| CN114452830A (en) * | 2022-01-18 | 2022-05-10 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane and one-step forming method thereof |
-
2018
- 2018-11-14 CN CN201811354564.XA patent/CN109485126A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745934A (en) * | 2019-10-22 | 2020-02-04 | 庆泓技术(上海)有限公司 | Modified high-activity inorganic fiber composite material and preparation and regeneration method thereof |
| CN114452834A (en) * | 2022-01-18 | 2022-05-10 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane |
| CN114452830A (en) * | 2022-01-18 | 2022-05-10 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane and one-step forming method thereof |
| CN114452830B (en) * | 2022-01-18 | 2023-11-03 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane and one-step forming method thereof |
| CN114452834B (en) * | 2022-01-18 | 2023-11-03 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane |
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Application publication date: 20190319 |