CN107824056A - A kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane - Google Patents
A kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane Download PDFInfo
- Publication number
- CN107824056A CN107824056A CN201711164128.1A CN201711164128A CN107824056A CN 107824056 A CN107824056 A CN 107824056A CN 201711164128 A CN201711164128 A CN 201711164128A CN 107824056 A CN107824056 A CN 107824056A
- Authority
- CN
- China
- Prior art keywords
- waste
- reverse osmosis
- aromatic polyamide
- osmosis membrane
- polyamide reverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 74
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 70
- 239000002699 waste material Substances 0.000 title claims abstract description 68
- 239000004760 aramid Substances 0.000 title claims abstract description 61
- 229920003235 aromatic polyamide Polymers 0.000 title claims abstract description 61
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 33
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 33
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000010439 graphite Substances 0.000 claims abstract description 21
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 21
- 239000011148 porous material Substances 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 4
- 229920000548 poly(silane) polymer Polymers 0.000 claims description 4
- 229920001225 polyester resin Polymers 0.000 claims description 4
- 239000004645 polyester resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000003763 carbonization Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000002910 solid waste Substances 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 239000000986 disperse dye Substances 0.000 description 5
- 235000013980 iron oxide Nutrition 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- B01D71/021—Carbon
-
- 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
- B01D67/0067—Inorganic membrane manufacture by carbonisation or pyrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/24—Mechanical properties, e.g. strength
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane, it is characterized in that using cheap waste and old aromatic polyamide reverse osmosis membrane as raw material, it is cleaned by ultrasonic, dry in the shade, preservation flattens between being placed in graphite cake, the waste and old aromatic polyamide reverse osmosis membrane close adhesion of two panels is made using adhesive and pore size control agent composition, carbonized, by the addition and carbonization condition that control adhesive and pore size control agent, preparation has different average pore diameters and pore-size distribution, pore structure is flourishing, the good carbon molecular sieve membrance of separating property.The present invention solves the problems such as carbon molecular sieve membrance prepares higher cost, complex process, organic solvent pollution, provide a kind of low cost, simple production process, be easy to industrialization, the preparation method of free of contamination carbon molecular sieve membrance, available for the carbon molecular sieve membrance for preparing different separation requirements, while also solves the solid waste pollution problem of waste and old aromatic polyamide reverse osmosis membrane.
Description
Technical field：
The present invention relates to a kind of preparation method of carbon molecular sieve membrance, more particularly to a kind of waste and old aromatic polyamide reverse osmosis membrane
The method for preparing carbon molecular sieve membrance, belongs to new material technology field.
Background technology：
In recent years, osmosis filtration technology because its have normal temperature, without phase transformation, energy consumption is low, floor space is small, non-environmental-pollution, suitable
With water quality it is wide the advantages that, since the advent of the world just enjoys industry to favor, and quick development has been obtained, particularly in recent years in water resource
Famine, water pollution, environmental pollution are serious, sewage disposal, purification of water quality etc. there is an urgent need to and government policy support situation
Under, reverse osmosis technology has obtained high speed development, is widely used in boiler feedwater, industrial pure water, desalinization, municipal water supply
With sewage treatment area, also obtained in multiple industrial trades such as oil, electric power, metallurgy, chemical industry, electronics, pharmacy, food fully
Development, turns into important energy-efficient Engineering operation unit, realizes the important component of the strategy of sustainable development.
The reverse-osmosis membrane element that the whole world produces every year has several hundred million, and the Chinese reverse osmosis membrane market demand is wide, rough estimates, disappears
The amount of receiving accounts for the whole world 10%, and is rising year by year, according to the insiders analysis prediction, and China's film market demand will be with annual 20% or so
Speed increase.But reverse osmosis membrane, in separation process, easily contaminated or mechanical damage, causes its clearance and aquifer yield
Significantly decline, lead to not efficiency of bringing into normal play, its service life is usually 2-3 or so, belongs to easily-consumed products.Therefore,
The country there are about millions of membrane components and gone out of use because of hydraulic performance decline every year, and going from strength to strength with counter-infiltration market, this
Data are constantly being refreshed.These discarded reverse osmosis membranes are because its material can hardly be degraded under field conditions (factors), if place
It is improper to put, and not only pollutes environment and wastes resource.How to dispose the waste and old reverse osmosis membrane of this substantial amounts turns into industry
A great problem.
At present, there are two kinds for discarding the common processing mode of reverse osmosis membrane, first, as solid waste refuse disposal, this side
Method not only increases environmental pressure, adds offal treatment cost, while waste resource；Second, fraction is made profits again
With also having many unit or individuals for receiving and selling second-hand film on the market at present, it is notable that regeneration membrane industry often goes out
New, shoddy dirty pool now is rushed with old, and the reverse osmosis membrane service life after regeneration is short, must finally be used as solid
Useless refuse disposal, the shortcomings that both processing methods are all present clearly.Waste and old aromatic polyamide reverse osmosis membrane, due to residual
Charcoal amount is high, is the excellent presoma for preparing carbon molecular sieve, realizes the resource reutilization system of waste and old aromatic polyamide reverse osmosis membrane
Standby carbon molecular sieve, not only reduces the quantity of waste and old reverse osmosis membrane, reduces the processing cost of waste and old reverse osmosis membrane, be that one kind has
The processing mode of effect, while policy requirements of the country on changing rejected material to useful resource are also complied with, therefore, discard the outlet of reverse osmosis membrane
Key is in resource reutilization.
At present, the production of carbon molecular sieve membrance mostly prepares precursor film using solvent method, and this method is required for the solvent of costliness
Raw material is done, polymeric membrane is prepared come evaporation solvent by pyroprocess, this method all right and wrong in terms of resource or the energy
Often waste.Inventor is prepared for receiving the carbon molecular sieve of microchannel using waste and old aromatic polyamide reverse osmosis membrane first
Film.
The content of the invention：
A kind of low cost, simple production process are provided, are easy to it is an object of the invention to overcome the shortcomings of above-mentioned prior art
The industrialized method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane, its carbon molecular sieve membrance prepared machinery
Intensity is high, pore structure is flourishing, separating property is good.
The purpose of the present invention can be reached by following measure：
(1) cleaning and preservation of waste and old aromatic polyamide reverse osmosis membrane：By waste and old aromatic polyamide reverse osmosis membrane using super
Method for acoustic cleans, and washes away impurity such as incrustation scale, microorganism etc. of its surface adhesion, then that washed waste and old aromatic polyamide is anti-
Permeable membrane dries in the shade at normal temperatures, is placed in preserving at least 24 hours between two pieces of graphite cakes, flattens.
(2) pore size control agent is put into blender with adhesive under normal temperature to be well mixed, adhesive then requires stronger
Cohesive force and a certain degree of plasticity, the preferably macromolecule such as epoxide-resin glue, polyester resin glue, polysilane base resin glue
For polymer as adhesive, the addition of adhesive is preferably the 85%~99% of mixture gross mass, and pore size control agent is preferably
Zeolite, nano silicon, nano titanium oxide, one or more kinds of mixtures of magnetic iron oxide, by adhesive and
The mixture uniform ground of pore size control agent is coated in from a piece of waste and old aromatic polyamide reverse osmosis membrane taken out between graphite cake
Surface, it is viscous in the above from another waste and old aromatic polyamide reverse osmosis membrane is taken out between graphite cake；Again by two panels bonding
Waste and old aromatic polyamide reverse osmosis membrane is put into seamless molding machine, and control briquetting pressure makes between 0.5~1.0 Mpa
The waste and old aromatic polyamide reverse osmosis membrane of two panels holds tightly together, and it is small to allow it to dry 10 at 60 DEG C in vacuum drying chamber
When.
（3）Bonding, dried waste and old aromatic polyamide reverse osmosis membrane are put into retort, in inert gas shielding
Under charing process is carried out with certain heating rate after just prepare required carbon molecular sieve membrance.Preferably, wherein inert gas
From the one of which of nitrogen, argon gas, heating rate general control in 1~5 DEG C/min, charing final temperature is ordinarily selected to 400~
900 DEG C, and 60~240min of constant temperature at this temperature.
The present invention can produce following good effect compared with the prior art：Applicant is by largely investigating and experiment is ground
Study carefully, the carbon molecular sieve membrance with high value is prepared using waste and old aromatic polyamide reverse osmosis membrane, it has the following advantages that：
(1) carbon molecular sieve membrance that waste and old aromatic polyamide reverse osmosis membrane prepared for persursor material not only production cost is used
It is low, waste and old aromatic polyamide reverse osmosis membrane can be effectively utilized, but also there is higher porosity and flux, pore structure is equal
Even, high mechanical strength.
(2) average pore size of carbon molecular sieve membrance and pore-size distribution are easily controllable.The present invention by change pore size control agent and
Species, addition and the carbonization condition of adhesive can prepare the carbon molecular sieve membrance for different separation requirements.
(3) the carbon molecular sieve membrane porosity prepared is high, and mechanical strength is big, and the smooth zero defect in surface.
Embodiment：
The embodiment of the present invention is elaborated below：
Embodiment 1：
The waste and old aromatic polyamide reverse osmosis membrane of two panels is cleaned by ultrasonic, the impurity of its surface adhesion is washed away, dries in the shade at normal temperatures,
It is positioned between two pieces of graphite cakes and preserves 48 hours, flattens.Weigh 99g polysilane resins respectively and 1g MCM41 zeolites be put into it is mixed
It is well mixed in glassware, by being coated in from being taken out between graphite cake for the mixture uniform ground of polysilane resins and MCM41 zeolites
The surface of a piece of waste and old aromatic polyamide reverse osmosis membrane, from taking out another waste and old aromatic polyamide counter-infiltration between graphite cake
Film is viscous in the above；The waste and old aromatic polyamide reverse osmosis membrane that two panels bonds is put into seamless molding machine again, controlled into
Type pressure makes the waste and old aromatic polyamide reverse osmosis membrane of two panels hold tightly together, and allow it being dried in vacuo in 0.8 MPa
After being dried 10 hours at 60 DEG C in case, it is put into retort, under argon gas protection, 400 DEG C is risen to 1 DEG C/min heating rate
And constant temperature 240min, treat that it is cooled to less than 50 DEG C and can taken out.By test, the average pore size of carbon molecular sieve membrance is 2.0-
3.0nm, porosity 72%.It is 86% to the rejection of disperse dyes under 0.1-0.5Mpa at 20 DEG C.
Embodiment 2：
The waste and old aromatic polyamide reverse osmosis membrane of two panels is cleaned by ultrasonic, the impurity of its surface adhesion is washed away, dries in the shade at normal temperatures,
It is positioned between two pieces of graphite cakes and preserves 48 hours, flattens.90 g epoxide-resin glues and 10 g nano silicons are weighed respectively
It is put into blender and is well mixed, by is coated in from graphite cake for the mixture uniform ground of epoxide-resin glue and nano silicon
Between the surface of a piece of waste and old aromatic polyamide reverse osmosis membrane taken out, from taking out another waste and old aromatic series polyamides between graphite cake
Amine reverse osmosis membrane is viscous in the above；The waste and old aromatic polyamide reverse osmosis membrane that two panels bonds is put into seamless molding machine again
Interior, control briquetting pressure makes the waste and old aromatic polyamide reverse osmosis membrane of two panels hold tightly together in 0.5MPa, and allow its
Dry 10 hours, be put into retort at 60 DEG C in vacuum drying chamber, under argon gas protection, with 2 DEG C/min heating rate liter
To 700 DEG C and the min of constant temperature 120, treat that it is cooled to less than 50 DEG C and can taken out.By test, carbon molecular sieve membrance is averaged
Aperture is 1.0-3.0 nm, porosity 78%.Rejection to disperse dyes under 20 DEG C, 0.1-0.5 Mpa is 90%.
Embodiment 3：
The waste and old aromatic polyamide reverse osmosis membrane of two panels is cleaned by ultrasonic, the impurity of its surface adhesion is washed away, dries in the shade at normal temperatures,
It is positioned between two pieces of graphite cakes and preserves 24 hours, flattens.85g polyester resin glue and 5g ZSM5 zeolites, 5g nanometers are weighed respectively
Titanium dioxide, 5g magnetic iron oxides are put into blender and are well mixed, by polyester resin glue and ZSM5 zeolites and nanometer titanium dioxide
The mixture uniform ground of titanium and magnetic iron oxide is coated in from a piece of waste and old aromatic polyamide reverse osmosis taken out between graphite cake
The surface of permeable membrane, it is viscous in the above from another waste and old aromatic polyamide reverse osmosis membrane is taken out between graphite cake；Two panels is glued again
The waste and old aromatic polyamide reverse osmosis membrane closed is put into seamless molding machine, and control briquetting pressure makes two panels waste and old in 1MPa
Aromatic polyamide reverse osmosis membrane holds tightly together, and allows it to be dried 10 hours at 60 DEG C in vacuum drying chamber, is put into
In retort, under nitrogen protection, 900 DEG C and constant temperature 60min are risen to 5 DEG C/min heating rate, treats that it is cooled to 50 DEG C
It can take out below.By test, the average pore size of carbon molecular sieve membrance is 0.5-2.0nm, porosity 85%.At 20 DEG C,
It is 95% to the rejection of disperse dyes under 0.1-0.5Mpa.
Embodiment 4：
The waste and old aromatic polyamide reverse osmosis membrane of two panels is cleaned by ultrasonic, the impurity of its surface adhesion is washed away, dries in the shade at normal temperatures,
It is positioned between two pieces of graphite cakes and preserves 48 hours, flattens.92 g epoxide-resin glues are weighed respectively and 8 g nano titanium oxides are put
Enter in blender and be well mixed, by being coated in between graphite cake for the mixture uniform ground of epoxide-resin glue and nano titanium oxide
The surface of a piece of waste and old aromatic polyamide reverse osmosis membrane taken out, from taking out another waste and old aromatic polyamide between graphite cake
Reverse osmosis membrane is viscous in the above；The waste and old aromatic polyamide reverse osmosis membrane that two panels bonds is put into seamless molding machine again,
Briquetting pressure is controlled the waste and old aromatic polyamide reverse osmosis membrane of two panels is held tightly together, and allow it true in 0.6MPa
Dry 10 hours, be put into retort at 60 DEG C in empty drying box, under argon gas protection, risen to 3 DEG C/min heating rate
800 DEG C and the min of constant temperature 120, treat that it is cooled to less than 50 DEG C and can taken out.By test, the average hole of carbon molecular sieve membrance
Footpath is 2.0-4.0 nm, porosity 84%.Rejection to disperse dyes under 20 DEG C, 0.1-0.5 Mpa is 85%.
Embodiment 5：
The waste and old aromatic polyamide reverse osmosis membrane of two panels is cleaned by ultrasonic, the impurity of its surface adhesion is washed away, dries in the shade at normal temperatures,
It is positioned between two pieces of graphite cakes and preserves 36 hours, flattens.95 g epoxide-resin glues are weighed respectively and 5 g magnetic iron oxides are put into
It is well mixed in blender, being coated in between graphite cake for mixture uniform ground of epoxide-resin glue and magnetic iron oxide is taken out
A piece of waste and old aromatic polyamide reverse osmosis membrane surface, from taking out another waste and old aromatic polyamide reverse osmosis between graphite cake
Permeable membrane is viscous in the above；The waste and old aromatic polyamide reverse osmosis membrane that two panels bonds is put into seamless molding machine again, controlled
Briquetting pressure makes the waste and old aromatic polyamide reverse osmosis membrane of two panels hold tightly together, and allow it to be done in vacuum in 0.9MPa
Dry 10 hours, be put into retort at 60 DEG C in dry case, under argon gas protection, 850 are risen to 4 DEG C/min heating rate
DEG C and the min of constant temperature 90, treat that it is cooled to less than 50 DEG C and can taken out.By test, the average pore size of carbon molecular sieve membrance is
3.0-4.0 nm, porosity 88%.Rejection to disperse dyes under 20 DEG C, 0.1-0.5 Mpa is 87%.
Embodiment above is only that the preferred embodiment of the present invention is described, and other preferred embodiments are herein
Do not tire out one by one and state, and not the scope of the present invention is defined, on the premise of design spirit of the present invention is not departed from, this area
The various modifications and improvement that ordinary skill technical staff makes to technical scheme, the right that all should fall within the present invention will
In the protection domain for asking book determination.
Claims (6)
- A kind of 1. method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane, it is characterised in that it includes as follows Step：(1) first waste and old aromatic polyamide reverse osmosis membrane is cleaned by ultrasonic, washes away the impurity of its surface adhesion, then will It dries in the shade at normal temperatures, is placed in preserving at least 24 hours between two pieces of graphite cakes, flattens；(2) adhesive and pore size control agent are positioned in blender under normal temperature, make it well mixed；(3) from a piece of waste and old aromatic polyamide reverse osmosis membrane is taken out between graphite cake, by adhesive and the mixing of pore size control agent The surface for being coated in waste and old aromatic polyamide reverse osmosis membrane of thing uniform ground, take another waste and old aromatic polyamide counter-infiltration Film is viscous in the above；The waste and old aromatic polyamide reverse osmosis membrane that two panels bonds is put into seamless molding machine again, controlled into Type pressure makes the waste and old aromatic polyamide reverse osmosis membrane of two panels hold tightly together, and allow it between 0.5~1.0 Mpa Dried 10 hours at 60 DEG C in vacuum drying chamber；(4) bonding, dried waste and old aromatic polyamide reverse osmosis membrane are put into retort, under inert gas shielding Heating charing obtains carbon molecular sieve membrance.
- 2. a kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane according to claim 1, It is characterized in that described waste and old aromatic polyamide reverse osmosis membrane is the waste and old aromatic polyamide reverse osmosis membrane of water purifier.
- 3. a kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane according to claim 1, It is characterized in that the addition of described adhesive is the 85%~99% of the mixture gross mass of adhesive and pore size control agent.
- A kind of 4. side that carbon molecular sieve membrance is prepared with waste and old aromatic polyamide reverse osmosis membrane according to claim 1 or 3 Method, it is characterised in that described adhesive is one kind in epoxide-resin glue, polyester resin glue, polysilane base resin glue.
- A kind of 5. side that carbon molecular sieve membrance is prepared with waste and old aromatic polyamide reverse osmosis membrane according to claim 1 or 3 Method, it is characterised in that described pore size control agent is zeolite, nano silicon, nano titanium oxide, the one of magnetic iron oxide Kind or more than one mixture.
- 6. a kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane according to claim 1, It is characterized in that it is characterized in that being carbonized in described step (4) under inert atmosphere, inert gas is nitrogen or argon gas, and heating is fast Rate is 1~5 DEG C/min, and charing final temperature is 400~900 DEG C, and the min of constant temperature 60~240 at this temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164128.1A CN107824056A (en) | 2017-11-21 | 2017-11-21 | A kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164128.1A CN107824056A (en) | 2017-11-21 | 2017-11-21 | A kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107824056A true CN107824056A (en) | 2018-03-23 |
Family
ID=61652931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711164128.1A Pending CN107824056A (en) | 2017-11-21 | 2017-11-21 | A kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107824056A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0691882A1 (en) * | 1993-03-30 | 1996-01-17 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Composite carbon fluid separation membranes |
| US20050235825A1 (en) * | 2004-02-26 | 2005-10-27 | Tin Pei S | Method for making carbon membranes for fluid separation |
| CN1823007A (en) * | 2003-05-16 | 2006-08-23 | 布卢薄膜有限责任公司 | Method for producing a porous, carbon-based material |
| CN1829667A (en) * | 2003-07-31 | 2006-09-06 | 布卢薄膜有限责任公司 | Method for the production of porous carbon-based molded bodies, and use thereof as cell culture carrier systems and culture systems |
| CN1843597A (en) * | 2006-04-07 | 2006-10-11 | 陈明波 | A novel metal filtration film and preparation method thereof |
| US20070017861A1 (en) * | 2005-07-19 | 2007-01-25 | The Penn State Research Foundation | Carbon nanocomposite membranes and methods for their fabrication |
| CN101277754A (en) * | 2005-08-05 | 2008-10-01 | Ntnu技术转化公司 | Carbon membranes |
| EP1626816B1 (en) * | 2003-05-16 | 2009-09-09 | Cinvention Ag | Method for coating substrates with a carbon-based material |
| CN101687149A (en) * | 2007-06-27 | 2010-03-31 | 日本碍子株式会社 | Separation membrane complex, and method for production of separation membrane complex |
| WO2012041998A1 (en) * | 2010-10-01 | 2012-04-05 | Basf Se | Method for producing carbon membranes |
| CN102527259A (en) * | 2012-02-10 | 2012-07-04 | 南京工业大学 | Composite carbon molecular sieve membrane and preparation method and application thereof |
| CN102824857A (en) * | 2011-06-14 | 2012-12-19 | 北京航空航天大学 | Preparation method of gas separation carbon membrane |
| CN103721577A (en) * | 2013-12-17 | 2014-04-16 | 杭州创享环境技术有限公司 | Multichannel symmetrical structure pure silicon carbide film and preparation method thereof |
| CN104001430A (en) * | 2014-06-12 | 2014-08-27 | 鲁东大学 | Technique for manufacturing metallic aluminum-carbon composite nanofiltration membranes by adopting waste light reflecting membranes |
| CN106457201A (en) * | 2014-03-11 | 2017-02-22 | 乌第有限合伙公司 | Porous carbon films |
-
2017
- 2017-11-21 CN CN201711164128.1A patent/CN107824056A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0691882A1 (en) * | 1993-03-30 | 1996-01-17 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Composite carbon fluid separation membranes |
| CN1823007A (en) * | 2003-05-16 | 2006-08-23 | 布卢薄膜有限责任公司 | Method for producing a porous, carbon-based material |
| EP1626816B1 (en) * | 2003-05-16 | 2009-09-09 | Cinvention Ag | Method for coating substrates with a carbon-based material |
| CN1829667A (en) * | 2003-07-31 | 2006-09-06 | 布卢薄膜有限责任公司 | Method for the production of porous carbon-based molded bodies, and use thereof as cell culture carrier systems and culture systems |
| US20050235825A1 (en) * | 2004-02-26 | 2005-10-27 | Tin Pei S | Method for making carbon membranes for fluid separation |
| US20070017861A1 (en) * | 2005-07-19 | 2007-01-25 | The Penn State Research Foundation | Carbon nanocomposite membranes and methods for their fabrication |
| CN101277754A (en) * | 2005-08-05 | 2008-10-01 | Ntnu技术转化公司 | Carbon membranes |
| CN1843597A (en) * | 2006-04-07 | 2006-10-11 | 陈明波 | A novel metal filtration film and preparation method thereof |
| CN101687149A (en) * | 2007-06-27 | 2010-03-31 | 日本碍子株式会社 | Separation membrane complex, and method for production of separation membrane complex |
| WO2012041998A1 (en) * | 2010-10-01 | 2012-04-05 | Basf Se | Method for producing carbon membranes |
| CN102824857A (en) * | 2011-06-14 | 2012-12-19 | 北京航空航天大学 | Preparation method of gas separation carbon membrane |
| CN102527259A (en) * | 2012-02-10 | 2012-07-04 | 南京工业大学 | Composite carbon molecular sieve membrane and preparation method and application thereof |
| CN103721577A (en) * | 2013-12-17 | 2014-04-16 | 杭州创享环境技术有限公司 | Multichannel symmetrical structure pure silicon carbide film and preparation method thereof |
| CN106457201A (en) * | 2014-03-11 | 2017-02-22 | 乌第有限合伙公司 | Porous carbon films |
| CN104001430A (en) * | 2014-06-12 | 2014-08-27 | 鲁东大学 | Technique for manufacturing metallic aluminum-carbon composite nanofiltration membranes by adopting waste light reflecting membranes |
Non-Patent Citations (1)
| Title |
|---|
| YIIRERN SUHNG, ET AL.: "The study of the graphitization behavior for polyimide and polyamide films", 《SYNTHETIC METALS》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Formation of dynamic membrane in an anaerobic membrane bioreactor for municipal wastewater treatment | |
| Zhang et al. | Membrane fouling in an anaerobic dynamic membrane bioreactor (AnDMBR) for municipal wastewater treatment: characteristics of membrane foulants and bulk sludge | |
| CN102583703B (en) | Magnetic microorganism carrier prepared from biomass waste and application thereof | |
| Aslam et al. | Analysis of membrane fouling with porous membrane filters by microbial suspensions for autotrophic nitrogen transformations | |
| CN108554387A (en) | A kind of beta cyclo dextrin polymer and preparation and the method for handling cationic dye wastewater using it | |
| Xiong et al. | Dye adsorption on zinc oxide nanoparticulates atomic‐layer‐deposited on polytetrafluoroethylene membranes | |
| Liu et al. | The antifouling performance of an ultrafiltration membrane with pre-deposited carbon nanofiber layers for water treatment | |
| CN110465211B (en) | A polyphenol-functionalized composite membrane with a "sandwich" sandwich structure separation layer and a preparation method thereof | |
| Zhou et al. | Structural characteristics of cake layer in membrane bioreactor with chromate exposure | |
| Zhao et al. | Removal of phenol and phosphoric acid from wastewater by microfiltration carbon membranes | |
| CN110743391A (en) | Preparation method of functional polyvinylidene fluoride membrane | |
| CN107824056A (en) | A kind of method for preparing carbon molecular sieve membrance with waste and old aromatic polyamide reverse osmosis membrane | |
| Azizi Namaghi et al. | Performance enhancement of thin‐film composite membranes in water desalination process by wood sawdust | |
| Mansor et al. | The role of membrane filtration in wastewater treatment | |
| CN113877427A (en) | Preparation method of antibacterial and anti-fouling regenerated cellulose composite ultrafiltration membrane, composite ultrafiltration membrane and application | |
| Ciobanu et al. | Use of SAPO-5 zeolite–filled polyurethane membranes in wastewater treatment | |
| CN111389350A (en) | Preparation method of hydrothermal carbon adsorbent for removing heavy metal cadmium in water | |
| CN109592728B (en) | Nano silver particle/wood composite water treatment material | |
| Thi Sinh et al. | Modified graphene oxide-based adsorbents toward hybrid membranes for organic dye removal application | |
| CN111379074A (en) | Preparation method of cellulose nanofiber composite membrane for treating printing and dyeing wastewater | |
| Sui et al. | Mixed dimensional assembly of biodegradable and antifouling wood-based covalent organic framework composite membranes for rapid and efficient dye/salt separation | |
| CN109160663A (en) | A kind of dye industry waste water from dyestuff sub-prime with high salt recycles technique and device | |
| Zhang et al. | Mitigating salt accumulation in osmotic membrane bioreactors using ion-exchange resins | |
| CN1132668C (en) | Low-separation extreme-hydrophilic mixing ultrafilter membrane and its preparing process | |
| CN118416702B (en) | Preparation method of negatively charged flat plate microfiltration membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180323 |