CN105439638B - A kind of preparation method of molecular sieve composite fibre section bar - Google Patents
A kind of preparation method of molecular sieve composite fibre section bar Download PDFInfo
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- CN105439638B CN105439638B CN201510779585.6A CN201510779585A CN105439638B CN 105439638 B CN105439638 B CN 105439638B CN 201510779585 A CN201510779585 A CN 201510779585A CN 105439638 B CN105439638 B CN 105439638B
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- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5007—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0006—Honeycomb structures
- C04B38/0009—Honeycomb structures characterised by features relating to the cell walls, e.g. wall thickness or distribution of pores in the walls
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
Abstract
The invention discloses a kind of preparation method of molecular sieve composite fibre section bar, belong to technical field of molecular sieve preparation.The molecular sieve composite fibre section bar is alveolate texture, the molecular sieve composite fibre section bar can be MFI type, BEA types or FAU types, the molecular sieve composite fibre section bar of each type is made up of several parallel channels, the height in each duct is 1 30mm, the width in each duct is 2 60mm, and the specific surface area of molecular sieve composite fibre section bar is 200 400m2/g.Material and heat transmission of the molecular sieve composite fibre section bar that the present invention is prepared due to abundant fiber gap and macroscopical pore passage structure, being advantageous to vapor, possesses the steric requirements of fabricated in situ molecular sieve；Converted inside fiber section bar with surface in situ synthesis of molecular sieve, the purposes for both having realized functional material, maintain original basic structure and intensity again.
Description
Technical field
The present invention relates to technical field of molecular sieve preparation, and in particular to a kind of preparation side of molecular sieve composite fibre section bar
Method.
Background technology
Molecular sieve is a kind of sorbing material with regular pore structure, according to the difference of its skeleton structure, can be divided into
The species such as MFI, BEA, FAU, in the presence of silicon source and silicon source, synthesized by hydrothermal method.Because sieve particle is small, typically
Exist with powder, therefore be not suitable for directly using in most occasions.Point of the purposes such as commercialized dehumidifying and catalysis
Son sieve, typically by being bonded into spheric granules or being extruded into stick or honeycomb, support strength and space are obtained, in favor of thing
Material with surface by simultaneously contacting, but the utilization ratio of molecular sieve and performance can decline.
Disclosed in patent 201310373892.5 and hollow molecules are converted into by hydrothermal synthesis method using aluminosilicate fiber
Fiber is sieved, powder molecular sieve is obtained macrostructure, while hollow-core construction has preferable diffusion and reactivity worth.In but
Space between empty structure and molecular sieve obviously prevents it, and from the intensity for keeping fibril, this processes to it and using unfavorable.
The content of the invention
It is an object of the invention to provide a kind of preparation method of molecular sieve composite fibre section bar, what this method was prepared
Material and heat of the molecular sieve composite fibre section bar due to abundant fiber gap and macroscopical pore passage structure, being advantageous to vapor
Amount transmission, possesses the steric requirements of fabricated in situ molecular sieve；With surface in situ synthesis of molecular sieve inside fiber section bar, both realized
The purposes conversion of functional material, maintains original basic structure and intensity again.
Its technical solution includes：
A kind of preparation method of molecular sieve composite fibre section bar, comprises the following steps successively：
A, composite fibre section bar is prepared, from least one of synthetic fibers or natural fiber and ceramic fibre, glass
The mixing of at least one of fiber or NACF carries out copy paper, is then squeezed into the paper with male and fomale(M＆F), gained male and fomale(M＆F)
Paper be bonded on flat paper and form lamina, by layered body by accumulating or being wound into section bar, obtain composite fibre section bar；
B, stair oxidation, secondary oxidation and steam treatment are carried out respectively to composite fibre section bar obtained by step a, by type
NACF is converted into synthetic fibers or/and natural fiber in material, wherein stair oxidation is to be in inertia and temperature
What 150-300 DEG C of condition was carried out, secondary oxidation is that the condition for being 700-900 DEG C in inertia and temperature is carried out；
C, inorganic bond is adhered to the composite fibre Surface of profile after processing, by molecular sieve uniform adhesion in composite fibre
At Surface of profile and gap, drying；
D, heart level above sets objective table in a kettle, and the molecular sieve composite fibre is placed on the objective table
Section bar, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, and closed reactor is simultaneously heated to 100-220 DEG C
Crystallization 12-24 hours, taken out after cooling；
E, then exchanged with ammonium nitrate solution, 4-10 hours are calcined at 450-700 DEG C, produce molecular sieve composite fibre type
Material；Obtained molecular sieve composite fibre section bar is alveolate texture, and it is made up of several parallel channels, each duct
Height be 1-30mm, the width in each duct is 2-60mm, and the specific surface area of the molecular sieve composite fibre section bar is 200-
400m2/g。
Above-mentioned technical proposal, the direct advantageous effects brought are：
By after the section bar of fiber process layered or the shape such as cellular, due to abundant fiber gap and macroscopic pores
Road structure, be advantageous to the material and heat transmission of vapor, the steric requirements for possessing fabricated in situ molecular sieve；In load molecular sieve
Before, stair oxidation (inert atmosphere, 150-300 DEG C), secondary oxidation (inert atmosphere, 700-900 are carried out to composite fibre section bar
DEG C) and steam treatment, can be by the synthetic fibers or natural fiber in composite fibre section bar, such as polyacrylonitrile, viscose rayon
Etc. being converted into NACF.
It is above-mentioned when firing stage needs retentive activity Carbon fibe in step e, it need to implement under an inert atmosphere.
Preferably, above-mentioned molecular sieve composite fibre section bar is MFI type, BEA types or FAU types.
Preferably, molecular sieve composite fibre section bar is MFI type, and crystallization temperature is 160-220 DEG C, sintering temperature 450-
650℃。
Preferably, molecular sieve composite fibre section bar is BEA types, and crystallization temperature is 130-180 DEG C, sintering temperature 450-
700℃。
Preferably, molecular sieve composite fibre section bar is FAU types, and crystallization temperature is 100-130 DEG C, sintering temperature 550-
700℃。
Above-mentioned inorganic bond is Ludox and Alumina gel, and molecular sieve selects MFI-type molecular sieve, the Si/ of MFI-type molecular sieve
Al mol ratio >=15:1.
Above-mentioned silica alumina ratio can obtain the fiber composite profile for the MFI-type molecular sieve for being loaded with high silica alumina ratio.
Above-mentioned inorganic bond is Ludox and Alumina gel, and molecular sieve selects BEA type molecular sieves, the Si/ of BEA type molecular sieves
Al mol ratio >=10:1.
Above-mentioned silica alumina ratio can obtain the fiber composite profile for the BEA type molecular sieves for being loaded with high silica alumina ratio.
Inorganic bond is Ludox and Alumina gel, and molecular sieve selects FAU type molecular sieves, and the Si/Al of FAU type molecular sieves rubs
You are than being 1~40:1.
Above-mentioned silica alumina ratio can obtain the fiber composite profile for the FAU type molecular sieves for being loaded with high silica alumina ratio.
Advantageous effects are caused by the present invention：
First, in terms of the selection of raw material, Ceramics fiber of the present invention, glass fibre, NACF, synthetic fibers
Or the one or more mixtures in natural fiber carry out copy papers, ceramic fibre is mainly characterized by with higher heat-resisting
Property, glass fibre are mainly characterized by that intensity is big, and NACF is mainly characterized by with suction-operated, synthetic fibers or day
Right fiber can increase the intensity of fiber section bar, have preferable hydrophily, increase interfibrous adhesion.Fiber formation process
The inorganic bonds such as the silicon or Alumina gel of middle introducing, and fiber can have as the silicon source and silicon source of synthesis of molecular sieve in itself
The material conditions of standby fabricated in situ molecular sieve.
Compared with patent 201310373892.5, distinctive points are the present invention：
The present invention is using fiber section bar as carrier, is mainly converted by silicon-aluminum sol compound on section bar by hydro-thermal reaction
For various types of molecular sieves, and patent 201310373892.5 is that fiber directly is converted into all kinds by hydro-thermal reaction
Molecular sieve；
The present invention compared with prior art, has further the advantage that：
(1) present invention use crystal seed induction with steam convert method it is simple, wide adaptation range, can prepare MFI,
BEA, FAU type molecular sieve, the method cost than preparing corresponding molecular sieve in aqueous are low；
(2) present invention is by the fiber section bar of siliceous oxygen element, is changed into molecular sieve fiber composite material, raw material sources are wide
It is general, and unbodied silicon or Alumina gel in preferential conversion section bar, the outward appearance and intensity of prototype material are maintained substantially；
(3) the inventive method can prepare size and the molecular sieve fiber composite material to come in every shape, such as stratiform or bulk
Structure, functional part can be used as, be used alone or assembling uses, additional other materials can also be continued as carrier, had
The advantages of throughput is big, contact area is big.
Embodiment
The present invention proposes a kind of preparation method of molecular sieve composite fibre section bar, in order that advantages of the present invention, technology
Scheme is clearer, clear and definite, and the present invention is elaborated with reference to specific embodiment.
The fiber that the present invention selects is ceramic fibre 0.1-80 parts, glass fibre 0.1-80 respectively in parts by weight
In one of which and synthetic fibers 0.1-10 parts, natural fiber 0.1-10 parts in part, NACF 0.1-80 parts wherein
It is a kind of；There can be following several combinations according to the species of fiber and parts by weight, regardless of combination, be both needed to natural fiber or conjunction
Into at least one of fiber：
Such as select two kinds of fibers：20 parts of ceramic fibre, 5 parts of synthetic fibers；Or 80 parts of ceramic fibre, 10 parts of synthetic fibers；
Or 10 parts of natural fiber, 40 parts of NACF；
According to the species and parts by weight of above-mentioned fiber, those skilled in the art can also be randomly divided into various combination, herein
It is no longer redundant later.
Above-mentioned multiple fiber carries out copy paper first, and the paper with male and fomale(M＆F) is squeezed into after copy paper, then with flat paper by having
Machine or inorganic bond are combined into lamina, and the lamina can pass through by accumulating or being wound into section bar, before load molecular sieve
Pre-oxidation (inert atmosphere, 150-300 DEG C), high-temperature oxydation (inert atmosphere, 700-900 DEG C) and steam treatment are crossed, can be incited somebody to action
Synthetic fibers or natural fiber in section bar, such as polyacrylonitrile, viscose rayon are converted into NACF.
Embodiment one
Embodiment 1：
The preparation method of MFI-type molecular sieve composite fibre section bar, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；MFI molecular sieves uniform adhesion is being stained with adhesive
At Surface of profile and gap, drying, obtain MFI molecular sieve composite fibre section bars, Si/Al mol ratio >=15 of MFI molecular sieves:1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, closed reactor and to be heated to 160 DEG C of crystallization 24 small
When, taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, be calcined at 650 DEG C 4 hours (when needing retentive activity Carbon fibe, need to be
Implement under inert atmosphere), obtain Hydrogen MFI-type molecular sieve composite fibre section bar.
Embodiment 2：
The preparation method of MFI-type molecular sieve composite fibre section bar, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；MFI molecular sieves uniform adhesion is being stained with adhesive
At Surface of profile and gap, drying, obtain MFI molecular sieve composite fibre section bars, Si/Al mol ratio >=15 of MFI molecular sieves:1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, closed reactor and to be heated to 220 DEG C of crystallization 24 small
When, taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, being calcined at 450 DEG C 10 hours (when needing retentive activity Carbon fibe, needs
Implement under an inert atmosphere), obtain Hydrogen MFI-type molecular sieve composite fibre section bar.
Embodiment 3：
The preparation method of MFI-type molecular sieve composite fibre section bar, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；MFI molecular sieves uniform adhesion is being stained with adhesive
At Surface of profile and gap, drying, obtain MFI molecular sieve composite fibre section bars, Si/Al mol ratio >=15 of MFI molecular sieves:1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, closed reactor and to be heated to 180 DEG C of crystallization 12 small
When, taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, be calcined at 550 DEG C 6 hours (when needing retentive activity Carbon fibe, need to be
Implement under inert atmosphere), obtain Hydrogen MFI-type molecular sieve composite fibre section bar.
The MFI-type molecular sieve composite fibre section bar that above-described embodiment 1-3 is prepared is made up of multiple parallel channels
Alveolate texture, honeycomb shape can be triangle, square, hexagon, corrugated, trapezoidal or other conventional shapes, duct
High 3mm, width 1.8mm, the BET surface area 200m of embodiment 12/ g, the BET surface area 220m of embodiment 22/ g, embodiment 3
BET surface area 240m2/g。
Embodiment two
Embodiment 4：
The preparation method of BEA type molecular sieve composite fibre section bars, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；BEA molecular sieves uniform adhesion is stained with bonding above-mentioned
At the Surface of profile of agent and gap, drying, obtain BEA molecular sieve composite fibre section bars, Si/Al mol ratio >=10 of BEA molecular sieves:
1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, closed reactor and to be heated to 130 DEG C of crystallization 24 small
When, taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, being calcined at 450 DEG C 10 hours (when needing retentive activity Carbon fibe, needs
Implement under an inert atmosphere), obtain Hydrogen BEA type molecular sieve composite fibre section bars.
Embodiment 5：
The preparation method of BEA type molecular sieve composite fibre section bars, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；BEA molecular sieves uniform adhesion is stained with bonding above-mentioned
At the Surface of profile of agent and gap, drying, obtain BEA molecular sieve composite fibre section bars, Si/Al mol ratio >=10 of BEA molecular sieves:
1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, closed reactor and to be heated to 180 DEG C of crystallization 12 small
When, taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, be calcined at 700 DEG C 4 hours (when needing retentive activity Carbon fibe, need to be
Implement under inert atmosphere), obtain Hydrogen BEA type molecular sieve composite fibre section bars.
Embodiment 6：
The preparation method of BEA type molecular sieve composite fibre section bars, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；BEA molecular sieves uniform adhesion is stained with bonding above-mentioned
At the Surface of profile of agent and gap, drying, obtain BEA molecular sieve composite fibre section bars, Si/Al mol ratio >=10 of BEA molecular sieves:
1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, closed reactor and to be heated to 160 DEG C of crystallization 18 small
When, taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, be calcined at 600 DEG C 8 hours (when needing retentive activity Carbon fibe, need to be
Implement under inert atmosphere), obtain Hydrogen BEA type molecular sieve composite fibre section bars.
The BEA type molecular sieve composite fibre section bars that above-described embodiment 4-6 is prepared are made up of multiple parallel channels
Alveolate texture, honeycomb shape can be triangle, square, hexagon, corrugated, trapezoidal or other conventional shapes, duct
High 3mm, width 1.8mm, the BET surface area 240m of embodiment 42/ g, the BET surface area 260m of embodiment 52/ g, embodiment 6
BET surface area 280m2/g。
Embodiment three
Embodiment 7：
The preparation method of FAU type molecular sieve composite fibre section bars, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；FAU molecular sieves uniform adhesion is stained with bonding above-mentioned
At the Surface of profile of agent and gap, drying, obtain FAU molecular sieve composite fibre section bars, the Si/Al mol ratios of FAU molecular sieves are 1:
1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, closed reactor and to be heated to 100 DEG C of crystallization 12 small
When, taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, be calcined at 700 DEG C 4 hours (when needing retentive activity Carbon fibe, need to be
Implement under inert atmosphere), obtain Hydrogen FAU type molecular sieve composite fibre section bars.
Embodiment 8：
The preparation method of FAU type molecular sieve composite fibre section bars, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；FAU molecular sieves uniform adhesion is stained with bonding above-mentioned
At the Surface of profile of agent and gap, drying, obtain FAU molecular sieve composite fibre section bars, the Si/Al mol ratios of FAU molecular sieves are 40:
1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, and closed reactor is simultaneously heated to 130 DEG C of crystallization 2 hours,
Taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, being calcined at 550 DEG C 12 hours (when needing retentive activity Carbon fibe, needs
Implement under an inert atmosphere), obtain Hydrogen FAU type molecular sieve composite fibre section bars.
Embodiment 9：
The preparation method of FAU type molecular sieve composite fibre section bars, specifically includes following steps：
Step 1, using inorganic bond such as Ludox or Alumina gel by impregnate, spray, elute the methods of uniform adhesion
Inside above-mentioned section bar and surface, the section bar of adhesive must be stained with；FAU molecular sieves uniform adhesion is stained with bonding above-mentioned
At the Surface of profile of agent and gap, drying, obtain FAU molecular sieve composite fibre section bars, the Si/Al mol ratios of FAU molecular sieves are 20:
1；
Step 2, in a kettle heart level above set objective table, and molecular sieve composite fibre type is placed on objective table
Material, is put into water in reactor, and the depth of water is no more than the 2/3 of objective table height, and closed reactor is simultaneously heated to 120 DEG C of crystallization 8 hours,
Taken out after cooling；
Step 3, then exchanged with ammonium nitrate solution, be calcined at 600 DEG C 8 hours (when needing retentive activity Carbon fibe, need to be
Implement under inert atmosphere), obtain Hydrogen FAU type molecular sieve composite fibre section bars.
The FAU type molecular sieve composite fibre section bars that above-described embodiment 7-9 is prepared are made up of multiple parallel channels
Alveolate texture, honeycomb shape can be triangle, square, hexagon, corrugated, trapezoidal or other conventional shapes, duct
High 3mm, width 1.8mm, the BET surface area 260m of embodiment 72/ g, the BET surface area 280m of embodiment 82/ g, embodiment 9
BET surface area 300m2/g。
It should be noted that any equivalent way that those skilled in the art are made under the teaching of this specification, or
Obvious variant all should be within the scope of the present invention.
Claims (8)
1. a kind of preparation method of molecular sieve composite fibre section bar, it is characterised in that comprise the following steps successively：
A, composite fibre section bar is prepared, from least one of synthetic fibers or natural fiber and ceramic fibre, glass fibre
Or the mixing of at least one of NACF carries out copy paper, is then squeezed into the paper with male and fomale(M＆F), the paper of gained male and fomale(M＆F)
It is bonded on flat paper and forms lamina, by layered body by accumulating or being wound into section bar, obtains composite fibre section bar；
B, stair oxidation, secondary oxidation and steam treatment are carried out respectively to composite fibre section bar obtained by step a, by section bar
Synthetic fibers or/and natural fiber in be converted into NACF, it in inertia and temperature is 150- that wherein stair oxidation, which is,
What 300 DEG C of condition was carried out, secondary oxidation is that the condition for being 700-900 DEG C in inertia and temperature is carried out；
C, inorganic bond is adhered to the composite fibre Surface of profile after processing, by molecular sieve uniform adhesion in composite fibre section bar
At surface and gap, drying；
D, heart level above sets objective table in a kettle, the placement step c products obtained therefroms on the objective table, in reactor
Water is put into, the depth of water is no more than the 2/3 of objective table height, and closed reactor is simultaneously heated to 100-220 DEG C of crystallization 12-24 hour, cold
But take out afterwards；
E, then exchanged with ammonium nitrate solution, 4-10 hours are calcined at 450-700 DEG C, produce molecular sieve composite fibre section bar；Institute
Obtained molecular sieve composite fibre section bar is alveolate texture, and it is made up of several parallel channels, the height in each duct
Spend for 1-30mm, the width in each duct is 2-60mm, and the specific surface area of the molecular sieve composite fibre section bar is 200-
400m2/g。
2. the preparation method of molecular sieve composite fibre section bar according to claim 1, it is characterised in that：The molecular sieve is answered
Condensating fiber section bar is MFI type, BEA types or FAU types.
3. the preparation method of molecular sieve composite fibre section bar according to claim 2, it is characterised in that：The molecular sieve is answered
Condensating fiber section bar is MFI type, and crystallization temperature is 160-220 DEG C, and sintering temperature is 450-650 DEG C.
4. the preparation method of molecular sieve composite fibre section bar according to claim 2, it is characterised in that：The molecular sieve is answered
Condensating fiber section bar is BEA types, and crystallization temperature is 130-180 DEG C, and sintering temperature is 450-700 DEG C.
5. the preparation method of molecular sieve composite fibre section bar according to claim 2, it is characterised in that：The molecular sieve is answered
Condensating fiber section bar is FAU types, and crystallization temperature is 100-130 DEG C, and sintering temperature is 550-700 DEG C.
6. the preparation method of molecular sieve composite fibre section bar according to claim 3, it is characterised in that：Inorganic bond is
Ludox and Alumina gel, molecular sieve select MFI-type molecular sieve, Si/Al mol ratio >=15 of the MFI-type molecular sieve:1.
7. the preparation method of molecular sieve composite fibre section bar according to claim 4, it is characterised in that：Inorganic bond is
Ludox and Alumina gel, molecular sieve select BEA type molecular sieves, Si/Al mol ratio >=10 of the BEA types molecular sieve:1.
8. the preparation method of molecular sieve composite fibre section bar according to claim 5, it is characterised in that：Inorganic bond is
Ludox and Alumina gel, molecular sieve select FAU type molecular sieves, and the Si/Al mol ratios of the FAU types molecular sieve are 1~40:1.
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| CN102580568A (en) * | 2012-03-13 | 2012-07-18 | 南京工业大学 | Method for preparing hollow fiber molecular sieve membranes in batches |
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| CN104841289A (en) * | 2015-04-17 | 2015-08-19 | 大连理工大学 | NaA type molecular sieve membrane synthesized on surface of organic hollow fiber, and production method thereof |
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| CN102225314A (en) * | 2011-04-19 | 2011-10-26 | 浙江大学 | Method for synthesizing molecular sieve membrane |
| CN102886200A (en) * | 2011-07-20 | 2013-01-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Modified molecular sieve-doped carbon fiber purification material and preparation method thereof |
| CN102580568A (en) * | 2012-03-13 | 2012-07-18 | 南京工业大学 | Method for preparing hollow fiber molecular sieve membranes in batches |
| CN102728399A (en) * | 2012-06-26 | 2012-10-17 | 华东师范大学 | Metal fiber/molecular sieve composite material and its preparation method and its application |
| CN103233396A (en) * | 2013-04-11 | 2013-08-07 | 王汉培 | Manufacturing method of high-performance core material for rotating wheel adsorption |
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