KR101175986B1 - Inorganic hollow fiber bundle and method for fabricating the same - Google Patents

Abstract

The present invention relates to an inorganic hollow fiber bundle (bundle) and a method for manufacturing the same, the step of making a plurality of inorganic hollow fiber bundles of inorganic hollow fiber bundles of inorganic hollow fiber using a fixed ring or fixture, Sealing both ends of the inorganic hollow fiber bundles with a polymer adhesive, coating an inorganic binder on the shaped and sealed inorganic hollow fiber surface, and performing a heat treatment process to remove the polymer adhesive, By providing a step for the inorganic hollow yarns to be bonded to each other, the invention relates to an easy to handle in the manufacture of the module and the presence of voids between the hollow fiber bundles to facilitate the material permeation.

Description

Inorganic hollow fiber bundle and its manufacturing method {INORGANIC HOLLOW FIBER BUNDLE AND METHOD FOR FABRICATING THE SAME}

The present invention relates to an inorganic hollow fiber bundle and a method for manufacturing the same, and by bundling a plurality of inorganic hollow fibers into an inorganic binder using an inorganic binder, an ease of handling and a flow path recognized as industrial application limitations are provided. It relates to a technology that can be secured.

Recently, applications of membranes and membrane separation processes using the same have been actively conducted in various fields such as energy, environment, chemistry, medicine, and life science. As is well known, microfiltration membranes have pores ranging in size from hundreds of nanometers to tens of micrometers, so they are applied to various filtration processes including water and sewage treatment, water production, food and medical industry, etc. As this increases, the frequency of their use is gradually increasing.

For this purpose, desirable microfiltration membrane properties require excellent permeability to handle a large amount of target material, excellent high pressure resistance without damaging the membrane under severe operating pressure, and a membrane that can fill the membrane area per unit volume to the maximum. have. In addition, in order to fundamentally prevent the problem of membrane damage caused by deterioration of permeability due to contamination of the membrane surface and introduction of various chemical treatment agents for removing contaminants adhering to the membrane surface, there is a need for a membrane having pollution resistance and chemical resistance. .

As a separator to meet these demands, inorganic hollow fiber separators have been developed. In addition, while the inorganic hollow fiber membrane module was confirmed to have excellent characteristics to meet all of the above requirements, the inorganic hollow fiber module as well as the field of precision filtration, by adding a functional layer on the surface, gas separation, liquid separation Efforts are also underway for use in simultaneous reaction separation processes.

1 is a cross-sectional view showing an inorganic hollow fiber module according to the prior art.

The inorganic hollow fiber module 50 according to FIG. 1 is filled at both ends of the module to secure airtightness after filling the module case 30 with a plurality of hollow fibers 10 having a pore size of 0.1 to 10 μm and a porosity of 30 to 50%. It is in the form of finishing with potting materials (20).

The inorganic hollow fiber module 50 having the structure as described above may be applied as a water treatment filter, a dust filter, a catalyst carrier, etc., and when a functional layer is added to the surface, gas separation, liquid phase separation, and reaction separation may be performed simultaneously. It can be applied to. In particular, the inorganic hollow fiber module 50 has a lot of attention because the membrane area per unit volume is very high, and the productivity is excellent to overcome the high cost of the inorganic membrane, the difficulty of scale-up.

However, the inorganic hollow fiber is porous and very thin material, so the strength is weak, so it is easy to be broken due to mechanical damage in the casing and potting process.

Therefore, in order to apply to the processes such as water treatment, gas separation, liquid separation, reaction separation, dust filter, etc. of the inorganic hollow fiber module, it is necessary to develop a technology that is easy to handle and easily scale-up.

The inorganic hollow fiber 10 shown in FIG. 1 generally has a porosity of 30 to 50% except for an ion conductive inorganic hollow fiber, which is a fully dense body. Therefore, as described above, the inorganic hollow yarns are often broken during post-treatment due to their high porosity, and several methods for solving such problems have recently been reported.

In 1992, Saito Hiroyuki et al. Introduced a dope solution made of Al ₂ O ₃ , MgO, polysulfone, dimethylformamide into a plate mold, and then introduced two layers of inorganic hollow fiber membranes prepared in parallel side by side. The sintered composite was immersed in the water and the composite pressed by the equilibrium lid while pressed with the convex lid, and the pores between the hollow fibers were filled with a porous material, and a plate-shaped inorganic hollow fiber module having pores between the hollow fiber layers was prepared.

In 2006, Mirjam Kilgus et al prepared polymer-ceramic hollow fiber precursors by wet spinning dope solutions made of Al ₂ O ₃ , polysulfone, or N-methyl-2-pyrrolidone (NMP). , by heat treatment at 1500 ℃ from the held state by the plate-shaped, tubular, coil-shape it was prepared in the sintered Al ₂ O ₃ Al ₂ O ₃ hollow fibers between the hollow fiber structure. That is, in order to suppress the phenomenon which breaks during the post-treatment of Al ₂ O ₃ hollow yarns, the hollow fibers are partially sintered during the heat treatment process to enhance the strength. However, this method requires the heat treatment temperature to be raised to 1500 ° C for bonding between the hollow fibers, which inevitably leads to a decrease in porosity, impedes material movement through the hollow fibers, and a pressure loss, thereby causing target performance of filters, membranes, and catalyst carriers. This has a problem of deterioration.

The present invention is a technology that can ensure the ease of handling, which is recognized as the industrial application limit in the production of inorganic hollow fiber, by combining inorganic hollow fiber using an inorganic binder to produce an inorganic hollow fiber bundle, inorganic hollow fiber In order to ensure ease of handling and to prevent inorganic hollow fiber porosity by binding inorganic hollow yarns to each other by inorganic binder at low temperature, and to bundle and bundle inorganic hollow fiber bundles, empty spaces between bundles naturally occur to prevent material permeation. It is an object of the present invention to provide an inorganic hollow fiber bundle and a method of manufacturing the same so as to be advantageous.

Inorganic hollow fiber bundle manufacturing method according to the present invention comprises the steps of (a) forming a plurality of inorganic hollow fiber bundles of inorganic hollow fiber bundles of inorganic hollow fiber bundles using a mold jig, (b) the inorganic hollow fiber Sealing both ends of the yarn bundle with a polymer binder, (c) coating an inorganic binder on the surface of the inorganic hollow fiber bundle sealed at both ends, and (d) a heat treatment process to remove the polymer component, , The inorganic hollow yarns are characterized in that it comprises a step of coupling to each other.

Herein, the inorganic hollow yarn of step (a) is obtained by mixing (a-1) a polymer, inorganic powder, a solvent, and a dispersant in the form of a slurry or a paste, and (a-2) the obtained material. To pass through the mold (spinneret), washing and drying to prepare a polymer-inorganic hollow fiber precursor in the form of hollow fiber and (a-3) heat-treating the obtained polymer-inorganic hollow fiber precursor to remove the polymer component It is characterized in that it is produced by a method comprising the step of preparing an inorganic hollow fiber.

In this case, the polymer is selected from polysulfone polymer, polyether sulfone polymer, polyacrylonitrile polymer, cellulose acetate polymer, polyvinylidene fluoride polymer and polyimide polymer, characterized in that the inorganic The powder is characterized in that it is selected from metals such as nickel, iron, aluminum oxide, zirconium oxide, silicon carbide, silicon nitride, oxides, nitrides and carbides.

Next, the cross section of the fixing ring is circular or elliptical, the cross section of the mold jig is characterized in that any one of the circular, elliptical and polygonal.

Next, the polymer binder is one or more of epoxy, urethane, silicone, the inorganic binder is one or more of silica sol, alumina sol, powder glass slurry, clay mineral slurry Characterized in that the inorganic binder is used in the immersion coating method.

Next, the heat treatment process may be performed at 200 to 1000 ° C. for 30 minutes to 48 hours, and the inorganic hollow fiber bundle may be formed in a wave shape with respect to the longitudinal direction.

In addition, the inorganic hollow fiber module according to the present invention includes an inorganic hollow fiber bundle manufactured by the above-described method, an intermediate layer comprising a form impregnated with at least one inorganic hollow fiber bundle, and a module case for protecting the surface of the intermediate layer. Characterized in that.

Here, the cross section of the module case is characterized in that any one of the plate-shaped, square, round and oval.

Next, the intermediate layer is made of a material of any one or more of a polymeric potting agent, a metal potting agent and a ceramic potting agent, wherein the polymeric potting agent is any one or more of epoxy, urethane and silicone, the metal potting The agent is aluminum or copper, and the ceramic potting agent is alumina or glass.

In the method of manufacturing an inorganic hollow fiber bundle according to the present invention, by using an inorganic binder, the bonding force between inorganic hollow fibers can be efficiently increased without using a high temperature, and the reduction of inorganic hollow fiber porosity is not caused by a low heat treatment temperature. Thus providing a beneficial effect on material permeation.

In addition, when laminating and modularizing the inorganic hollow fiber bundle provides an effect that can have a relatively stable through the excellent mechanical properties, such as module manufacturing, regeneration process.

In addition, when the inorganic hollow fiber module is manufactured by stacking the manufactured inorganic hollow fiber bundles, natural voids are generated between the inorganic hollow fiber bundles to act as a material movement path, thereby obtaining an effect of suppressing problems such as pressure loss. Can be.

The present invention relates to an easy-to-handle inorganic hollow fiber bundle and a method for manufacturing the same, and more particularly, to form a bundle in which bundles of inorganic hollow fiber manufactured in general are formed using a fixing ring or a fixture, and the inorganic hollow fiber Both ends of the yarn bundle are sealed with a polymer adhesive, and then the inorganic binder is coated only on the outer surface of the inorganic hollow fiber by an immersion coating method to form an inorganic hollow fiber bundle in which the inorganic hollow yarns are strongly bonded to each other through a heat treatment process.

Hereinafter will be described in more detail with respect to the inorganic hollow fiber bundle and the manufacturing method according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various other forms, and it should be understood that the present embodiment is intended to be illustrative only and is not intended to be exhaustive or to limit the invention to the precise form disclosed, To fully disclose the scope of the invention to a person skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Figure 2 is a perspective view of the inorganic hollow fiber bundle according to the present invention.

Referring to FIG. 2, the inorganic hollow fiber bundles 120 formed of bundles of inorganic hollow fibers 100 may be seen. At this time, the cross section of the inorganic hollow fiber bundle 120 may be formed in a circle, oval, square, star, triangle, and may be formed in other closed curve or polygonal shape. The shape of this cross section may be adjusted according to the cross-sectional shape of the fixing ring or fixture jig passing through the inorganic hollow fibers after forming the inorganic hollow fiber.

In addition, the illustrated inorganic hollow fiber bundle 120 is formed in a straight line with respect to the longitudinal direction, but may be curved or wave form.

The cross-sectional shape of the inorganic hollow fiber bundle 120 or the shape in the longitudinal direction may be used for manufacturing the inorganic hollow fiber module to be formed in each use and subsequent processes such as water treatment, gas separation, liquid separation, reaction separation, and dust filter. Therefore, it can be changed.

Hereinafter will be described in detail with respect to the manufacturing method of the inorganic hollow fiber bundle 120 that can exhibit the characteristics as described above.

Figure 3 is a flow chart illustrating a method for manufacturing an inorganic hollow fiber bundle according to the present invention.

Looking at the overall process with reference to Figure 3, the first step (S100) to prepare an inorganic hollow fiber. At this time, the step of preparing the inorganic hollow fiber is a step of obtaining a slurry by mixing the polymer material and the inorganic powder, and passing the obtained slurry through a triple nozzle (spinneret), solvent exchange, washing, drying To prepare a polymer-inorganic hollow fiber precursor, and to heat-treat the polymer-inorganic hollow fiber precursor to prepare an inorganic hollow fiber.

Here, the polymer material serves to maintain the hollow fiber shape in the composition and is completely removed through the heat treatment process. Such polymer materials may include polysulfone polymers, polyethersulfone polymers, polyacrylonitrile polymers, cellulose acetate polymers, polyvinylidene fluoride polymers, polyimide polymers, and the like. Or it can mix and use 2 or more types.

In addition, the inorganic powder may be selected from metals, oxides, nitrides and carbides.

The polymer material and the inorganic powder are dimethylformamide, N-methyl-2-pyrrolidone, dimethylamide, dimethylacetamide, dimethyl sulfoxide, 1,4-dioxane, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether , Diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dibutyl ether may be used alone or mixed with two or more mixed organic solvents.

After preparing a polymer-inorganic hollow fiber precursor using such materials, the polymer-inorganic hollow fiber precursor is heat-treated to remove the polymer polymer, followed by partial sintering between the inorganic particles to prepare inorganic hollow fiber. At this time, the heat treatment temperature and time are determined according to the type of inorganic powder.

Thereafter, the inorganic hollow fibers are formed using a fixing ring or a fixture to form a bundle of hollow fiber bundles (S120).

Thereafter, both ends of the inorganic hollow fiber bundles formed by the fixing ring or the fixture are sealed by using a polymer material (polymer adhesive) such as epoxy, silicone, urethane, and the like. This step is to prevent the inorganic binder material from being introduced into the inorganic hollow fiber when the immersion coating on the inorganic binder.

In addition, after the step of coating the inorganic binder on the surface of the inorganic hollow fiber bundle (S130), and performing a heat treatment process to remove all the polymer components.

In the conventional case of Al ₂ O ₃ inorganic hollow yarns, the heat treatment temperature had to be raised to 1500 ° C. in order to induce bonds between the inorganic hollow fibers, but in the present invention, 30 minutes to 48 hours may be performed at 200 ° C. to 1000 ° C. In this case, the inorganic binder may be one or more selected from silica sol, alumina sol, powder glass slurry, and clay mineral slurry, and may be appropriately selected according to the chemical atmosphere and temperature to which inorganic hollow fiber is applied.

In addition, it is preferable to use an immersion coating method in which the inorganic binder solution is contained in a container and the shape of the inorganic hollow fiber bundle is immersed. Immersion coating method using such an inorganic binder can be selectively coated only on the outer surface of the inorganic hollow fiber, it can provide a stronger bonding force than the conventional bonding method by sintering.

The inorganic binder solution is advantageously the inorganic binder solid content of 2 to 30% by weight, less than 2% by weight of the weak bond between the inorganic hollow fiber, if more than 30% by weight thick inorganic binder layer on the outer surface of the inorganic hollow fiber Can form and interfere with material movement. In addition, inorganic hollow fiber bundle coated with inorganic binder is preferably dried at a temperature of 100 ~ 200 ℃ before the heat treatment process. This is because the inorganic hollow fiber bundle shape is maintained even when the fixing binder and the fixture are removed by the inorganic binder exerting some bonding force during the drying process.

Next, the step of heat-treating the inorganic hollow fiber bundle coated on the surface of the inorganic binder (S140) performs the step of bonding between the inorganic hollow fiber. At this time, the heat treatment temperature and time are determined by the inorganic binder material, and if possible, it is advantageous to use the same material as the inorganic hollow fiber.

In the present invention, the heat treatment temperature and time is determined in the range of 30 minutes to 48 hours at 200 ~ 1000 ℃ by the inorganic binder material, if the heat treatment at a temperature exceeding 1000 ℃ severe sintering between the inorganic binder to interfere with the material movement When the heat treatment is performed at a temperature of less than 200 ° C., the bond between the inorganic binder and the bond between the inorganic binder and the inorganic hollow fiber is weak, so that it is difficult to obtain the desired strength.

In addition, if the heat treatment for more than 48 hours, the sintering between the inorganic binders may be severely hindered to move the material, and if the heat treatment for less than 30 minutes, the bond between the inorganic binder and the inorganic binder and the inorganic hollow fiber weaken the desired strength It can be hard to get.

Next, the inorganic hollow fiber module is formed using the inorganic hollow fiber bundle formed by the heat treatment process. The potting material as the intermediate layer may be a polymer potting agent, a metal potting agent, or a ceramic potting agent depending on the environment in which the inorganic hollow fiber bundle is used. The polymer potting agent may be epoxy, urethane, silicone, or the like, the metal potting agent may be a low melting point metal such as aluminum or copper, and the ceramic potting agent may be alumina, glass, or the like.

4 is a cross-sectional view showing an inorganic hollow fiber module according to an embodiment of the present invention.

FIG. 4 gathers three inorganic hollow fiber bundles 120 formed through the process of FIG. 3 to form an inorganic hollow fiber module 150 having a circular cross-sectional shape.

The outermost of the inorganic hollow fiber module 150 is a module case 140, the potting material 130 and a plurality of inorganic hollow fiber bundles 120 inside the module case 140 is provided.

Here, comparing the cross-sectional shape of FIG. 4 with the cross section of FIG. 1, the inorganic hollow fiber module according to the present invention is an inorganic hollow fiber separator capable of reducing pressure loss due to the presence of naturally unfilled volume between the inorganic hollow fiber bundles. It acts as a passage for the liquid or gas passing through it.

5 is a cross-sectional view showing an inorganic hollow fiber module according to another embodiment of the present invention.

5 is formed in the form including the potting material 230 and the module case 240 as shown in FIG. 4, the inorganic hollow fiber bundle 220 is arranged horizontally to form the inorganic hollow fiber module 250 of the flat form It is the Example which showed what was formed.

In addition, the inorganic hollow fiber module according to the present invention is not limited to the circular, flat plate may be formed in a shape such as a square, elliptical, the present invention is not limited by the cross-sectional shape.

Hereinafter, a specific manufacturing method for the inorganic hollow fiber bundle according to the present invention formed through the above-described process will be described, and each characteristic will be described.

[Mineral] Hollow fiber  Precursor preparation]

100 g of polysulfone, 700 g of aluminum oxide (Al ₂ O ₃ ) powder, and 30 g of polyvinylpyrrolidone (PVP) were added to 400 g of N-methyl-2-pyrrolidone (NMP), followed by zirconia (ZrO ₂ ) balls. The slurry was prepared in a mixed dispersion process of ball milling at room temperature for 48 hours using hereinafter referred to as "dope". The prepared slurry was degassed at 50 ° C. and atmospheric pressure for 12 hours.

Next, the obtained dope was passed through a tripleneret having a dimension of 1.4-0.8-0.55 mm, and then dropped in a water washing bath for solvent replacement. At this time, the inflow rate of the dope was controlled by the gear pump. The rotation speed of the gear pump was 12 rpm, and water (hereinafter referred to as the related terminology “bore”) was introduced into the LC pump through the innermost nozzle of the triple nozzle. 14 mL / min, the pressure was 5 MPa. The wash bath was filled with water and the temperature was room temperature. The distance between the triple spinneret inlet and the bath water surface (hereinafter referred to as the term "air gap") was 15 cm. Thereafter, the obtained polysulfone-alumina hollow fiber precursor was washed with water at room temperature for 48 hours and dried at 100 ° C. for 24 hours to finally prepare a polysulfone-alumina hollow fiber precursor.

FIG. 6 shows the photo of the polysulfone-alumina hollow fiber precursor being radiated to the triple nozzle, and a scanning electron micrograph of the entire cross section of the polysulfone-alumina hollow fiber precursor prepared in FIG. 7 is shown. FIG. 8 The high magnification scanning electron micrograph of the inner surface of the polysulfone-alumina hollow fiber precursor prepared in was shown. The high magnification scanning electron micrograph of the inner surface shows that the aluminum oxide particles are well dispersed in the polysulfone polymer.

[Mineral] Hollow fiber  Produce]

The polysulfone-alumina hollow fiber precursor prepared through the above-described process was heat-treated at 1350 ° C. for 4 hours to remove the polysulfone polymer and to prepare a plurality of Al ₂ O ₃ inorganic hollow fibers partially sintered between aluminum oxide particles. The temperature increase rate during the heat treatment was 4 ℃ / min and the cooling rate was 4 ℃ / min.

9 shows a photograph of the alumina hollow fiber prepared in FIG. 9, and shows a scanning electron micrograph of the whole cross section of the alumina hollow fiber prepared in FIG. 10. A high magnification scanning electron micrograph of the inner surface of the alumina hollow fiber prepared in FIG. 11. Indicated. The high-magnification scanning electron micrograph of the inner surface showed that the polysulfone polymer disappeared by heat treatment and the alumina particles were partially sintered to have uniform pores on the surface, and the porosity was about 35%. And the pore diameter was about 500 nm.

[Mineral] Hollow fiber  Bundle manufacturing]

After the alumina hollow fiber manufactured through the above-described process was formed using a circular viton fixing ring to form a bundle shape having a circular cross section, each inorganic hollow fiber was sealed with silicon using a silicon gun. The silicone seal is intended to allow the inorganic binder to be coated only on the inorganic hollow fiber outer surface during future dip coating.

The bundle of inorganic hollow fiber was immersed in alumina sol solution having a solid content of 10% by weight for 10 minutes to coat the alumina binder on the outer surface of the alumina hollow fiber. The alumina sol-coated alumina hollow fiber bundle was dried at 100 ° C. for 60 minutes, and after the drying operation, the Viton fixing ring was separated and removed.

Next, the inorganic hollow fiber bundle of the bundle form was heat-treated at 600 ° C. for 4 hours to prepare an inorganic hollow fiber bundle having a strong bond between the hollow fibers. At this time, the temperature increase rate was 4 ℃ / min and the cooling rate was 4 ℃ / min.

12 shows the alumina hollow fiber bundle photo, and the high magnification and the low magnification scanning electron micrographs of the inner surface of the hollow fiber in the alumina hollow fiber bundle of FIGS. 13 and 14 are shown. The prepared alumina hollow fiber bundles were easier to handle compared to the alumina hollow fiber shown in FIG. 9, and the breakage phenomenon was suppressed during handling. It can be confirmed that the same as the pore structure (Fig. 11). This is believed to be due to the 600 ° C heat treatment temperature for the bundle manufacturing is lower than the 1350 ° C heat treatment temperature for the hollow fiber manufacturing. In addition, it can be seen from the low magnification scanning electron micrograph (FIG. 14) that the pore distribution is uniform throughout.

As described above, the inorganic hollow fiber bundle prepared by the present invention can induce a strong bond between the hollow fibers using the inorganic binder. As a result, it is possible to manufacture an inorganic hollow fiber bundle having excellent strength, easy handling, and low heat treatment temperature to maintain high porosity, thereby preventing problems of pressure loss and permeability reduction.

In addition, when the inorganic hollow fiber module is manufactured using the inorganic hollow fiber bundle according to the present invention, a natural empty space may be generated between the bundle and the bundle so that high performance can be expressed.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments and can be manufactured in various forms, and having ordinary skill in the art to which the present invention pertains. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not limiting.

1 is a cross-sectional view showing an inorganic hollow fiber module according to the prior art.

Figure 2 is a perspective view of the inorganic hollow fiber bundles according to the present invention.

Figure 3 is a flow chart illustrating a method for manufacturing an inorganic hollow fiber bundle according to the present invention.

4 is a sectional view showing an inorganic hollow fiber module according to an embodiment of the present invention.

5 is a sectional view showing an inorganic hollow fiber module according to another embodiment of the present invention.

Figure 6 is a photograph of the polysulfone-alumina hollow fiber precursor according to the invention is being radiated by a triple nozzle.

7 is a scanning electron micrograph of the overall cross-section of the polysulfone-alumina hollow fiber precursor according to the present invention.

8 is a high magnification scanning electron micrograph of the inner surface of a cross section of a polysulfone-alumina hollow fiber precursor according to the present invention.

Figure 9 is a photograph showing alumina hollow fiber according to the present invention.

10 is a scanning electron micrograph of the overall cross-section of the alumina hollow fiber according to the present invention

Figure 11 is a high magnification scanning electron micrograph of the inner surface of the cross section of the alumina hollow fiber according to the present invention.

12 is a photograph showing an alumina hollow fiber bundle according to the present invention.

Figure 13 is a high magnification scanning electron micrograph of the inner surface of the hollow fiber in the alumina hollow fiber bundle according to the present invention.

Figure 14 is a low magnification scanning electron micrograph of the inner surface of the hollow fiber in the alumina hollow fiber bundle according to the present invention.

Claims (16)

(a) forming a plurality of inorganic hollow fiber bundles of inorganic hollow fiber bundles using a fixed ring or a mold jig; (b) sealing both ends of the inorganic hollow fiber bundles with a polymeric binder; (c) coating an inorganic binder on the surface of the inorganic hollow fiber bundles sealed at both ends; And (d) performing a heat treatment process to remove the polymer component and allowing the inorganic hollow fibers to be bonded to each other. The method of claim 1, The inorganic hollow yarn of step (a) (a-1) mixing a polymer, an inorganic powder, a solvent, and a dispersant to obtain a slurry or paste in the form of any one; (a-2) passing the obtained material through a spinneret, washing and drying to prepare a polymer-inorganic hollow fiber precursor in the form of a hollow fiber; And (A-3) heat-treating the obtained polymer-inorganic hollow fiber precursor to remove the polymer component to prepare an inorganic hollow fiber; a method for producing an inorganic hollow fiber bundle, characterized in that it is produced by a method comprising a. The method of claim 2, The polymer is an inorganic hollow fiber bundle, characterized in that selected from polysulfone-based polymer, polyether sulfone-based polymer, polyacrylonitrile-based polymer, cellulose acetate-based polymer, polyvinylidene fluoride-based polymer and polyimide-based polymer Way. The method of claim 2, The inorganic powder is a method of manufacturing an inorganic hollow fiber bundle, characterized in that selected from metals, oxides, nitrides and carbides such as nickel, iron, aluminum oxide, zirconium oxide, silicon carbide, silicon nitride. The method of claim 1, The cross section of the fixing ring is round or oval, The cross section of the mold jig is a hollow fiber hollow fiber bundle manufacturing method, characterized in that any one of. The method of claim 1, Wherein said polymeric binder is at least one of epoxy, urethane, and silicone. The method of claim 1, The inorganic binder is a silica sol, alumina sol, powder glass (powder glass) slurry, clay (clay) mineral hollow fiber bundle manufacturing method characterized in that at least one of the mineral slurry. The method of claim 1, The inorganic binder is an inorganic hollow fiber bundle manufacturing method characterized in that the coating by the immersion coating method. The method of claim 1, The heat treatment process is a method for producing an inorganic hollow fiber bundle, characterized in that carried out for 30 minutes to 48 hours at 200 ~ 1000 ℃. The method of claim 1, The inorganic hollow fiber bundle manufacturing method of the inorganic hollow fiber bundle, characterized in that formed in a wave shape with respect to the longitudinal direction. An inorganic hollow fiber bundle manufactured by any one of claims 1 to 10; An intermediate layer comprising one or more of the inorganic hollow fiber bundles in the form of impregnation; And Inorganic hollow fiber module, characterized in that it comprises a module case for protecting the surface of the intermediate layer. The method of claim 11, wherein Inorganic hollow fiber module, characterized in that the cross section of the module case is any one of a plate, square, round and oval. The method of claim 11, wherein The intermediate layer is an inorganic hollow fiber module, characterized in that made of any one or more materials of a polymeric potting agent, a metal potting agent and a ceramic potting agent. The method of claim 13, Inorganic hollow fiber module, characterized in that the polymeric potting agent is any one or more of epoxy, urethane, and silicone. The method of claim 13, Inorganic hollow fiber module, characterized in that the metal potting agent is aluminum or copper. The method of claim 13, Inorganic hollow fiber module, characterized in that the ceramic potting agent is alumina or glass.

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