CN112159239A - Preparation method of roll type ceramic membrane support and ceramic membrane product thereof - Google Patents
Preparation method of roll type ceramic membrane support and ceramic membrane product thereof Download PDFInfo
- Publication number
- CN112159239A CN112159239A CN202011041051.0A CN202011041051A CN112159239A CN 112159239 A CN112159239 A CN 112159239A CN 202011041051 A CN202011041051 A CN 202011041051A CN 112159239 A CN112159239 A CN 112159239A
- Authority
- CN
- China
- Prior art keywords
- membrane
- layer
- rolled
- ceramic membrane
- ceramic
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62218—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic films, e.g. by using temporary supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63424—Polyacrylates; Polymethacrylates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63444—Nitrogen-containing polymers, e.g. polyacrylamides, polyacrylonitriles, polyvinylpyrrolidone [PVP], polyethylenimine [PEI]
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
- C04B35/6365—Cellulose or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/94—Products characterised by their shape
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/95—Products characterised by their size, e.g. microceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
The invention discloses a preparation method of a roll-type ceramic membrane support body, which is characterized in that a membrane surface layer and a comb-shaped supporting layer are respectively prepared, and the membrane surface layer and the comb-shaped supporting layer are stacked and pasted to be rolled into a cylinder shape to obtain the roll-type ceramic membrane support body. Also disclosed is a rolled ceramic film article. The invention realizes the preparation of a novel ceramic membrane structure, and the obtained roll-type ceramic membrane structure greatly improves the membrane area in unit filling volume, thereby having high permeation flux.
Description
Technical Field
The invention relates to the technical field of ceramic membrane separation, in particular to a preparation method of a ceramic membrane support and a ceramic membrane product thereof.
Background
The inorganic ceramic membrane has the advantages of high temperature resistance, solvent resistance, acid and alkali corrosion resistance, high mechanical strength, easy cleaning, regeneration and the like, and has unique technical advantages in the fields of chemical industry, food, pharmacy and the like. However, due to the rigidity of ceramic materials, ceramic membranes can only be prepared in the form of tubes, multiple channels and flat plates, and the membrane area per unit volume is relatively small. In order to solve this problem, the researchers have improved the existing ceramic membranes, for example, by reducing the diameter of the membrane channels of the honeycomb ceramic membrane to increase the membrane area per unit volume, but the permeate produced on the membrane surface in the center in this way needs to permeate through a longer distance, and the actual membrane permeation flux is not increased significantly; for another example, a configuration of filling a hollow fiber inorganic membrane in a honeycomb ceramic membrane is developed, so that while the membrane area/volume ratio of the inorganic membrane is effectively improved, the contradiction between the configuration of the hollow fiber inorganic membrane and the filtration mode of the hollow fiber inorganic membrane is effectively solved, however, the port sealing of the configuration is relatively complex.
For flexible organic membranes, a roll of membrane element can be prepared by winding. It is another type of flat membrane, which is constructed by inserting a permeate spacer (material is polypropylene or Vexar) between two flat membrane sheets, bonding and sealing three edges of the two flat membrane sheets with epoxy or polyurethane glue, and fixing the fourth unbonded edge on a central tube with an opening. Thus, the two flat membrane sheets and the one permeate spacer screen form a "membrane bag" which is open on one side and sealed on three sides. The opening of the membrane bag is opposite to the hole of the central tube, and the permeate liquid permeating the membrane can be collected in the central tube. The front side of the membrane, i.e. the side through which the feed liquid flows, is lined with a feed liquid separation net, and the feed liquid separation net and the membrane bag are wound into a spiral shape around the central pipe, so that the configuration has a higher membrane area per unit volume.
At present, no report of a roll type ceramic membrane element is seen, and the technical bottleneck of the report lies in the regularity of the shape of a product which is difficult to form due to the characteristics of ceramic pug.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a roll-type ceramic membrane support. Another object of the present invention is to provide a rolled ceramic film article.
The purpose of the invention is realized by the following technical scheme:
the invention provides a preparation method of a roll-type ceramic membrane support, which comprises the following steps:
(1) preparation of thin slabs
Firstly, preparing a thin blank sheet with the thickness of 1.0-2.5 mm;
(2) preparation of a support Green body component
Manufacturing the thin blank sheet into a long rectangular film surface layer; stamping the thin blank sheet into a long comb-shaped supporting layer which has the same width as the membrane surface layer and is composed of comb bones and comb teeth by using a stamping machine;
(3) bonding and firing of green support components
The membrane surface layer and the supporting layer are aligned in tail end and are sequentially stacked at intervals from bottom to top according to the sequence of the membrane surface layer, the supporting layer, the membrane surface layer and the supporting layer, and the total number of layers is an even number; the two adjacent supporting layers are arranged in mirror symmetry, and the length of the supporting layer at the top layer is smaller than that of the rest membrane surface layer and the rest supporting layer which are equal in length; after the contact surfaces of all layers are bonded into a whole by using a binder solution, the front ends of the membrane surface layer and the supporting layer with the same length are rolled to the front end of the top supporting layer to form an inner circle, then the inner circle is continuously rolled to form a cylindrical supporting body green body, and the cylindrical supporting body green body is dried and calcined to obtain a vertical cylindrical rolled ceramic membrane supporting body; and a raw material liquid channel is formed between the comb teeth of the support layer with the downward comb teeth and the membrane surface layer.
In the above scheme, in the step (2) of the present invention, the interval between the comb teeth gradually increases from the front end to the tail end of the support layer.
Further, the binder solution in the step (3) is an aqueous solution of polyvinyl alcohol or hydroxypropyl methyl cellulose with a concentration of 0.05-3 wt%.
The other purpose of the invention is realized by the following technical scheme:
the preparation method of the roll-type ceramic membrane product provided by the invention comprises the following steps: and coating separation membrane layer slurry on the surface of the raw material liquid channel of the rolled ceramic membrane support obtained by the support preparation method to form a separation membrane layer, thereby obtaining the rolled ceramic membrane product.
Furthermore, the roll-type ceramic membrane support and the separation membrane layer are prepared from the following raw materials in percentage by weight:
the support body comprises ceramic powder with the average particle size of 5-50 mu m, and pore-forming agent, binder, water, lubricant and plasticizer with the dosage of 1-8 wt%, 2-6 wt%, 10-38 wt%, 2-4 wt% and 0.5-1.5 wt% of the ceramic powder respectively; firstly, mixing the ceramic powder, the pore-forming agent and the binder in a mixer to form a uniform mixture, then mixing the mixture with water, a lubricant and a plasticizer, kneading the mixture in a pug kneading machine to form mud and aged mud, and then rolling the mud by using a rolling mill to form a flexible thin blank sheet;
the separation film layer slurry is composed of ceramic powder with the average particle size of 0.5-1 mu m, dispersant, stabilizer and water, and the dispersant, the stabilizer and the water are respectively used in an amount of 0.5-1.2 wt%, 1-4 wt% and 700-920 wt% of the ceramic powder, and are stirred and mixed to form suspension slurry.
In the scheme, the ceramic powder is Al2O3、ZrO2、TiO2、SiO2SiC, or a combination thereof; the pore-forming agent is starch; the binder is one or the combination of carboxymethyl cellulose, methyl cellulose, polyvinyl alcohol and hydroxypropyl methyl cellulose; the lubricant is glycerol and/or oleic acid; the plasticizer is polyvinyl alcohol; the dispersant is one or the combination of polyacrylic acid, Dolapix series dispersant and polyvinylpyrrolidone, or polyethyleneimine, or the combination of polyethyleneimine and polyvinylpyrrolidone; the stabilizer is one or the combination of polyacrylic acid or polyethyleneimine, polypropylene pyrrolidone and polyvinyl alcohol (polyacrylic acid cannot be used in cooperation with polyethyleneimine).
Further, the green body of the rolled ceramic membrane support body is calcined at the temperature of 1500-1650 ℃, and the heat preservation time is 2-4 hours, so that the rolled ceramic membrane support body is obtained.
Further, the separation membrane layer slurry is placed in a hopper by a dip coating method, the cylindrical roll-type ceramic membrane support body is immersed into the separation membrane layer slurry from the lower end, the liquid level of the separation membrane layer slurry reaches the lower edge of the comb rib at the upper end, so that a wet membrane is formed in the raw material liquid channel, and the separation membrane layer with the average pore diameter of 0.1-0.5 mu m is obtained after drying and calcining.
In the scheme, the wet film is dried, then calcined at the temperature of 1300-1450 ℃, and kept warm for 2-4 hours.
The ceramic membrane prepared by the preparation method of the roll-type ceramic membrane product.
The invention has the following beneficial effects:
(1) the invention provides a novel ceramic membrane structure, namely a rolled ceramic membrane, which is characterized in that a membrane surface layer and a comb-shaped supporting layer are respectively prepared, and the membrane surface layer and the comb-shaped supporting layer are stacked and pasted and then rolled into a cylinder shape to obtain a rolled ceramic membrane supporting body, so that the membrane area in unit filling volume can be improved.
(2) The invention synergistically solves the problems of supporting and permeating channels of the roll-type ceramic membrane. The supporting layer with the comb-shaped structure is formed by stamping and is adhered and sintered with the membrane surface layer, so that on one hand, the comb-shaped structure is combined with the membrane surface layer to play a role in supporting the membrane surface layer; on the other hand, the comb teeth of the comb-shaped structure play a role in forming a liquid channel, the comb ribs play a role in closing ports, and the two comb-shaped structures which are mirror-symmetrical form flow channels of raw material liquid and penetrating liquid respectively.
(3) Compared with the existing multi-channel ceramic membrane and honeycomb ceramic membrane, the thickness of the membrane surface layer of the rolled ceramic membrane is only 1.0-2.5 mm, and the penetrating fluid directly penetrates through the membrane surface layer and enters the penetration channel, so that the rolled ceramic membrane has smaller penetration distance, does not need to penetrate in the porous membrane surface layer, greatly reduces the penetration resistance, and is easy to obtain high penetration flux.
Drawings
The invention will now be described in further detail with reference to the following examples and the accompanying drawings:
FIG. 1 is a schematic illustration of a membrane facing according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a support layer according to an embodiment of the present invention;
FIG. 3 is a schematic view of a stack of a membrane face layer and a support layer according to an embodiment of the invention;
fig. 4 is a perspective view of a rolled ceramic membrane support according to an embodiment of the present invention.
In the figure: the membrane surface layer 1, the supporting layer 2, the comb ribs 2a, the comb teeth 2b, the front end 2 b' of the top supporting layer, the inner circle 3 and the penetrating fluid channel 4
Detailed Description
The first embodiment is as follows:
in this embodiment, a separation membrane layer slurry is coated on a surface of a raw material liquid channel of a rolled ceramic membrane support to form a separation membrane layer, so as to obtain a rolled ceramic membrane product.
The preparation method of the roll-type ceramic membrane support comprises the following steps:
(1) preparation of thin slabs
Mixing 100kg of alumina powder with the average particle size of 40 mu m, 8kg of starch and 5kg of hydroxypropyl methyl cellulose in a mixer to obtain a uniform mixture, mixing the mixture with 18kg of water, 2kg of glycerol and 1kg of polyvinyl alcohol, kneading the mixture in a pug kneader to obtain mud, ageing the mud for 1 week, rolling the mud to the thickness of 1mm by using a rolling mill, and placing the mud in a constant-temperature constant-humidity drying box (the temperature is 80 ℃ and the humidity is 90%) for drying for 2 hours to obtain a flexible thin blank sheet;
(2) preparation of a support Green body component
Making the thin blank into a long rectangular film surface layer 1 (see figure 1); punching the thin blank sheet into a long comb-shaped support layer 2 composed of comb ribs 2a and comb teeth 2b having a width equal to the film surface layer by using a punching machine, wherein the interval between the comb teeth 2b gradually increases from the front end to the rear end of the support layer 2 as shown in fig. 2;
(3) bonding and firing of green support components
Aligning the tail ends of the membrane surface layer 1 and the support layer 2, and stacking the membrane surface layer 1, the support layer 2, the membrane surface layer 1 and the support layer 2 in sequence from bottom to top; as shown in fig. 3, the two support layers are arranged in mirror symmetry, and the length of the support layer on the top layer is smaller than the remaining membrane surface layer and the support layer with the same length; bonding the contact surfaces of all layers by using a PVA solution with the concentration of 0.05 percent as a binder solution, shaping by using the pressure of 1MPa to form a bonded whole, then rolling the front ends of the membrane surface layer and the supporting layer with the same length to the front end 2 b' of the top supporting layer to form an inner circle 3, then continuously rolling (coating the new contact surface with the binder solution) to form a cylindrical supporting body green body, placing the cylindrical supporting body green body in a constant-temperature and constant-humidity drying box (the temperature is 80 ℃ and the humidity is 90 percent) for drying for 12h, calcining at 1650 ℃, and preserving the heat for 4h to obtain the vertical cylindrical rolled ceramic membrane supporting body with the average pore diameter of 1-4 mu m (shown in figure 4), wherein a penetrating fluid channel 4 is formed between the comb teeth 2b of the supporting layer 2 with the upward comb teeth and the membrane surface layer 1, and a raw material fluid channel is formed between the comb teeth 2b of the supporting.
The separation membrane layer slurry was prepared as follows: 5g of Dolapix CE-64 is dissolved in 9kg of water, 1kg of alumina powder with the average particle size of 1 mu m is added, 35g of polyvinyl alcohol 1750 (the polyvinyl alcohol needs to be prepared into a solution with the concentration of 10 wt% in advance) is added, and the mixture is mixed together under the condition of vigorous stirring to obtain stable suspension slurry.
The separation membrane layer was prepared as follows:
and (2) placing the separation membrane layer slurry into a hopper by adopting a dip coating method, immersing the cylindrical roll-type ceramic membrane support body into the separation membrane layer slurry from the lower end, wherein the immersion time is 1min from the liquid level of the separation membrane layer slurry to the lower edge position of the comb rib at the upper end (namely the roll-type ceramic membrane support body is not completely immersed in the slurry to prevent the slurry from overflowing to the side of the permeation channel), so that a wet membrane is formed in the raw material liquid channel, drying at room temperature, calcining at 1450 ℃, and preserving heat for 3h to obtain the separation membrane layer with the average pore diameter of 0.2 mu m, thus obtaining the roll-type ceramic membrane product.
Example two:
the difference between the preparation method of the roll-type ceramic membrane product of the embodiment and the first embodiment is that:
the separation membrane layer slurry of this example was prepared as follows: 10g of Dolapix CE-64 is dissolved in 9kg of water, 1kg of alumina powder with the average particle size of 0.2 mu m is added, 30g of polyvinyl alcohol 1750 (the polyvinyl alcohol needs to be prepared into a solution with the concentration of 10 wt% in advance) is added, and the mixture is mixed together under the condition of vigorous stirring to obtain stable suspension slurry.
In the preparation of the separation membrane layer of the embodiment, the calcination temperature is 1450 ℃, the heat preservation time is 2 hours, and the separation membrane layer with the average pore diameter of 50nm is obtained, namely the roll-type ceramic membrane product is prepared.
Claims (10)
1. The preparation method of the roll-type ceramic membrane support is characterized by comprising the following steps of:
(1) preparation of thin slabs
Firstly, preparing a thin blank sheet with the thickness of 1.0-2.5 mm;
(2) preparation of a support Green body component
Manufacturing the thin blank sheet into a long rectangular film surface layer (1); punching the thin blank sheet into a long comb-shaped supporting layer (2) which has the same width as the film surface layer and is composed of comb bones (2a) and comb teeth (2b) by using a punching machine;
(3) bonding and firing of green support components
The membrane surface layer (1) and the supporting layer (2) are aligned at the tail ends and are sequentially stacked from bottom to top according to the sequence of the membrane surface layer (1), the supporting layer (2), the membrane surface layer (1) and the supporting layer (2) at intervals, and the total number of layers is an even number; the two adjacent supporting layers are arranged in mirror symmetry, and the length of the supporting layer at the top layer is smaller than that of the rest membrane surface layer and the rest supporting layer which are equal in length; after the contact surfaces of all layers are bonded into a whole by using a binder solution, the front ends of the membrane surface layer and the supporting layer with the same length are rolled to the front end (2 b') of the top supporting layer to form an inner circle (3), then the membrane surface layer and the supporting layer are continuously rolled to form a cylindrical green body of the support body, and the cylindrical green body is dried and calcined to obtain the vertical cylindrical rolled ceramic membrane support body; and a penetrating fluid channel (4) is formed between the comb teeth (2b) of the support layer (2) with the upward comb teeth and the membrane surface layer (1), and a raw material fluid channel is formed between the comb teeth (2b) of the support layer (2) with the downward comb teeth and the membrane surface layer (1).
2. The method for preparing a roll-type ceramic membrane support according to claim 1, wherein: in the step (2), the interval between the comb teeth (2b) is gradually increased from the front end to the tail end of the support layer (2).
3. The method for preparing a rolled ceramic membrane support according to claim 1 or 2, wherein: the binder solution in the step (3) is a polyvinyl alcohol or hydroxypropyl methyl cellulose aqueous solution with the concentration of 0.05-3 wt%.
4. A preparation method of a roll-type ceramic membrane product is characterized by comprising the following steps: coating a separation membrane layer slurry on the surface of a raw material liquid channel of the rolled ceramic membrane support obtained by the preparation method according to any one of claims 1 to 3 to form a separation membrane layer, thereby obtaining a rolled ceramic membrane product.
5. The method for preparing the rolled ceramic membrane product according to claim 4, wherein the rolled ceramic membrane support and the separation membrane layer are prepared from the following raw materials:
the support body comprises ceramic powder with the average particle size of 5-50 mu m, and pore-forming agent, binder, water, lubricant and plasticizer with the dosage of 1-8 wt%, 2-6 wt%, 10-38 wt%, 2-4 wt% and 0.5-1.5 wt% of the ceramic powder respectively; firstly, mixing the ceramic powder, the pore-forming agent and the binder in a mixer to form a uniform mixture, then mixing the mixture with water, a lubricant and a plasticizer, kneading the mixture in a pug kneading machine to form mud and aged mud, and then rolling the mud by using a rolling mill to form a flexible thin blank sheet;
the separation film layer slurry is composed of ceramic powder with the average particle size of 0.5-1 mu m, dispersant, stabilizer and water, and the dispersant, the stabilizer and the water are respectively used in an amount of 0.5-1.2 wt%, 1-4 wt% and 700-920 wt% of the ceramic powder, and are stirred and mixed to form suspension slurry.
6. The method of making rolled ceramic film article according to claim 5, wherein:
the ceramic powder is Al2O3、ZrO2、TiO2、SiO2SiC, or a combination thereof;
the pore-forming agent is starch;
the binder is one or the combination of carboxymethyl cellulose, methyl cellulose, polyvinyl alcohol and hydroxypropyl methyl cellulose;
the lubricant is glycerol and/or oleic acid;
the plasticizer is polyvinyl alcohol;
the dispersant is one or the combination of polyacrylic acid, Dolapix series dispersant and polyvinylpyrrolidone, or polyethyleneimine, or the combination of polyethyleneimine and polyvinylpyrrolidone;
the stabilizer is one or the combination of polyacrylic acid or polyethyleneimine, polypropylene pyrrolidone and polyvinyl alcohol.
7. The method of making rolled ceramic film article according to claim 5, wherein: and calcining the green body of the rolled ceramic membrane support body at 1500-1650 ℃, and keeping the temperature for 2-4 h to obtain the rolled ceramic membrane support body.
8. The method of making rolled ceramic film article according to claim 4 or 5 or 6 or 7, characterized in that: and placing the separation membrane layer slurry in a hopper, immersing the lower end of the cylindrical rolled ceramic membrane support body into the separation membrane layer slurry, separating the liquid level of the membrane layer slurry to the lower edge position of the upper comb rib so as to form a wet membrane in the raw material liquid channel, and drying and calcining to obtain the separation membrane layer with the average pore diameter of 0.1-0.5 mu m.
9. The method of making rolled ceramic film article according to claim 8, wherein: and (3) drying the wet film, calcining at 1300-1450 ℃, and preserving heat for 2-4 h.
10. Ceramic membrane produced by the method for producing a rolled ceramic membrane product according to any one of claims 4 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041051.0A CN112159239B (en) | 2020-09-28 | 2020-09-28 | Preparation method of roll-type ceramic membrane support and ceramic membrane product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041051.0A CN112159239B (en) | 2020-09-28 | 2020-09-28 | Preparation method of roll-type ceramic membrane support and ceramic membrane product thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112159239A true CN112159239A (en) | 2021-01-01 |
| CN112159239B CN112159239B (en) | 2022-07-15 |
Family
ID=73861815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011041051.0A Active CN112159239B (en) | 2020-09-28 | 2020-09-28 | Preparation method of roll-type ceramic membrane support and ceramic membrane product thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112159239B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311225A (en) * | 2022-01-18 | 2022-04-12 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane and high-pressure slip casting method thereof |
| CN115650724A (en) * | 2022-11-14 | 2023-01-31 | 三祥新材股份有限公司 | Honeycomb ceramic and preparation method thereof |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130452A (en) * | 1977-05-10 | 1978-12-19 | Indri John L | Process of constructing a ceramic catalyst support |
| JPH0814294A (en) * | 1994-06-29 | 1996-01-16 | Ishikawajima Harima Heavy Ind Co Ltd | Ceramic spring and its manufacture |
| JP2006168029A (en) * | 2004-12-14 | 2006-06-29 | Matsushita Electric Ind Co Ltd | Method and apparatus for manufacturing ceramic green sheet |
| US20070251389A1 (en) * | 2006-04-26 | 2007-11-01 | Dina Katsir | Composite inorganic membrane for separation in fluid systems |
| CN101417215A (en) * | 2008-11-24 | 2009-04-29 | 伍协 | Ordered porous ceramic film and preparation method thereof |
| CN101443093A (en) * | 2006-03-31 | 2009-05-27 | Lg化学株式会社 | Ceramic filter comprising clay and process for preparing thereof |
| CN101682102A (en) * | 2007-06-06 | 2010-03-24 | 奥斯兰姆有限公司 | Method for the production of a ceramic spiral pulse generator and ceramic spiral pulse generator |
| WO2010044970A1 (en) * | 2008-10-17 | 2010-04-22 | General Electric Company | Spirally wound membrane separator assembly |
| CN102671550A (en) * | 2012-06-01 | 2012-09-19 | 清华大学 | Ceramic membrane tube support and preparation method thereof |
| CN106565258A (en) * | 2016-10-08 | 2017-04-19 | 江苏省陶瓷研究所有限公司 | Winding preparation method of high-porosity porous ceramic pipe |
| CN108218005A (en) * | 2017-12-25 | 2018-06-29 | 合肥万呈鑫陶瓷膜科技有限公司 | A kind of spiral filtration formula ceramic membrane |
| CN207913535U (en) * | 2017-08-24 | 2018-09-28 | 江苏赛瑞迈科新材料有限公司 | Hollow fiber ceramic membrane and its application apparatus |
| CN109248566A (en) * | 2018-11-28 | 2019-01-22 | 焦国豪 | A kind of hollow plate type ceramic film of helical duct and preparation method thereof |
| CN109789369A (en) * | 2017-03-17 | 2019-05-21 | 住友化学株式会社 | Gas separation membrane element, gas separation membrane module and gas fractionation unit |
| CN109908764A (en) * | 2019-03-14 | 2019-06-21 | 景德镇陶瓷大学 | A kind of preparation method of Inorganic Nanofiltration Membranes and its product obtained |
| CN110520210A (en) * | 2017-04-20 | 2019-11-29 | 阿夸曼布拉尼斯公司 | Not nested, indeformable pattern for spiral wound element |
| CN111185097A (en) * | 2019-08-02 | 2020-05-22 | 珠海格力电器股份有限公司 | Roll up formula membrane module, compound filter element group spare and water purification system |
| CN211181977U (en) * | 2019-12-26 | 2020-08-04 | 成都菲奥特科技有限公司 | Integrated multilayer ceramic capacitor tube core |
-
2020
- 2020-09-28 CN CN202011041051.0A patent/CN112159239B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130452A (en) * | 1977-05-10 | 1978-12-19 | Indri John L | Process of constructing a ceramic catalyst support |
| JPH0814294A (en) * | 1994-06-29 | 1996-01-16 | Ishikawajima Harima Heavy Ind Co Ltd | Ceramic spring and its manufacture |
| JP2006168029A (en) * | 2004-12-14 | 2006-06-29 | Matsushita Electric Ind Co Ltd | Method and apparatus for manufacturing ceramic green sheet |
| CN101443093A (en) * | 2006-03-31 | 2009-05-27 | Lg化学株式会社 | Ceramic filter comprising clay and process for preparing thereof |
| US20070251389A1 (en) * | 2006-04-26 | 2007-11-01 | Dina Katsir | Composite inorganic membrane for separation in fluid systems |
| CN101682102A (en) * | 2007-06-06 | 2010-03-24 | 奥斯兰姆有限公司 | Method for the production of a ceramic spiral pulse generator and ceramic spiral pulse generator |
| WO2010044970A1 (en) * | 2008-10-17 | 2010-04-22 | General Electric Company | Spirally wound membrane separator assembly |
| CN101417215A (en) * | 2008-11-24 | 2009-04-29 | 伍协 | Ordered porous ceramic film and preparation method thereof |
| CN102671550A (en) * | 2012-06-01 | 2012-09-19 | 清华大学 | Ceramic membrane tube support and preparation method thereof |
| CN106565258A (en) * | 2016-10-08 | 2017-04-19 | 江苏省陶瓷研究所有限公司 | Winding preparation method of high-porosity porous ceramic pipe |
| CN109789369A (en) * | 2017-03-17 | 2019-05-21 | 住友化学株式会社 | Gas separation membrane element, gas separation membrane module and gas fractionation unit |
| CN110520210A (en) * | 2017-04-20 | 2019-11-29 | 阿夸曼布拉尼斯公司 | Not nested, indeformable pattern for spiral wound element |
| CN207913535U (en) * | 2017-08-24 | 2018-09-28 | 江苏赛瑞迈科新材料有限公司 | Hollow fiber ceramic membrane and its application apparatus |
| CN108218005A (en) * | 2017-12-25 | 2018-06-29 | 合肥万呈鑫陶瓷膜科技有限公司 | A kind of spiral filtration formula ceramic membrane |
| CN109248566A (en) * | 2018-11-28 | 2019-01-22 | 焦国豪 | A kind of hollow plate type ceramic film of helical duct and preparation method thereof |
| CN109908764A (en) * | 2019-03-14 | 2019-06-21 | 景德镇陶瓷大学 | A kind of preparation method of Inorganic Nanofiltration Membranes and its product obtained |
| CN111185097A (en) * | 2019-08-02 | 2020-05-22 | 珠海格力电器股份有限公司 | Roll up formula membrane module, compound filter element group spare and water purification system |
| CN211181977U (en) * | 2019-12-26 | 2020-08-04 | 成都菲奥特科技有限公司 | Integrated multilayer ceramic capacitor tube core |
Non-Patent Citations (2)
| Title |
|---|
| BOUZERARA F 等: "Porous ceramic supports for membranes prepared", 《JOURNAL OF THE EUROPEAN CERAMIC SOCIETY》 * |
| 谢卫萍等: "陶瓷膜串联紫外工艺净化自来水的实验研究", 《环境工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311225A (en) * | 2022-01-18 | 2022-04-12 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane and high-pressure slip casting method thereof |
| CN114311225B (en) * | 2022-01-18 | 2023-11-03 | 重庆兀盾纳米科技有限公司 | Disc type ceramic membrane and high-pressure grouting forming method thereof |
| CN115650724A (en) * | 2022-11-14 | 2023-01-31 | 三祥新材股份有限公司 | Honeycomb ceramic and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112159239B (en) | 2022-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112159239B (en) | Preparation method of roll-type ceramic membrane support and ceramic membrane product thereof | |
| CN101791524B (en) | Asymmetrically-structural ceramic ultrafiltration membrane and preparation method thereof | |
| EP2689828B1 (en) | Honeycomb-shaped ceramic separation-membrane structure | |
| EP2045001A1 (en) | Ceramic filter | |
| US8465648B2 (en) | Ceramic pervaporation membrane and ceramic vapor-permeable membrane | |
| RU2338583C2 (en) | Division module and method of its manufacturing | |
| JP6008943B2 (en) | Honeycomb-shaped ceramic porous body, manufacturing method thereof, and honeycomb-shaped ceramic separation membrane structure | |
| JPWO2013147271A1 (en) | Honeycomb-shaped ceramic porous body, manufacturing method thereof, and honeycomb-shaped ceramic separation membrane structure | |
| EP2832430B1 (en) | Honeycomb shaped porous ceramic body, manufacturing method for same, and honeycomb shaped ceramic separation membrane structure | |
| JP5231304B2 (en) | Alumina porous body and method for producing the same | |
| EP2116347B1 (en) | Method for manufacturing a sealed honeycomb structure | |
| JP2014198308A (en) | Ceramic separation filter and dehydration method | |
| US9321016B2 (en) | Porous body and honeycomb-shaped ceramic separation-membrane structure | |
| WO2013129625A1 (en) | Ceramic separation membrane and dehydration method | |
| CN110655390A (en) | Preparation method of large-size honeycomb heat storage ceramic body | |
| JP2019081141A (en) | Ceramic porous support body for separation membrane | |
| CN106215704B (en) | A kind of combined flat plate ceramic honey comb film and preparation method thereof | |
| WO2014157324A1 (en) | Aluminophosphate-metal oxide joined body and production method for same | |
| US10737982B2 (en) | Monolithic base and production method therefor | |
| CN114053877B (en) | Preparation method of disc-type ceramic membrane support and ceramic membrane product thereof | |
| CN115646213A (en) | Ceramic array type filter element | |
| US20190001280A1 (en) | Monolithic separation membrane structure | |
| CN113385052B (en) | Alumina-based ceramic flat membrane | |
| CN114452830B (en) | Disc type ceramic membrane and one-step forming method thereof | |
| CN111517766A (en) | Method for manufacturing porous ceramic filter plate |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |