CN106045488A - Method for preparing inorganic ceramic membrane separation device from coal gangue - Google Patents

Method for preparing inorganic ceramic membrane separation device from coal gangue Download PDF

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Publication number
CN106045488A
CN106045488A CN201610393985.8A CN201610393985A CN106045488A CN 106045488 A CN106045488 A CN 106045488A CN 201610393985 A CN201610393985 A CN 201610393985A CN 106045488 A CN106045488 A CN 106045488A
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gangue
coal
coal gangue
ceramic membrane
pickling
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田蒙奎
陶文亮
秦建良
张�杰
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Guizhou University
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Guizhou University
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06—Tubular membrane modules
    • B01D63/061—Manufacturing thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/04—Tubular membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/02—Inorganic material
    • B01D71/024—Oxides
    • B01D71/025—Aluminium oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/02—Inorganic material
    • B01D71/024—Oxides
    • B01D71/027—Silicium oxide
    • C—CHEMISTRY; METALLURGY
    • 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
    • C04B35/16—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 silicates other than clay
    • C04B35/18—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 silicates other than clay rich in aluminium oxide
    • C04B35/185—Mullite 3Al2O3-2SiO2
    • 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
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/15—Use of additives
    • B01D2323/18—Pore-control agents or pore formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/24—Mechanical properties, e.g. strength
    • 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 method for preparing an inorganic ceramic membrane separation device from coal gangue. The process for removing impurities in the coal gangue through pickling comprises steps as follows: A, the coal gangue is mechanically crushed by a jaw crusher or a disc mill and subjected to ball milling by a ball mill; B, partial impurities are removed through pre-sintering at 400 DEG C; C, hydrochloric acid is slowly added to a beaker containing the pre-sintered coal gangue; D, the mixture is poured into a round-bottom flask after a reaction is stabilized and reacts for 2 h in an assembled pickling device; E, suction filtration is performed while the mixture is hot; F, repeated suction filtration is performed with clear water; G, a last-time filtrate is taken for measurement of PH until the filtrate is neutral and does not change color after an KSCN solution is added; H, the mixture is dried for use. The process for manufacturing a ceramic membrane comprises steps as follows: a, an aid is added to the pickled coal gangue for ball milling and mixing; b, decaying and pugging are performed; c, extrusion molding is performed; d, drying is performed; e, high-temperature sintering is performed. According to the method, component characteristics of the coal gangue are utilized, and a composite ceramic membrane tube with Al2O3 and SiO2 being the main components is developed and is used for high-temperature gas-solid separation in fields of industrial coal-fired boilers, metallurgy, building materials and the like.

Description

A kind of method utilizing gangue to prepare inorganic ceramic film resolution element
Technical field
The invention belongs to environmental technology field, utilize gangue to prepare inorganic ceramic film resolution element more particularly to one Method.
Background technology
Gangue is black rock low with a kind of phosphorus content of coal association in coalification course, is in coal mining and washing During produce solid waste.Gangue except containing a certain amount of can be in addition to fire coal, SiO2And Al2O3Content 50 More than %, additionally possibly together with a certain amount of CaO, MgO, Fe2O3、K2O and Na2The metal-oxides such as O, are one and comprise many Planting the mixture of mineral, it includes adopting from top board, base plate and interlayer in the digging gangue during tunnelling, mining process That chooses during the spoil gone out and coal washing washes spoil.
At present the discharge refuse amount in colliery accounts for the 8%～20% of coal mining amount, and the most about 12%, it has also become China tires out Meter accumulating amount and the most trade waste of occupied ground.Along with the continuous extension of coal production, the generation amount of gangue and day All increasing, annual gangue at least increases by 1.8 hundred million tons, the gangue accumulated over the years more than 4,500,000,000 tons, take up an area 300,000 mu with On, and still continuing increase, hillock almost becomes the mark of China's coal-mine.Gangue is various as the solid, liquid, gas three disasters " industrial waste ", its long-term stacking accounts for has pressed substantial amounts of soil, and pollutes the water source of mining area periphery, soil and surrounding Air, the ecological environment in heavy damage mining area and ecoscape.Therefore the recycling to gangue, turns waste into wealth, it is achieved Coal mining, the cleaning of washing produce and show urgent day.It is enriched with especially for these coal resources of Guizhou, and promulgated by the State Council 2 In literary composition [2012], expliciting the position is that important energy supply base is forged in Guizhou, greatly develops Coal Chemical Industry, the showing of phosphorous chemical industry Under real background, exploitation gangue resource and the utilization more significance of high added value.
Owing to gangue is to have certain calorific value (2090KJ/kg-12250KJ/kg) and with Al2O3(52～65%), SiO2(16 ～36%) it is main chemical compositions, mineralogical composition is kaolinite, illite, montmorillonite, boehmite, quartz, calcite, Huang Tie Ore deposit and carbonaceous composition composite mineral matter, currently the recycling to gangue mainly include calorific value utilize (coal gangue power generation, Multifuel combustion and making coal gangue brick etc.), mineral utilize (manufacturing cement by using gangue, building block), chemical utilization (aluminium polychlorid, molecule Sieve, white carbon etc.) and fill approach such as supporting utilization.Country's " gangue is combined platform and utilized technical policy main points " points out, gangue Comprehensive utilization be utilized as emphasis with big argument, by coal gangue power generation, gangue building materials and goods, reclaim backfill and coal gangue hill without The big argument such as evilization process utilizes gangue technology as main direction, actively develops high-tech content, high added value simultaneously Technology of Comprehensive Utilization of Coal Gangue and product.
Membrance separation is to occur in 20 beginnings of the century, the separation technology emerged rapidly after the sixties in last century.Membrance separation Technology, owing to having separation, concentration, purification and refined function concurrently, has again efficiently, energy-saving and environmental protection, molecular level filter and filtered The features such as journey is simple, easily controllable.It is widely used at present wastewater reusing treatment, desalinization, brackish water desalination, ultrapure The industries such as water purification, create huge economic benefit and social benefit, it has also become in current separation science most important means it One.
Membrane separating process, according to the aperture of film itself and separation process feature, is divided into microfiltration, ultrafiltration, nanofiltration and reverse osmosis etc. Process, is divided into organic film material and inorganic material film according to membrane material simultaneously.Current conventional membrane material be mostly natural and The macromolecular compound of synthesis, such as acetate fiber, cellulose nitrate, polysulfones, polyacrylonitrile, polyimides, polyamide, polyalkenes and Fluoropolymers etc., are respectively arranged with pluses and minuses, but the hard to bear high temperature of most of organic polymer material and corrosion, limit organic material The material membrane separation technique application in a lot of fields.Inoranic membrane (being also porous ceramics, ceramic membrane) isolation technics is membrane separation technique In one, wherein inoranic membrane is to be processed by inorganic material, is a kind of solid film, including oxide, metal and glass etc. Material.Inoranic membrane based on inorganic material science has the advantage that organic polymer separation film is incomparable, such as aperture Narrowly distributing, separation efficiency are high, filter effect is stable；Chemical stability is good, acid and alkali resistance, organic solvent；High temperature resistant, available steam Recoil regeneration and high-temp sterilizing；Resisting microbial contamination ability is strong, and mechanical strength is big, can high pressure backwash, regeneration capacity is strong； Produce without leachable, secondary pollution will not be produced, separation of material will not be had a negative impact；Separation process is simple, and energy consumption is low, Operation operating simplicity, film is long for service life.
Just because of the advantage of inoranic membrane isolation technics, more come in the gas solid separation field in a lot of fields, particularly high temperature More come into one's own.Inorganic application of membrane separation technology in the field that high-temperature gas-solid separates, on the one hand efficient except developing Outside dedusting or capture device, it is exactly on the other hand that active development is based on new material, new construction, the membrance separation element of new technology. Current conventional high temperature inorganic ceramic membrane element is mainly with high-purity Al2O3, SiC, ZrO2For aggregate, C powder, sawdust and its His Organic substance is pore creating material, by high temperature sintering molding.The ceramic membrane element of these raw material production is due to former by high pure oxide The price limit of material, is generally prepared as the highest, and pore structure is difficult to regulate and control simultaneously.Therefore, exploitation new material, the pottery of new technology The preparation of membrane component is significant for the Technical Economy and popularization and application improving inoranic membrane isolation technics.
Ren Xiangjun etc. use flyash to be raw material, make mullite pottery through processing sintering at a temperature of 1250 DEG C Porcelain, properties has reached the requirement of porous ceramic film.And gangue also contains the composition in flyash, use coal for us Spoil is that the firing porous ceramic membrane materials of raw material provides reference.
Currently manufactured porous ceramic film resolution element uses pure SiO2、Al2O3, SiC and ZrO2For raw material, first this A little cost of material are of a relatively high, and need higher temperature could prepare porous ceramics membrance separation during sintering, combine Close the impact of above two factor, manufacture the relatively costly of porous ceramic film resolution element.And use gangue be raw material first Gangue waste product recycling can be realized, while reducing manufacturing cost, it is also possible to reduce the gangue dirt to environment Dye.
Summary of the invention
It is an object of the invention to provide a kind of method utilizing gangue to prepare inorganic ceramic film resolution element, the method Utilize the constituent feature of gangue, exploitation preparation Al2O3/ SiO2The porous ceramic film resolution element of mixed type, this film divides Can be used for the separation and recovery of PM2.5 fine particle from element, can be widely applied to the necks such as coal-burning boiler, building materials, metallurgy, Coal Chemical Industry Dust treatment in territory, thus qualified discharge.Mainly solving the technical problems that how to control Al in gangue2O3/ SiO2's Ratio between composition, binding agent, pore creating material and be pressed into the technological parameter of base, sinter molding, thus obtain intended hole Road structure, aperture, porosity and mechanical strength, meet various occasion and separate particular separation object efficiently and retain efficiency.
The purpose of the present invention and solve its technical problem underlying and realize by the following technical solutions: one utilizes coal Spoil prepares the method for inorganic ceramic film resolution element, removes impurity and manufacture ceramic membrane in gangue, wherein, acid including pickling Wash away except in gangue, impurity is following steps:
A, gangue use jaw crusher or disc grinder carry out Mechanical Crushing, ball mill ball milling,
B, pre-burning 400 DEG C, removes partial impurities,
C, it is slowly added to hydrochloric acid to contain in the beaker of pre-burned coal gangue,
Pour into after D, reacting balance in round-bottomed flask and be assembled into acid dip pickle reaction 2h,
E, while hot sucking filtration,
F, with cleaning sucking filtration repeatedly,
G, take last filtrate side PH until in neutral and add KSCN solution and change without color,
H, dry for standby；
The step manufacturing ceramic membrane is:
A, by gangue after pickling, add auxiliary agent ball mill mixing,
B, old, pugging,
C, extrusion molding,
D, be dried,
E, high temperature sintering；
Described step C, add after 100g gangue pre-burning 84ml 38% hydrochloric acid carry out pickling；
Described step a, making its alumina silica ratio after adding auxiliary agent aluminium oxide in raw material is 0.5, and particle diameter is selected by 160 mesh, adds 10% Pore creating material；
Described step e, is raised to 1050 DEG C with the programming rate of 3 DEG C/min, at such a temperature heat preservation sintering 2 hours.
Described step G, reclaims hydrochloric acid in filtrate and returns for step C.
A kind of above-mentioned method utilizing gangue to prepare inorganic ceramic film resolution element, wherein: described gangue selects The gangue of Guizhou Province's Lupanshui City jade house coal industry is as raw material.
The application of a kind of above-mentioned method utilizing gangue to prepare inorganic ceramic film resolution element: the examination that the method draws Sample Main Ingredients and Appearance is mullite, and comprcssive strength reaches 9.34MPa, and more than 8MPa, porosity reaches 42%, can prepare inorganic porous Ceramic membrane tubulose, extension candle formula, multi-channel type, panel element, the gas-solid in the fields such as industry coal-boiler, metallurgy, building materials Separate, the improvement of particularly PM2.5.
The present invention compared with prior art has clear advantage and beneficial effect.From above technical scheme, this Bright for current conventional pure Al2O3,SiC, ZrO2, SiO2High the lacking of inorganic ceramic film pipe manufacturing cost height, energy consumption Point, the present invention utilizes the composition characteristic of large waste resource gangue, exploitation to be mainly composed of Al2O3/ SiO2Compound pottery Porcelain membrane tube, the high-temperature gas-solid for fields such as coal-burned industrial boiler, metallurgy, building materials separates, and on the one hand achieves gangue and discards The resource of thing and the utilization of high added value, on the other hand extension enriches material choice and the preparation side of inorganic ceramic film preparation Method, has bigger market potential and economy, environmental benefit.
Accompanying drawing explanation
Fig. 1 is that the flow chart of impurity in gangue is removed in the pickling of the present invention,
Fig. 2 is the flow chart manufacturing ceramic membrane of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, gangue is utilized to prepare inorganic ceramic the one proposed according to the present invention Method detailed description of the invention, structure, feature and effect thereof of membrance separation element, after describing in detail such as.
Seeing Fig. 1-2, a kind of method utilizing gangue to prepare inorganic ceramic film resolution element, the raw material of employing is mainly adopted From multiple collieries in Guizhou Province, by using the machinery such as jaw crusher, disc grinder to crush, X fluorescence spectrum is utilized to divide Analyse its composition, eventually through multi-level omnibearing relative analysis, select the bastard coal masonry of Guizhou Province's Lupanshui City jade house coal industry For raw material.
In order to effectively utilize gangue as the raw material preparing porous ceramics, it is necessary to gangue is carried out pretreatment, document Display uses the hydrochloric acid of high concentration can remove the part of the metal oxide in gangue, utilizes different amounts of hydrochloric acid to carry out acid Wash, the raw material after pickling is added a certain amount of additive, through pinching mud, old, pugging, extruded base substrate of making, use Different temperature is sintered, and contrasts the multinomial performances such as its shrinkage factor, porosity, comprcssive strength, finally draws when 100g bastard coal Add after the hydrochloric acid of 84ml38% carries out pickling after stone pre-burning, add the base substrate that a certain amount of additive prepares, with 3 DEG C/min's Programming rate is raised to 1050 DEG C, at such a temperature heat preservation sintering 2 hours, and the sample Main Ingredients and Appearance finally obtained is mullite, anti- Compressive Strength reaches 9.34MPa, and more than 8MPa (GB/T16533-1996 " porous ceramics product technology general conditions "), porosity reaches To 42%, can be as porous ceramic film support materials'use.
In order to further the proportioning of raw material is optimized, determine aluminium oxide addition optimal in raw material, determine optimal Particle diameter select, determine optimal pore creating material addition.Inventor is proved by substantial amounts of experiment, finally determines in raw material Making its alumina silica ratio after adding aluminium oxide is 0.5, and particle diameter is selected by 160 mesh, when adding the pore creating material of 10%, prepared ceramic membrane Product properties is optimal, and its lateral shrinkage is 6.12%, and longitudinal contraction rate is 5.97%, and porosity is 41.7%, and comprcssive strength is up to 20.7MPa, meets the performance requirement of porous ceramics.
The present invention is gangue initially with raw material, compared with the raw material used now, can be cost-effective, and produce The biggest environmental benefit；Secondly, in the removal gangue that the present invention uses, the method for impurity does not find in pertinent literature, belongs to In pioneering；The technology path being again with gangue manufacture ceramic membrane separation element is that inventor obtains through great many of experiments, This technology path is while reducing cost to greatest extent, it is ensured that the properties of ceramic membrane separation element meets relevant wanting Ask.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, appoints What is without departing from technical solution of the present invention content, any is simply repaiied according to what above example made by the technical spirit of the present invention Change, equivalent variations and modification, all still fall within the range of technical solution of the present invention.

Claims (4)

1. one kind utilizes the method that gangue prepares inorganic ceramic film resolution element, it is characterised in that: include that bastard coal is removed in pickling Impurity and manufacture ceramic membrane in stone, wherein, pickling is removed the step of impurity in gangue and is:
A, gangue use jaw crusher or disc grinder carry out Mechanical Crushing, ball mill ball milling,
B, pre-burning 400 DEG C, removes partial impurities,
C, it is slowly added to hydrochloric acid to contain in the beaker of pre-burned coal gangue,
Pour into after D, reacting balance in round-bottomed flask and be assembled into acid dip pickle reaction 2h,
E, while hot sucking filtration,
F, with cleaning sucking filtration repeatedly,
G, take last filtrate side PH until in neutral and add KSCN solution and change without color,
H, dry for standby；
The step manufacturing ceramic membrane is:
A, by gangue after pickling, add auxiliary agent ball mill mixing,
B, old, pugging,
C, extrusion molding,
D, be dried,
E, high temperature sintering；
Described step C, add after 100g gangue pre-burning 84ml 38% hydrochloric acid carry out pickling；
Described step a, making its alumina silica ratio after adding auxiliary agent aluminium oxide in raw material is 0.5, and particle diameter is selected by 160 mesh, adds 10% Pore creating material；
Described step e, is raised to 1050 DEG C with the programming rate of 3 DEG C/min, at such a temperature heat preservation sintering 2 hours.
A kind of method utilizing gangue to prepare inorganic ceramic film resolution element, it is characterised in that: Described step G, reclaims hydrochloric acid in filtrate and returns for step C.
A kind of method utilizing gangue to prepare inorganic ceramic film resolution element, it is characterised in that: Described gangue selects the gangue of Guizhou Province's Lupanshui City jade house coal industry as raw material.
The application of a kind of method utilizing gangue to prepare inorganic ceramic film resolution element, it is special Levy and be: the sample Main Ingredients and Appearance that the method draws is mullite, and comprcssive strength reaches 9.34MPa, and more than 8MPa, porosity reaches To 42%, inorganic porous ceramic membrane tube shape can be prepared, hang candle formula, multi-channel type, panel element, for industry coal-boiler, smelting Gas solid separation in gold, building materials field, the improvement of particularly PM2.5.
CN201610393985.8A 2016-06-07 2016-06-07 Method for preparing inorganic ceramic membrane separation device from coal gangue Pending CN106045488A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106904955A (en) * 2017-01-17 2017-06-30 安徽理工大学 A kind of method with gangue as raw material molten-salt growth method low temperature mullite synthesizing powder
CN115925443A (en) * 2022-12-30 2023-04-07 中南大学 Solid waste base ceramic membrane support raw material with wide firing range and solid waste base ceramic membrane support

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1843595A (en) * 2005-04-07 2006-10-11 北京航空航天大学 Preparation of porous membrane by utilizing industrial waste residue
CN105254323A (en) * 2015-11-28 2016-01-20 郑州大学 Micropore alumina and mullite ceramic separation film supporting body and preparation method thereof
CN105272189A (en) * 2015-11-28 2016-01-27 郑州大学 Microporous mullite ceramic separation membrane support and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1843595A (en) * 2005-04-07 2006-10-11 北京航空航天大学 Preparation of porous membrane by utilizing industrial waste residue
CN105254323A (en) * 2015-11-28 2016-01-20 郑州大学 Micropore alumina and mullite ceramic separation film supporting body and preparation method thereof
CN105272189A (en) * 2015-11-28 2016-01-27 郑州大学 Microporous mullite ceramic separation membrane support and preparation method thereof

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* Cited by examiner, † Cited by third party
Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106904955A (en) * 2017-01-17 2017-06-30 安徽理工大学 A kind of method with gangue as raw material molten-salt growth method low temperature mullite synthesizing powder
CN106904955B (en) * 2017-01-17 2020-04-03 安徽理工大学 Method for synthesizing mullite powder at low temperature by using coal gangue as raw material through molten salt growth method
CN115925443A (en) * 2022-12-30 2023-04-07 中南大学 Solid waste base ceramic membrane support raw material with wide firing range and solid waste base ceramic membrane support
CN115925443B (en) * 2022-12-30 2023-07-04 中南大学 Solid waste-based ceramic membrane support raw material with wide firing range and solid waste-based ceramic membrane support

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