CN106242300A - A kind of method utilizing useless domestic glass to expect in vain to prepare building decorative glass ceramics - Google Patents

A kind of method utilizing useless domestic glass to expect in vain to prepare building decorative glass ceramics Download PDF

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Publication number
CN106242300A
CN106242300A CN201610663614.7A CN201610663614A CN106242300A CN 106242300 A CN106242300 A CN 106242300A CN 201610663614 A CN201610663614 A CN 201610663614A CN 106242300 A CN106242300 A CN 106242300A
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glass
vain
crystallization
expect
building decorative
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陆平
潘志成
谢俊
孙国刚
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JIANGSU JIELONG GLASSWARE TECHNOLOGY Co Ltd
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JIANGSU JIELONG GLASSWARE TECHNOLOGY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0063Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

A kind of method utilizing useless domestic glass to expect preparation building decorative glass ceramics in vain, expects as primary raw material in vain with useless domestic glass, by adding appropriate additive, uses sintering process to carry out coring and crystallization, thus prepares building decorative glass ceramics;By weight percentage, during dispensing: useless domestic glass expects 73.00 93.50 parts in vain, 0 6.00 parts of calcium fluoride, calcium oxide 0 8.00 parts, aluminium oxide 0 3.00 parts, potassium nitrate 0 4.00 parts, boric acid 0 3.00 parts, waterglass 1.00 3.00 parts;The technical problem to be solved in the present invention is: do not carry out careful division by kind when utilizing for cullet, cause cullet utilization rate the highest, the problem that reconstituted product quality is unstable, a kind of method expecting in vain to produce building decorative glass ceramics with useless domestic glass is provided, recycling for cullet opens a new way, has preferable prospect, suitably promotes.

Description

A kind of method utilizing useless domestic glass to expect in vain to prepare building decorative glass ceramics
Technical field
The present invention relates to the preparation method of a kind of building decorative glass ceramics, a kind of with the white material in cullet be Primary raw material (> 73wt%), is induced by addition and promotes that the additive of crystallize uses sintering process to prepare the side of devitrified glass Method.
Background technology
Devitrified glass is also referred to as glass ceramics, is a kind of a kind of composite glass being controlled crystallize and obtain, main If making glass surface or internal generation different crystal by suitable heat treatment and making crystal homoepitaxial and obtain.Parent glass Glass and separate out the performance of performance joint effect devitrified glass of crystal, so that devitrified glass can have low bulk, heat-resisting, high-strength The various functions such as degree, high tenacity.Building decorative glass ceramics belongs to a kind of building material, and its physicochemical property and decorative effect are better than Common glass, pottery, lithotome and sheet metal, is widely used in various top-grade building, is described as world today's building The Novel centre material of adnornment industry.The production technology of devitrified glass mainly has two kinds: 1 fusion method.Its technique is: dispensing → found Glass → cast molding → heat treatment crystallize → devitrified glass;2 sintering process.Its technique is: dispensing → fusion cast glass → shrend becomes Glass particle → be dried → screening → loading refractory-material dies → sintering is crystallizated into devitrified glass.The molding work of both technique Skill route and crystallize mode are different, have in common that needs design through composition, then by suitable heat treatment system Degree makes glass can separate out particular kind of crystal at internal or interface, thus obtains special performance.Micro-for architectural decoration For crystal glass, sintering process is ripe due to moulding process, is particularly well-suited to the production of large size plate, is that current building decoration is micro- The main production process of crystal glass.Building nucleated glass is with CaO-Al2O3-SiO2Be glass be main, chemical composition is (wt%): SiO250%-75%;CaO 5%-25%;Al2O33%-15%;Na2O+K2O 2%-15%;B2O31%- 5%;BaO 1%-10%;ZnO 1%-10%;Sb2O31%-2.5%, the crystal of precipitation is mainly wollastonite (CaSiO3), The devitrified glass of different colours can be obtained by adding different colorant.The raw materials used mainly quartz sand of manufacture devitrified glass, Kaolin, Anhydrite, calcite, limestone and some fluxs, clarifier, and a small amount of industrial chemicals is with adjusting component.
Cullet belongs to a kind of city mineral resources, may be used for manufacturing construction material (tapestry brick, coating), pavement material (glass asphalt, glass microballoon), insulation material (foam glass, glass cotton) etc..Give up in developed countries such as Switzerland, Germany, Japan Glass recycles and has the most reached more than 80%, and world average level is also close to 50%.Stone matter metope paving such as Japan 1/3rd The devitrified glass parian plate that patch manufactures with cullet.China is glass production big country and consumption big country, the useless glass of annual generation Glass amount is about 31,000,000 tons, and recovery utilization rate is between 25~30%.And China mainly manufactures building to the utilization of cullet The low value-added products such as material, glass microballoon, glass cotton, main cause is that China's cullet recycling is started late, classification The social mechanism reclaimed falls behind, and renovation process is few.It is low that recycling system unsound directly results in cullet unit take-back cost, Associated production enterprise uses cullet to be that raw material is not so good as newly to purchase mineral or industrial chemicals is calculated, and therefore result in China's cullet profit By the lowest situation of rate.This situation had both destroyed environment, wasted again the regenerated resources of preciousness.Cullet is utilized to produce Building decorative glass ceramics large usage quantity, so a heat subject of always cullet recycling research, and achieved with A lot of achievements, this respect a lot of documents and patent report.As cullet is broken into powder by CN201310437328.5, Use sintering process to prepare crystallizing glass sheet material in the range of 500-110 DEG C, do not add any additive, cullet kind used Not segmentation, it is not indicated that separate out devitrified glass kind.CN201310330983.0 by discarded glass and melting waste slag by 1: The ratio of 1.5 mixes, and then presses forming of wollastonite devitrified glass with mineral or industrial chemicals supplementary not enough or disappearance Oxide, by compound through melted, uses sintering process to prepare devitrified glass after shrend.This patent uses additive to adjust micro- The composition of crystal glass, precipitation crystal is wollastonite, but cullet kind is not the most segmented.CN200410104277.5 is by cullet After pulverizing, add diopside type crystallize accelerator, wollastonite type crystallize accelerator, oligoclase type crystallize accelerator, leucite One or more of type crystallize accelerator, carry out reaction-crystallization in 800~1050 DEG C of insulations 4~10h and sinter at ambient pressure Building microcrystalline glass prepared by type.Cullet is not involved in crystallize, and the crystallize accelerator of addition is actually the micro-of certain specific composition Crystal glass raw material, self crystallize of crystallize accelerator being sintered together with cullet powder under high temperature.CN201110305757.8 Using the waste residue of the low nickel matte of oxygen-enriched side-blowing melting and CRT cullet (wt%) melting waste slag 45% by weight percentage, CRT gives up glass Glass 45%, calcite ash 3-5%, quartz sand 5%, the ratio mixing of additive 0.5-1% (cobalt oxide or nickel oxide), 1530 DEG C fusing, 1120 DEG C of crystallization prepare devitrified glass, for building materials and chemical industry.
Cullet is of a great variety, and if do not segmented directly use, glass ingredient fluctuation is excessive easily causes production technology Control difficulty big, properties of product stability is also had a significant impact.SB/T 10900-2012 implements in JIUYUE in 2013 on the 1st, right Cullet has carried out detailed division.By the difference of cullet kind, it is utilized targetedly, its utilization rate will be improved, Increase product stability.The general designation of glass container that daily cullet refers to discard, glass packaging, Glass Craft etc..Daily The white glass referring to coloured glass content less than 1wt% expected in vain by useless domestic glass.
Summary of the invention
The present invention solves above-mentioned deficiency, when utilizing for cullet, do not carry out careful division by kind, cause useless glass Glass utilization rate is the highest, the problem that reconstituted product quality is unstable, it is provided that a kind of cullet produces building decorative glass ceramics Method, the method particularly expecting in vain with useless domestic glass to produce building decorative glass ceramics, the recycling for cullet is opened up One new way, has preferable sight, suitably promotes.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of Deformation of Glass-Ceramic Plate for Building Decoration material Preparation method, mainly expects as raw material in vain with cullet, by adding appropriate calcium fluoride, calcium oxide, aluminium oxide, potassium nitrate, boron Acid, waterglass are additive.By weight percentage, during dispensing: useless domestic glass expects 73.00-93.50 part, calcium fluoride 0-in vain 6.00 parts, calcium oxide 0-8.00 part, aluminium oxide 0-3.00 part, potassium nitrate 0-4.00 part, boric acid 0-3.00 part, waterglass 1.00- 3.00 part.Use sintering process to carry out coring and crystallization, thus prepare building decorative glass ceramics, specifically include following steps:
(1) pre-treatment: carry out cullet sorting, cleaning and homogenizing;
(2) crushing and screening: use hammer mill that cullet is broken into glass sand;
(3) mixing: weigh each raw material in proportion and put into mix homogeneously in mixer;
(4) die-filling: then compound to be loaded in refractory material or heat resisting steel mould, surface is struck off and is compacted;
(5) sintering crystallization: will be equipped with carrying out coring and crystallization in the mould feeding sintering crystallization furnace of compound;
(6) annealing: the devitrified glass crystalline phase annealing good by sintering crystallization, eliminates stress;
(7) demoulding: the devitrified glass sintered is removed from the molds;
(8) trimming: the burr of devitrified glass crude green body are cut away;
(9) grinding and polishing: the devitrified glass after trimming is polished the finished product being polished to different surfaces glossiness.
What the present invention provided utilizes cullet to expect the method preparing building decorative glass ceramics in vain, is characterized in: to being adopted Cullet raw material be distinctly claimed, decrease the fluctuation requirement to process conditions of cullet material composition.Not to compound Carry out high temperature melting, reduce devitrified glass energy consumption.Meanwhile, the devitrified glass sintering that this invention provides is with crystallization temperature relatively Wollastonite devitrified glass is low, just can separate out at cullet interface with canasite (K at 750-850 DEG C2Na4Ca5Si12O30F4) With a-canasite (K3Na3Ca5Si12O30F4) it is the R of principal crystalline phase2O-CaO-SiO2-F system glass ceramics.This kind of devitrified glass It is sintered together with mother glass, makes final crystallized glass article have the advantage such as high intensity, high-fracture toughness.High-fracture toughness The characteristic that this crystallized glass article is prone to processing can be given, its working (machining) efficiency and yield rate can be improved.
In sum, the present invention by expecting to be broken into the fine particle of suitable particle diameter in vain suitableeer by adding by cullet Amount additive adjusts the cullet composition in interface, and making at a lower temperature to separate out principal crystalline phase between cullet granule is silicon alkali The crystal of calcium stone.The method that the present invention provides, without cullet and additive are carried out high temperature melting, greatly reduces production energy Consumption.The lath-shaped canasite being interspersed separated out, makes devitrified glass have the highest intensity and fracture toughness, is suitable to quickly Processing and not easy fracture.Owing to have employed the white material in cullet, coloring ion content is low, is particularly suitable for preparing white micro-crystals glass Glass.Present invention process is simple, and production cost is low, good product performance, and working (machining) efficiency is high, can be again the high added value circulation of cullet Utilize and a new way is provided, there is good economic benefit and social benefit.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with accompanying drawing:
Fig. 1 is the microscopic appearance figure that the present invention is prepared as embodiment 1;
Fig. 2 is the microscopic appearance figure that the present invention is prepared as embodiment 2;
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise, By other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, each feature is a series of An example in equivalence or similar characteristics.
Embodiment 1:
Useless domestic glass material in vain is utilized to prepare the step of devitrified glass:
(1) cullet selects the waste product of certain emulsion opal glass tableware manufacturing enterprise, for opaque white color, after crushing and screening after complete Portion passes through 60 mesh sieves.
(2) according to the following percentages by weight (wt%) weighs each raw material.Useless domestic glass expects 93.00 parts in vain, calcium fluoride 1.00 Part, calcium oxide 2.00 parts, aluminium oxide 1.00 parts, potassium nitrate 1.00 parts, boric acid 0.50 part, waterglass 1.50 parts.Calcium fluoride, oxidation Calcium, aluminium oxide, potassium nitrate, boric acid iron-holder≤0.1wt%.Wherein calcium fluoride, calcium oxide and aluminium oxide all by 300 mesh, Potassium nitrate and boric acid are all by 200 mesh.Modulus of water glass is 1, is sprayed onto on raw material when mixing after diluting 5 times.
(3) load weighted various raw materials are put in mixer, action of forced stirring 5-15 minute, until the mixing of all raw materials Uniformly.
(4) compound is put on belt conveyor the intermediate bunker being delivered to above mould.60 kilograms are weighed with electronic scale Compound, is uniformly laid in mould.Mould inner wall scribbles kaolin paste or lays one layer of heat-resistant fibrous paper.
(5) mould that will be equipped with compound is sent in roller kilns, rises to 450 DEG C by the heating rate of 2 DEG C/min, then presses The heating rate of 5 DEG C/min rises to 550 DEG C and is incubated 2h, then rises to 950 DEG C by the heating rate of 10 DEG C/min and is incubated 1h, With after annealing.
(6) microcrystal glass plate after annealing is removed from the molds, cuts into 1000 × 1000mm size, then throw Light makes devitrified glass finished product sheet material.
The finished product crystallizing glass sheet material made is prepared as its performance of suitable sample test.Performance parameter is as follows: density 2.51g/cm3;Mohs' hardness 6.5;Rupture strength 60.0MPa;Comprcssive strength 450.0MPa;Glossiness 89 °;Water absorption rate 0.By micro- Crystal glass burnishing surface soaks 30 seconds in the HF acid solution kind that concentration is 5% (v%), by its microcosmic shape of electronics scanning electron microscopic observation Looks, as shown in Figure 1.
Embodiment 2:
Useless domestic glass material in vain is utilized to prepare the step of devitrified glass:
(1) cullet selects the useless emulsion opal glass bottle reclaimed, for opaque white color, through choosing, clean, dry, crush, sieving All by 60 mesh sieves after point.
(2) according to the following percentages by weight (wt%) weighs each raw material.Useless domestic glass expects 89.00 parts in vain, calcium fluoride 3.00 Part, calcium oxide 2.00 parts, aluminium oxide 1.00 parts, potassium nitrate 2.00 parts, boric acid 1.50 parts, waterglass 1.50 parts.Calcium fluoride, oxidation Calcium, aluminium oxide, potassium nitrate, boric acid iron-holder≤0.1wt%.Wherein calcium fluoride, calcium oxide and aluminium oxide all by 300 mesh, Potassium nitrate and boric acid are all by 200 mesh.Modulus of water glass is 1, is sprayed onto on raw material when mixing after diluting 5 times.
(3) load weighted various raw materials are put in mixer, action of forced stirring 5-15 minute, until the mixing of all raw materials Uniformly.
(4) compound is put on belt conveyor the intermediate bunker being delivered to above mould.60 kilograms are weighed with electronic scale Compound, is uniformly laid in mould.Mould inner wall scribbles kaolin paste or lays one layer of heat-resistant fibrous paper.
(5) mould that will be equipped with compound is sent in sintering furnace, rises to 450 DEG C by the heating rate of 2 DEG C/min, then presses The heating rate of 5 DEG C/min rises to 650 DEG C and is incubated 2h, then rises to 1050 DEG C by the heating rate of 10 DEG C/min and is incubated 1h, with after annealing.
(6) microcrystal glass plate after annealing is removed from the molds, cuts into 1000 × 1000mm size, then throw Light makes devitrified glass finished product sheet material.
The finished product crystallizing glass sheet material made is prepared as its performance of suitable sample test.Performance parameter is as follows: density 2.49g/cm3;Mohs' hardness 6.0;Rupture strength 53.0MPa;Comprcssive strength 390.0MPa;Glossiness 85 °;Water absorption rate 0.1%. Devitrified glass burnishing surface is soaked 30 seconds in the HF acid solution kind that concentration is 5% (v%), with its microcosmic of electronics scanning electron microscopic observation Pattern, as shown in Figure 2.
The basic teaching of the present invention is illustrated, for there is the people of the usual technical ability in this area, and many extensions and change Changing will be aobvious and the person of being apparent from.The present invention disclosed due to description can be other spy without departing from present invention spirit or general characteristics Definite form is implemented, and some forms of these particular forms have been noted, so, description embodiments of the disclosure should be regarded as Illustrate rather than restriction.The scope of the present invention is to be defined by appended claim rather than by described above institute circle Fixed, within the scope of falling into being changed and will be included in it of the impartial meaning of claim and scope.

Claims (8)

1. utilize useless domestic glass to expect the method preparing building decorative glass ceramics in vain, it is characterized in that: with useless domestic glass White material is primary raw material, by adding appropriate additive, uses sintering process to carry out coring and crystallization, thus it is micro-to prepare building decoration Crystal glass;Its composition of raw materials is, prepares by following weight ratio: useless domestic glass expects 73.00-93.50 part, calcium fluoride 0-6.00 in vain Part, calcium oxide 0-8.00 part, aluminium oxide 0-3.00 part, potassium nitrate 0-4.00 part, boric acid 0-3.00 part, waterglass 1.00-3.00 Part.
A kind of method utilizing useless domestic glass to expect preparation building decorative glass ceramics in vain the most according to claim 1, its Feature is: described useless domestic glass expects it is clear glass or emulsion opal glass in vain.
A kind of method utilizing useless domestic glass to expect preparation building decorative glass ceramics in vain the most according to claim 1, its Feature is: described additive is calcium fluoride, calcium oxide, aluminium oxide, potassium nitrate, the group of one or more in boric acid and waterglass Close.
A kind of method utilizing useless domestic glass to expect preparation building decorative glass ceramics in vain the most according to claim 1, its Feature is: described sintering process includes coring and two processes of crystallization;In described nucleating course: nucleation temperature is 450 DEG C-650 DEG C, Nucleation time is 0.5h-5h;Described crystallization process: crystallization temperature is 750 DEG C-1050 DEG C, crystallization time is 0.5h-7h.
5. utilize useless domestic glass to expect to prepare the side of building decorative glass ceramics in vain according to any one described in claim 1-4 Method, is characterized in that, described preparation method comprises the following steps:
(1) expect useless domestic glass in vain to carry out to sort, clean, homogenizing;
(2) crushing and screening: use hammer mill to expect in vain to crush by useless domestic glass;
(3) mixing: weigh each raw material in proportion and put into mix homogeneously in mixer;
(4) die-filling: to coat kaolin paste or one layer of heat-resistant fibrous paper of place mat at refractory material or heat resisting steel mould inner wall, then Compound is loaded in refractory material or heat resisting steel mould, use scraper plate struck off on surface and be compacted;
(5) sintering crystallization: will be equipped with compound mould send into sintering crystallization furnace in, the sintering crystallization furnace of employing be shuttle kiln, Tunnel cave or roller kilns;Nucleation temperature is 450 DEG C-650 DEG C, and nucleation time is 0.5h-5h, and crystallization temperature is 750 DEG C-1050 DEG C, crystallization time is 0.5h-7h;Also crystallization process can be directly entered through suitable heating rate, crystallization temperature is 750 DEG C- 1050 DEG C, crystallization time is 0.5h-7h;
(6) annealing: according to die-filling thickness, uses known Annealing Temperature of Glass system to anneal;
(7) demoulding: use machinery or the method for manpower, the devitrified glass sintered is removed from the molds;
(8) trimming: cut away the burr of devitrified glass crude green body with cutting machine;
(9) grinding and polishing: use the special polished machine of devitrified glass or stone polishing machine that the devitrified glass after trimming is prepared as different table The finished product of face glossiness.
A kind of method utilizing useless domestic glass to expect preparation building decorative glass ceramics in vain the most according to claim 5, its Feature is: in described step (2), useless domestic glass expects to be broken for 26-90 mesh glass sand in vain.
A kind of method utilizing useless domestic glass to expect preparation building decorative glass ceramics in vain the most according to claim 5, its Feature is: the thickness loading compound time die-filling in described step (4) is 10mm-25mm.
A kind of method utilizing useless domestic glass to expect preparation building decorative glass ceramics in vain the most according to claim 5, its Feature is: in described step (5), compound is in sintering crystallization temperature-rise period, during by room temperature to 450 DEG C, heating rate≤2 DEG C/ min;When 450 DEG C to 1050 DEG C, heating rate≤10 DEG C/min.
CN201610663614.7A 2016-08-12 2016-08-12 A kind of method utilizing useless domestic glass to expect in vain to prepare building decorative glass ceramics Pending CN106242300A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107311459A (en) * 2017-06-30 2017-11-03 合肥利裕泰玻璃制品有限公司 A kind of devitrified glass and preparation method thereof
CN108083644A (en) * 2017-12-28 2018-05-29 武汉理工大学 A kind of method that devitrified glass is prepared using molten blast furnace slag
CN110117815A (en) * 2019-06-21 2019-08-13 鲁米星特种玻璃科技股份有限公司 A kind of method and device of artificial synthesized large scale fluorophologopite
CN113732955A (en) * 2021-09-03 2021-12-03 维达力实业(赤壁)有限公司 Frosted glass and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104445956A (en) * 2014-12-01 2015-03-25 南昌航空大学 Method for preparing porous glass ceramics by waste glass through low-temperature melting and high temperature foaming
CN105293929A (en) * 2015-10-27 2016-02-03 武汉理工大学 Method for preparing microcrystalline glass grinding balls through molybdenum tailings

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104445956A (en) * 2014-12-01 2015-03-25 南昌航空大学 Method for preparing porous glass ceramics by waste glass through low-temperature melting and high temperature foaming
CN105293929A (en) * 2015-10-27 2016-02-03 武汉理工大学 Method for preparing microcrystalline glass grinding balls through molybdenum tailings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107311459A (en) * 2017-06-30 2017-11-03 合肥利裕泰玻璃制品有限公司 A kind of devitrified glass and preparation method thereof
CN108083644A (en) * 2017-12-28 2018-05-29 武汉理工大学 A kind of method that devitrified glass is prepared using molten blast furnace slag
CN110117815A (en) * 2019-06-21 2019-08-13 鲁米星特种玻璃科技股份有限公司 A kind of method and device of artificial synthesized large scale fluorophologopite
CN113732955A (en) * 2021-09-03 2021-12-03 维达力实业(赤壁)有限公司 Frosted glass and preparation method thereof

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