CN114933413B - Method for preparing ceramic crystal glaze by using steel slag - Google Patents
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- 239000013078 crystal Substances 0.000 title claims abstract description 79
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 62
- 239000010959 steel Substances 0.000 title claims abstract description 62
- 239000002893 slag Substances 0.000 title claims abstract description 60
- 239000000919 ceramic Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 26
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000010304 firing Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000011812 mixed powder Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000001354 calcination Methods 0.000 claims abstract description 7
- 238000000498 ball milling Methods 0.000 claims abstract description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007873 sieving Methods 0.000 claims abstract description 6
- 210000003746 feather Anatomy 0.000 claims abstract description 5
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 7
- 229910001678 gehlenite Inorganic materials 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 229910021532 Calcite Inorganic materials 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 5
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 claims description 5
- 229910000514 dolomite Inorganic materials 0.000 claims description 5
- 239000010459 dolomite Substances 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 239000011575 calcium Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000002241 glass-ceramic Substances 0.000 description 3
- 235000013980 iron oxide Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 231100000701 toxic element Toxicity 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A method for preparing ceramic crystal glaze by utilizing steel slag is characterized in that the steel slag and alumina powder are proportioned, mixed by wet method and dried; heating the dried mixed powder of the steel slag and the aluminum oxide to 1250 ℃, preserving heat for 3 hours, and calcining and synthesizing the mixed powder in the atmosphere; after cooling, ball milling, sieving and drying; wet mixing the calcined synthetic powder and the basic transparent glaze in proportion to prepare glaze; glazing the glaze slurry on a ceramic body, drying, firing the glazed ceramic body, and naturally cooling to obtain the crystal glaze. The crystalline glaze is characterized in that: the size of crystals in the glaze is about 0.5-3 mm, and the crystals are granular, flaky and have a structure similar to that of the micro-end of the feather; in addition, the crystals are colored, and the base glaze also presents color; the base glaze is transparent or semitransparent, crystals on the surface and in the glaze layer can be observed, and the three-dimensional effect is achieved.
Description
Technical Field
The invention provides a method for preparing ceramic crystal glaze by using steel slag, belonging to the technical field of ceramic glaze preparation.
Background
Steel slag is a by-product in the steel industry, and the steel slag yield is about 15wt% of the steel yield. The generation and stacking of a large amount of steel slag inevitably occupies a large amount of land resources and can also pose a potential threat to the surrounding environment and human health. Therefore, how to use steel slag and prepare various materials is one of the research hotspots in the current material industry and environmental protection fields.
The steel slag contains a plurality of Ca, si, al, fe, mg, mn and other chemical elements, particularly Fe and Mn which can develop color and can be used as a colorant; in addition, fe 2 O 3 Or certain compounds of iron have a very strong crystallization ability, and thus, many research papers or patents report the preparation of glass-ceramic products from steel slag. Although the microcrystalline glass product also utilizes the characteristic of stronger crystallization capability of certain components in the steel slag glass, the crystals in the microcrystalline glass are very small, and the volume of the crystals in the crystallized glaze is larger, and some crystals can reach tens of millimeters or even larger. Therefore, there is an essential difference between the preparation process of the crystalline glaze and the preparation process of the glass ceramics, for example, the formulation and the sintering/melting process of the crystalline glaze are completely different, and the preparation method of the crystalline glaze cannot be analogized according to the preparation method of the glass ceramics.
On the basis of years of research, the invention discovers a method for preparing crystals in transparent basic glaze by using steel slag as a raw material, wherein the size of the crystals in the glaze is about 1-5 mm, and the crystals in the crystal morphology are granular, flaky and similar to the micro-end structure of feathers; in addition, the crystals are colored, the crystals are light brown red, brown or brown, and the base glaze is also colored, and the base glaze is light yellow green, light yellow or yellow according to the different formulas or firing temperatures. The base glaze is transparent or semitransparent, so that crystals on the surface and in the glaze layer can be observed, and the three-dimensional effect is achieved. Because the radioactivity of the steel slag is very small, the steel slag meets the standard requirement on the radioactivity of ceramic materials, but a small amount of toxic elements such as chromium ions can be generated in the steel slag (the content of chromium oxide in the steel slag used in the invention is less than 0.2 wt percent). However, after the glaze is formed, trace toxic elements are fixed in the glaze, so that some ceramic glaze materials prepared from steel slag can be used in ceramic products which are not in direct contact with food, such as artistic ceramics, architectural ceramics and sanitary ceramics, and therefore, the crystal glaze prepared by the invention can be used in indoor and outdoor architectural ceramic glaze decorations, also can be used for preparing artistic ceramics, also can be used for glaze decorations of sanitary ceramics, and has wide application range and huge market potential.
Disclosure of Invention
In order to promote the utilization of the solid waste steel slag and realize the recycling of the steel slag and the recycling of the solid waste, the invention provides a simple, reliable, safe, convenient and fast process method for preparing ceramic crystal glaze by utilizing the steel slag without secondary pollution, and the invention has the following preparation process steps and characteristics:
(1) A method for preparing ceramic crystal glaze by utilizing steel slag is characterized in that typical chemical components of the steel slag are as follows (wt%): caO: 43-46; siO (SiO) 2 ：16~19；Al 2 O 3 ：6~8；MgO：5~9；Fe 2 O 3 ：15~20；MnO 2 : 2-3; other: 2.5-3.5; loss rate of burn: 2 to 3.0. The steel slag composition used in the invention is not limited to the above range, and other steel slag compositions are also suitable for the technologyThe invention is characterized in that.
(2) A method for preparing ceramic crystal glaze by utilizing steel slag is characterized in that the steel slag and alumina powder in the step (1) are mixed according to the mass ratio of 7:3-5:5, wet mixed and then dried for 2 hours at 120 ℃. Wherein the fineness of the steel slag powder is in the range of 200-500 meshes; the fineness of the alumina powder is in the range of 100-200 meshes.
(3) A method for preparing ceramic crystal glaze by utilizing steel slag is characterized in that the mixed powder of the dried steel slag and aluminum oxide in the step (2) is heated to 1250 ℃, and the mixed powder is kept at the temperature for 3 hours and is calcined and synthesized in the atmosphere. After cooling, ball milling was carried out for 2 hours with a ball mill, then sieving with a 120 mesh sieve, and finally drying at 120℃for 2 hours. XRD analysis shows that the main crystal phase of the calcined and synthesized powder is gehlenite and a small amount of calcium ferrite.
(4) A method for preparing ceramic crystal glaze by utilizing steel slag is characterized in that the calcined synthetic powder and basic transparent glaze in the step (3) are subjected to wet mixing for 10-30 minutes according to the mass ratio of 5:95-15:85, then the specific gravity of slurry is regulated, and the specific gravity of the slurry is controlled to be 1.65-1.75.
A method for preparing ceramic crystal glaze by utilizing steel slag is characterized in that the formula of the transparent base glaze in the step (4) is composed of the following components in percentage by weight: potassium feldspar: 20-30, quartz: 25-30, kaolin: 2-8, dolomite: 3-7, frit: 5-12, calcite: 10-16, zinc oxide: 3-6.
(5) A method for preparing ceramic crystal glaze by utilizing steel slag, which is characterized in that the slurry in the step (4) is glazed on a ceramic blank, and the thickness of the glaze is between 0.5 and 1.5 and mm; and (3) drying at 50 ℃ for 5 days, heating the glazed ceramic blank to 1150-1250 ℃, preserving heat for 2 hours, firing, and naturally cooling to obtain the glaze containing crystals, namely the crystal glaze.
(6) A method for preparing ceramic crystal glaze by utilizing steel slag, which is characterized in that the crystal glaze according to the step (5) is characterized in that: the size of crystals in the glaze is about 0.5-3 mm, and some crystals with the crystal morphology are granular, and some crystals are flaky and similar to the tail end structure of the feather; in addition, the crystals are colored, the crystals are light brown red, brown or brown, and the base glaze is also colored, and the base glaze is light yellow green, light yellow or yellow according to the different formulas or firing temperatures. The base glaze is transparent or semitransparent, so that crystals on the surface and in the glaze layer can be observed, and the three-dimensional effect is achieved.
Principle and part of the advantages of the invention
1. Due to Ca in the steel slag 2 SiO 4 ，Ca 3 SiO 5 And the crystalline phase, and the melting point is higher, which is unfavorable for melting. The purpose of the alumina is to react these substances or their hydrolysates with alumina to form gehlenite with a lower melting point, which is advantageous for melting the glaze and also avoids the influence of these substances on the fluidity of the glaze slip after hydrolysis.
2. In the calcining synthesis process, a part of elemental iron or carbide thereof is oxidized into ferric oxide, so that the influence of the oxidation process on the later glaze quality is avoided.
3. In the process of sintering and melting, the glaze contains a certain amount of iron oxide or ferrite, but the initial particle sizes are not completely the same, so that smaller grains are completely melted first in the process of melting, larger grains are only partially melted, when the melting process reaches a certain degree, large grains which are not melted become crystal cores, namely crystal nuclei, the crystal nuclei grow continuously, and crystals are finally formed in the glaze, and are iron oxide or iron-containing oxide. The crystalline glaze prepared by the technology is different from the traditional crystalline glaze firing system, namely, the temperature reduction, heat preservation and crystallization are not needed after the firing temperature.
4. Since iron ions themselves have color, iron oxides or iron-containing oxides also develop color, resulting in color development of crystals. The color change depends on the amount of steel slag and the sintering temperature and the size of crystals.
5. Because the components of the steel slag are complex, and other elements such as Mn and the like are added besides Fe, the elements can not completely separate out crystals at the melting temperature, so that the basic glaze (glaze layer matrix) can be color. The base glaze has different colors due to different amounts of steel slag in the glaze (different solubility of chromogenic ions) or different firing temperatures.
Detailed Description
Example 1
The chemical components of the steel slag are as follows (wt%): caO:45.1; siO (SiO) 2 ：16.6；Al 2 O 3 ：6.5；MgO：7.1；Fe 2 O 3 ：16.7；MnO 2 :2.6; other: 2.5 burn-out rate: 2.9; mixing the steel slag and the alumina powder according to the mass ratio of 7:3 by a wet method, and then drying for 2 hours at 120 ℃; wherein the fineness of the steel slag powder is less than 500 meshes; the fineness of the alumina powder is 100 mesh; heating the dried mixed powder of steel slag and aluminum oxide to 1250 ℃, preserving heat for 3 hours, and calcining and synthesizing under the atmosphere. After cooling, ball milling for 2 hours by a ball mill, sieving by a 120-mesh sieve, and finally drying for 2 hours at 120 ℃; XRD analysis shows that the main crystal phase of the calcined and synthesized powder is gehlenite and a small amount of calcium ferrite. Wet mixing the calcined synthetic powder and the basic transparent glaze according to the mass ratio of 5:95 for 30 minutes, and then adjusting the specific gravity of the slurry, and controlling the specific gravity of the slurry to be 1.71. Wherein, the formula of the transparent base glaze comprises the following components (wt%): potassium feldspar: 32, quartz: 27, kaolin: 3.5, dolomite: 6.5, frit: 6, calcite: 15, zinc oxide: 5, a step of;
glazing the prepared glaze slurry on a ceramic body, wherein the thickness of the glaze is 0.7-mm; drying at 50 ℃ for 5 days, heating the glazed ceramic blank to 1200 ℃ and preserving heat for 2 hours for firing, and naturally cooling to obtain a glaze surface containing crystals, namely obtaining the crystal glaze; the size of crystals in the glaze is about 0.5-2 mm, most of the crystals are flaky, and the flaky crystals are reddish brown and have a structure similar to that of the tail ends of feathers; in addition, a small amount of granular crystals are formed, and the granular crystals are brown; the basic glaze is light yellow green and semitransparent, crystals on the surface and inside of the glaze layer can be observed, and the three-dimensional effect is achieved.
Example 2
The chemical components of the steel slag are as follows (wt%): caO:43.6; siO (SiO) 2 ：17.1；Al 2 O 3 ：6.9；MgO：7.5；Fe 2 O 3 ：18.1；MnO 2 :2.1; other: 2.2; loss rate of burn: 2.4, proportioning and mixing the steel slag and the alumina powder according to the mass ratio of 5:5 by a wet method, and then drying for 2 hours at 120 ℃; wherein the fineness of the steel slag powder is less than 300 meshes; the fineness of the alumina powder is 200 mesh; heating the dried mixed powder of steel slag and aluminum oxide to 1250 ℃, preserving heat for 3 hours, and calcining and synthesizing under the atmosphere. After cooling, ball milling for 2 hours by a ball mill, sieving by a 120-mesh sieve, and finally drying for 2 hours at 120 ℃; XRD analysis shows that the main crystal phase of the calcined and synthesized powder is gehlenite and a small amount of calcium ferrite. Wet mixing the calcined synthetic powder and the basic transparent glaze according to the mass ratio of 10:90 for 30 minutes, and then adjusting the specific gravity of the slurry, and controlling the specific gravity of the slurry to be 1.69. Wherein, the formula of the transparent base glaze comprises the following components (wt%): potassium feldspar: 35, quartz: 25, kaolin: 3.0, dolomite: 7, frit: 5, calcite: 16, zinc oxide: 5, a step of; glazing the prepared glaze slurry on a ceramic blank, wherein the thickness of the glaze is 1.0 mm; drying at 50 ℃ for 5 days, heating the glazed ceramic body to 1250 ℃, preserving heat for 2 hours, firing, and naturally cooling to obtain a glaze surface containing crystals, namely, obtaining the crystal glaze; the size of crystals in the glaze is about 0.5-2 mm, most of the crystals are granular, the granular crystals are brown, the base glaze is yellow, the base glaze is semitransparent, and crystals on the surface and in the glaze layer can be observed, so that the three-dimensional effect is achieved.
Example 3
The chemical components of the steel slag are as follows (wt%): caO:43.6; siO (SiO) 2 ：17.1；Al 2 O 3 ：6.9；MgO：7.5；Fe 2 O 3 ：18.1；MnO 2 :2.1; other: 2.2; loss rate of burn: 2.4, handleMixing steel slag and alumina powder according to the mass ratio of 7:3, and then drying for 2 hours at 120 ℃; wherein the fineness of the steel slag powder is less than 300 meshes; the fineness of the alumina powder is 200 mesh; heating the dried mixed powder of steel slag and aluminum oxide to 1250 ℃, preserving heat for 3 hours, and calcining and synthesizing under the atmosphere. After cooling, ball milling for 2 hours by a ball mill, sieving by a 120-mesh sieve, and finally drying for 2 hours at 120 ℃; XRD analysis shows that the main crystal phase of the calcined and synthesized powder is gehlenite and a small amount of calcium ferrite. Wet mixing the calcined synthetic powder and the basic transparent glaze according to the mass ratio of 15:85 for 30 minutes, and then adjusting the specific gravity of the slurry, and controlling the specific gravity of the slurry to be 1.68. Wherein, the formula of the transparent base glaze comprises the following components (wt%): potassium feldspar: 35, quartz: 20, kaolin: 5.0, dolomite: 7, frit: 12, calcite: 16, zinc oxide: 5, a step of; glazing the prepared glaze slurry on a ceramic blank, wherein the thickness of the glaze is 0.6 mm; drying at 50 ℃ for 5 days, heating the glazed ceramic blank to 1150 ℃ and preserving heat for 2 hours for firing, and naturally cooling to obtain a glaze surface containing crystals, namely obtaining the crystal glaze; the size of crystals in the glaze is about 0.5-3 mm, the crystal morphology is most granular, the granular crystals are dark brown, the base glaze is yellow, and the base glaze is semitransparent.
Claims (5)
1. A method for preparing ceramic crystal glaze by utilizing steel slag is characterized in that the steel slag comprises the following chemical components: caO: 43-46 wt%; siO (SiO) 2 ：16~19 wt%；Al 2 O 3 ：6~8 wt%；MgO：5~9 wt%；Fe 2 O 3 ：15~20 wt%；MnO 2 : 2-3 wt%; other: 2.5-3.5 wt%; loss rate of burn: 2-3.0 wt%; mixing the steel slag and the alumina powder according to the mass ratio of 7:3-5:5 by a wet method, and then drying for 2 hours at 120 ℃; wherein the fineness of the steel slag powder is in the range of 200-500 meshes; heating the dried mixed powder of steel slag and aluminum oxide to 1250 ℃, preserving heat for 3 hours, and calcining and synthesizing in the atmosphere; after the cooling, the mixture is cooled down,ball milling for 2 hours by a ball mill, sieving by a 120-mesh sieve, and finally drying for 2 hours at 120 ℃; the main crystal phase of the powder after calcination synthesis is gehlenite, and a small amount of calcium ferrite is added.
2. The method for preparing ceramic crystal glaze by utilizing steel slag according to claim 1, which is characterized in that the calcined synthetic powder and the basic transparent glaze are ball-milled and mixed for 10-30 minutes according to the mass ratio of 5:95-15:85, then the specific gravity of slurry is regulated, and the specific gravity of the slurry is controlled to be 1.65-1.75.
3. The method for preparing ceramic crystal glaze by utilizing steel slag as claimed in claim 2, wherein the formula of the basic transparent glaze comprises the following components: potassium feldspar: 20-30 wt percent, quartz: 25-30 wt%, kaolin: 2-8 wt%, dolomite: 3-7 wt%, frit: 5-12 wt%, calcite: 10-16 percent wt percent, zinc oxide: 3-6% wt%.
4. The method for preparing ceramic crystal glaze by utilizing steel slag as claimed in claim 2, wherein the slurry is glazed on a ceramic body, and the thickness of the glaze is between 0.5 and 1.5 and mm; and (3) drying at 50 ℃ for 5 days, heating the glazed ceramic blank to 1150-1250 ℃, preserving heat for 2 hours, firing, and naturally cooling to obtain the glaze containing crystals, namely the crystal glaze.
5. A method for producing a ceramic crystalline glaze using steel slag as claimed in any one of claims 1 to 4, characterized in that the crystalline glaze is characterized in that: the size of crystals in the glaze is 0.5-3 mm, the crystals are granular, and the crystals are flaky and have a structure similar to that of the tail ends of feathers; the crystals appear light brown red, brown or tan.
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| JP2003238238A (en) * | 2002-02-12 | 2003-08-27 | Kamiya Gakuen | Ceramics sintered compact, glaze, and manufacturing method for ceramics sintered compact |
| CN105884197A (en) * | 2016-04-07 | 2016-08-24 | 陕西科技大学 | Method for preparing series iron-series colored glaze from iron-ore slag and decoration method based on colored glaze |
| CN106277789A (en) * | 2015-05-29 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of method utilizing steel slag preparation pottery glaze |
| CN107352803A (en) * | 2017-07-25 | 2017-11-17 | 平顶山学院 | A kind of ceramic glaze, preparation method and its application process |
| CN113943103A (en) * | 2021-11-05 | 2022-01-18 | 福建科福材料有限公司 | Macarons colored glaze for household porcelain and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003238238A (en) * | 2002-02-12 | 2003-08-27 | Kamiya Gakuen | Ceramics sintered compact, glaze, and manufacturing method for ceramics sintered compact |
| CN106277789A (en) * | 2015-05-29 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of method utilizing steel slag preparation pottery glaze |
| CN105884197A (en) * | 2016-04-07 | 2016-08-24 | 陕西科技大学 | Method for preparing series iron-series colored glaze from iron-ore slag and decoration method based on colored glaze |
| CN107352803A (en) * | 2017-07-25 | 2017-11-17 | 平顶山学院 | A kind of ceramic glaze, preparation method and its application process |
| CN113943103A (en) * | 2021-11-05 | 2022-01-18 | 福建科福材料有限公司 | Macarons colored glaze for household porcelain and preparation method thereof |
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