CN110526579B - Method for preparing glaze by adopting gold ore associated altered rock - Google Patents
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- 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
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- 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
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- 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
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- 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
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Abstract
The invention discloses a method for preparing glaze by adopting gold ore associated altered rock, which comprises the steps of taking natural altered rock as a raw material, constructing a Si-Al-Ca-Fe-Mg mixed melting system, reconstructing phase composition and structure relationship of the system under a high temperature condition, and successfully preparing a mineral glaze surface comprising a crystalline glaze surface and an amorphous glaze surface. The phase composition and microstructure of the mineral glaze surface are characterized by adopting micro-area in-situ observation means such as an X-ray diffractometer and a field emission electron probe. The results show that: the crystal of the mineral glaze is quartz, hematite and magnesium ferrite, and the glass phase is mainly silicon-aluminum-calcium oxide; during the reconstitution reaction, iron dolomite and other minerals in the raw materials are decomposed and oxidized to generate iron and magnesium oxides, and Mg passes through in the further reaction2+The substitution of (a) forms magnesium ferrite. The glaze is prepared by taking natural ore as a raw material, so that the raw material cost is saved, the value of mineral resources is effectively improved, and the high-quality utilization of gold ore and mineral resources with non-metal is realized.
Description
The technical field is as follows:
the invention belongs to the technical field, and particularly relates to a method for preparing glaze by adopting gold mine associated altered rock.
Background art:
with the continuous increase of the consumption of mineral resources and the continuous enhancement of environmental protection requirements, the comprehensive utilization level of the mineral resources is further improved, and the high-quality utilization of the mineral resources is realized, so that the method is not only a key problem in the social development process, but also an important mark of the technological development level. The mineral resources in China are rich in (accompanied) mineral varieties, the comprehensive utilization prospect is wide, the economic benefit is improved while the environment is protected by recycling the useful components in the mineral deposit, and the method has important significance for realizing the sustainable development of mines.
Gold ore is a special resource type which occupies an important position in national economic development, quartz vein type and altered rock type gold ore deposits are typical representatives of gold ore deposits in China among a plurality of gold ore deposit types in China, and raw materials of the method are taken from the altered rock type gold ore deposits. Due to the particularity of the gold ore, the industrial grade of the gold ore is 1-3g/t at present, and the nonmetallic mineral group generated together with gold in the ore is mined out along with the gold ore, so that a large amount of accumulation is formed, and the gold ore is a resource type to be utilized.
The invention content is as follows:
the invention aims to overcome the defects in the prior art and provides a method for preparing glaze by adopting gold ore associated altered rock. The method is characterized in that natural altered rock is selected as a raw material, and on the basis of fully knowing chemical components and phase composition of the natural altered rock, a mineral phase system in the raw material is subjected to phase change at high temperature through an optimized process, and is reconstructed to prepare the mineral crystal glaze. By applying modern technical means, the phase composition of the prepared glaze is observed, the micro morphology is observed, and the phase transformation process and the formation mechanism are discussed. The glaze is prepared by taking natural ore as a raw material, so that the raw material cost is saved, the value of mineral resources is effectively improved, and the high-quality utilization of gold ore and (concomitant) non-metallic mineral resources is realized. On the basis of analyzing the characteristics of the altered rock by a system, the matching type, the process parameters and the technical scheme of the glaze surface performance and the blank material are determined by mineral balance calculation. The invention applies the mineralogy principle and the modern technical method to prepare the co-raw (concomitant) non-metallic minerals of the gold ores into the ceramic glaze material, thereby realizing the high-quality utilization of resources.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing glaze by adopting gold ore associated altered rock comprises the following steps:
(1) taking gold ore associated altered rock as a raw material, adding the raw material into a ball milling tank, performing wet ball milling for 20-30min, and sieving by using a ten-thousand-hole sieve until the screen residue is not more than 0.2% to obtain a glaze preparation raw material;
(2) mixing the raw material prepared in the step (1) with water, standing for 10-15h under an oxidation condition, and exciting the activity of sodium, calcium, magnesium, iron and other ions in the raw material to formThe activating agent promotes the combination reaction of the nano-components and other size components to prepare the glaze slip, and the density of the glaze slip is 1.35 to 1.4g/cm3；
(3) Glazing the biscuit by adopting the glaze slurry prepared in the step (2), wherein the thickness of a glaze layer is 1.0-1.3 mm;
(4) drying the glazed biscuit, and then firing in an electric furnace, wherein the firing curve is as follows: heating to 500-600 ℃ at a heating rate of 1.5-2.5 ℃/min, heating to 800-900 ℃ at a heating rate of 1.5-3 ℃/min, and keeping the temperature for 10-50 min; and raising the temperature to 1250-1270 ℃ at the heating rate of 2-3 ℃/min, preserving the temperature for 20-50min, and then cooling to room temperature in air to obtain the glaze surface.
In the step (1), the gold ore associated altered rock comprises SiO (silicon dioxide) components in percentage by mass2 66.2～66.9％，Al2O3 13.196～13.245％，CaO 6.518～6815％，Fe2O3 6.625～6.825％，MgO 3.382～3.430％，K2O 2.184～2.24％，TiO2 0.396～0.419％，Na2O 0.229～0.389％，P2O5 0.238～00.246％，MnO 0.125～0.136％，SrO 0.039～0.060％，SO30.013-0.015%; the phases comprise the following components in percentage by mass: 33-38% of quartz, 34-36% of albite, 13-16% of iron dolomite and 12-14% of polysilicate muscovite.
In the step (1), the altered rock is the altered rock in the altered rock type gold deposit, or the altered rock of other types of gold deposits is adjusted to be in the range of the chemical composition and the phase composition for use.
In the step (1), the ball milling proportion is as follows by mass: ball: water 1:2: 0.8.
In the step (1), the grinding rotating speed is 50 r/min.
In the step (1), the glaze material with the particle size of less than 10 μm accounts for 70-95%.
In the step (1), 30-50% of components in the raw materials are subjected to nanocrystallization through ball milling, chemical activity is excited, and the rest particle sizes are classified to form a closest packing structure to form a stable structure.
In the step (3), glaze is applied by adopting a glaze dipping method or a spraying method.
In the step (3), the biscuit is obtained by biscuit firing at 800 ℃.
In the step (3), the drying mode of the biscuit after glazing is as follows: standing and naturally drying.
In the step (3), the firing atmosphere is an oxidizing atmosphere.
In the step (4), the Mohs hardness of the prepared ceramic glaze surface can reach 6-6.5 through determination; the chemical corrosion resistance of the glaze is tested according to the method described in GB5003-1999-T 'determination of chemical corrosion resistance of glaze of daily ceramic ware', and the glaze has no obvious corrosion effect after the test and belongs to A-grade corrosion-resistant materials.
In the step (4), the glaze formed by firing is smooth and the grease is glossy; when the glaze particle size is less than 10 μm and accounts for 70-80% (including 80%), the glaze is a crystal glaze, the base part is dark brown vitreous, and yellow white microcrystals are uniformly and dispersedly distributed on the surface; when the glaze material has a grain size of less than 10 microns and accounts for 80-95% (80% is not included), the glaze surface has no crystal, and the base part is black vitreous.
In the step (4), the glaze surface with crystals comprises a crystal phase and a glass phase, wherein the crystal phase accounts for 20-30% of the whole percentage; the crystallized glaze has the following phase characteristics and microstructure: as can be seen from the X-ray diffraction spectrum (FIG. 2), the crystals on the crystal glaze sample comprise quartz (SiO)2) Hematite (Fe)2O3) And magnesium ferrite (MgFe)2O4) Wherein the newly formed crystal is Fe2O3And MgFe2O4，Fe2O332 to 37 percent of MgFe2O4The proportion is 63-68%.
The invention has the beneficial effects that:
(1) the valley alteration rock is used as a raw material, a Si-Al-Ca-Fe-Mg mixed melting system is constructed, and the mineral crystal glaze can be prepared through high-temperature phase reconstruction.
(2) The crystal of the mineral glaze is quartz, hematite and magnesium ferrite, and the glass phase is mainly silicon-aluminum-calcium oxide. Wherein part of the quartz is a residual product which is not completely melted and has irregular shape; the hematite is formed by decomposing and oxidizing minerals in the raw materials and is in a self-forming-semi-self-forming granular shape; the magnesium ferrite is formed by further reacting an intermediate product in the high-temperature reconstruction process and has two forms of microcrystal aggregation and dendrite development.
(3) Iron dolomite and other minerals in the raw material are decomposed and oxidized to generate Fe2O3And MgO, etc., due to Mg during further reaction2+The replacement of (A) forms MgFe2O4。
Description of the drawings:
FIG. 1 is an X-ray diffraction pattern of the starting material used in example 1;
FIG. 2 is an X-ray diffraction pattern of a crystalline glaze prepared in example 1;
FIG. 3 is an optical micrograph of a magnesium ferrite crystal in a crystallized glaze prepared in example 1, wherein FIGS. 3a and 3b are optical micrographs of the magnesium ferrite crystal at different observation positions;
FIG. 4 is a back-scattered electron image of an electron probe for a magnesium ferrite crystal in the crystal glaze prepared in example 1, wherein FIGS. 4a-c are the crystal with growing dendrites in morphology, and FIG. 4d is a dotted aggregate; FIGS. 4a and 4b are dendritic dendrites growing in a branch shape from the core part to the outside under different magnifications, and FIG. 4c is a dendritic arm symmetrically growing in a nearly vertical direction on both sides of a dendritic trunk; FIG. 4e is hematite (Fe)2O3) A crystal electron probe backscatter image; the first to the fourth is the position of a probe measuring point;
FIG. 5 is a pictorial representation of a crystalline glaze prepared in example 1;
FIG. 6 is a pictorial view of a glazed surface prepared in example 2;
fig. 7 is a physical diagram of the glaze prepared in comparative example 1.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to examples.
In the following examples 1 to 3:
the adopted altered rock is widely distributed in China, the chemical composition of the used raw materials is shown in table 1, and the phase comprises the following components in percentage by mass: 33-38% of quartz, 34-36% of albite, 13-16% of iron dolomite and 12-14% of polysilicate muscovite.
The phase composition of the raw material was analyzed by means of a model MPDDY2094 polycrystalline X-ray diffractometer from Pasnake, Netherlands.
The chemical composition of the starting material was determined using a zsxtramusii X-ray fluorescence spectrometer from japan physical corporation.
A glaze sample is observed by a field emission electron probe microanalyzer with the model number of JXA-8530F, the accelerating voltage is 20Kv, the current is 20nA, and the beam spot is 1 mu m.
1 chemical composition of the starting Material
XRF analysis of the starting materials is shown in Table 1, consisting essentially of SiO2、Al2O3、CaO、Fe2O3、MgO、K2O and the like. Wherein Al is2O3/SiO2The molar ratio of (A) to (B) is 1:8.55, and the molar ratio is within a range of 1: 8-9, so that the glaze is suitable for preparing glaze. Main chemical component SiO2And Al2O3Is the main component of glaze, CaO and MgO, and Fe in the controlled grain size2O3The crystal is precipitated in the cooling process of the glaze surface by selectively using the crystal as a crystallizing agent, and plays a certain role in coloring the glaze surface, and CaO and MgO are also used as active fluxing agents to improve the fluidity of the glaze body and the glossiness of the glaze surface.
XRD (X-ray diffraction) testing is carried out on a powder sample obtained after the altered rock is crushed and ball-milled, and an X-ray diffraction spectrum is shown in figure 1. It can be seen that the altered rock selected in the research mainly contains quartz, albite, iron dolomite, polysilicone muscovite and other minerals. Wherein:
quartz is SiO in glaze2The main source of the glaze can reduce the thermal expansion coefficient of the glaze, so that the mechanical strength and the chemical stability of the glaze are improved;
albite provides Al2O3And Na2O，Al2O3Is a network intermediate for forming the glaze, can improve the performance of the glaze,
Na2o is a strong fluxing agent;
iron oxide and other products can be generated after the decomposition reaction of the iron dolomite under the high-temperature oxidation environment.
Iron oxide and magnesium oxide provided by minerals such as iron dolomite, muscovite and the like can be reconstructed by a high-temperature phase to form the novel mineral glaze.
Example 1
A method for preparing glaze by adopting gold ore associated altered rock comprises the following steps:
(1) taking the gold ore associated altered rock as a raw material, adding the raw material into a ball milling tank according to the mass ratio, wherein the chemical composition of the gold ore associated altered rock is shown in table 1: ball: wet ball milling is carried out for 20min under the conditions that water is 1:2:0.8 and 50r/min, the mixture is sieved by a ten thousand-hole sieve, the residue is not more than 0.2 percent, 30 to 50 percent of components in the raw material are subjected to nanocrystallization, the chemical activity is excited, the rest particle sizes are graded to form the closest packing to form a stable structure, the particle size of the glaze is less than 10 mu m and accounts for 80 percent, and a glaze making raw material is obtained;
(2) mixing the raw material prepared in the step (1) with water in proportion, standing for 10-15h under an oxidation condition, exciting the activity of sodium, calcium, magnesium, iron and other ions in the raw material to form an active agent, promoting the combination reaction of the nano-components and other size components, and preparing the glaze slip, wherein the density of the glaze slip is 1.39g/cm3；
(3) Biscuit is obtained through biscuit firing at 800 ℃, glaze is applied to the biscuit by adopting the glaze slip prepared in the step (2) through a glaze dipping method, and the thickness of a glaze layer is 1.0 mm;
(4) after the biscuit after glazing is placed and naturally dried, the biscuit is fired in an electric furnace, the firing atmosphere is an oxidizing atmosphere, and the firing curve is as follows: after the temperature rises to 560 ℃ at the temperature rise rate of 2.5 ℃/min, the temperature rises to 900 ℃ at the temperature rise rate of 2 ℃/min, and the temperature is preserved for 10 min; heating to 1270 deg.C at a rate of 1.5 deg.C/min, maintaining for 20min, and air cooling to room temperature to obtain crystal glaze with smooth surface and glossy grease, and base part as shown in figure 5Dark brown glass, yellow white microcrystals are uniformly and dispersedly distributed on the surface, wherein the color point is taken as a crystal, and the lab value of the crystal of the point is 66,2 and 31; secondly, color points are taken for the substrate, and lab values of the points are 9,7 and 15; the crystal glaze surface comprises a crystal phase and a glass phase, wherein the crystal phase accounts for 20-30% of the whole percentage; the crystallized glaze has the following phase characteristics and microstructure: the X-ray diffraction spectrum of the glaze is shown in figure 2, and as can be seen from figure 2, the crystals on the crystal glaze sample mainly comprise quartz (SiO)2) Hematite (Fe)2O3) And magnesium ferrite (MgFe)2O4) Wherein the newly formed crystal is Fe2O3And MgFe2O4，Fe2O332 to 37 percent of MgFe2O4The proportion is 63-68%.
The Mohs hardness of the prepared glaze surface reaches 6-6.5 through determination; the chemical corrosion resistance of the glaze is tested according to the method described in GB5003-1999-T 'determination of chemical corrosion resistance of glaze of daily ceramic ware', and the glaze has no obvious corrosion effect after the test and belongs to A-grade corrosion-resistant materials.
The phase in this example has the following course of change: the X-ray diffraction spectrum of the crystal glaze surface prepared by reconstructing the glaze body is shown in figure 2. Comparing with the phase composition of the raw material in fig. 1, it can be seen that albite, ankerite and polysilicone muscovite components in the raw material have disappeared and a new mineral phase appears; hematite and magnesium ferrite (MgFe)2O4). The analysis considers that: during the high temperature reconstitution process, albite in the raw material acts as a fluxing agent, wherein SiO2、Al2O3And Na2And O, not only reduces the melting temperature and viscosity of the glaze, but also accelerates the sintering reaction and migration and diffusion of components, and is beneficial to the reaction of each mineral phase in the reconstruction experiment. Iron dolomite (CaFe (CO)3)2) Decomposition occurs during the heating process, and the decomposition products are further oxidized to generate Fe2O3、Fe3O4MgO, CaO and the like, and the reaction process is shown in formula (1). Polysilica muscovite (K { (Al, Fe)2[Si3AlO10](OH)2}) decomposition to potassium during high temperature reconstitutionThe reaction process of feldspar and hematite is shown in formula (2).
Ca(Fe,Mg)(CO3)2+O2→Fe2O3+Fe3O4+MgO+CaO+CO2↑ (1)
K{(Al,Fe)2[Si3AlO10](OH)2}→KAlSi3O8+Fe2O3+H2O (2)
During the above-mentioned reconstitution reaction, the iron dolomite and the polysilica muscovite in the raw materials are decomposed and oxidized to form iron and magnesium oxides. From the basic theory of crystallography, Mg2+Have a radius (0.078nm) close to and less than Fe2+(0.083nm) radius, so Mg2+Diffusing into magnetite lattice to replace part of Fe2+Formation of MgFe2O4And exists in the form of solid solution, which is more favorable for the stability of crystal lattice, and Fe is generated after the decomposition of iron dolomite2+Hematite is formed under oxidizing conditions. Therefore, the newly formed crystal in the glaze consists of hematite and magnesium ferrite together. Part of quartz and albite in the raw materials and siliceous ingredients in the polysilicate muscovite and calcareous substances after the decomposition of the dolomites form a glass phase part in the glaze body in the process of reconstruction.
The growth process of the crystal is actually a process of arranging and stacking mass points forming the crystal according to a lattice structure rule under a certain condition. The crystals in the glaze are the result of the transition from the starting phase through the liquid phase melt to the crystalline solid phase, and the thermodynamic conditions under which phase transition occurs are melt supersaturation or undercooling. The morphology of the finally formed crystal is influenced by the internal structural factors controlling the crystal growth and the external environmental factors during the growth. The internal structure of the mineral crystal of the same kind is fixed, and the external environment factors are more complicated, but the influence on the crystal morphology is generally realized by changing the relative growth speed between crystal faces.
Temperature change, melt viscosity and crystallization speed are all key factors influencing crystal morphology, wherein rapid growth of crystals can cause the crystal morphology to deviate from an equilibrium state to form dendrites, and the nucleation speed is also high, so that crystal nuclei are increased and the crystals are fine, such as magnesium ferrite crystals in the research; while slow crystallization rates result in the formation of coarser crystals, such as hematite crystals. In FIG. 4e, regular dendrites are observed in a nearly linear arrangement, with small gaps between the nuclei. In the crystallization process, initial supercooling degree drives crystal nucleus growth, but liquid phase separation exists between the crystal nuclei, then the crystal growth and development obviously form dendritic crystal arms in the preferential growth direction, and the dendritic crystal arms do not develop because the growth space is narrow and small between the crystal nuclei, finally lead to the crystal nucleus bilateral symmetry development dendritic crystal of regular arrangement.
The macroscopic view of the crystal glaze prepared in this example was observed under an optical microscope and an electron probe, respectively, and it was found that the glaze was substantially composed of two portions, a crystal phase and a glass phase.
Observing the crystal part under a single bias light, wherein the optical micrographs of the magnesium ferrite crystals in the glaze are shown in FIG. 3, and FIGS. 3a and 3b are the optical micrographs of the magnesium ferrite crystals at different positions; multilayer crystalline stacking was found, indicating that the enamel layer was crystalline both at the surface and in the layer, while the individual crystals showed star-like (in fig. 3 a) or radial (in fig. 3 b) growth characteristics.
The back scattering electron image under the electron probe of the magnesium ferrite crystal in the crystal glaze is shown in FIG. 4, wherein the first to fourth are the positions of the measuring points of the probe, wherein FIGS. 4a to c are the crystal with growing dendrite in shape, and FIG. 4d is a spotted aggregate; FIGS. 4a and 4b show dendrites growing in a branch shape from the core part to the outside under different magnifications, FIG. 4c shows dendrite arms symmetrically growing on both sides of a dendrite main body in a direction nearly vertical to the growing direction, and FIG. 4e shows hematite (Fe)2O3) A crystal electron probe backscatter image; it can be seen that:
magnesium ferrite (MgFe)2O4) The morphology of the crystal includes both dendrites (FIGS. 4a to 4c) and specks (FIG. 4 d). There are two morphologies of dendrites: the first is dendrites growing in a branch shape from the core part outwards (fig. 4a and 4b) under different magnifications; the second is that the two sides of a dendritic main stem grow dendrite arms symmetrically in the nearly vertical direction (figure 4-c); and as can be seen in FIG. 4e, hematite (Fe)2O3) Crystal boundariesRelatively regular, bright in color in the electron probe backscatter image, and no dendrite growth around.
The glass phase in the crystal glaze obtained in the embodiment is brown when observed under single polarization, is fully extinction under orthogonal polarization, and is uniformly distributed in light gray in a back scattering electron image, and the components of the crystal glaze are analyzed through energy spectrum test and are shown in table 2, so that the crystal glaze is a complex causative product mainly containing silicon-aluminum-calcium oxide, the crystal phase of the glaze is consistent with the crystal phase of XRD analysis calculated according to the energy spectrum data result of the table 2, and the main minerals are quartz, hematite and magnesium ferrite.
TABLE 2 energy spectral data analysis
Example 2
The glaze preparation process of this example is the same as that of example 1, except that, during raw material treatment, the grinding time is prolonged for the raw materials to make the particle size smaller, and the components with the particle size smaller than 10 μm account for 85%, the firing process is kept unchanged, only the third stage of heating in firing is adjusted to raise the temperature to 1250 ℃ at the heating rate of 1.5 ℃/min, and after 20min of heat preservation, the glaze is cooled to room temperature, and the glaze prepared by the glaze is obtained as shown in fig. 6. The glaze surface is bright black, smooth and fine, has no crystallization and is all vitreous components.
Comparative example 1
The glaze preparation process of this example is the same as that of example 1, except that, in the raw material treatment, the grinding time is reduced for the raw material, so that the particle size is larger, the components with the particle size of less than 10 μm account for 50% -60%, the firing process is kept unchanged, and the prepared glaze is as shown in fig. 7. The glaze surface is dark brown, coarse and granular, the proportion of unmelted components in the raw materials is large, the crystalline phase is the mixture of the unmelted components and newly generated crystals, the glass phase is less, and a good glaze surface cannot be obtained.
Claims (6)
1. A method for preparing glaze by adopting gold ore associated altered rock is characterized by comprising the following steps:
(1) accompanying gold oreAdding the altered rock serving as a raw material into a ball milling tank, performing wet ball milling for 20min, and sieving by using a ten-thousand-hole sieve until the residue is not more than 0.2% to obtain a glaze preparation raw material, wherein the gold associated altered rock comprises components with mass percentage of SiO266.2~66.9%，Al2O3 13.196~13.245%，CaO 6.518~6.815%，Fe2O3 6.625~6.825%，MgO 3.382~3.430%，K2O 2.184~2.24%，TiO2 0.396~0.419%，Na2O 0.229~0.389%，P2O5 0.238~0.246%，MnO 0.125~0.136%，SrO 0.039~0.060%，SO30.013-0.015%; the phases comprise the following components in percentage by mass: 33-38% of quartz, 34-36% of albite, 13-16% of iron dolomite and 12-14% of polysilicone muscovite;
(2) mixing the raw material prepared in the step (1) with water, standing for 10-15h under an oxidation condition, exciting the activity of sodium, calcium, magnesium, iron and other ions in the raw material to form an active agent, promoting the chemical combination reaction of the nano-components and other size components, and preparing the glaze slip, wherein the density of the glaze slip is 1.35-1.4g/cm3；
(3) Glazing the biscuit by adopting the glaze slurry prepared in the step (2), wherein the thickness of a glaze layer is 1.0-1.3 mm;
(4) drying the glazed biscuit, and then firing in an electric furnace, wherein the firing curve is as follows: heating to 500-600 ℃ at a heating rate of 1.5-2.5 ℃/min, heating to 800-900 ℃ at a heating rate of 1.5-3 ℃/min, and keeping the temperature for 10-50 min; and raising the temperature to 1250-1270 ℃ at the heating rate of 2-3 ℃/min, preserving the temperature for 20-50min, and then cooling to room temperature in air to obtain the glaze surface.
2. The method for preparing glaze by using gold mine associated altered rock according to claim 1, wherein in the step (1), the ball milling proportion is as raw materials in mass ratio: ball: water =1:2: 0.8.
3. The method for preparing glaze according to claim 1, wherein in the step (1), the glaze has a particle size of less than 15 μm, and less than 10 μm accounts for 70-95%.
4. The method for preparing glaze according to claim 1, wherein in the step (4), the mohs hardness of the prepared ceramic glaze reaches 6-6.5; the glaze surface has no obvious corrosion effect after the test, and belongs to A-grade corrosion-resistant materials.
5. The method for preparing glaze according to claim 1, wherein in the step (4), the glaze formed by firing is smooth and greasy; when the glaze material grain size is less than 10 μm and accounts for 70-80%, the glaze surface is a crystal glaze surface, the base part is dark brown vitreous, and yellow white microcrystals are uniformly and dispersedly distributed on the surface; when the glaze material grain size is less than 10 microns and accounts for 80-95%, the glaze surface has no crystal and the base body part is black vitreous.
6. The method for preparing glaze according to claim 5, wherein in the step (4), the crystal glaze comprises a crystal phase and a glass phase, and the crystal phase accounts for 20-30% of the whole percentage; the crystals on the crystal glaze surface comprise SiO2、Fe2O3And MgFe2O4Wherein the newly formed crystal is Fe2O3And MgFe2O4，Fe2O332-37% of MgFe2O4The ratio is 63% -68%.
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| CN114656287B (en) * | 2022-03-15 | 2022-12-06 | 河北金厂峪矿业有限责任公司 | Method for preparing pseudobrookite crystalline glaze by using gold tailings |
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| CN106542737A (en) * | 2016-12-30 | 2017-03-29 | 景德镇陶瓷大学 | A kind of glaze compositions and its method for cooking |
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| JP3941153B2 (en) * | 1996-04-12 | 2007-07-04 | 旭硝子株式会社 | Ceramic color composition and glass plate |
| CN103086748A (en) * | 2013-02-06 | 2013-05-08 | 陕西科技大学 | Preparation method of slag bicrystal gold fancy glaze |
| CN105130392A (en) * | 2015-07-29 | 2015-12-09 | 陈文源 | Iron-red fancy glazed porcelain prepared from josephinite tailing slag |
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