A stone-like material, its preparation method and use

Abstract

The application provides a stone-like material and a preparation method and application thereof. The preparation method of the stone-like material provided by the application comprises the following steps: adding vanadium-titanium metallurgical slag, copper metallurgical slag, a nucleating agent and water, and stirring to obtain a mixture; and drying the mixture to obtain the stone-like material. The raw materials of the stone-like material provided by the application include vanadium-titanium metallurgical slag, copper metallurgical slag and a nucleating agent in a weight ratio of 20-40:20-40:30-60. The nucleating agent includes waste microcrystalline glass and waste ceramic in a mass ratio of 1:(0.5-3). The preparation method provided by the application introduces vanadium-titanium metallurgical slag, copper metallurgical slag, waste ceramic and waste microcrystalline glass from the raw material end, contains a large amount of glass phase and other amorphous substances, and can realize recrystallization and structure reconstruction through heat treatment processes such as sintering and cooling, so that the mechanical properties and wear resistance of the stone-like material are improved. Meanwhile, the waste materials are difficult to be utilized on a large scale due to a large amount of production, and the preparation method provided by the application effectively utilizes the waste materials, and has good economic, social and ecological benefits. The obtained stone-like material has better performance and a wider application range, and can be used in fields such as building, indoor decoration, landscape, art and the like.

Description

Technical Field

[0001] This invention relates to the field of stone-like materials technology, and in particular to a stone-like material, its preparation method, and its application. Background Technology

[0002] As a major consumer of stone, China faces the inevitable trend of artificial stone gradually replacing natural stone due to the overexploitation of natural stone and the increasing scarcity of natural resources. Artificial stone materials are mainly divided into organic-inorganic composites and pure inorganic materials. Sintered artificial stone materials, with their natural textures and colors while possessing the excellent properties of natural stone, are increasingly favored and valued by consumers. In recent years, the use of various types of solid waste as raw materials has attracted increasing attention from researchers. Currently, commonly used solid waste raw materials include metallurgical slag, fly ash, red mud, tailings, and ceramic waste.

[0003] Currently, scholars are seeking to improve the mechanical properties of materials through various technical means. For example, they are controlling the phase composition of imitation stone materials by introducing mullite, cordierite, quartz, and aluminum-rich crystalline phases into the raw materials to improve mechanical strength (such as flexural strength). However, with the deepening of research and the expansion of applications of imitation stone materials, while satisfying the improvement of mechanical properties, there is relatively little discussion on aspects such as wear resistance. Although there are process methods to control crystal size and structure, these processes are complex and have limited effect on improving wear resistance, making them difficult to implement in practice. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in the prior art. To this end, one objective of this invention is to propose a method for preparing a stone-like material. By weight, the raw materials include 20-40 parts of vanadium-titanium metallurgical slag, 20-40 parts of copper metallurgical slag, and 30-60 parts of a nucleating agent. The nucleating agent comprises waste microcrystalline glass and waste ceramics in a mass ratio of 1:(0.5-3). Introducing vanadium-titanium metallurgical slag and copper metallurgical slag from the raw material end, which contain a large amount of amorphous substances such as glass phase, allows for recrystallization and structural reconstruction through heat treatment processes such as sintering and cooling control. This improves the mechanical properties (such as flexural strength) and wear resistance of the stone-like material. Simultaneously, these raw materials are generated in large quantities and are difficult to utilize on a large scale. The method for preparing the stone-like material provided by this invention can effectively utilize these waste materials, achieving resource utilization and possessing high environmental value.

[0005] Waste ceramics and waste microcrystalline glass also contain abundant amorphous substances such as glass phase. As nucleating agents, they can realize the resource utilization of waste and achieve environmental protection value. On the other hand, during the sintering and cooling process, waste microcrystalline glass and waste ceramics are conducive to the formation of crystal nuclei, and can prepare imitation stone materials with high wear resistance. In particular, when the mass ratio of waste microcrystalline glass to waste ceramics is 1:(0.5-3), waste microcrystalline glass and waste ceramics can work synergistically to significantly improve the wear resistance and mechanical properties (such as flexural strength) of the resulting imitation stone materials.

[0006] In some embodiments, the preparation method includes: pulverizing the raw material, molding, sintering, and cooling; wherein the sintering process is as follows: heating from room temperature to a softening nucleation temperature of 850-1000℃ at a heating rate of 5-10℃ / min, holding at that temperature for at least 0.5 hours; then heating to a firing temperature of 1120-1200℃ at a heating rate of 3-8℃ / min, holding at that temperature for 2-5 hours. Using the above sintering process facilitates the rapid formation of crystal nuclei and the formation of appropriately sized, complete, and uniform crystal structures, thereby improving the mechanical properties and wear resistance of the stone-like material.

[0007] In some embodiments, the cooling process is as follows: first, cooling from the firing temperature to the crystallization temperature at a rate of 3-5°C / min, and holding at the crystallization temperature for 1-6 hours; then cooling from the crystallization temperature to room temperature at a rate of 4-6°C / min. Preferably, the crystallization temperature is 950-980°C; preferably, holding at the crystallization temperature for 3-4 hours.

[0008] The above-mentioned cooling process is beneficial to forming a crystal structure with appropriate, complete and uniform grain size, while improving the purity of the crystallization product, thereby further improving the mechanical properties and wear resistance of the stone-like material.

[0009] In some embodiments, the powdering process involves: wet grinding of the raw materials and dispersant, uniform mixing to obtain a slurry, drying, granulation, and aging; wherein, after granulation, the particle size of the raw materials is 325-400 mesh. Copper metallurgical slag has a hard and brittle internal structure, making it easily broken and difficult to grind. Introducing copper metallurgical slag through a grinding process, combined with raw material particle size control, can effectively improve the wear resistance and density of the imitation stone material.

[0010] In some embodiments, the slurry is dried at a temperature of 100-120°C.

[0011] In some implementations, the moisture content of the dried powder is 5-7%.

[0012] In some embodiments, the aging time is 24-48 hours.

[0013] In some embodiments, the molding pressure is 30-40 MPa, and the pressure is maintained for 5-10 seconds. Molding under these conditions effectively removes internal gases, which is beneficial for forming a dense structure during sintering.

[0014] In some embodiments, the dispersant is selected from at least one of sodium silicate aqueous solution, sodium tripolyphosphate, sodium hexametaphosphate, and sodium pyrophosphate. Using the dispersant can achieve uniform encapsulation of the solid and liquid phases in the slurry, as well as good slurry flowability and compatibility.

[0015] In a second aspect, this invention provides a stone-like material prepared using the aforementioned method. Compared to traditional stone-like materials, the stone-like material provided by this invention possesses superior properties such as high flexural strength and high wear resistance. Utilizing metallurgical solid waste to prepare wear-resistant stone-like materials can significantly reduce material costs and achieve resource utilization.

[0016] In a third aspect, the present invention provides the application of the stone-like material in at least one of architecture, interior decoration, garden landscape, and artwork.

[0017] Preferably, the application in the building includes at least one of exterior wall facades, interior wall decorative bricks, and antique-style floor tiles.

[0018] Preferably, the application in the interior decoration includes using the imitation stone material as at least one of thresholds, window sills, and kitchen countertops. Preferably, the application in the garden landscape includes at least one of walkways, artificial hills, and corridor decorations.

[0019] Preferably, the application in the artwork includes at least one of vases, sculptures, and object components.

[0020] The application of the aforementioned imitation stone material to replace natural stone can avoid the radioactive pollution that natural stone may have. Moreover, the imitation stone material can be made from metallurgical waste slag as raw material and can be mass-produced to reduce costs. Furthermore, it can be used to produce and manufacture more personalized products according to market demand, such as color, pattern, size, etc.

[0021] The present invention has at least the following technical effects:

[0022] (1) Vanadium-titanium metallurgical slag, copper metallurgical slag, waste ceramics, waste microcrystalline glass, etc. are mainly introduced from the raw material end. They contain a large amount of amorphous substances such as glass phase. They are recrystallized and reconstructed through heat treatment processes such as sintering and cooling processes; thereby improving the mechanical properties and wear resistance of the stone-like material.

[0023] (2) Copper metallurgical slag is mainly composed of iron, silicon and oxygen. The three elements account for more than 80% of the total mass. From the perspective of mineral composition, the main mineral composition of copper slag is amorphous glass composed of iron olivine (Fe2SiO4), magnetite (Fe3O4) and some gangue. The internal structure is hard and brittle, and it is easy to break and difficult to grind. By adding it into the formula system through the grinding process, on the one hand, the iron component can be used as a sintering aid for imitation stone materials, and on the other hand, new olivine and spinel crystal phases are formed.

[0024] (3) Since the raw materials are mostly heat-treated materials such as metallurgical materials, the sintering performance of the raw materials is relatively stable, which reduces product defects. Through customized selection of raw materials and process control, imitation stone materials with both structure and function can be prepared, realizing the resource utilization of solid waste while having good economic, social and ecological benefits.

[0025] Detailed implementation method.

[0026] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0027] In existing technologies, the preparation of stone-like materials using solid waste as raw materials often suffers from poor wear resistance, or a mismatch between wear resistance and flexural strength. To improve wear resistance, attempts have been made to control the crystal structure and size, typically by adjusting the sintering and cooling processes, such as temperature and the rate of temperature change. However, these processes are complex and have limited effect on improving wear resistance, making them difficult to implement in practice.

[0028] Based on this, the present invention provides a high wear-resistant imitation stone material, its preparation method, and its application from the perspective of the compatibility of wear resistance and strength (such as flexural strength) in imitation stone materials. It selects and optimizes the raw materials and controls the firing and cooling processes to solve the problems of wear resistance and flexural strength in the prior art and achieve the purpose of preparing high wear-resistant imitation stone materials. At the same time, the preparation method provided by the present invention has a higher firing temperature and a shorter firing cycle.

[0029] In one aspect, the present invention provides a method for preparing a stone-like material, wherein the raw materials, by weight, include 20-40 parts of vanadium-titanium metallurgical slag, 20-40 parts of copper metallurgical slag, and 30-60 parts of nucleating agent. The nucleating agent is selected from waste ceramics and waste microcrystalline glass, and the amount of waste ceramics is 20-30 parts and the amount of waste microcrystalline glass is 10-30 parts. Preferably, the total weight is 100 parts, wherein, in the following examples, 1 part = 1 kg.

[0030] Vanadium-titanium metallurgical slag can be used in quantities of 20, 25, 30, 35, 40, or other parts by weight, or within ranges of these quantities, such as 20-35, 20-30, 20-25, 25-40, 30-40, 25-35, etc.; copper metallurgical slag can be used in quantities of 20, 25, 30, 35, 40, or other parts by weight, or within ranges of these quantities, such as 20-35, 20-30, 20-25, 25-40, 30-40, 25-35, etc. 5 parts, etc.; nucleating agent in amounts of 30, 40, 50, 60 or other weight parts, or within the range of these weight parts; waste ceramics in amounts of 20, 25, 30 or other weight parts, or within the range of these weight parts, such as 20-25 parts, 25-30 parts, etc.; waste microcrystalline glass in amounts of 10, 15, 20, 25, 30 or other weight parts, or within the range of these weight parts, such as 10-25 parts, 20-30 parts, 15-25 parts, etc.

[0031] The method for preparing the stone-like material provided in this embodiment of the invention includes the following steps.

[0032] (1) Grinding raw materials: Wet grinding of each raw material and additive in the formula amount.

[0033] (2) Drying: After the powdered raw materials and additives are fully mixed, the formula slurry is obtained. The slurry is placed in an oven and the oven temperature is adjusted to 100-120℃ for drying. The drying temperature can be 100℃, 105℃, 110℃, 115℃, 120℃ or other temperatures, or a range of these temperatures.

[0034] (3) Granulation: After drying, the powder is granulated through a 40-mesh sieve with a moisture content of 5-7% and then aged for 24-48 hours; the moisture content of the dried powder can be 5%, 6%, 7%, or a range of these moisture contents; after granulation, the aging time can be 24h, 36h and 48h or other times or a range of these times.

[0035] (4) Molding: The molding pressure is 20-40MPa, and the mold is demolded after holding the pressure for 5-10 seconds. During the molding process, the pressure can be 20MPa, 30MPa and 40MPa or other pressures or pressure ranges composed of these pressures. The holding pressure and shaping time can be 5s, 7s, 8s and 10s or other times or time ranges composed of these times.

[0036] (5) Sintering: The temperature is increased from room temperature to a softening nucleation temperature of 850-1000℃ at a heating rate of 5-10℃ / min, and held for at least 0.5 hours; then increased to a sintering temperature of 1120-1200℃ at a heating rate of 3-8℃ / min, and held for 2-5 hours; during sintering, the heating rate from room temperature to the softening nucleation temperature can be 5℃ / min, 6℃ / min, 7℃ / min, 8℃ / min, 9℃ / min, and 10℃ / min, or other rates or a range of these rates; the softening nucleation temperature can be 850℃, 900℃, 950℃, 1000℃, or other temperatures, and... The holding time at the softening nucleation temperature can be 0.5h, 1h, 1.5h, 2h or other times, or a range of these times; the rate of heating to the sintering temperature can be 3℃ / min, 4℃ / min, 5℃ / min, 6℃ / min, 7℃ / min, 8℃ / min or other rates or a range of these rates; the sintering temperature can be 1120℃, 1150℃ and 1200℃ or other temperatures or a range of these temperatures, and the holding time can be 2h, 3h, 4h and 5h or other times or a range of these times.

[0037] (6) Cooling: First, cool from the sintering temperature to the crystallization temperature at a rate of 3-5℃ / min, and hold at the crystallization temperature for 1-6 hours; then cool from the crystallization temperature to room temperature at a rate of 4-6℃ / min. The cooling rate from the sintering temperature to the crystallization temperature can be 3℃ / min, 4℃ / min, 5℃ / min or other rates or a range of these rates; the holding time at the crystallization temperature can be 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours or other times or a range of these times; the cooling rate from the crystallization temperature to room temperature can be 4℃ / min, 5℃ / min, 6℃ / min or other rates or a range of these rates.

[0038] The additive is a dispersant, selected from sodium silicate aqueous solution (commonly known as water glass), sodium tripolyphosphate, sodium hexametaphosphate, and sodium pyrophosphate, etc.

[0039] During the cooling process, the crystallization temperature is 950℃-980℃, such as 950℃, 960℃, 970℃, 980℃ or other temperatures or a range of these temperatures. The holding time at the crystallization temperature is preferably 3-4 hours, such as 3 hours, 4 hours, 3.5 hours or other times or a range of these times.

[0040] The parameters above are for illustrative purposes only and are not intended to limit the scope of the application. Those skilled in the art can make selections based on the actual circumstances.

[0041] Copper metallurgical slag (also known as copper slag) is black or brown with a metallic luster and a true density of 3.5–4.5 t / m³. 3 Copper slag has a hard and brittle internal structure, making it easily broken and difficult to grind. It is generally used as a raw material in cement, aggregates, cast stone, and roadbed materials. However, millimeter-sized copper slag is typically added directly to cement-based materials as aggregate and support material. Verification has shown that adding copper slag to the formulation of imitation stone materials in this way, followed by sintering and cooling, results in problems such as high sintering temperature, low material densification, poor wear resistance (generally requiring 1250℃), and a long sintering cycle (generally 5-8 hours). In this invention, the copper metallurgical slag is added to the formulation system through a grinding process, controlling the particle size of the copper metallurgical slag to 325-400 mesh. On one hand, the iron content acts as a sintering aid for the imitation stone material; on the other hand, it forms new crystalline phases such as olivine and spinel. Simultaneously, it overcomes the problems of high sintering temperature and long sintering cycle associated with existing copper slag technologies. The combination of copper slag and vanadium-titanium metallurgical slag, under the action of a nucleating agent, can reshape the crystal structure through sintering and cooling processes, thereby improving the wear resistance and flexural strength of the imitation stone material.

[0042] The preparation method provided in this invention utilizes the characteristics of metallurgical slag (vanadium-titanium metallurgical slag and copper metallurgical slag) that has undergone thermal treatment, waste ceramics, waste microcrystalline glass, etc., which contain a large amount of amorphous glass phase and the stability of clinker. Through firing, secondary reconstruction of crystals is achieved, and the process is optimized to prepare a high-density imitation stone material. This method also greatly enhances the mechanical strength of the imitation stone material, especially its flexural strength and wear resistance. At the same time, it realizes the resource utilization of waste materials and achieves economic, social and ecological benefits.

[0043] Secondly, a stone-like material is provided, prepared using the aforementioned method. The stone-like material has a water absorption rate of 0.18-0.34%, a flexural strength of 85.3-103.1 MPa, and an abrasion resistance of less than 5 mm.

[0044] The imitation stone material provided by this invention can be applied to architecture, interior decoration, landscaping, and artworks. Specifically, the imitation stone material can be used as building facades, thresholds, window sills, and cabinet countertops in interior decoration, walkways and artificial hills in landscaping, and also as artworks such as vases. When used in artworks such as vases and sculptures, pigments and other additives can be added during the preparation process to create personalized products.

[0045] The present invention will now be described with reference to specific embodiments. It should be noted that these embodiments are merely descriptive and do not limit the present invention in any way.

[0046] Examples 1-4 all provide a method for preparing a stone-like material, and the raw materials are shown in Table 1.

[0047] Table 1 Raw material composition of Examples 1-4

[0048]

[0049] The chemical composition of each raw material is shown in Table 2.

[0050] Table 2 Chemical composition of raw materials

[0051]

[0052] Examples 1-4

[0053] The preparation methods for the stone-like materials provided in Examples 1-4 are as follows:

[0054] (1) Raw material grinding: Wet grinding of each raw material and additive, wherein the additive is a dispersant, specifically, the dispersant is an aqueous solution of sodium silicate;

[0055] (2) Drying: After the ground raw materials and dispersant are fully mixed, the formula slurry is obtained. The slurry is placed in an oven and the oven temperature is adjusted to 110℃ for drying to obtain powder with a moisture content of 5-7%.

[0056] (3) Granulation: After drying, the powder is granulated by passing it through a 400-mesh sieve and then aged for 36 hours;

[0057] (4) Molding: Molding pressure 30MPa, hold pressure for 8 seconds and then demold;

[0058] (5) Sintering: The temperature is increased from room temperature to 850℃ at a rate of 5℃ / min, and the temperature is maintained at 850℃ for 1 hour. Then the temperature is increased to 1150℃ at a rate of 5℃ / min and held for 4 hours.

[0059] (6) Cooling: First, cool from the firing temperature to the crystallization temperature at a rate of 4℃ / min, and keep at the crystallization temperature for 4h; then cool from the crystallization temperature to room temperature at a rate of 5℃ / min.

[0060] Comparative Examples 1-5

[0061] Comparative Examples 1-5 all provide a method for preparing a stone-like material, which is basically the same as that of Examples 1-4, except that the raw material composition is different. The raw material composition of Comparative Examples 1-5 is shown in Table 3.

[0062] Table 3. Raw material composition of Comparative Examples 1-5

[0063]

[0064] Comparative Example 6

[0065] This comparative example provides a method for preparing a stone-like material, which is basically the same as that in Example 1, except that the particle size of the copper metallurgical slag is 3 mm.

[0066] The results show that when the particle size of copper metallurgical slag is 3 mm, the sintering and cooling process provided by this invention cannot form a dense imitation stone material.

[0067] Test case

[0068] Test subjects: the imitation stone materials obtained in each of Examples 1-4 and Comparative Examples 1-5.

[0069] Test method:

[0070] (1) Water absorption rate: used to examine the density of imitation stone materials. The water absorption rate is tested according to the test method in Part 3 of GB / T3810.6-2016 Ceramic Tile Test Methods: Determination of Water Absorption Rate, Apparent Porosity, Apparent Relative Density and Bulk Density. The smaller the value, the better the density of the imitation stone material and the fewer internal voids.

[0071] (2) Flexural strength: The test shall be conducted in accordance with the test method for breaking strength in Part 4 of GB / T3810.6-2016 Ceramic Tile Test Methods: Determination of Modulus of Fracture and Breaking Strength. The larger the result value, the better the flexural performance of the imitation stone material.

[0072] (3) Abrasion resistance: This is used to examine the abrasion resistance of imitation stone materials. The test is conducted in accordance with GB / T3810.6-2016, Test Methods for Ceramic Tiles, Part 6: Determination of Abrasion Depth of Unglazed Tiles. The smaller the result value, the better the abrasion resistance of the imitation stone material.

[0073] Experimental results: see Table 4.

[0074] Table 4. Test results of water absorption, flexural strength and abrasion resistance

[0075]

[0076] As can be seen from the various embodiments, comparative examples, and Table 4, the water absorption rate and abrasion resistance of Examples 1-4 are significantly lower than those of Comparative Examples 1-5, and the flexural strength is greater than that of the imitation stone materials obtained in Comparative Examples 1-5. This indicates that the imitation stone materials prepared using the raw material composition and proportions provided by the present invention have smaller internal pores, a denser structure, higher flexural strength, and better abrasion resistance.

[0077] Compared with Comparative Examples 1, 4, and 5, the only difference in Example 1 was the addition of copper metallurgical slag. The results showed that the imitation stone material obtained by adding copper metallurgical slag in Example 1 had significantly lower water absorption and wear resistance, and significantly higher flexural strength. This indicates that adding copper metallurgical slag according to the method of the present invention can effectively improve the density, flexural strength, and wear resistance of the imitation stone material. In contrast, Comparative Examples 1, 4, and 5, which did not add copper metallurgical slag, had even worse density, flexural strength, and wear resistance, regardless of whether the amount of other raw materials was adjusted.

[0078] Comparing Example 2 and Comparative Example 2, the only difference is whether waste ceramics are added. The results show that the imitation stone material obtained by Example 2 with added waste ceramics has lower water absorption and wear resistance values, and higher flexural strength. This indicates that the addition of waste ceramics and waste microcrystalline glass in this invention produces a synergistic effect. The addition of waste microcrystalline glass and waste ceramics in the manner of this invention can effectively improve the density, flexural strength and wear resistance of the imitation stone material.

[0079] Comparing Example 3 and Comparative Example 3, Example 4 and Comparative Example 4, although vanadium-titanium metallurgical slag, copper metallurgical slag, waste ceramics and waste microcrystalline glass were also added to Comparative Examples 3 and 4, their proportions and amounts were outside the scope of this application, especially the amounts of vanadium-titanium metallurgical slag and copper metallurgical slag. The results showed that the proportions and amounts were within the scope of this application, and the resulting imitation stone material had significantly better density, flexural strength and wear resistance.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for producing a stone-like material, characterized in that, Raw materials include vanadium-titanium metallurgical slag 20-40 parts by weight, copper metallurgical slag 20-40 parts by weight, nucleating agent 30-60 parts by weight; the nucleating agent includes waste microcrystalline glass and waste ceramic in a mass ratio of 1: (0.5-3); The composition of the waste ceramic is: 67.80wt% of SiO2, 14.10wt% of Al2O3, 3.71wt% of Fe2O3, 2.00wt% of CaO, 6.93wt% of K2O, 0.69wt% of MgO, 2.36wt% of Na2O, 0.47wt% of TiO2, and 1.94wt% of loss on ignition; The composition of the waste microcrystalline glass is: 66.21wt% of SiO2, 18.68wt% of Al2O3, 0.21wt% of Fe2O3, 3.56wt% of CaO, 4.21wt% of K2O, 2.24wt% of MgO, 0.34wt% of Na2O, 2.45wt% of TiO2, and 2.1wt% of loss on ignition; The preparation method includes: powdering the raw materials, shaping, sintering and cooling; The sintering process is: heating from room temperature to 850-1000℃ at a heating rate of 5-10℃ / min, keeping for at least 0.5 hours; then heating to 1120-1200℃ at a rate of 3-8℃ / min, keeping for 2-5 hours; The cooling process is: first cooling from the sintering temperature to the crystallization temperature 950-980℃ at a rate of 3-5℃ / min, and keeping at the crystallization temperature for 3-4 hours; then cooling from the crystallization temperature to room temperature at a rate of 4-6℃ / min. The powdering process is: wet grinding the raw materials and a dispersant, mixing uniformly to obtain a slurry, drying, granulating and aging; 2. The preparation method according to claim 1, characterized in that, After granulation, the powdering particle size of the raw materials is 325-400 mesh. The slurry is dried at a temperature of 100-120℃; 3. The preparation method according to claim 2, characterized in that, And / or, the water content of the dried powder is 5-7%; And / or, the aging time is 24-48 hours. The dispersant is at least one selected from the group consisting of sodium silicate aqueous solution, sodium tripolyphosphate, sodium hexametaphosphate and sodium pyrophosphate.

4. The preparation method according to claim 2, characterized in that, The shaping pressure is 30-40MPa, and the holding time of the pressure is 5-10s.

5. The process according to any one of claims 1 to 4, characterized in that, The preparation method is prepared by any one of claims 1-5.

6. A stone-like material, characterized in that 7. The application of the stone-like material of claim 6 in at least one of building, interior decoration, landscape, and art. The application in the building includes at least one of outer wall facade, inner wall decorative brick and antique floor tile; 8. Use according to claim 7, characterized in that, And / or, the application in the interior decoration includes at least one of using the stone-like material as a door stone, window sill stone, and cabinet countertop; And / or, the application in the landscape includes at least one of footpath, rockery, and corridor decoration; And / or, the application in the art includes at least one of vase, sculpture, and utensil component. ​

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