Preparation method of whitening synthetic zirconium for architectural ceramics based on tailing sand

Abstract

The invention discloses a preparation method of tailing sand-based whitening synthetic zirconium for architectural ceramics, which is prepared from the following raw materials in percentage by mass based on the total mass of the raw materials: 80 to 92 percent of tailing sand, 2 to 3 percent of aluminum oxide, 2 to 3.2 percent of silicon dioxide, 0.1 to 2 percent of whitening agent, 0.6 to 1.2 percent of mineralizer, 0.5 to 2 percent of stabilizer and 0.6 to 1.3 percent of sintering aid. According to the preparation method of the whitening synthetic zirconium for the building ceramic based on the tailing sand, the specific whitening agent is added into the whitening synthetic zirconium, so that the whiteness and the brightness of the whitening synthetic zirconium are remarkably improved. The whitening synthetic zirconium can present purer and brighter color when being used for manufacturing white pigments, coatings, ceramics and other products, the visual effect and attraction of the products are improved, the stabilizer in the whitening synthetic zirconium can effectively prevent chemical or physical changes of the whitening synthetic zirconium, and it is ensured that the whitening synthetic zirconium keeps stable performance in the using process. Due to the stability, the whitening synthetic zirconium can still keep good whiteness and gloss after being used and stored for a long time, and the whitening synthetic zirconium has excellent weather resistance.

Description

Technical Field

[0001] The invention relates to the technical field of whitening synthetic zirconium, in particular to a method for preparing whitening synthetic zirconium for building ceramics based on tailings sand. Background Art

[0002] Tailings sand whitening synthetic zirconium may be a specific process or product involving the reuse of tailings sand and the synthesis of zirconium materials. Tailings sand is a waste material generated during mining and processing, usually containing a variety of mineral components. In the context of resource recycling and environmental protection, the reuse of tailings sand has become an important research field. Whitening synthetic zirconium may refer to the synthesis of zirconium materials with whitening effects using zirconium elements or other related components in tailings sand through specific processes and technologies. This process may involve the pretreatment of tailings sand, the extraction and purification of zirconium elements, and subsequent synthesis and processing steps. By optimizing process parameters and formulas, the color, brightness, reflectivity and other properties of synthetic zirconium can be regulated to achieve a whitening effect.

[0003] According to the patent number CN113773049B published on the China Patent Network, the present invention discloses a zircon sand whitening emulsion and a preparation process thereof. The whitening emulsion comprises the following raw materials in parts by weight: 10-15 parts of ultrafine zirconium silicate, 3-5 parts of apatite, 1-3 parts of calcined talc, and 3-5 parts of antibacterial particles; the antibacterial particles are blended with a silver-zinc composite, modified lime, and modified silicon dioxide, and then surface-treated with heptadecafluorodecyl triethoxysilane to obtain a mixed particle surface grafted with a large number of heptadecafluorodecyl groups to form a hydrophobic film, and then ultrasonically treated with polyvinyl alcohol, sintered to form a composite, and then pulverized to obtain antibacterial particles. The antibacterial particles have a hydrophobic layer on the surface to achieve a good anti-fouling effect, and the silver ions attached to the surface have a good bactericidal effect, so that the prepared ceramics are not prone to bacterial growth.

[0004] Whitening synthetic zirconium is needed in building ceramic projects, but most of the whitening synthetic zirconium currently on the market has a relatively slow sintering process during preparation and requires a long time of sintering for synthesis, which is time-consuming and labor-intensive. As a result, the whitening synthetic zirconium cannot be processed efficiently, affecting the normal use of the whitening synthetic zirconium and failing to bring convenience to users.

[0005] Therefore, it is necessary to design and modify the whitening synthetic zirconium to effectively prevent the phenomenon that the sintering process of the whitening synthetic zirconium is relatively slow during its preparation. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide a method for preparing whitened synthetic zirconium for building ceramics based on tailings sand, which has the advantages of fast and efficient sintering function and solves the problem of slow sintering process during the preparation of whitened synthetic zirconium.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a method for preparing whitened synthetic zirconium for building ceramics based on tailings sand, wherein the mass percentage of each component based on the total mass of the raw materials is as follows: tailings sand 80% to 92%, alumina 2% to 3, silicon dioxide 2% to 3.2%, whitening agent 0.1% to 2%, mineralizer 0.6% to 1.2%, stabilizer 0.5% to 2%, and sintering aid 0.6% to 1.3%.

[0008] As a preferred embodiment of the present invention, the brightener is a compound consisting of stilbene and coumarin.

[0009] As preferred in the present invention, the mass percentages of the components of the total mass of the brightener are as follows: 0.1% to 0.3% of diphenylethylene and 0.1% to 0.2% of coumarin.

[0010] As a preferred embodiment of the present invention, the mineralizer consists of fluoride, chloride and sulfate.

[0011] As a preferred embodiment of the present invention, the stabilizer is a mixture of at least two of metal oxides, silicates and rare earth elements.

[0012] As a preferred embodiment of the present invention, the sintering aid is composed of one or two of oxides, fluorides and chlorides.

[0013] As the present invention is preferred, comprising the following steps:

[0014] Step 1: Select high-purity, high-zirconium content tailings sand as the main raw material, and prepare appropriate amounts of auxiliary raw materials such as alumina and silica;

[0015] Step 2: Crush, screen and wash the tailings sand to remove impurities and harmful substances to ensure that the purity and particle size of the raw materials meet the synthesis requirements;

[0016] Step 3: Weigh the raw materials according to the ratio and add them into the mixer, adjust the mixer speed to 1000r / min for mixing;

[0017] Step 4: Place the mixed raw materials into a high-temperature furnace and conduct a solid-phase reaction under appropriate temperature and atmosphere. By controlling the reaction conditions, the zirconium element in the raw materials reacts chemically with other elements to generate synthetic zirconium. During the reaction, the reaction temperature can be reduced, the reaction rate and the purity of the product can be increased by adding an appropriate amount of sintering aids or mineralizers.

[0018] Step 5: After the reaction is completed, the product is taken out of the high temperature furnace and cooled naturally or forcedly. After cooling, the product is crushed to obtain particles of appropriate size;

[0019] Step 6: Remove large particles and impurities in the product by screening, then wash to remove surface attachments and residues, dry the washed product to remove excess water. After drying, package to obtain a whitening synthetic zirconium product for building ceramics;

[0020] Step 7: Use chemical analysis, X-ray diffraction, scanning electron microscopy and other methods to conduct chemical analysis, phase identification, whiteness test and other tests on the synthetic zirconium products to ensure that the quality and performance of the products meet the requirements;

[0021] Step 8: The manufactured whitened synthetic zirconium product is quantitatively filled and packaged by a quantitative filling machine, and a sealing test is performed after packaging.

[0022] As a preferred embodiment of the present invention, the multifunctional mixer is controlled to maintain a temperature of 55° C. for stirring, and has a high-efficiency temperature control function.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. A method for preparing a whitening synthetic zirconium for building ceramics based on tailings sand provided by the present invention, wherein the whitening synthetic zirconium significantly improves its whiteness and brightness by adding a specific whitening agent. This enables it to present a purer and brighter color when manufacturing products such as white pigments, coatings and ceramics, thereby improving the visual effect and attractiveness of the product. The stabilizer in the whitening synthetic zirconium can effectively prevent it from undergoing chemical or physical changes, ensuring that it maintains stable performance during use. This stability enables the whitening synthetic zirconium to maintain good whiteness and gloss during long-term use and storage. The whitening synthetic zirconium has excellent weather resistance and can resist erosion by harsh environmental conditions such as ultraviolet rays, high temperature and humidity. This enables it to maintain its whiteness and performance for a long time when used outdoors, such as in the fields of building coatings and plastic products. Since the whitening synthetic zirconium has the above-mentioned advantages, it is widely used in multiple fields such as ceramics, glass, coatings, plastics, rubber, inks, etc. In these fields, the whitening synthetic zirconium can significantly improve the performance and quality of the product and meet the diverse needs of the market. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] The invention provides a method for preparing whitening synthetic zirconium for building ceramics based on tailings sand. The mass percentage of each component based on the total mass of the raw materials is as follows: 80% to 92% of tailings sand, 2% to 3% of aluminum oxide, 2% to 3.2% of silicon dioxide, 0.1% to 2% of a whitening agent, 0.6% to 1.2% of a mineralizer, 0.5% to 2% of a stabilizer, and 0.6% to 1.3% of a sintering aid.

[0027] The present invention is further configured that the brightener is a compound consisting of stilbene and coumarin.

[0028] The present invention is further configured that the mass percentages of the components of the total mass of the brightener are as follows: 0.1% to 0.3% of diphenylethylene and 0.1% to 0.2% of coumarin.

[0029] The present invention is further configured such that the mineralizer consists of fluoride, chloride and sulfate.

[0030] The present invention is further configured such that the stabilizer is a mixture of at least two of metal oxides, silicates, and rare earth elements.

[0031] The present invention is further configured such that the sintering aid is composed of one or two of oxides, fluorides and chlorides.

[0032] The present invention is further configured to include the following steps:

[0033] Step 1: Select high-purity, high-zirconium content tailings sand as the main raw material, and prepare appropriate amounts of auxiliary raw materials such as alumina and silica;

[0034] Step 2: Crush, screen and wash the tailings sand to remove impurities and harmful substances to ensure that the purity and particle size of the raw materials meet the synthesis requirements;

[0035] Step 3: Weigh the raw materials according to the ratio and add them into the mixer, adjust the mixer speed to 1000r / min for mixing;

[0036] Step 4: Place the mixed raw materials into a high-temperature furnace and conduct a solid-phase reaction under appropriate temperature and atmosphere. By controlling the reaction conditions, the zirconium element in the raw materials reacts chemically with other elements to generate synthetic zirconium. During the reaction, the reaction temperature can be reduced, the reaction rate and the purity of the product can be increased by adding an appropriate amount of sintering aids or mineralizers.

[0037] Step 5: After the reaction is completed, the product is taken out of the high temperature furnace and cooled naturally or forcedly. After cooling, the product is crushed to obtain particles of appropriate size;

[0038] Step 6: Remove large particles and impurities in the product by screening, then wash to remove surface attachments and residues, dry the washed product to remove excess water. After drying, package to obtain a whitening synthetic zirconium product for building ceramics;

[0039] Step 7: Use chemical analysis, X-ray diffraction, scanning electron microscopy and other methods to conduct chemical analysis, phase identification, whiteness test and other tests on the synthetic zirconium products to ensure that the quality and performance of the products meet the requirements;

[0040] Step 8: The manufactured whitened synthetic zirconium product is quantitatively filled and packaged by a quantitative filling machine, and a sealing test is performed after packaging.

[0041] The present invention is further configured such that the control temperature of the multifunctional mixer is maintained at 55° C. for mixing, and has a high-efficiency temperature control function.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A whitening synthetic zirconium for building ceramics based on tailings sand, characterized in that: The mass percentage of each component based on the total mass of the raw materials is as follows: tailings sand 80% to 92%, alumina 2% to 3, silicon dioxide 2% to 3.2%, brightener 0.1% to 2%, mineralizer 0.6% to 1.2%, stabilizer 0.5% to 2%, and sintering aid 0.6% to 1.3%.

2. The whitening synthetic zirconium for architectural ceramics based on tailings sand according to claim 1, characterized in that: The brightener is a compound consisting of diphenylethylene and coumarin.

3. The whitening synthetic zirconium for architectural ceramics based on tailings sand according to claim 2, characterized in that: The mass percentages of the components of the total mass of the brightener are as follows: 0.1% to 0.3% of diphenylethylene and 0.1% to 0.2% of coumarin.

4. The whitening synthetic zirconium for architectural ceramics based on tailings sand according to claim 1, characterized in that: The mineralizer consists of fluoride, chloride and sulfate.

5. The whitening synthetic zirconium for architectural ceramics based on tailings sand according to claim 1, characterized in that: The stabilizer is a mixture of at least two of metal oxides, silicates and rare earth elements.

6. The whitening synthetic zirconium for architectural ceramics based on tailings sand according to claim 1, characterized in that: The sintering aid is composed of one or two of oxides, fluorides and chlorides.

7. The method for preparing a whitening synthetic zirconium for architectural ceramics based on tailings sand according to claim 1, comprising the following steps: Step 1: Select high-purity, high-zirconium content tailings sand as the main raw material, and prepare appropriate amounts of auxiliary raw materials such as alumina and silica; Step 2: Crush, screen and wash the tailings sand to remove impurities and harmful substances to ensure that the purity and particle size of the raw materials meet the synthesis requirements; Step 3: Weigh the raw materials according to the ratio and add them into the mixer, adjust the mixer speed to 1000r / min for mixing; Step 4: Place the mixed raw materials into a high-temperature furnace and conduct a solid-phase reaction under appropriate temperature and atmosphere. By controlling the reaction conditions, the zirconium element in the raw materials reacts chemically with other elements to generate synthetic zirconium. During the reaction, the reaction temperature can be reduced, the reaction rate and the purity of the product can be increased by adding an appropriate amount of sintering aids or mineralizers. Step 5: After the reaction is completed, the product is taken out of the high temperature furnace and cooled naturally or forcedly. After cooling, the product is crushed to obtain particles of appropriate size; Step 6: Remove large particles and impurities in the product by screening, then wash to remove surface attachments and residues, dry the washed product to remove excess water. After drying, package to obtain a whitening synthetic zirconium product for building ceramics; Step 7: Use chemical analysis, X-ray diffraction, scanning electron microscopy and other methods to conduct chemical analysis, phase identification, whiteness test and other tests on the synthetic zirconium products to ensure that the quality and performance of the products meet the requirements; Step 8: The manufactured whitened synthetic zirconium product is quantitatively filled and packaged by a quantitative filling machine, and a sealing test is performed after packaging.

8. The method for preparing whitening synthetic zirconium for architectural ceramics based on tailings sand according to claim 7, characterized in that: The multifunctional mixer maintains a controlled temperature of 55°C for mixing, and has an efficient temperature control function.