Method for preparing artificial gem ornaments by using slag of chicken-blood jade ore

Abstract

The present invention discloses a method for preparing artificial gem ornaments by using chicken blood jade slag, which comprises the following steps: 1) preparing the chicken blood jade slag into ultrafine powder, analyzing the chemical components of the ultrafine powder, and adding color-adjusting elements according to the color-adjusting requirements to obtain color-adjusted powder; 2) mixing the color-adjusted powder with a binder, pressing it into a mold, loading it into a sintering furnace, heating it to a preset temperature, slowly cooling it after constant temperature, taking out the fired product, removing the surface residues, and polishing it to obtain the product. The present invention can process and recycle waste slag, make artificial gems of different colors, turn waste into treasure, and has good economic benefits.

Description

Technical Field

[0001] The present invention belongs to the field of handicrafts. More specifically, the present invention relates to a method for preparing artificial gemstone ornaments using cinnabar jade ore slag. Background Art

[0002] Cinnabar jade ore was slowly formed by the penetration of cinnabar into kaolinite and dickite and their mutual blending during volcanic eruptions hundreds of millions of years ago; it is an extremely rare natural gemstone. The cinnabar jade ore in folklore usually contains minerals such as cinnabar, quartz, calcite, stibnite, dickite, kaolinite, dolomite, etc., and most of them contain sulfides such as mercury sulfide and silicate minerals. Cinnabar jade is composed of two parts, "ground" and "blood". Usually, people think that the mineral composition of "blood" is mainly cinnabar. The "ground" part is mainly dickite and also contains a considerable amount of kaolinite, alunite, halloysite, quartz, pyrite, etc. In China, the places where cinnabar jade has been discovered are: cinnabar jade ore produced in Longsheng, Guilin, Guangxi; cinnabar jade ore produced in Xunyang County, Ankang, Shaanxi; cinnabar jade ore produced in Changhua County, Lin'an City, Zhejiang. However, the mercury sulfide content in cinnabar jade from different production areas is different. For example, for the cinnabar jade ore produced in Longsheng, Guilin, Guangxi, the mineral hardness: Mohs hardness is 6.5 - 7 degrees; chemical composition: mainly contains quartz, chalcedony, iron(III) oxide, manganese, zinc, aluminum and other metal minerals. The color-developing component of its "blood" is iron-containing silica, rather than mercury sulfide. This kind of cinnabar jade ore with iron-containing silica as the color-developing component is extremely rare. In order to protect the environment and mineral resources, mining has been explicitly prohibited. Therefore, the original cinnabar jade ore used for processing various jewelry and handicrafts will become less and less. In order to meet the market demand, considering that there were a large number of tailings accumulated during the past mining process, if new technologies can be developed to process and recycle the waste ore slag and turn waste into treasure, there will be good economic benefits. Summary of the Invention

[0003] One object of the present invention is to solve at least the above problems and provide at least the advantages described hereinafter.

[0004] One object of the present invention is to provide a method for preparing artificial gemstone ornaments using cinnabar jade ore slag, which can process and recycle the waste ore slag, make artificial gemstones of different colors, turn waste into treasure, and has good economic benefits.

[0005] To achieve these objects and other advantages of the present invention, there is provided a method for preparing artificial gemstone ornaments using cinnabar jade ore slag, which includes the following steps:

[0006] 1) Prepare the cinnabar jade ore slag into ultrafine powder, conduct chemical composition analysis on the ultrafine powder, and add color-adjusting elements according to the color-matching requirements to obtain color-adjusted powder;

[0007] 2) The coloring powder is mixed with a binder, pressed into shape, loaded into a sintering furnace, heated to a preset temperature, kept at a constant temperature and then slowly cooled. After taking out the sintered product, the surface residues are removed and polished to obtain the finished product.

[0008] Preferably, the chicken blood jade slag is crushed into particles with a particle size < 3 mm. The crushed material is loaded into a sintering crucible and rapidly heated to above 500 °C in a muffle furnace for thermal softening for 10 - 20 min. Then the softened crushed material is loaded into a grinding device for extrusion grinding. The grinding pressure is 50 - 150 Kg / cm. After the temperature of the ground clinker powder is lower than 50 °C, it is transferred to an electromagnetic impact crusher for impact crushing. The magnetic field attenuation oscillation frequency is 500 - 1500 Hz, the demagnetizing field strength is 50 - 150 Oe, and the impact force is 10 - 30 Kg to obtain fine powder with a particle size < 0.2 mm. Then these fine powders are loaded into a centrifugal ball mill for ball milling again to obtain ultrafine powder with a particle size < 10 μm.

[0009] Preferably, the binder is paraffin wax.

[0010] Preferably, alumina powder is laid on the blank pressed into shape in the sintering crucible.

[0011] Preferably, in step 2), it is heated to a preset temperature of 2000 - 2300 °C and kept at a constant temperature for 1 - 5 h.

[0012] Preferably, when performing chemical composition analysis on the ultrafine powder in step 1), if the content of (SiO2) in the ultrafine powder is 70% - 80%; the content of (FeO + Fe2O3) ≤ 5%; the content of Mn element is 1% - 10%, and other elements are 0 - 15%, a coloring substance Fe3O4 is added to make the content of (Fe3O4) in the ultrafine powder reach 10% - 15% to meet the requirements for modulating dark red ornaments.

[0013] Preferably, when performing chemical composition analysis on the ultrafine powder in step 1), if the content of (SiO2) in the ultrafine powder ≤ 75%; the content of (HgS) ≥ 5%; the content of (FeO + Fe2O3) ≤ 2.5%; the content of Mn element is 1% - 10%, and other elements are 5% - 15%, (HgS) is purified and removed, and a coloring substance Fe3O4 is added to make the content of (Fe3O4) in the ultrafine powder reach 5% - 10%, and a coloring substance SiO2 is added to make the content of (SiO2) in the ultrafine powder reach 80% - 85% to meet the requirements for modulating light red ornaments.

[0014] Preferably, when performing chemical composition analysis on the ultrafine powder in step 1), the content of (SiO2) in the ultrafine powder is 70%-80%; the content of (HgS) ≤ 2%; the content of (FeO + Fe2O3) ≤ 2.5%; the content of Mn element is 1%-5%, and the content of other elements is 15%-25%. When the content of the color-adjusting element Cr in the ultrafine powder reaches 5%-10%, yellow ornaments can be prepared.

[0015] Preferably, the ornament is one of a regular circular shape, a water droplet shape, an olive shape, a gourd shape, and a rectangular shape.

[0016] The present invention has at least the following beneficial effects:

[0017] First, the present invention can process and reuse waste slag to make artificial gemstones of different colors, turning waste into treasure, and having good economic benefits.

[0018] Second, the ultrafine powder prepared by the present invention can be mixed more evenly with other additives, making the color of the product obtained after high-temperature sintering more uniform and the appearance closer to natural chicken blood jade.

[0019] Third, the content of iron element in the chicken blood jade slag is relatively high. During the powder-making process, static electricity is generated due to friction, generating a magnetic field, which makes the material easy to agglomerate and difficult to disperse. On the one hand, high-temperature softening in the present invention helps to accelerate pulverization, and on the other hand, demagnetization treatment is carried out using high temperature to avoid agglomeration during the later grinding process. The crushed materials are loaded into the grinding device for extrusion grinding and electromagnetic vibration impact crushing, which helps to eliminate the magnetic field generated by static electricity during the extrusion grinding process, playing a demagnetization role, thus avoiding agglomeration during the ball milling process and helping to accelerate the grinding speed.

[0020] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Beads prepared from natural chicken blood jade and beads prepared in Example 1;

[0022] Figure 2 Beads prepared in Example 3 and the slag used in Example 3. DETAILED DESCRIPTION OF THE INVENTION

[0023] The following further describes the present invention in detail with reference to the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0024] It should be understood that terms such as "having", "comprising", and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0025] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials, unless otherwise specified, can be obtained from commercial sources.

[0026] The present invention provides a method for preparing artificial gemstone ornaments using chicken blood jade slag, which comprises the following steps:

[0027] 1) Prepare the chicken blood jade slag into ultrafine powder, conduct chemical composition analysis on the ultrafine powder, and add color-adjusting elements according to the color-matching requirements to obtain color-adjusted powder;

[0028] 2) Mix the color-adjusted powder with a binder, press it into a mold, load it into a sintering furnace, raise the temperature to a preset temperature, keep it at a constant temperature and then slowly cool it down, take out the fired product to remove the surface residues, and polish it to obtain the ornament.

[0029] In another technical solution, the chicken blood jade slag is crushed into particles with a particle size < 3 mm, the crushed material is loaded into a sintering crucible, and after being rapidly heated to a high temperature above 500 °C in a muffle furnace for 10 - 20 min for thermal softening, then the softened crushed material is loaded into a grinding device for extrusion grinding, the grinding pressure is 50 - 150 Kg / cm, after the temperature of the ground clinker powder is lower than 50 °C, it is then transferred to an electromagnetic impact crusher for impact crushing, the magnetic field attenuation oscillation frequency is 500 - 1500 Hz, the demagnetizing field strength is 50 - 150 Oe, and the impact force is 10 - 30 Kg to obtain fine powder with a particle size < 0.2 mm, and then these fine powders are loaded into a centrifugal ball mill can for ball milling again to obtain ultrafine powder with a particle size < 10 μm.

[0030] In another technical solution, the binder is paraffin wax.

[0031] In another technical solution, alumina powder is laid on the blank pressed into the sintering crucible.

[0032] In another technical solution, in step 2), the temperature is raised to a preset temperature of 2000 - 2300 °C and kept at a constant temperature for 1 - 5 h.

[0033] In another technical solution, when conducting chemical composition analysis on the ultrafine powder in step 1), if the content of (SiO2) in the ultrafine powder is 70% - 80%; the content of (FeO + Fe2O3) ≤ 5%; the content of Mn element is 1% - 1%, other elements are 0 - 15%, add the color-adjusting substance Fe3O4 to make the content of (Fe3O4) in the ultrafine powder reach 10% - 15% to meet the requirements for modulating dark red ornaments.

[0034] In another technical solution, when performing chemical composition analysis on the ultrafine powder in step 1), when the content of (SiO2) in the ultrafine powder is ≤ 75%; the content of (HgS) is ≥ 5%; the content of (FeO + Fe2O3) is ≤ 2.5%; the content of Mn element is 1% - 10%, and the content of other elements is 5% - 15%, (HgS) is purified and removed, and the color-adjusting substance Fe3O4 is added to make the content of (Fe3O4) in the ultrafine powder reach 5% - 10%, and the color-adjusting substance SiO2 is added to make the content of (SiO2) in the ultrafine powder reach 80% - 85% to meet the requirements of a light red decorative part.

[0035] In another technical solution, when performing chemical composition analysis on the ultrafine powder in step 1), when the content of (SiO2) in the ultrafine powder is 70% - 80%; the content of (HgS) is ≤ 2%; the content of (FeO + Fe2O3) is ≤ 2.5%; the content of Mn element is 1% - 5%, and the content of other elements is 15% - 25%, the color-adjusting element Cr element is added to the ultrafine powder until the content of (Cr) reaches 5% - 10% to meet the requirements of a yellow decorative part.

[0036] In another technical solution, the decorative part is one of a regular circle, a sphere, a water droplet shape, an olive shape, a gourd shape, and a rectangle.

[0037] Example 1

[0038] Select light red chicken blood jade slag, promptly 3mm following particle coarse material 5Kg is packed in the sintering boat, be rapidly heated to the high temperature more than 500 ℃ through muffle furnace and carry out thermal softening 15min, then softened broken material is packed in the grinding device and extrusion milling, milling pressure is 100Kg / cm, after the grog powder temperature milled out is lower than 50 ℃, be transferred to the electromagnetic impact pulverizer impact crushing again, magnetic field attenuation oscillation frequency is 1000Hz, and demagnetization field intensity is 100Oe, impact force 20Kg, obtain particle size<0.2mm fine powder, then again these fine powders are packed into ball milling in the centrifugal ball milling jar, obtain the ultrafine powder of particle<10 μ m.Then ultrafine powder is carried out chemical composition analysis, and its result is (SiO 2 ) content is 78%, (FeO+Fe 2 O 3 ) content is 3.5%, (Mn) elemental content is 5%, and other element contents are 13.5%. According to the analysis results, the content of the main chemical components (FeO+Fe2O3) that play a role in chicken blood color is on the low side, and it is necessary to appropriately add high-priced Fe3O4 to achieve the deep red requirement. In this embodiment, Fe3O4 is added to make the (Fe3O4) content in the ultrafine powder reach 12%. In order to facilitate molding, it is usually necessary to add a binder such as paraffin wax and mix them evenly, and then use a press to press and mold. The pressed blank is placed in a sintering boat and alumina powder is applied to prevent the blank from deforming during the sintering process. The sintering boat containing the blank is then sent into the furnace and heated and sintered. When the temperature reaches a high temperature of 2100℃, the temperature is kept constant for 1 hour, and then the temperature is slowly lowered. After the temperature in the sintering furnace is lower than 100℃, the fired product is taken out, the surface residue is removed, and polishing is performed to obtain a processed red product.

[0039] The product in this embodiment can also be made into beads, brand pendants and other accessories. Figure 1 shown. Figure 1 A is natural chicken blood jade and the beads made from it, and B is beads made by crushing slag into blanks and then firing them.

[0040] Example 2

[0041] Select dark red chicken blood jade slag, that is, 5 Kg of coarse materials with a particle size of less than 3 mm are loaded into a sintering boat, and the temperature is quickly raised to a high temperature above 500 °C in a muffle furnace for thermal softening for 20 min. Then, the softened crushed materials are loaded into a grinding device for extrusion grinding. The grinding pressure is 50 Kg / cm. After the temperature of the ground clinker powder is lower than 50 °C, it is transferred to an electromagnetic impact crusher for impact crushing. The magnetic field attenuation oscillation frequency is 500 Hz, the demagnetizing field strength is 50 Oe, and the impact force is 10 Kg. Fine powder with a particle size of <0.2 mm is obtained. Then, these fine powders are loaded into a centrifugal ball mill for ball milling again to obtain ultrafine powder with a particle size of <10 μm. Next, chemical composition analysis is carried out. The results show that the content of (SiO2) in the ultrafine powder is 74%, the content of (HgS) is 11%, the content of (FeO + Fe2O3) is 2.1%, the content of (Mn) is 2%, and the others are 10.9%. According to the analysis results, the content of mercury sulfide is on the high side, and HgS must be purified and removed. Appropriate addition of high-valent Fe3O4 is required to meet the requirement of light red color. In this example, Fe3O4 is added to make the content of (Fe3O4) in the ultrafine powder reach 5%, and SiO2 is added to increase the content of (SiO2) from 74% to 80% in the ultrafine powder. To facilitate molding, a binder such as paraffin is usually added and mixed evenly, and then it is pressed into shape by a press. The molded blank is loaded into a sintering boat, and alumina powder is laid to prevent the blank from deforming during the sintering process. Then, they are sent into the furnace for heating and sintering. When the temperature rise reaches a high temperature of 2100 °C, it is kept at a constant temperature for 1 hour, and then slowly cooled. The product that has been sintered can be taken out only after the temperature in the sintering furnace is lower than 100 °C. Finally, the surface residues are removed and polished to obtain a processed light red product.

[0042] In this example, the product can also be made into ornaments such as beads, brand pendants, etc.

[0043] Example 3

[0044] Select variegated chicken-blood jade slag, that is, 5 Kg of coarse materials with particle size below 3 mm are loaded into a sintering boat, and are rapidly heated to a high temperature above 500 °C in a muffle furnace for thermal softening for 10 min. Then the softened crushed materials are loaded into a grinding device for extrusion grinding. The grinding pressure is 150 Kg / cm. After the temperature of the ground clinker powder is lower than 50 °C, it is transferred to an electromagnetic impact crusher for impact crushing. The magnetic field attenuation oscillation frequency is 1500 Hz, the demagnetizing field strength is 150 Oe, and the impact force is 30 Kg, to obtain fine powder with particle size <0.2 mm. Then these fine powders are loaded into a centrifugal ball mill for ball milling again to obtain ultrafine powder with particle size <10 μm. Then chemical composition analysis is carried out. The results show that the content of (SiO2) in the ultrafine powder is 76%, the content of (HgS) is 1%, the content of (FeO + Fe2O3) is 2.1%, the content of (Mn) is 2%, and the content of other elements is 19.9%. According to the analysis results, the content of mercury sulfide is small, and the influence of HgS on color formulation does not need to be considered. Only by appropriately adding Cr can the required yellow color be formulated. In this example, chromium oxide is added to the ultrafine powder until the content of (Cr) reaches 5%. To facilitate molding, a binder such as paraffin is usually added and mixed evenly, and then it is pressed into shape by a press. The shaped blank is loaded into a sintering boat, and alumina powder is laid to prevent the blank from deforming during the sintering process. Then they are sent into the furnace for heating and sintering. When the temperature rise reaches a high temperature of 2150 °C, it is kept at a constant temperature for 1 hour, and then cooled slowly. The products that have been sintered can be taken out only after the temperature in the sintering furnace is lower than 100 °C. Finally, the surface residues are removed and polished to obtain the processed yellow products.

[0045] In this example, the product can also be made into ornaments such as beads, brand pendants, etc. When making beads, as Figure 2 shown. Figure 2 In it, A is the bead prepared in this example, and B is the slag used in this example.

[0046] <Effect test>

[0047] Test 1

[0048] The Mohs hardness of the products prepared in Examples 1-3 is shown in the following table.

[0049] Table 1 Mohs hardness of beads

[0050] Mohs hardness Example 1 6.3 Example 2 6.3 Example 3 6.2

[0051] From the results in Table 1, it can be seen that the Mohs hardness of chicken-blood jade is 6.5-7, and the Mohs hardness of the artificial beads prepared from chicken-blood jade slag by the present invention is 6.2-6.3, which is relatively close to the Mohs hardness of natural chicken-blood jade.

[0052] Test 2

[0053] Comparative Example 1

[0054] The preparation method of Example 1 is adopted, with the difference that the particle size of the ultrafine powder is less than 15 μm, and the mixing time of the ultrafine powder and Fe3O4 by stirring is 30 min.

[0055] Comparative Example 2

[0056] The preparation method of Example 1 is adopted, with the difference that the preparation method of the ultrafine powder is different. Specifically, light red chicken-blood jade slag is selected, that is, the coarse material with particles below 3 mm is loaded into a grinding device for extrusion and grinding. The grinding pressure is 100 Kg / cm. After the temperature of the ground clinker powder is lower than 50 °C, these fine powders are loaded into a centrifugal ball mill for ball milling again to obtain ultrafine powder with particles < 10 μm. The mixing time of the ultrafine powder and Fe3O4 by stirring is 30 min.

[0057] Example 1

[0058] The mixing time of the ultrafine powder and Fe3O4 by stirring is 30 min.

[0059] Table 2 Uniformity of beads

[0060] Color uniformity Degree of similarity in appearance to natural chicken-blood jade Comparative Example 1 Uneven color, with spots Large appearance difference Comparative Example 2 Uneven color, with spots Large appearance difference Example 1 Uniform color Relatively close appearance

[0061] It can be seen from the results in Table 2 that the results of Comparative Example 1 and Example 1 show that the particle size of the ultrafine powder has a great influence on the appearance of the product. In the present invention, the particle size of the ultrafine powder is controlled below 10 μm, and the color of the product is relatively uniform, and the appearance is also relatively close to that of natural chicken-blood jade. The results of Example 1 and Comparative Example 2 show that when preparing the ultrafine powder in the present invention, through the demagnetization treatment of high-temperature softening and electromagnetic impact crushing, the color and appearance of the product are relatively close to those of natural chicken-blood jade. The possible reason is that after the demagnetization treatment, the ultrafine powder can be more uniformly mixed with Fe3O4, so that the color of the processed product is more uniform and the appearance is closer to that of natural chicken-blood jade.

[0062] Experiment Three

[0063] Comparative Example 3

[0064] Select light red chicken-blood jade slag, that is, 5 Kg of coarse material with particles below 3 mm is loaded into a sintering boat, and it is quickly heated to 500 °C in a muffle furnace for thermal softening, and then kept at a constant temperature for 15 minutes. The softened crushed material is poured into a grinding device for extrusion and grinding. When the temperature of the ground clinker powder is lower than 50 °C, it is transferred to an electromagnetic impact crusher. The magnetic field attenuation oscillation frequency is 1000 Hz, the demagnetizing field strength is 100 Oe, and the impact force applied is 20 Kg to obtain fine powder with particle size < 0.2 mm. The time used when the powder yield of the fine powder reaches 90% is counted, and then 90% of these fine powders are loaded into a centrifugal ball mill for ball milling again to obtain ultrafine powder with particles < 10 μm. The time used when the powder yield of the ball-milled fine powder and the ultrafine powder reaches 80% is counted.

[0065] Comparative Example 4

[0066] Select light red chicken blood jade slag, that is, 5 Kg of coarse material with particles below 3 mm is loaded into a sintering boat, and it is rapidly heated to 400 °C in a muffle furnace for thermal softening, then kept at a constant temperature for 15 minutes. The softened crushed material is poured into a grinding device for extrusion grinding. After the temperature of the ground clinker powder is lower than 50 °C, it is transferred to an electromagnetic impact crusher with a magnetic field decay oscillation frequency of 1000 Hz, a demagnetizing field strength of 10 Oe, and an applied impact force of 20 Kg to obtain fine powder with particle size < 0.2 mm. The time used when the powder yield of the fine powder reaches 90% is counted. Then, this 90% of the fine powder is loaded into a centrifugal ball mill jar for ball milling to obtain ultrafine powder with particles < 10 μm. The time used when the powder yield of the ball-milled fine powder and the ultrafine powder reaches 80% is counted.

[0067] Comparative Example 5

[0068] Select light red chicken blood jade slag, that is, 5 Kg of coarse material with particles below 3 mm is loaded into a sintering boat, and it is rapidly heated to 500 °C in a muffle furnace for 15 min of thermal softening, then the softened crushed material is loaded into a grinding device for extrusion grinding to obtain fine powder with particle size < 0.2 mm. The time used when the powder yield of the fine powder reaches 90% is counted. Then, this 90% of the fine powder is loaded into a centrifugal ball mill jar for ball milling to obtain ultrafine powder with particles < 10 μm. The time used when the powder yield of the ball-milled fine powder and the ultrafine powder is 80% is counted.

[0069] Comparative Example 6

[0070] Select light red chicken blood jade slag, that is, 5 Kg of coarse material with particles below 3 mm is loaded into a grinding device for grinding. After the temperature of the ground clinker powder is lower than 50 °C, it is transferred to an electromagnetic impact crusher with a magnetic field decay oscillation frequency of 1000 Hz, a demagnetizing field strength of 100 Oe, and an applied impact force of 20 Kg to obtain fine powder with particle size < 0.2 mm. The time used when the powder yield of the fine powder reaches 90% is counted. Then, this 90% of the fine powder is loaded into a centrifugal ball mill jar for ball milling to obtain ultrafine powder with particles < 10 μm. The time used when the powder yield of the ball-milled fine powder and the ultrafine powder reaches 80% is counted.

[0071] The preparation time of the ultrafine powder is the sum of the time used when the powder yield of the fine powder reaches 90% and the time used when the powder yield of the ultrafine powder reaches 80%. The results are shown in Table 3.

[0072] Table 3 Preparation Time of Ultrafine Powder

[0073] Ultra-fine powder preparation time (h) Comparative Example 3 5.2 Comparative Example 4 6.1 Comparative Example 5 8.4 Comparative Example 6 6.5

[0074] As can be seen from the results in Table 3, the results of Comparative Example 3 and Comparative Example 4 show that the increase in softening temperature and the increase in demagnetizing field strength significantly shorten the time required for the preparation of ultrafine powder; the results of Comparative Example 3 and Comparative Example 5 show that electromagnetic impact crushing of the softened material can significantly shorten the time required for the preparation of ultrafine powder; the results of Comparative Example 3 and Comparative Example 6 show that high-temperature softening can shorten the time required for the preparation of ultrafine powder.

[0075] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to specific details and the examples shown and described herein.

Claims

1. A method for preparing artificial gemstone ornaments using chicken blood jade ore slag, characterized in that, It includes the following steps: 1) Prepare the chicken-blood jade slag into ultrafine powder, conduct chemical composition analysis on the ultrafine powder, and add color-tuning elements according to the color-tuning requirements to obtain color-tuning powder; crush the chicken-blood jade slag into particles with a particle size < 3 mm, load the crushed material into a sintering boat, rapidly heat it to above 500 °C in a muffle furnace for thermal softening for 10 - 20 min, then load the softened crushed material into a grinding device for extrusion grinding, the grinding pressure is 50 - 150 kg / cm, after the temperature of the ground clinker powder is lower than 50 °C, transfer it to an electromagnetic impact crusher for impact crushing, the magnetic field attenuation oscillation frequency is 500 - 1500 Hz, the demagnetizing field strength is 50 - 150 Oe, the impact force is 10 - 30 kg, to obtain fine powder with a particle size < 0.2 mm, and then load these fine powders into a centrifugal ball mill for ball milling again to obtain ultrafine powder with particles < 10 µm; When conducting chemical composition analysis on the ultrafine powder, if the SiO2 content in the ultrafine powder is 70% - 80%; the FeO + Fe2O3 content ≤ 5%; the Mn element content is 1% - 10%, and other elements are 0 - 15%, add the color-tuning substance Fe3O4 to make the Fe3O4 content in the ultrafine powder reach 10% - 15% to meet the requirements for modulating dark red ornaments; When conducting chemical composition analysis on the ultrafine powder, if the SiO2 content in the ultrafine powder ≤ 75%; the HgS content ≥ 5%; the FeO + Fe2O3 content ≤ 2.5%; the Mn element content is 1% - 10%, and other elements are 5% - 15%, purify and remove HgS, and add the color-tuning substance Fe3O4 to make the Fe3O4 content in the ultrafine powder reach 5% - 10%, and add the color-tuning substance SiO2 to make the SiO2 content in the ultrafine powder reach 80% - 85% to meet the requirements for modulating light red ornaments; When conducting chemical composition analysis on the ultrafine powder, if the SiO2 content in the ultrafine powder is 70% - 80%; the HgS content ≤ 2%; the FeO + Fe2O3 content ≤ 2.5%; the Mn element content is 1% - 5%, and other elements are 15% - 25%, add the Cr element to the ultrafine powder until the Cr content reaches 5% - 10% to meet the requirements for modulating yellow ornaments; 2) Mix the color-tuning powder with a binder, press it into shape, load the shaped blank into a sintering boat, lay alumina powder, then send the sintering boat with the blank into the furnace chamber, heat it to the preset temperature, keep it at a constant temperature and then slowly cool it, take out the fired product, remove the surface residues, and polish it to obtain.

2. The method for preparing artificial gem ornaments using chicken blood jade slag according to claim 1, characterized in that, The binder is paraffin.

3. The method for preparing artificial gemstone ornaments using chicken blood jade slag according to claim 1, characterized in that In step 2), heat it to the preset temperature of 2000 - 2300 °C and keep it at a constant temperature for 1 - 5 h.

4. The method for preparing artificial gemstone ornaments using chicken blood jade slag according to claim 1, characterized in that, The ornament is one of a regular circle, a sphere, a water droplet shape, an olive shape, a gourd shape, and a rectangle.

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