CN115304402B - Method for changing yellow jade into red jade - Google Patents
Method for changing yellow jade into red jade Download PDFInfo
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- CN115304402B CN115304402B CN202210942828.3A CN202210942828A CN115304402B CN 115304402 B CN115304402 B CN 115304402B CN 202210942828 A CN202210942828 A CN 202210942828A CN 115304402 B CN115304402 B CN 115304402B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/0072—Heat treatment
Abstract
The invention relates to a method for changing yellow jade into red jade, belonging to the technical field of jade color changing. The invention carries out peeling treatment on yellow jade stone; the method comprises the steps of laying coloring agent powder in a heating container, placing peeled yellow jade on the coloring agent powder, laying the coloring agent powder on the peeled yellow jade, heating to a preset temperature at a constant speed to perform heat treatment for color change, and cooling to room temperature to obtain red jade. The invention simulates the environment generated by red jade in the nature by a colorant-assisted burning method, changes the color of yellow jade into red jade, can improve the quality value of the yellow jade, does not influence the original compact structure of the jade, does not damage the toughness and durability of the jade, and retains the transparency and water head of the jade.
Description
Technical Field
The invention relates to a method for changing yellow jade into red jade, belonging to the technical field of jade color changing.
Background
Compared with yellow jade, red jade has a rare output in nature and is more popular among people in color. And red jadeite can be changed into from yellow jadeite in nature, minerals such as limonite exist among yellow jadeite crystal particles, hematite is formed through dehydration or oxidation, and at the moment, ferrous ions are changed into ferric ions, so that the jadeite is changed into red.
As a common jade optimization treatment means, the heat treatment can change yellow jade into red jade with stable color on the premise of not destroying the structural stability of the jade, so that the quality value of the original yellow jade can be improved. But traditional heat treatment change look emerald lacks effective colorant, can improve heating temperature or extension heating time in order to obtain obvious change look effect, nevertheless can make emerald reduce original flood peak and transparency in a large number like this, can not effectively promote the quality value of original emerald.
Disclosure of Invention
Aiming at the problem that the water head and the transparency can be obviously reduced by the traditional heat treatment color changing, the invention provides a method for changing yellow jade into red jade, namely divalent iron ions are converted into trivalent iron ions by a colorant-assisted embedding burning method, the environment generated by the red jade in the nature is simulated, the color of the yellow jade can be changed into the red jade in a shorter time and at a lower temperature, the transparency and the water head of the jade are reserved, the original compact structure of the jade is not influenced, the toughness and the durability of the jade are not damaged, and the quality value of the yellow jade can be improved.
A method for changing yellow jade into red jade comprises the following specific steps:
(1) Peeling the yellow jade stone;
(2) Laying colorant powder in a heating container, placing peeled yellow jade on the colorant powder, laying the colorant powder on the peeled yellow jade, heating at a constant speed to a preset temperature for heat treatment color change, and cooling to room temperature to obtain red jade;
the colorant in the step (2) is ferrous carbonate or ferrous oxide;
the addition amount of the colorant powder is 2.5 to 3 times of the volume of the yellow jade;
the preset temperature of the step (2) is 450-500 ℃, the constant temperature rise rate is 2.5-5 ℃/min, and the heat treatment color changing time is 6.5-10 h.
The beneficial effects of the invention are:
(1) Compared with dyed red jades, the method simulates the environment generated by the red jades in nature through a colorant-assisted embedding method, and changes the yellow jades into the red jades, so that the red jades are more natural in color quality, more uniform in color distribution, and more stable and non-discoloring in the changed colors;
(2) The invention keeps the transparency and water head of the jade by a colorant-assisted embedding method, does not damage the original compact jade structure, and the jade after color change has higher durability;
(3) The method is suitable for the natural yellow jade with changed color, has wide variety, is not limited by the size, shape and quality of the jade, can perform batch treatment on the jade after primary classification, and has high efficiency;
(4) The invention adopts the coloring agents (ferrous carbonate and ferrous oxide) for auxiliary heat treatment, so that the heat treatment process is more simulated for the generation condition of natural red jade, the color changing effect is obviously improved compared with the heat treatment without the coloring agents, and simultaneously, the color tone difference of the color after color changing can be better regulated and controlled.
Drawings
FIG. 1 is a comparison of jadeite of example 1 before and after changing color;
FIG. 2 is a comparison of jadeite of example 2 before and after color change;
FIG. 3 is a comparison of jadeite of example 3 before and after changing color;
FIG. 4 is a comparison of jadeite of example 4 before and after changing color;
fig. 5 is a comparison of the jade of example 5 before and after changing color.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but the scope of the present invention is not limited to the description.
Example 1: a method for changing yellow jade into red jade comprises the following specific steps:
(1) Peeling the yellow jade stone;
(2) Uniformly paving colorant powder (ferrous carbonate powder) in a heating container, wherein the addition amount of the colorant powder (ferrous carbonate powder) is 1.5 times of the volume of yellow jade;
(3) Placing the peeled yellow jade on colorant powder (ferrous carbonate powder), and uniformly laying the colorant powder (ferrous carbonate powder) on the peeled yellow jade, wherein the addition amount of the colorant powder (ferrous carbonate powder) is 1.5 times of the volume of the yellow jade; then, uniformly heating to a preset temperature of 500 ℃ at a heating rate of 5 ℃/min, carrying out constant-temperature heat treatment at the temperature of 500 ℃ to change the color for 8h, and cooling to room temperature to obtain red jade;
this embodiment jadeite changes look see fig. 1 before and after the look, and can know from fig. 1, the jadeite after changing the look is reddish brown jadeite, and there is not obvious loss in original transparency of jadeite and flood peak.
Example 2: a method for changing yellow jade into red jade comprises the following specific steps:
(1) Peeling the yellow jade stone;
(2) Uniformly paving colorant powder (ferrous carbonate powder) in a heating container, wherein the addition amount of the colorant powder (ferrous carbonate powder) is 1.3 times of the volume of yellow jade;
(3) Placing the peeled yellow jade on the coloring agent powder (ferrous carbonate powder), and then uniformly paving the coloring agent powder (ferrous carbonate powder) on the peeled yellow jade, wherein the addition amount of the coloring agent powder (ferrous carbonate powder) is 1.5 times of the volume of the yellow jade; then, uniformly heating to a preset temperature of 450 ℃ at a heating rate of 4.5 ℃/min, carrying out constant-temperature heat treatment at the temperature of 450 ℃ to change the color for 10h, and cooling to room temperature to obtain red jade;
the comparison of the jadeite before and after the color change of this embodiment is shown in fig. 2, and it can be known from fig. 2 that the jadeite after the color change is bright red jadeite, and there is not obvious loss in original transparency and flood peak of jadeite.
Example 3: a method for changing yellow jade into red jade comprises the following specific steps:
(1) Peeling the yellow jade stone;
(2) Uniformly paving coloring agent powder (ferrous carbonate powder) in a heating container, wherein the adding amount of the coloring agent powder (ferrous carbonate powder) is 1.3 times of the volume of yellow jade;
(3) Placing the peeled yellow jade on colorant powder (ferrous carbonate powder), and uniformly laying the colorant powder (ferrous carbonate powder) on the peeled yellow jade, wherein the addition amount of the colorant powder (ferrous carbonate powder) is 1.5 times of the volume of the yellow jade; then, uniformly heating to a preset temperature of 450 ℃ at a heating rate of 3 ℃/min, carrying out constant-temperature heat treatment at the temperature of 450 ℃ to change the color for 6.5h, and cooling to room temperature to obtain red jade;
the comparison of the jadeite before and after the color change is shown in fig. 3, and it can be seen from fig. 3 that the jadeite after the color change is orange red jadeite, and the original transparency and water head of the jadeite have no obvious loss.
Example 4: a method for changing yellow jade into red jade comprises the following specific steps:
(1) Peeling the yellow jade stone;
(2) Uniformly paving colorant powder (ferrous oxide powder) in a heating container, wherein the addition amount of the colorant powder (ferrous oxide powder) is 1.3 times of the volume of yellow jade;
(3) Placing the peeled yellow jade on the coloring agent powder (ferrous oxide powder), and then uniformly paving the coloring agent powder (ferrous carbonate powder) on the peeled yellow jade, wherein the addition amount of the coloring agent powder (ferrous carbonate powder) is 1.5 times of the volume of the yellow jade; then, uniformly heating to 500 ℃ at a heating rate of 2.5 ℃/min, carrying out constant-temperature heat treatment at 500 ℃ to change the color for 8h, and cooling to room temperature to obtain red jade;
this embodiment jadeite contrast before and after changing colour is seen in fig. 4, can know from fig. 4 that jadeite after changing colour is iron red jadeite, and there is not obvious loss in original transparency of jadeite and flood peak.
Example 5: a method for changing yellow jade into red jade comprises the following specific steps:
(1) Peeling the yellow jade stone;
(2) Uniformly paving coloring agent powder (ferrous oxide powder) in a heating container, wherein the adding amount of the coloring agent powder (ferrous oxide powder) is 1.5 times of the volume of yellow jade;
(3) Placing the peeled yellow jade on the coloring agent powder (ferrous oxide powder), and then uniformly paving the coloring agent powder (ferrous carbonate powder) on the peeled yellow jade, wherein the addition amount of the coloring agent powder (ferrous carbonate powder) is 1.5 times of the volume of the yellow jade; then, uniformly heating to a preset temperature of 450 ℃ at a heating rate of 5 ℃/min, carrying out constant-temperature heat treatment at the temperature of 450 ℃ to change the color for 10h, and cooling to room temperature to obtain red jade;
the comparison of the jadeite before and after the color change of this embodiment is shown in fig. 5, and it can be known from fig. 5 that the jadeite after the color change is brownish red jadeite, and there is not obvious loss in original transparency and flood peak of jadeite.
The invention can adjust the type and the amount of the colorant powder according to the color and the transparency of the jadeite to be changed, and simulate the environment generated by red jadeite in nature by controlling the heating rate, the preset temperature and the constant-temperature heat treatment color changing time to change the color of yellow jadeite into the target red jadeite.
For jadeite with darker color and sufficient water head, a color changing method with high temperature (500 ℃), fast temperature rise rate (5 ℃/min) and short heat preservation time (8 hours) can be adopted; for emerald with light color and water head difference, a color changing method with low temperature (450 ℃), slow temperature rise speed (2.5 ℃/min) and long heat preservation time (10 hours) is suggested, so that the color changing effect can be considered, and the original transparency and water head can be kept.
The color changing effect of two different heat treatment coloring agents is slightly different, the ferrous carbonate powder is selected to be brighter than the red hue presented by the final color changing of the ferrous oxide, and the red jade color tone presented by the color changing of the ferrous oxide is darker than the iron red.
While the present invention has been described in detail with reference to the specific embodiments thereof, the present invention is not limited to the embodiments described above, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (2)
1. A method for changing yellow jade into red jade is characterized in that: the method comprises the following specific steps:
(1) Peeling the yellow jade stone;
(2) Laying colorant powder in a heating container, placing peeled yellow jade on the colorant powder, laying the colorant powder on the peeled yellow jade, heating to a preset temperature at a constant speed for heat treatment color change, and cooling to room temperature to obtain red jade, wherein the colorant is ferrous carbonate or ferrous oxide, the preset temperature is 450-500 ℃, the constant temperature rate is 2.5-5 ℃/min, and the heat treatment color change time is 6.5-10h.
2. The method of changing yellow jade into red jade according to claim 1, wherein: the addition amount of the colorant powder is 2.5 to 3 times of the volume of the yellow jade.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210942828.3A CN115304402B (en) | 2022-08-08 | 2022-08-08 | Method for changing yellow jade into red jade |
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| CN202210942828.3A CN115304402B (en) | 2022-08-08 | 2022-08-08 | Method for changing yellow jade into red jade |
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| CN115304402A CN115304402A (en) | 2022-11-08 |
| CN115304402B true CN115304402B (en) | 2023-04-18 |
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