CN106365685B - Purification process of white artificial diamond - Google Patents
Purification process of white artificial diamond Download PDFInfo
- Publication number
- CN106365685B CN106365685B CN201610744994.7A CN201610744994A CN106365685B CN 106365685 B CN106365685 B CN 106365685B CN 201610744994 A CN201610744994 A CN 201610744994A CN 106365685 B CN106365685 B CN 106365685B
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- Prior art keywords
- white
- diamond
- artificial diamond
- acid
- white artificial
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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
- C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
- C04B41/5338—Etching
- C04B41/5353—Wet etching, e.g. with etchants dissolved in organic solvents
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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
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/72—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone involving the removal of part of the materials of the treated articles, e.g. etching
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention discloses a purification process of white artificial diamond, which comprises the following steps: adding the mixed solution of hydrochloric acid and nitric acid into a container containing the white artificial diamond, heating, boiling, cooling, and washing the white artificial diamond for 5-6 times; sequentially adding sulfuric acid and nitric acid, boiling, cooling, and washing the white artificial diamond with water for 5-6 times; then adding hydrofluoric acid, soaking for 8-10h, and washing the white artificial diamond with water for 8-10 times. The invention has the beneficial effects that: the purification process can effectively remove the metal inclusion on the surface of the white diamond, so that the white diamond has higher transparency and brighter color, and the quality of the purified white diamond is improved by more than 80 percent.
Description
Technical Field
The invention belongs to the technical field of artificial diamonds, and particularly relates to a purification process of white artificial diamonds.
Background
Synthetic diamond is a polycrystalline diamond formed by polymerizing diamond crystals having a diameter of 10 to 30 nm, and the synthetic diamond is mainly yellow and yellowish brown. With the improvement of artificial diamond in the aspects of equipment, technology, process and the like, the synthesis technology of the white artificial diamond has been successful at present, and the white artificial diamond is widely applied to the field of jewelry processing industry. However, the metal inclusions on the surface of the synthesized white artificial diamond are difficult to clean, so that the quality of the white diamond is greatly defective, and the quality of the whole white diamond is reduced.
Disclosure of Invention
The invention aims to overcome the defects and provide a process for purifying white artificial diamonds.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
a process for purifying white synthetic diamond comprises the following steps:
(1) mixing 1500mL of hydrochloric acid with the concentration of 36% -38% and 500mL of nitric acid with the concentration of 65% -68% to obtain acid liquid A;
(2) placing the synthesized white artificial diamond in a container, slowly adding acid solution A, heating and boiling for 5-6h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 5-6 times;
(3) sequentially adding 150mL of 95-98% sulfuric acid and 50mL of 65-68% nitric acid into a container, heating and boiling for 1-3h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 5-6 times;
(4) pouring hydrofluoric acid into the container, soaking for 8-10h, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 8-10 times.
Compared with the prior art, the invention has the beneficial effects that:
the purification process can effectively remove the metal inclusion on the surface of the white diamond, so that the white diamond has higher transparency and brighter color, and the quality of the purified white diamond is improved by more than 80 percent.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1
A process for purifying white synthetic diamond comprises the following steps: mixing 1500mL of hydrochloric acid with the concentration of 36% and 500mL of nitric acid with the concentration of 65% to obtain acid liquid A; putting the synthesized white artificial diamond into a container, slowly adding acid liquid A, heating and boiling for 5h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 5 times; sequentially adding 150mL of 95% sulfuric acid and 50mL of 65% nitric acid into the container, boiling for 1h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 5 times; pouring hydrofluoric acid into the container, soaking for 8h, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 10 times.
Example 2
A process for purifying white synthetic diamond comprises the following steps: mixing 1500mL of hydrochloric acid with the concentration of 36% and 500mL of nitric acid with the concentration of 65% to obtain acid liquid A; placing the synthesized white artificial diamond into a container, slowly adding acid solution A, heating and boiling for 6h, cooling for 20min, pouring out the acid solution A, and repeatedly cleaning the white artificial diamond with purified water for 5 times; sequentially adding 150mL of 95% sulfuric acid and 50mL of 65% nitric acid into the container, boiling for 2h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 5 times; pouring hydrofluoric acid into the container, soaking for 10h, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 10 times.
Example 3
A process for purifying white synthetic diamond comprises the following steps: mixing 1500mL of hydrochloric acid with the concentration of 38% and 500mL of nitric acid with the concentration of 68% to obtain acid liquid A; putting the synthesized white artificial diamond into a container, slowly adding acid liquid A, heating and boiling for 6h, cooling for 20min, pouring out the acid liquid A, and repeatedly cleaning the white artificial diamond with purified water for 6 times; sequentially adding 150mL of 98% sulfuric acid and 50mL of 68% nitric acid into the container, boiling for 3h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 6 times; pouring hydrofluoric acid into the container, soaking for 10h, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 10 times.
The purification process can effectively remove the metal inclusion on the surface of the white diamond, so that the white diamond has higher transparency and brighter color, and the quality of the purified white diamond is improved by more than 80 percent.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (1)
1. A process for purifying white synthetic diamond, comprising the steps of:
(1) mixing 1500mL of hydrochloric acid with the concentration of 36% -38% and 500mL of nitric acid with the concentration of 65% -68% to obtain acid liquid A;
(2) placing the synthesized white artificial diamond in a container, slowly adding acid solution A, heating and boiling for 5-6h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 5-6 times;
(3) sequentially adding 150mL of 95-98% sulfuric acid and 50mL of 65-68% nitric acid into a container, heating and boiling for 1-3h, cooling for 20min, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 5-6 times;
(4) pouring hydrofluoric acid into the container, soaking for 8-10h, pouring out the liquid, and repeatedly cleaning the white artificial diamond with purified water for 8-10 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744994.7A CN106365685B (en) | 2016-08-29 | 2016-08-29 | Purification process of white artificial diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744994.7A CN106365685B (en) | 2016-08-29 | 2016-08-29 | Purification process of white artificial diamond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106365685A CN106365685A (en) | 2017-02-01 |
| CN106365685B true CN106365685B (en) | 2021-04-02 |
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ID=57904107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610744994.7A Active CN106365685B (en) | 2016-08-29 | 2016-08-29 | Purification process of white artificial diamond |
Country Status (1)
| Country | Link |
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| CN (1) | CN106365685B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108557778A (en) * | 2018-06-04 | 2018-09-21 | 合肥师范学院 | A kind of method of acid solution and the dissolving iron nail using it |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2007113361A (en) * | 2007-04-10 | 2008-10-27 | Ольга Алексеевна Козьменко (RU) | METHOD FOR DIAMOND CLEANING |
| CN100497169C (en) * | 2007-05-18 | 2009-06-10 | 南阳中南金刚石有限公司 | Artificial diamond purification technique |
| CN102616776A (en) * | 2012-04-09 | 2012-08-01 | 江苏金海丰硬质材料科技有限公司 | Purification method of nano diamond ash material |
| CN103482623B (en) * | 2013-09-05 | 2015-06-24 | 大连理工大学 | Method for preparing nano diamonds by using direct-current arc process |
| CN105384168A (en) * | 2015-09-25 | 2016-03-09 | 郑州华晶金刚石股份有限公司 | Novel nano-diamond preparation process |
| CN105480972B (en) * | 2015-12-25 | 2017-10-13 | 山东重山光电材料股份有限公司 | A kind of continuous preparation method of fluorinated dlc |
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2016
- 2016-08-29 CN CN201610744994.7A patent/CN106365685B/en active Active
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| CN106365685A (en) | 2017-02-01 |
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Address after: 454763 Henan FeiMeng Diamond Industry Co., Ltd., Qianyao village, Chengbo Town, Mengzhou City, Jiaozuo City, Henan Province Patentee after: Henan FeiMeng diamond Co.,Ltd. Address before: 454763 Henan FeiMeng Diamond Industry Co., Ltd., Qianyao village, Chengbo Town, Mengzhou City, Jiaozuo City, Henan Province Patentee before: Henan Famous Diamond Industrial Co.,Ltd. |
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