CN105363386A - High-temperature high-pressure preparation process for life diamond - Google Patents
High-temperature high-pressure preparation process for life diamond Download PDFInfo
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- CN105363386A CN105363386A CN201510698587.2A CN201510698587A CN105363386A CN 105363386 A CN105363386 A CN 105363386A CN 201510698587 A CN201510698587 A CN 201510698587A CN 105363386 A CN105363386 A CN 105363386A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
- B01J3/065—Presses for the formation of diamonds or boronitrides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/0605—Composition of the material to be processed
- B01J2203/061—Graphite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/00033—Continuous processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
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Abstract
The invention discloses a high-temperature high-pressure preparation process for a life diamond. High-temperature treatment is carried out on the hair of the human body or animals and carbohydrate of constituent parts of all animals and plants in the vacuum atmosphere or reducing atmosphere or inert atmosphere, and solid carbon is extracted out; solid carbon is soaked in strong acid and strong base, impurities are removed, and purification is carried out; high-temperature graphitization is carried out; diamond powder or particles are generated under the treated graphite and metal catalytic agent condition at high temperature and high pressure; the generated diamond powder or particles are adopted as raw materials, a temperature differential method and a seeding method are applied, and gem-level large-particle diamond single crystals are generated at high temperature and high pressure; the gem-level large-particle diamond single crystals are cut and processed into the life diamond. The diamond powder or the mixture of the diamond powder and graphite powder is adopted as a carbon source, the problems of cavity pressure drop and deformation can be avoided, and growth of the high-quality single crystals is facilitated.
Description
Technical field
The present invention relates to diamond preparation field, specifically, relate to a kind of with the carbon extracted in human body/animal hair or other animals and plants organism for the method for diamond prepared by raw material.
Background technology
Diamond is made up of carbon, has the crystalline solid of cubic structure.Diamond has the highest hardness and pyroconductivity in known all material, is widely used in various industrial processes and semiconductor heat-dissipating industry.Gem Grade bulky diamond is generally referred to as diamond after cutting processing.
Rough diamond is formed under the high temperature and high pressure environment of inner about less than 150 kilometers of earth mantle, and the motion with volcano eruption and the earth's crust is brought to earth's surface.Because of the visual effect that it is hard, rare and dazzling, be described as " king of jewel ".
Carbonado is in nineteen fifty-five General Electric (U.S.A.) (GE) company, and by graphite and iron, cobalt, the metal solvent of the periodic table of elements such as nickel the 8th race, at HTHP, (pressure is greater than 5GPa, and temperature is greater than 1200 DEG C first.) successfully synthesize under environment.The seventies in last century, GE company temperature differential method (crystal seed method) successful growth goes out carat level bulky diamond monocrystalline.The nineties in last century, Japanese inorganic material research institute has delivered carbonate, sulfate, salt, sulphur, the nonmetallic materials such as phosphorus change adamantine method as catalyst from graphite, but the method needs higher pressure (being greater than 7GPa) and temperature (being greater than 1700 DEG C).
China Patent No. CN101124158A discloses and extract carbon from human body or animal ceratin (comprising hair), and then a kind of method of diamond growth at high temperature under high pressure.China Patent No. CN101171987A discloses and extracts carbon from human body or animal hair, and then diamond growth at high temperature under high pressure.But this patent does not announce concrete implementation method.China Patent No. CN104030284A discloses and extracts carbon from human body or animal hair, then by carbon graphite, and then diamond growth at high temperature under high pressure.As shown in Figure 1, above several method comprises extraction carbon, the process of the high temperature graphitization of carbon, and graphite is the Growth of Single Crystal Diamond process under the HTHP of carbon source.
The present invention uses human body/animal hair, or other animals and plants organism is that raw material extracts solid carbon, by the HTHP production technology of uniqueness, grows the diamond of exclusive peculiar individuality.Thus impart the feature of diamond life, to the supplier of hair, there is special commemoration meaning.
Summary of the invention
For the above-mentioned problems in the prior art, technical problem to be solved by this invention is to provide one human body/animal hair, or other animals and plants organism is the method that life diamond prepared by raw material.
The present invention seeks to realize like this:
A HTHP preparation technology for life diamond, carries out as follows:
(1) in vacuum, reducing atmosphere or inert atmosphere, to human body or animal hair, the carbohydrate of all vegeto-animal parts carries out high-temperature process, therefrom extracts solid carbon;
(2) immerse in strong acid and highly basic to this solid carbon, remove impurity, carry out purification processes; High temperature graphitization process is carried out to the solid carbon after purifying;
(3), under the graphite after process and metal solvent condition, bortz powder or particle is generated at high temperature under high pressure;
(4) be raw material by the bortz powder of generation or particle, application temperature differential method (crystal seed method), grows Gem Grade bulky diamond monocrystalline at high temperature under high pressure; This diamond single crystal comprises yellow, red (pink), blue, different colours such as colourless (whites).
(5) be life diamond by this Tabular gem-grade diamond cutting processing.
In above-mentioned steps 1, solid carbon major part is amorphous carbon.
In above-mentioned steps 2, graphitization processing is carried out in vacuum or protective atmosphere stove, and graphitization temperature is greater than 2000 DEG C.
In above-mentioned steps 3 and step 4, synthesis pressure is greater than 5GPa, and temperature is greater than 1200 DEG C.
Beneficial effect: when using the graphite carbon source of conventional method, because adamantine solid density (3.5 grams/cc) is larger than the solid density (2.2 grams/cc) of graphite, graphite is transformed into adamantine volume contraction can cause synthetic cavity pressure drop, cause the distortion of synthetic cavity simultaneously, and then affect the quality of monocrystalline.
Accompanying drawing explanation
Fig. 1 is traditional process chart;
Fig. 2 process chart of the present invention.
Detailed description of the invention
Embodiment one:
As shown in Figure 2,
1,100 grams of human hairs are placed in high temperature furnace, after vacuumizing, pass into hydrogen, then reduction furnace is carried out being heated to 1000 DEG C, and be incubated 1 hour, obtain 11 grams of solid carbon.
2, this solid carbon is heated in chloroazotic acid (hydrochloric acid/nitric acid=3/1) boiling process 1 hour, then in the NaOH of heating, processes 1 hour, obtain 9 grams, pure carbon.
3, the solid carbon after purification is placed in graphitizing furnace, passes into nitrogen after vacuumizing to pressure-fired, heat 10 hours at 2900 DEG C, obtain 7 grams, graphite.
4, this graphite is placed in specific Synthetic block, under the catalysis of iron nickel cobalt metal solvent, pressure 5.5GPa, under temperature 1350 DEG C of conditions, obtains bortz powder 4 grams for 30 minutes.
5, using this bortz powder as carbon source, grow 180 hours by temperature differential method (crystal seed method), obtain the diamond single crystal of about 3 carats.
6, by this diamond single crystal through cutting processing, obtain 1 carat of life diamond.
Embodiment two:
As shown in Figure 2,
1, by 70 grams of human hairs in nitrogen, heat to 950 DEG C, and be incubated 2 hours, obtain 9 grams of solid carbon.
2, this solid carbon is heated in chloroazotic acid boiling process 2 hours, then in the potassium hydroxide of heating, processes 1 hour, obtain 7 grams, pure carbon.
3, the solid carbon after purification is placed in graphitizing furnace, after vacuumizing, passes into argon gas, heat 5 hours at 3000 DEG C, obtain 5 grams, graphite.
4, this graphite is placed in specific Synthetic block, under the nonmetal catalyst catalysis of CaCO3, pressure, at 7GPa, obtains bortz powder 3 grams at temperature 1850 DEG C 1 hour.
5, using this bortz powder as carbon source, grow 100 hours by temperature differential method (crystal seed method), obtain the diamond single crystal of about 1 carat.
6, by this diamond single crystal through cutting processing, obtain 0.3 carat of life diamond.
Embodiment three:
As shown in Figure 2,
1, by 150 grams of animal hairs in vacuum environment, heat to 900 DEG C, and be incubated 2 hours, obtain 15 grams of solid carbon.
2, this solid carbon is heated in chloroazotic acid boiling process 2 hours, then in hydrofluoric acid, processes 1 hour, obtain 13 grams, pure carbon.
3, the solid carbon after purification is placed in graphitizing furnace, after vacuumizing, passes into nitrogen, heat 3 hours at 3100 DEG C, obtain 10 grams, graphite.
4, this graphite is placed in specific Synthetic block, when without any catalyst, pressure, at 10GPa, obtains bortz powder 6 grams at temperature 3000 DEG C 10 minutes.
5, using this bortz powder as carbon source, grow 250 hours by temperature differential method (crystal seed method), obtain the diamond single crystal of about 5 carats.
6, by this diamond single crystal through cutting processing, obtain 2 carats of life diamonds.
Claims (4)
1. a HTHP preparation technology for life diamond, carries out as follows:
(1) in vacuum, reducing atmosphere or inert atmosphere, to human body or animal hair, the carbohydrate of all vegeto-animal parts carries out high-temperature process, therefrom extracts solid carbon;
(2) immerse in strong acid and highly basic to this solid carbon, remove impurity, carry out purification processes; High temperature graphitization process is carried out to the solid carbon after purifying;
(3) graphite after process, under metal solvent or nonmetal catalyst condition, generates bortz powder or particle at high temperature under high pressure;
(4) be raw material by the bortz powder of generation or particle, application temperature differential method, grows Gem Grade bulky diamond monocrystalline at high temperature under high pressure;
(5) be life diamond by this Tabular gem-grade diamond cutting processing.
2. the HTHP preparation technology of life diamond according to claim 1, is characterized in that: in described step 1, solid carbon major part is amorphous carbon.
3. the HTHP preparation technology of life diamond according to claim 1, is characterized in that: in described step 2, graphitization processing is carried out in vacuum or protective atmosphere stove, and graphitization temperature is greater than 2000 DEG C.
4. the HTHP preparation technology of life diamond according to claim 1, is characterized in that: in described step 3 and step 4, synthesis pressure is greater than 5GPa, and temperature is greater than 1200 DEG C.
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| CN201510698587.2A CN105363386A (en) | 2015-10-23 | 2015-10-23 | High-temperature high-pressure preparation process for life diamond |
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| CN201510698587.2A CN105363386A (en) | 2015-10-23 | 2015-10-23 | High-temperature high-pressure preparation process for life diamond |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996499A (en) * | 2018-06-01 | 2018-12-14 | 花涛 | A kind of technique of animal or ashes of the dead production bone ash customization diamond |
| CN110615434A (en) * | 2019-10-30 | 2019-12-27 | 江西汇善工艺品有限公司 | Method for preparing artificial diamond by using bone ash and product thereof |
| CN110759342A (en) * | 2019-10-30 | 2020-02-07 | 江西汇善工艺品有限公司 | Method for preparing diamond by using human or animal bone ash and product thereof |
| CN114029002A (en) * | 2021-11-02 | 2022-02-11 | 富耐克超硬材料股份有限公司 | Synthesis method and synthesis device of single crystal diamond |
| CN114772592A (en) * | 2022-06-21 | 2022-07-22 | 成都沃特塞恩电子技术有限公司 | Diamond cultivation equipment adjusting method and device, electronic equipment and storage medium |
| CN115367731A (en) * | 2022-08-29 | 2022-11-22 | 洛阳美钻钻石培育有限公司 | Extraction process of biological carbon powder |
| CN115849343A (en) * | 2022-12-22 | 2023-03-28 | 富耐克超硬材料股份有限公司 | Biological carbon powder, extraction method of biological carbon powder and preparation method of diamond |
Citations (3)
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| US5106393A (en) * | 1988-08-17 | 1992-04-21 | Australian National University | Diamond compact possessing low electrical resistivity |
| CN1404913A (en) * | 2002-11-07 | 2003-03-26 | 华北工学院 | Pollution-free gas-phase oxidation separation purification method for artificial diamond |
| CN104030284A (en) * | 2014-06-23 | 2014-09-10 | 深圳市赛普戴蒙德科技有限公司 | Hair-based method for fabricating diamond |
-
2015
- 2015-10-23 CN CN201510698587.2A patent/CN105363386A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106393A (en) * | 1988-08-17 | 1992-04-21 | Australian National University | Diamond compact possessing low electrical resistivity |
| CN1404913A (en) * | 2002-11-07 | 2003-03-26 | 华北工学院 | Pollution-free gas-phase oxidation separation purification method for artificial diamond |
| CN104030284A (en) * | 2014-06-23 | 2014-09-10 | 深圳市赛普戴蒙德科技有限公司 | Hair-based method for fabricating diamond |
Non-Patent Citations (1)
| Title |
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| 王光祖: "《超硬材料制作与应用技术》", 30 September 2013, 郑州大学出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996499A (en) * | 2018-06-01 | 2018-12-14 | 花涛 | A kind of technique of animal or ashes of the dead production bone ash customization diamond |
| CN110615434A (en) * | 2019-10-30 | 2019-12-27 | 江西汇善工艺品有限公司 | Method for preparing artificial diamond by using bone ash and product thereof |
| CN110759342A (en) * | 2019-10-30 | 2020-02-07 | 江西汇善工艺品有限公司 | Method for preparing diamond by using human or animal bone ash and product thereof |
| CN110615434B (en) * | 2019-10-30 | 2022-11-18 | 江西汇善工艺品有限公司 | Method for preparing artificial diamond by using bone ash and product thereof |
| CN114029002A (en) * | 2021-11-02 | 2022-02-11 | 富耐克超硬材料股份有限公司 | Synthesis method and synthesis device of single crystal diamond |
| CN114772592A (en) * | 2022-06-21 | 2022-07-22 | 成都沃特塞恩电子技术有限公司 | Diamond cultivation equipment adjusting method and device, electronic equipment and storage medium |
| CN114772592B (en) * | 2022-06-21 | 2022-09-16 | 成都沃特塞恩电子技术有限公司 | Diamond cultivation equipment adjusting method and device, electronic equipment and storage medium |
| CN115367731A (en) * | 2022-08-29 | 2022-11-22 | 洛阳美钻钻石培育有限公司 | Extraction process of biological carbon powder |
| CN115849343A (en) * | 2022-12-22 | 2023-03-28 | 富耐克超硬材料股份有限公司 | Biological carbon powder, extraction method of biological carbon powder and preparation method of diamond |
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Effective date of registration: 20180227 Address after: No. 16, Yuzhong District, Chongqing, Chongqing, 5-2 Applicant after: Ya Jun Address before: 400707 Beibei District, Chongqing City, Chua Jia town, Ying Tian photoelectric industry Valley 26-3 Applicant before: CHONGQING TIANYU HONGFENG NEW MATERIAL TECHNOLOGY CO., LTD. |
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