IE35509L - Synthesis of diamond - Google Patents
Synthesis of diamondInfo
- Publication number
- IE35509L IE35509L IE101471A IE101471A IE35509L IE 35509 L IE35509 L IE 35509L IE 101471 A IE101471 A IE 101471A IE 101471 A IE101471 A IE 101471A IE 35509 L IE35509 L IE 35509L
- Authority
- IE
- Ireland
- Prior art keywords
- reactor
- compounds
- mixture
- graphite
- temperature
- Prior art date
Links
- 239000010432 diamond Substances 0.000 title abstract 5
- 229910003460 diamond Inorganic materials 0.000 title abstract 3
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 5
- 150000001875 compounds Chemical class 0.000 abstract 5
- 239000000203 mixture Substances 0.000 abstract 5
- 229910002804 graphite Inorganic materials 0.000 abstract 3
- 239000010439 graphite Substances 0.000 abstract 3
- 229910052716 thallium Inorganic materials 0.000 abstract 3
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000003575 carbonaceous material Substances 0.000 abstract 2
- 229910018068 Li 2 O Inorganic materials 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- 229910052733 gallium Inorganic materials 0.000 abstract 1
- 229910052738 indium Inorganic materials 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
Classifications
-
- 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
- B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
-
- 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
-
- 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
- B01J2203/065—Composition of the material produced
- B01J2203/0655—Diamond
-
- 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
- B01J2203/0675—Structural or physico-chemical features of the materials processed
- B01J2203/068—Crystal growth
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Carbon And Carbon Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
1315778 Diamonds UKRAINSKY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO - ISSLEDOVATELSKY KONSTRUKTORSKO - TEKHNOLOGICHESKY INSTITUT SINTETICHESKIKH SVERKHTVERDYKH MATERIALOV I INSTRUMENTA GOSPLANA UKRAINSKOI SSR 12 Aug 1971 [12 Aug 1970 17 Nov 1970(2)] 37938/71 Heading C1A Diamonds are made by subjecting carbon, preferably graphite, or a material capable of yielding free carbon under the reaction conditions, in contact with a compound of In, Tl, Ga, Ba, Be or an alkali metal to a temperature of at least 1800 C. and a pressure corresponding to this temperature within the range of diamond stability as defined in the graphite/diamond equilibrium system. The contact may arise by (1) forming a homogeneous mix of the carbon material and one or more of the compounds, (2) placing discs of the carbon material and of the compounds alternately in the reactor, or (3) disposing the compounds adjacent the ends of the reactor. Exemplified compounds in the form of a mix with graphite, preferably of spectral purity are Tl 2 O, Tl 2 CO 3 , In 2 O, Ga 2 O, a mixture of Tl 2 O and Tl 2 CO 3 , BaCO 3 , BeCO 3 , BeO, a mixture of BaO and BaCO 3 , LiO 2 , Li 2 CO 3 , Na 2 CO 3 , Na 2 O, K 2 CO 3 , K 2 O, a mixture of Li 2 O and Li 2 CO 3 , and Li 2 C 2 . The reaction is effected in conventional apparatus and the temperature in the reactor controlled by measuring changes in the electrical resistance of metals under pressure in the reactor.
[GB1315778A]
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1468619 | 1970-08-12 | ||
| SU1486689 | 1970-11-17 | ||
| SU1486687 | 1970-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE35509L true IE35509L (en) | 1972-02-12 |
| IE35509B1 IE35509B1 (en) | 1976-03-03 |
Family
ID=27356197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE101471A IE35509B1 (en) | 1970-08-12 | 1971-08-11 | Improvements in and relating to the synthesis of diamond |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE771233A (en) |
| CA (1) | CA958309A (en) |
| CH (1) | CH562162A5 (en) |
| DE (1) | DE2140139C3 (en) |
| FR (1) | FR2131189A5 (en) |
| GB (1) | GB1315778A (en) |
| IE (1) | IE35509B1 (en) |
| SE (1) | SE377327B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2721644C3 (en) * | 1977-05-13 | 1981-11-05 | Woermann, Eduard, Prof.Dr., 5100 Aachen | Process for the synthesis of diamonds |
| AU2002368368A1 (en) * | 2002-11-15 | 2004-06-15 | University Of Science And Technology Of China | Process for producing diamond, graphite or mixture of diamond and graphite |
| CN116239111B (en) * | 2023-05-12 | 2023-08-01 | 北方工业大学 | Method for low-pressure synthesis of PDC powder precursor |
-
1971
- 1971-08-10 DE DE19712140139 patent/DE2140139C3/en not_active Expired
- 1971-08-11 SE SE1025971A patent/SE377327B/xx unknown
- 1971-08-11 CA CA120,304A patent/CA958309A/en not_active Expired
- 1971-08-11 IE IE101471A patent/IE35509B1/en unknown
- 1971-08-11 FR FR7129376A patent/FR2131189A5/fr not_active Expired
- 1971-08-12 GB GB3793871A patent/GB1315778A/en not_active Expired
- 1971-08-12 BE BE771233A patent/BE771233A/en unknown
- 1971-08-12 CH CH1187071A patent/CH562162A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2131189A5 (en) | 1972-11-10 |
| DE2140139A1 (en) | 1972-03-16 |
| SE377327B (en) | 1975-06-30 |
| BE771233A (en) | 1972-02-14 |
| CA958309A (en) | 1974-11-26 |
| DE2140139C3 (en) | 1978-09-21 |
| IE35509B1 (en) | 1976-03-03 |
| GB1315778A (en) | 1973-05-02 |
| DE2140139B2 (en) | 1978-02-09 |
| CH562162A5 (en) | 1975-05-30 |
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